Dissertations / Theses on the topic 'Electric platform'
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Bowlin, Oscar E. "Modeling and simulation of the free electron laser and railgun on an electric Naval surface platform." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Mar%5FBowlin.pdf.
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Talvistu, Siiri. "EM emissions test platform implementationfor satellite electric propulsion systems andelectronic subsystems." Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76130.
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Modern gridded ion thrusters for CubeSats operate by generating high power and canpose challenging problems with Electromagnetic Interference (EMI). In order to verifycompatibility with neighbouring equipment, strict standards such as the militarystandard MIL-STD-461G, are required to be followed to achieve ElectromagneticCompatibility (EMC). To avoid abrupt and cataclysmic delays in production time, incase the product fails to comply with the requirements, companies integrate in-housepre-compliance tests into their development phase. The objective is to implementin-house measurement methods on an electric propulsion model NPT30 developedby ThrustMe. This document explains the process and methods to perform conductedemission test on power lines and radiated emission tests in the magneticfield. A custom measurement system integrity verification was developed for theradiated emission test. The presented results provide the engineers at ThrustMe aninsight on the electromagnetic behaviour on the ion thruster NPT30 and whethermodifications need to be included in the next development iteration to mitigate forthe detected excessive emission levels. When EMC methods are implemented earlyon in the development process, there are more pre-emptive mitigation options withless costs in time and money. By performing in-house pre-compliance tests andtaking measures to prepare for the tests at a certified EMC test house, the companycan be more confident in their product at passing the EMC tests. Based on the twoperformed in-house tests, the engineers at ThrustMe began to include mitigationmethods in the following circuit design iterations.
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Vásquez, Cristian Andrés Morales. "A methodology to select the electric propulsion system for Platform Supply Vessels (PSV)." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3135/tde-26122014-164655/.
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The present work proposes a methodology to define the electric propulsion system for PSVs. This methodology was applied to a case study: the conceptual design of a PSV for operation at the pre-salt fields at Santos basin. First, four different alternatives of electric propulsion systems for the PSV are presented and sized. The first one has induction motors as main propulsion motors, the second one has synchronous motors as main propulsion motors; the third and fourth alternatives are the same as the first and second, respectively, with a batteries bank connected to the main switchboard. Each of the four arrangements was contemplated with two options for Diesel generators: high speed and medium speed generator sets. The mass, volume, fuel consumption, exhaust gases emissions and reference capital costs for each arrangement are estimated and analyzed. Moreover, an economic analysis through the Net Present Value (NPV) is performed. The methodology ends with the Analytic Hierarchy Process (AHP) to support the decision making procedure. Some of the parameters obtained for each arrangement (mass, volume, fuel consumption, exhaust gases and NPV) are used as criteria and sub-criteria for selection. Two scenarios are evaluated, the first scenario gives more importance to the financial component of the design; the second scenario sets the exhaust gases emissions as the more significant parameter. The results were different, the arrangements 1 and 2 with medium speed Diesel generator sets appear as the most suitable option from the economical point of view; whereas the arrangements with batteries and high speed Diesel gensets are the best options to reduce the exhaust emissions.O presente trabalho propôs uma metodologia para definir o sistema de propulsão elétrica para PSVs. A metodologia foi aplicada para um caso estudo: o projeto conceitual de um PSV para operar nos campos do pré-sal na Bacia de Santos. Primeiramente, as quatro diferentes alternativas de sistemas de propulsão elétrica para PSV são apresentadas e dimensionadas. A primeira alternativa tem motores de indução como motores de propulsão principal, a segunda alternativa tem motores síncronos como motores de propulsão principal; a terceira e quarta alternativas são as mesmas que a primeira e a segunda, respectivamente, com um banco de baterias conectado ao quadro principal. Cada um dos quatro arranjos foi considerado com duas opções para Diesel geradores: Diesel geradores de alta e média rotação. A massa, volumem, consumo de combustível, emissão de gases e os custos capitais de referência para cada arranjo são estimados e analisados. Adicionalmente, uma análise económica usando o Valor Presente Líquido (VPL) é feita. A metodologia finaliza com o Analytic Hierarchy Process (AHP) para apoiar o processo de escolha de alternativa. Alguns dos parâmetros obtidos para cada arranjo (massa, volumem, consumo de combustível, gases poluentes e o VPL) são utilizados como critérios de seleção. Dois cenários são avaliados, o primeiro cenário dá maior importância à parte financeira do projeto, o segundo cenário estabelece as emissões de gases poluentes como o parâmetro mais significativo. Os resultados foram diferentes, os arranjos 1 e 2 com Diesel geradores de média rotação se apresentam como a opção mais adequada desde o ponto de vista econômico; enquanto os arranjos com baterias e Diesel geradores de alta rotação são a melhor opção para reduzir as emissões de gases poluentes.
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Pavuluri, Sri Harsha. "Development of an Automated Test Platform for Characterization and Performance Assessment of Electronic Modules in Electric Thrusters : The TESPEMET Project." Thesis, Luleå tekniska universitet, Rymdteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-76504.
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There has been a sharp increase in the market for electric propulsion systems for small satellites in the recent years. Electric propulsion systems have become smaller, more efficient and cheaper, which made them ideal for small satellites because they have a low thrust requirement and benefit significantly from the high specific impulse (Isp) that is characteristic to electric thrusters. These thrusters are generally fabricated and tested manually and there is a low degree of automation in the process. As the demand for the thrusters increases, there is a need to improve the speed of the fabrication and testing process. The Test Platform for Electronics Modules in Electric Thrusters (TESPEMET) project at ThrustMe is an attempt to design a system that addresses this issue. The vision is to have a test platform that facilitates the testing of ThrustMe's Electric Thrusters by applying various source and load conditions, emulating events while performing instrumentation during the test process and generating a test report at the end of the test procedure. The development of such a test platform would enable and accelerate the test and qualification process of the thrusters significantly. This thesis presents the technical design of this test platform along with the results obtained, encountered problems and solutions. Future work and design changes have also been proposed based on the knowledge gained during the Research and Development process.
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Grychtol, Bartlomiej. "A virtual reality electric oowered wheelchair simulator : a research platform for brain computer interface experimentation." Thesis, University of Strathclyde, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.549419.
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McGehee, Will Alan. "Design Principles and Preliminary Testing of a Micropropulsion Electrospray Thruster Research Platform." DigitalCommons@CalPoly, 2019. https://digitalcommons.calpoly.edu/theses/2064.
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The need for micropropulsion solutions for spacecraft has been steadily increasing as scientific payloads require higher accuracy maneuvers and as the use of small form-factor spacecraft such as CubeSats becomes more common. Of the technologies used for this purpose, electrospray thrusters offer performance that make them an ideal choice. Electrosprays offer high accuracy impulse bits at low power and high efficiency, and have low volume requirements. Design choice reasoning and preliminary testing results are presented for two electrospray thruster designs. The first thruster, named the Demonstration thruster, is operated in atmospheric conditions and serves as a highly visible example of the basic concepts of electrospray technology applied to micropropulsion. It features a single capillary needle emitter and the acetone propellant flow is driven actively by a syringe pump. The second thruster, named the Research thruster, is operated in the vacuum environment and is designed for modularity for its expected use in future research efforts. Propellant flow is also driven actively using a syringe pump. Initial configuration of the Research thruster is a linear array of five capillary needle emitters, though testing is conducted with only one emitter in this thesis. Tests using un-doped glycerol and sodium iodide doped glycerol (20% by weight) are conducted for the Research thruster. Both thruster designs use stainless steel 18 gauge blunt dispensing needles (0.038 in / 0.965 mm ID) as their emitters. Applied voltage to the emitter(s) relative to the grounded extractor is swept from 2100 V to 3700 V for the Demonstration thruster testing and from 4000 V to 4500 V for the Research thruster. Currents incident on a collection plate downstream of the emission plume and on the extractors of the thrusters were measured directly with a pico-ammeter. Measurements made during testing of the Demonstration thruster are inconsistent due to charge loss as propellant travels through the air, though currents as high as 5.1x10-9 A on the collection plate and 2x10-7 A on the extractor are recorded. Currents for Research thruster testing using un-doped glycerol were measured as high as 4.9x10-8 A on the collection plate and 5x10-9 A on the extractor, showing an interception rate as high as 17%. Currents using sodium iodide doped glycerol were measured as high as 7x10-7 A on the collection plate. Discussion is given for the visual qualities of cone-jet emission for all testing. Keywords:
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Seo, Jae Hyeong. "Silicon-Based Resonant Microsensor Platform for Chemical and Biological Applications." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19835.
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The main topic of this thesis is the performance improvement of microresonators as mass-sensitive biochemical sensors in a liquid environment. Resonant microstructures fabricated on silicon substrates with CMOS-compatible micromachining techniques are mainly investigated. Two particular approaches have been chosen to improve the resolution of resonant chemical/biochemical sensors. The first approach is based on designing a microresonator with high Q-factor in air and in liquid, thus, improving its frequency resolution. The second approach is based on minimizing the frequency drift of microresonators by compensating for temperature-induced frequency variations.
A disk-shape resonant microstructure vibrating in a rotational in-plane mode has been designed, fabricated and extensively characterized both in air and in water. The designed resonators have typical resonance frequencies between 300 and 1,000kHz and feature on-chip electrothermal excitation elements and a piezoresistive Wheatstone-bridge for vibration detection. By shearing the surrounding fluid instead of compressing it, damping is reduced and quality factors up to 5800 in air and 94 in water have been achieved. Short-term frequency stabilities obtained from Allan-variance measurements with 1-sec gate time are as low as 1.1 10-8 in air and 2.3 10-6 in water. The performance of the designed resonator as a biological sensor in liquid environment has been demonstrated experimentally using the specific binding of anti-beta-galactosidase antibody to beta-galactosidase enzyme covalently immobilized on the resonator surface.
An analytical model of the disk resonator, represented by a simple harmonic oscillator, has been derived and compared with experimental results. The resonance frequency and the Q-factor of the disk resonator are determined from analytical expressions for the rotational spring constant, rotational moment of inertia, and energy loss by viscous damping. The developed analytical models show a good agreement with FEM simulation and experimental results and facilitate the geometrical optimization of the disk-type resonators.
Finally, a new strategy to compensate for temperature-induced frequency drifts of resonant microstructures has been developed based on a controlled stiffness modulation by an electronic feedback loop. The developed method is experimentally verified by compensating for temperature-induced frequency fluctuations of a microresonator. In principle, the proposed method is applicable to all resonant microstructures featuring excitation and detection elements.
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Ncube, Alexander Mandlenkosi. "IEC 61850-9-2 based sampled values and IEC 61850-8-1 Goose messages mapping on an FPGA platform." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2377.
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Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2016.Electricity substation monitoring and control systems have evolved over the years from simple systems capable of achieving minimalistic functions to autonomous, self-healing smart grid schemes (Farhangi, 2010). The migration of technology to networked smart grid systems was driven by the need for standardisation of communication networks, system configuration and also the reduction of system implementation costs and engineering time. Before the introduction of a uniform communication standard, legacy (non-standardised) communication protocols, for example, the Distributed Network Protocol (DNP3) were used by Remote Terminal Units (RTUs) for information exchange (Luwaca, 2014). These communication protocols could not provide a standard naming convention or data semantics since the data/information was accessed using an address-based system. The implementation of automation systems based on legacy protocols and RTUs was expensive because of parallel copper wiring required to connect instrument transformers and circuit breakers to multiple RTUs for protection and monitoring functions (Iloh et al., 2014). Legacy systems refer to Supervisory Control and Data Acquisition (SCADA) systems implemented using RTUs and legacy communication protocols. Legacy systems tended to be vendor specific because devices from different vendors did not support the same communication protocol. These issues led to the introduction of the IEC 61850 standard. The IEC 61850 standard for “communication networks and systems in a substation” provides standardised naming convention, data semantics, standardised device configuration and also device interoperability and interchangeability in some instances. The IEC 61850 standard provides a solution to expensive parallel copper wiring and standardisation issues experienced with legacy protocols. In as much as the introduction of the IEC 61850 standard addresses problems experienced with legacy system there is still a need to provide inexpensive access to IEC 61850-compliant devices and effective knowledge transfer to facilitate implementation of automation systems based on this standard. The development of an IEC 61850-compliant device requires a specialised skillset and financial investment for research and industrialisation therefore only a few vendors manufacture these devices resulting in an increase in production and manufacturing costs. For this reason this research project develops VHDL modules for mapping IEC 61850-9-2 Sampled Value (SV) messages and IEC 61850-8-1 Generic Object Oriented Substation Event (GOOSE) messages on a Field Programmable Gate Array (FPGA) platform. Sampled values are used for transmitting current and voltage transformer (CT and VT) measurements to protection devices while GOOSE messages exchange information/commands between primary equipment (CT, VT and circuit breaker) and protection devices over an Ethernet network known as the process bus.
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Melo, Lucas Silveira. "Development of a platform for implementing multi-agents systems for application to automatic restoration of electric power distribution systems." Universidade Federal do CearÃ, 2015. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=15234.
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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgicoIt is common the occurence of permanent faults in power distribution systems. In a typical radial power distribution system when the fault protection system operates, may cause power-off not only in the fault section, but also to all customers downstream the fault.Through disjunction devices normally closed along the feeder, and normaly open on its edges, is possible to isolate the faulty sector and reenergize the healthy ones, reducing the number of customers affected by a fault. Network operators normally do this procedure manually and in addition to demand a considerable ammount of time, is subject to errors on the part of the operator. In order to automate the analisys of the network and provided it of self-healing capacity, various methods have been proposed to solve this matter. Most of these approaches adopts a centralized strategy and do not address the aspect of electric power grid self-healing. In this work is proposed an approach that uses multi-agent systems for self-healing purposes of power distribution systems. Multi-agent are highly suitable for modelling distributed systems in the smart grid domain. For a safe recovery and without violation of operational restrictions the feeder agents perform an evaluation before device agents send any command to the network switches. The proposed multi-agent system is implemented in a agentâs development platform proposed in this work that uses the Python programming language. The platform is called PADE, Python Agent DEvelpment framework. The computer representation of the network, without simplifications, is accomplished by a data encoding based on the theory of graphs and named node-depth representation that serves as a basis for the development of an API of network representation that models each of the required components in the restoration analysis. The device agents communicate with IED that in turn control the switches in the network, by means of IEC 61850 protocols: GOOSE and MMS. To validate the proposed approach, computer simulations are performed using a simplified distribution power grid as a case study and a test platform with relay test case, protection and control IED, managed switch and embedded systems.
à comum a ocorrÃncia de faltas permanentes no sistema de distribuiÃÃo de energia elÃtrica. Por tratar-se de um sistema radial, a atuaÃÃo da proteÃÃo para estas faltas causa a desenergizaÃÃo nÃo sà do setor em falta, mas de todos os consumidores a jusante do setor onde ocorreu a falta. Fazendo uso dos dispositivos de disjunÃÃo normalmente fechados ao longo do alimentador e normalmente abertos nas suas bordas à possÃvel isolar o setor sob falta e re-energizar os setores sÃos, reduzindo o nÃmero de consumidores afetados por um defeito. Este procedimento à normalmente feito pelos operadores da rede, e alÃm de demandar um tempo considerÃvel, està sujeito à erros por parte do operador. No sentido de tornar automÃtica as anÃlises de restauraÃÃo da rede e prover o sistema da capacidade de auto-cura, tÃm sido propostas diversas metodologias para o problema. A maioria destas abordagens adota uma estratÃgia centralizada e nÃo abordam o aspecto de auto-cura da rede elÃtrica. Neste trabalho, à proposta uma abordagem utilizando sistemas multiagentes para recomposiÃÃo de setores de alimentadores de distribuiÃÃo de energia elÃtrica. A tÃcnica de sistemas multiagentes vem se mostrando bastante promissora no desenvolvimento de sistemas distribuÃdos em um contexto de redes elÃtricas inteligentes. Para que a recomposiÃÃo ocorra sem a violaÃÃo das restriÃÃes operacionais e de forma coerente, sÃo feitas anÃlises pelos agentes alimentadores antes que qualquer comando seja enviado para as chaves do sistema por meio de agentes dispositivo. O sistema multiagente proposto à implementado em uma plataforma de desenvolvimento de agentes proposta neste trabalho e que utiliza a linguagem de programaÃÃo Python. A plataforma tem o nome de PADE, Python Agent DEvelpment framework. A representaÃÃo computacional sem simplificaÃÃes da rede à proporcionada por uma codificaÃÃo de dados apoiada na teoria de grafos e denominada RepresentaÃÃo NÃ-Profundidade, que serve de base para o desenvolvimento de uma API de representaÃÃo da rede-elÃtrica que modela cada um dos componentes necessÃrios nas anÃlises de recomposiÃÃo. Ao agente dispositivo à dada a possibilidade de comunicaÃÃo com IED, que controlam as chaves do sistema, por meio dos protocolos da norma IEC 61850: GOOSE e MMS. Para validar a metodologia proposta sÃo realizadas simulaÃÃes computacionais utilizando uma rede de distribuiÃÃo simples como caso base e uma plataforma de testes com: mala de testes de relÃs, IED de proteÃÃo e controle de mercado, switch gerenciÃvel e placas de desenvolvimento de sistemas embarcados.
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Kong, Suyao. "Advanced passivity-based control for hybrid power systems : application to hybrid electric vehicles and microgrids." Thesis, Bourgogne Franche-Comté, 2020. http://indexation.univ-fcomte.fr/nuxeo/site/esupversions/a01b06c5-fb6c-452d-bd16-02b269cd0bb9.
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Un système hybride à base de pile à combustible (PàC) est une solution efficace pour faire face aux problèmes de pollution atmosphérique et de pénurie des combustibles fossiles. Cette thèse se concentre sur la conception de la commande pour les systèmes d'alimentation hybrides à base de PàC, et appliquée à deux applications : le véhicule électrique et le centre de données alimenté par un micro-réseau.Tout d'abord, cette thèse propose une commande basée sur la passivité pour un système hybride PàC/supercondensateurs (SCs). Cette commande a été conçue via la méthode de conception IDA-PBC (Interconnection and Damping Assignment - Passivity Based Control), afin de résoudre le problème de coordination des convertisseurs. L'état de charge des SCs ainsi que toutes les limitations sont intégrés directement dans la loi de commande. Un banc d'essais PHIL (Power Hardware-in-the-loop) est utilisé pour la validation. Ensuite, un filtre de Kalman étendu (EKF) est combiné avec la commande proposée, pour prévoir l'état de santé (SoH) de la pile à combustible. Enfin, un banc d'essais HIL (Hardware-in-the-loop) basé sur un FPGA INTEL / ALTERA est conçu afin de valider le fonctionnement des algorithmes en temps réel pour un véhicule commercial.Pour l'application à un micro-réseau, une commande passive est proposée pour un système hybride comprenant des panneaux photovoltaïques, une PàC, des SCs et un électrolyseur. La faisabilité de cette commande est validée par les résultats expérimentaux sur un banc d'essai PHIL. Ce travail est intégré au projet ANR DATAZERO.La nouveauté principale de cette commande est qu'elle intègre certaines contraintes de composants directement dans la loi de commande, en préservant la stabilité de l’ensemble du système, en boucle ferméeA Fuel cell (FC) hybrid power system is a promising solution to deal with the atmospheric pollution and fossil fuels shortage problems. This thesis focuses on the controller design for FC hybrid power systems, towards two applications: the hybrid electrical vehicle and the microgrid-powered datacenter.Firstly, this thesis proposes an advanced passivity-based control for a FC/super-capacitors (SCs) hybrid system. In order to solve the converters coordination problem, a controller designed using the design method Interconnection and Damping Assignment - Passivity-Based Control (IDA-PBC) is applied, which considers the state-of-charge of the SCs as well as voltage and current limitations. The proposed controller is validated on a Power Hardware-in-the-loop (PHIL) platform. Then an Extended Kalman Filter (EKF) is applied to forecast the State-of-Health (SoH) of the fuel cell and is combined with the proposed controller. Finally, a Hardware-in-the-loop (HIL) platform based on an INTEL/ALTERA FPGA is designed in order to validate the real-time operation of the algorithms for a specific case study with a commercial vehicle.For microgrid applications, a passivity-based controller for a hybrid power supply system for a green datacenter is proposed, including photovoltaic panels, a fuel cell, SCs and an electrolyzer. The feasibility of this non-linear controller is proven by the simulation results and experimental validation on a PHIL test bench. This work is integrated into the ANR DATAZERO project.The main novelty of the proposed controller is that it integrates some component constraints directly into the controller equations, while the locally asymptotic stability of the whole closed-loop system is preserved
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Deuty, Scott W. "Optimized design and analysis of a voltage-fed, push-pull, autotransformer battery discharger for the NASA space platform." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-08042009-040311/.
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Трусько, М. А. "Колісна платформа з автоматизованою системою керуванням рухом." Thesis, Чернігів, 2020. http://ir.stu.cn.ua/123456789/20552.
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Трусько, М. А. Колісна платформа з автоматизованою системою керуванням рухом : магістерська робота : 172 Телекомунікації та радіотехніка / М. А. Трусько ; керівник роботи Велігорський О. А. ; Національний університет «Чернігівська політехніка», кафедра радіотехнічних та вбудованих систем. – Чернігів, 2020. – 94 с.Випускна кваліфікаційна робота магістра Труська М.А. за спеціальністю 172 «Телекомунікації та радіотехніка» присвячена розробці колісної платформи з автоматизованою системою керування рухом за допомогою смартфону. У відповідності до індивідуального завдання в рамках роботи було проведено огляд аналітичних джерел, розроблено схеми електричні структурну та принципову, схему програми. В конструкторській частині роботи розроблено друковану плату пристрою та корпус платформи, виконаний у вигляді танку. Для вище перерахованих схем були зроблені розрахунки, описано принцип їх роботи, розроблено вбудоване програмне забезпечення для мікроконтролеру, яке здійснює прийом команд та керування двигунами та автоматизоване обминання перешкод. Результати розробки було перевірено експериментально.
Graduation master thesis completed by Trusko Michailo on specialty 172 “Telecommunications and Radio Engineering” is dedicated to the development of a wheeled platform with an automated traffic control system by means a smartphone. In accordance with the individual task in the framework of the work the next tasks have been carried out: a review of analytical sources, development of electrical structural and schematic diagrams, diagram of the program. In the design part of the work, the printed circuit board of the device and the body of the platform, made in the form of a tank, has been developed. Calculations were made for the above mentioned diagrams; the principle of their operation was also described. The built-in firmware for the microcontroller has been developed with the next functions: receiving of the commands, control of motors, automated bypassing of obstacles. The results of the development have been tested experimentally.
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Šabršula, Jakub. "Design elektrického nádražního vozíku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230599.
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This Master's Thesis deals with design of innovative electric platform truck with revolving cabin. This approach substantially increases comfort and safety, when driving backward. First part of the thesis is analytical and summarizes development and current state of platform trucks from perspective of design and technology, second part deals with design concept from perspective of shape and aesthetics, ergonomy, graphic design and technological issues.
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Brady, Richard. "A Cross Platform Framework for Software Defined Radio." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/2056.
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Thesis (MScEng (Electical and Electronic Engineering))--University of Stellenbosch, 2007.Software defined radios (SDRs) implement in software those parts of a radio which have traditionally been implemented in analogue hardware. We explain the importance of this definition and introduce reconfigurability and portability as two further goals. Reconfigurabilty is a property of the SDR platform, which may be a microprocessor, configurable hardware device, or combination of the two. We demonstrate that the field-programmable gate array is suficient for the implementation of practical SDR systems. Portability, on the other hand, is a property of the modulation and demodulation software, also known as waveform specification software. We evaluate techniques for achieving portability and show that waveforms can be specified in a generic form suitable for the autogeneration of implementations targetting both microprocessor- and FPGA-based architectures. The generated code is in C++ and VHDL respectively, and the tools used include formal models of computation and the XSLT language.
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LEITE, LEONARDO CARDARELLI. "MULTI-PLATFORM ELECTRONIC GAMES: UNDERSTANDING THE GAME PLATFORMS AND THEIR GAMES THROUGH A DESIGN ANALYSIS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2006. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=8600@1.
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CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICOGame Design é o processo de criação de um jogo, que engloba a definição de seu funcionamento, a descrição dos elementos que o compõe, bem como a transmissão destas informações à equipe que irá desenvolve- lo. O presente trabalho aborda o estudo do Game Design de jogos eletrônicos multi-plataforma, analisando criticamente como esta classe de jogos está sendo projetada. Por ser uma mídia em estágio de amadurecimento, a formação acadêmica necessária aos profissionais que atuam na área de jogos eletrônicos ainda não está claramente definida, e sua linguagem e potencialidades estão longe de serem enxergadas em sua totalidade. O exorbitante retorno financeiro da indústria a tornou conservadora e esta tendência está ofuscando a criação de um conteúdo significativo e exploratório. Com o objetivo de identificar e justificar as decisões de Game Design recorrentes em jogos eletrônicos multi-plataforma, questiona-se quais são as características presentes nestes jogos que influenciam a maneira em que são percebidos e jogados quando em diferentes plataformas e situações de uso, e quais as qualidades destas situações que devem ser relevadas durante o processo de sua criação e desenvolvimento. A pesquisa analisa o Game Design de quatro títulos, comparando suas diferentes versões de acordo com seus usos em contextos público, privado e móvel, adotando uma abordagem que compreende as percepções de um jogador e também as de um designer.
Game Design is the process of creating a game, which includes defining its functionality, describing its composing elements, as well as transmiting these informations to the development team. The current work approaches the study of the Game Design present on multi-platform electronic games, analysing how they´re being designed. Being a maturing medium, the academic profile needed for its professionals still isn´t clearly defined, and its language and potencials haven´t been fully explored. The industry´s exorbitant financial return has made it conservative, blinding the creation of meaningful content. With the objective of identifying and justifying the Game Design decisions recurrent on multi-platform electronic games, it is questioned what characteristics affect the way theses games are percepted and played when in different platforms and situations, and which qualities of these situations must be considered during the creative and development processes. The study analyses the Game Design of four titles, comparing their different versions according to their uses on public, private and mobile contexts, through a point-of-view that corresponds to both player and designer.
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Ravindran, Ramasamy. "An electronic biosensing platform." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/44774.
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The objective of this research was to develop the initial constituents of a highly scalable and label-free electronic biosensing platform. Current immunoassays are becoming increasingly incapable of taking advantage of the latest advances in disease biomarker identification, hindering their utility in the potential early-stage diagnosis and treatment of many diseases. This is due primarily to their inability to simultaneously detect large numbers of biomarkers. The platform presented here - termed the electronic microplate - embodies a number of qualities necessary for clinical and laboratory relevance as a next-generation biosensing tool. Silicon nanowire (SiNW) sensors were fabricated using a purely top-down process based on those used for non-planar integrated circuits on silicon-on-insulator wafers and characterized in both dry and in biologically relevant ambients. Canonical pH measurements validated the sensing capabilities of the initial SiNW test devices. A low density SiNW array with fluidic wells constituting isolated sensing sites was fabricated using this process and used to differentiate between both cancerous and healthy cells and to capture superparamagnetic particles from solution. Through-silicon vias were then incorporated to create a high density sensor array, which was also characterized in both dry and phosphate buffered saline ambients. The result is the foundation for a platform incorporating versatile label-free detection, high sensor densities, and a separation of the sensing and electronics layers. The electronic microplate described in this work is envisioned as the heart of a next-generation biosensing platform compatible with conventional clinical and laboratory workflows and one capable of fostering the realization of personalized medicine.
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Welch, C. S. "Servicing polar platforms using electric propulsion." Thesis, Cranfield University, 1992. http://hdl.handle.net/1826/3435.
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The future of space development has been examined in the context of the infrastructure necessary
support it. It is concluded that the selection of propulsion systems for in-orbit transportation requires
the development of general computer codes capable of simulating the use of a wide range of propulsion
systems on near-Earth missions.
It is also concluded that, even if limited infrastructural development occurs, polar orbiting
spacecraft will be an important feature of future space activities. Replacing current single-use polar
spacecraft with extended-life serviceable platforms is attractive. However, the very limited manned access
polar orbits in the mid-term future suggests that such platforms will only be possible if remote
telerobotic/autonomous servicing can be carried out. To this extent polar platforms are considered to
provide a useful driver and first testbed for the development of technologies designed to extend human
capability in those regimes where direct mediation is not possible.
Options for such remote servicing are examined, the concept of performing nodal transfers by
enhanced differential nodal drift is introduced and the application of electric propulsion to this discussed.
Low-thrust orbital manoeuvres are analyzed in this context and the conditions for optimum nodal transfer
defined. Particular service vehicle configurations are then defined against a projected infrastructure and
baseline polar platform constellation. A model for the service vehicle is defined and its performance
investigated using a number of electric propulsion systems. Simulations of transfer manoeuvres; have been
carried out and the effects and relative importance of the various orbit perturbations identified. It is
concluded that a service vehicle propelled by a Xenon ion system offers the capability required and two
final configurations are identified characterising different servicing mission upload schemes.
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Braud, Jeremy J. "Electronic attack platform placement optimization." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43881.
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Approved for public release; distribution is unlimitedAn increasingly dynamic battlefield requires increasingly faster software development. Cyber threats and Information Assurance certifications induce significant delays in software operational deployment designed to meet these emerging battlefield requirements. An alternative software development methodology for Department of Defense (DOD) acquisitions was proposed. The proposed software development methodology uses tailoring of commercial pre-approved applications such as Microsoft Office and Adobe currently available on most DOD networks. The application developed to test the validity of this approach is called the electronic attack platform placement optimization (EAPPO) algorithm. Given digital terrain data, a user inputted strike route, and an enemy order-of-battle (EOB) with their respective jammer techniques as inputs, the application output includes terrain and radar impacted threat range rings, aircraft strike routes, and an optimized flight path for the jamming platform (EA-18G). Successful development of the application validates the potential of using pre-approved, non-compiled software to develop military specific applications, a process that could significantly decrease software development time and cost for the DOD.
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Бєлих, Віталій Ростиславович. "Конструкторсько-технологічне забезпечення електричної платформи "odi" для людей з інвалідністю (комплексна магістерська дисертація)." Master's thesis, КПІ ім. Ігоря Сікорського, 2019. https://ela.kpi.ua/handle/123456789/31365.
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На основі аналізу стану питання у сфері транспортування людей з обмеженими можливостями, визначено, що в розвинутих країнах, існують розробки, що дозволяють покращити умови транспортування, у тому числі оснащених електричними приводами руху. Такі технології вже доступні у більшості країн широкому загалу людей з середніми та високим рівнем достатку. Впроцесі роботи було створено дизайн транспортного засобу, проаналізовано та спроектовано систему задньої підвіски електричної платформи. Для перевірки отриманих результатів, було проведено комп’ютерну симуляцію підвіски. Виготовлений у масштабі 1:4 макет ферми задньої підвіски, та макет дизайну електричної платформи.Based on the analysis of the state of the issue in the field of transportation of people with disabilities, it is determined that in developed countries there are developments that can improve transportation conditions, including those equipped with electric movement drives. Such technologies are already available in most countries to a wide range of people with medium and high incomes.In the process, a vehicle design was created, the rear suspension system of the electric platform was analyzed and designed. To verify the results, a computer simulation of the suspension was carried out.Made in a 1: 4 scale layout of the rear suspension truss, and the layout design of the electric platform.
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Van, Wyk John Foster. "Reusable software defined radio platform for micro-satellites." Thesis, Link to the online version, 2008. http://hdl.handle.net/10019/1346.
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Varzandeh, Navid. "New immobilizer concept based on Scania’s electrical platform." Thesis, Högskolan i Gävle, Avdelningen för elektronik, matematik och naturvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29180.
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Immobilizers are security systems that are set up and installed in modern vehicles in order to prevent thieves from starting the vehicles. The idea is that if any wrong keys are used to start the vehicle, the immobilizer detects the wrong key and start the immobilization procedure to stop the vehicle from turning on. The vehicle ignition key (key transponder or key fob) is one of the important components in an immobilizer system. An ignition key in an immobilizer system has a Radio Frequency Identification Device (RFID) chip inside it. This RFID chip holds a specific encryption algorithm and particular number of bits (encryption key bits) in itself. Using the encryption algorithm and encryption key bits, RFID chip inside the key authenticates and identifies itself as the right key to the immobilizer system in order to disable the immobilization procedure and start the vehicle. However, there are two ways thieves can disable the immobilization procedure and start the vehicle. The first approach is by discovering the specific encryption algorithm and key bits in the right key transponder (RFID) and using them to duplicate the correct RFID chip to disable the immobilization procedure and start the vehicle. The second approach is by exploiting the vulnerabilities and weaknesses in vehicle security network (CAN bus) to bypass the immobilizer and manipulate the immobilization procedure to start the vehicle. Scania vehicles are not using the most secure RFID and immobilization procedures, hence they are vulnerable to two vehicle theft approaches above. Therefore in this thesis project, I have done research and investigation on Scania vehicles key transponder (RFID) and analyzed their immobilization procedures in order to identify the roots and origins of vulnerabilities in Scania RFID and immobilization procedures. As the first result of this thesis work, I have found and proposed an RFID chip having one of the strongest encryption algorithms and proper number of encryption key bits for all Scania vehicles. As the second result of this thesis project, I have proposed and introduced two new individual immobilization procedures exclusively for Scania hybrid and electrical vehicles. Both proposed RFID (encryption algorithm) and immobilization procedures will be implemented in Scania vehicles in near future and will increase the security of Scania immobilizers significantly.
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Muffang, Louis. "SLAM Hardware & Software optimization for mobile platform integration." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-294332.
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This thesis work will focus on the optimization of a state-of-the-art monocular Visual-Inertial Odometry (VIO) algorithm for real-time application with limited resources on an embedded system. We will be using a multi-processor unit equipped with a Digital Signal Processor (DSP) to accelerate and offload tasks from the CPU. The goal is to reduce resource consumption without damaging the algorithm performance in speed and accuracy. To this end, we will first identify OpenVINS [1] as a suitable algorithm for this work and find the functions to optimize. When comparing the version of the optimized algorithm with the DSP and its original version, we achieved a similar performance accuracy with more than x1.5 power consumption saving on the CPU and more than x2 memory saving. This work finds its importance in every embedded system which requires a vision-based localization system running along with other CPU heavy tasks.Denna rapport beskriver optimeringen av en algoritm för icke-stereo Visual- Inertial Odometry (VIO), för realtidsapplikationer med begränsade resurser på inbäddade system. Vi använder en multi-processor enhet utrustad med Digital Signal Processor (DSP)) för att öka prestandan och avlasta huvudprocessorn (CPU:n), så att den kan användas för andra uppgifter parallellt. Målet är att minska resursförbrukningen utan att försämra hastighet eller noggrannhet hos algoritmen. Vi identifierar OpenVINS som en lämplig VIO-algoritm att optimera. Resultatet av studien är att vi lyckas minska minnesåtgången för CPU:n med en faktor 2, och energiförbrukningen med en faktor 1,5. Dessa resultat kan komma till användning i alla system som använder en VIO-algoritm parallellt med andra beräkningskrävande uppgifter.
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Janiaud, Noëlle. "Modélisation du système de puissance du véhicule électrique en régime transitoire en vue de l'optimisation de l'autonomie, des performances et des coûts associés." Phd thesis, Supélec, 2011. http://tel.archives-ouvertes.fr/tel-00660749.
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Dans le contexte automobile actuel de réduction des émissions de CO2, une réponse semble être apportée par le véhicule électrique. De nombreuses questions se posent alors, notamment concernant l'autonomie, d'autant plus que le nombre de consommateurs électriques dans les véhicules est en constante augmentation. Il est nécessaire de concevoir un groupe-motopropulseur électrique alliant autonomie et performances en considérant les contraintes de coût auxquelles est confronté tout constructeur.Concernant les outils de conception, très nombreux sont les constructeurs qui s'orientent vers d'autres solutions que la réalisation de prototypes en faisant appel à la simulation numérique dès le début du cycle en V pour optimiser leur prédimensionnement et assurer un gain non négligeable sur les délais et les coûts. Les travaux de thèse s'articulent ainsi autour de deux axes. Une première étape consiste à modéliser le réseau électrique automobile (chaîne de traction, système de confort thermique et réseau 14V) afin de simuler son fonctionnement en régime dynamique. L'aspect dynamique est important : des cartographies de pertes ne peuvent suffire si nous nous intéressons aux performances du véhicule en termes d'accélérations. D'autre part, l'autonomie est impactée de façon non négligeable par cet aspect dynamique.Dans une seconde étape, nous procéderons à l'optimisation du système de puissance. Les critères qui nous intéressent, autonomie et performances, sont antagonistes, ce qui donne lieu à la recherche de " meilleurs " compromis. Nous distinguons l'optimisation des lois de pilotage des organes de l'optimisation de l'architecture, les deux étant menées séquentiellement.
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Wang, Kevin I.-Kai. "Multi-agent based ambient intelligence platform." Thesis, University of Auckland, 2009. http://hdl.handle.net/2292/5212.
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The vision of Ambient Intelligence (AmI) can be realised through the integration of embedded technologies, distributed systems, middleware and human machine interfaces and many research efforts have been made to advance these technologies. However, the exclusiveness of these ambient intelligence technologies has reduced their practical values. In this thesis, a novel AmI platform is proposed to facilitate the integration and interoperability of various technologies in the process of developing AmI applications. The platform defines the overall software/hardware architecture and communication interfaces and provides a common base for development, operation and future adaptation of AmI applications. The proposed platform consists of four layers, the physical ubiquitous environment, middleware, multi-agent system (MAS) and application layer. The ubiquitous environment layer accommodates any type of embedded device network for interconnecting different sensors, actuators and computing devices. The middleware layer is built using an IP-based service discovery protocol, Universal Plug and Play (UPnP), which provides a unique communication interface for controlling and monitoring embedded devices. The MAS handles the core distributed and adaptive control functionality and communication with user interfaces. The application layer contains any type of user interface for different AmI applications. An XML-based content language is designed with an XML schema and seven XML messages. The content language standardises the way of interpreting contents of communication between different user interfaces and the MAS. Based on the proposed platform, a complete AmI application prototype called Distributed Embedded Intelligence Room (DEIR) has been implemented. Four different device networks, the SmartHouse network, IP network, Bluetooth and Zigbee network, have been integrated in DEIR to interconnect various embedded sensors and devices. The MAS is implemented using Java Agent DEvelopment framework (JADE). Four application specific agents, known as the UPnP control point agent, IP interface agent, fuzzy inference agent and decision tree agent, are designed and implemented. The UPnP control point agent provides MAS the ability to monitor and to control the underlying hardware devices through the UPnP middleware layer. The IP interface agent handles communication with user interfaces over socket connections. Fuzzy inference and decision tree agents are implemented to provide personalised learning and automated control capabilities. Three user interfaces, including a remote graphical user interface, a mobile PDA interface and a 3D virtual reality interface are implemented. Contents of communication between these user interfaces and the MAS are encoded using the proposed XML content language and transmitted over socket connections. The AmI application prototype, DEIR, has demonstrated the ability of integrating multiple device networks and multiple user interfaces, which is a vital feature for most AmI applications. Two case studies have been carried out to incorporate two adaptive learning and controlling algorithms, known as the adaptive online fuzzy inference system (AOFIS) and ID3 decision tree algorithm, in the MAS of DEIR. The results of case studies show that DEIR has the ability of incorporating multiple adaptive control algorithms as multiple agents. In addition, comparable or better offline learning accuracy and learning speed have been achieved by DEIR compared with other advanced adaptive control algorithms.Whole document restricted, but available by request, use the feedback form to request access.
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Pai, Chin-An, and 白欽安. "Platform Setup and Measurement of Electric Vehicle Gearbox." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/r4wqm5.
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碩士國立虎尾科技大學
機械設計工程研究所
102
The thesis aims to set up the gearbox on the experimental platform in order to understand the actual condition when the gearbox runs in the electric vehicle. The servo motor used as a power source controls the rotational speed of the motor, and then the V-belt pulley transmits kinetic energy to the gearbox input shaft so that the gearbox is just like in the actual operation in the electric vehicle. Because the vibration signals are generated during the operation of the gearbox, some instruments are used to measure the vibration signals when the gearbox is operated. In this study, the accelerometers, coated with beeswax and affixed to the shell of the gearbox shaft, are mainly used to measure the time-domain and frequency spectrum. The internal condition of the gearbox was showed and understood by the data. At the same time, after the stopwatch, set up on the gearbox output shaft, is entered the size of the wheel, the speed of the gearbox output will be showed. The data from the stopwatch displays the rotational speed and the transfer frequency of the shafts, as well as the GMF of the wheel. After the GMF of the wheel and transfer frequency of the shafts are counted by the servo motor during the operation, the data from the theory is compared to that from the accelerometers and the stopwatch in the study. During the operation of the gearbox, the noise meter is used to record the noise values to infer the amount of the different sound.
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Huang, Langyuan, and 黃莨淵. "Design and Implementation of Electric Vehicle Development Platform." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/85531860173582109922.
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碩士國立聯合大學
機械工程學系碩士班
99
The purpose of this research is to develop an electrical vehicle (EV) development platform that can verify the power flow and actual driving state easily. The motor of the vehicle drives a generator instead of driving a real car. The generator power can be fed to the grid or the power can be drawn from the grid to emulate the energy flow of a real car. The Matlab real-time control is employed to feedback the system status and generate the control signals for driving the motor, generator and grid-connected inverter of the proposed system. The advantages of the proposed system include high diversity (any road condition can be emulated), high flexibility (any car parameter can be changed), much cost-effectiveness (the drive energy can be regenerated) and high convenience (the test can be done in the laboratory). This thesis also develops a grid-connected inverter, through which the generator can feed to the grid with low distorted and three-phase balanced manner. A prototype system is designed and implemented; the effectiveness of the proposed methods is confirmed with some simulation and experimental results.
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Chen, Po-kun, and 陳柏錕. "Mobile Communication Platform of Electric Power Quality Monitoring System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/96774654210322412882.
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碩士國立高雄應用科技大學
電機工程系碩士班
94
This thesis proposes an FFT-EDTCS-CWT hybrid algorithm to effectively calculate harmonics and flicker, then a virtual instrumentation system and a mobile communication platform are built up to implement the remote monitoring of the power quality in harmonic and flicker indices. The platform uses GPRS as wireless communication medium, and the human-machine interface of the intelligent mobile phone is implemented by J2ME. The proposed mobile instrument system for remote power quality monitoring makes the supervisor of a power network conveniently acquire the real-time information about the power quality when he is not at the monitoring and control center. The functions of the instrumentation system include（1）real-time waveform and spectrum analysis and（2） long-term THD- and - trend monitoring. Besides, the general power components（such as voltage and frequency）instrum- entations can be also accomplished by the system. The built-up prototype of the system was tested inside and outside the laboratory. The test results show that the hybrid algorithm can obtain more accurate harmonic and flicker computations but spending less time, and the information of the virtual instrument at the server side can be correctly displayed on the mobile phone through the developed communication platform. The cost and the delay of the GPRS wireless communication validate the availability and the feasibility of the mobile communication platform for remote power quality monitoring.
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Hou, Kuan-Chu, and 侯冠竹. "Monitoring of Electric Power Quality on A Smartphone Platform." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/04931994688379464696.
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碩士國立成功大學
電機工程學系碩博士班
93
In this thesis, the electric power quality monitoring and analysis are constructed and performed on the Smartphone platform. Because Smartphone-based cellular phone comes with high portability along with network communication capability, this study has focused on the utilization of such merits for the development of power quality monitoring. By use of embedded programming for the development of power system harmonics, three-phase unbalance, voltage flickers, voltage sags, and voltage swells are all monitored. This completed product would facilitate the monitoring work, while the graphic user interface further help user for the supervision of electric power quality at the same time. In order to validate the effectiveness of the method, this prototype has been tested through the simulated scenarios of harmonics, unbalances, voltage flickers, voltage sags, and voltage swells. Test results help support the feasibility of the method.
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Motaung, Mokete Isaac. "Modelling and control of an electric wheelchair virtual reality platform." 2014. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001341.
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M. Tech. Electrical Engineering.Discusses how to develop the kinematic and dynamic model and the controller for the 2-DOf motion platform used in an augmented reality environment for wheelchair driving. This comes as a motivation to help to train disabled and elderly people to drive wheelchairs.. With accurate inverse dynamic model, it is possible to achieve high performance control algorithms of robots and direct dynamic model is required for their simulation. The other part of this research was to model and control the roller for the feedback of the wheelchair wheels.
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Hsu, Hao-Han, and 許顥瀚. "System Integration and Evaluation of an Electric Bus Simulation Platform." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/ua929c.
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碩士國立臺灣科技大學
機械工程系
107
Due to the cost of electric bus battery system and the request of the battery efficiency and life are high, the proportion of using Battery electric vehicle is still low, moreover, there are still many technique problems that may influence battery efficiency are waiting to be solved so battery system verification and evaluation are important to electric bus design and development. In addition, the evaluation of the charge and discharge performance of the battery must be carried out in conjunction with the actual operation of the vehicle. In order to save the cost of vehicle testing, this plan is to use TruckSim to build an electric bus dynamic model and simulate by Hardware-in-the-loop(HIL) method. And build the motor model to drive the entire vehicle by using LabVIEW, then connect to real battery charging and discharging system through the whole vehicle model to complete the HIL system. Through the software setting, this platform can simulate the dynamic behavior of the electric bus in different driving situations, and can test the battery reaction by real time charge and discharge. Simultaneously, we can communicate with the battery cabinet to know the battery state of charge, voltage, current, temperature and other battery parameters. During the simulation, users can also view real-time maps, street view information.
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Onyango, Stevine Obura. "Dynamic modelling and control of a wheeled mobile platform." 2010. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000503.
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M. Tech. Electrical Engineering.Wheeled Mobile Platforms have considerable acceptance and dominance in the field of transportation. While most of these platforms have been designed for able users, very few special designs are available for the physically disabled persons. With increasing numbers of disabled peoples around the world, accommodative and safer displacement means are called for. A normal wheelchair platform with two front castor wheel and two independently driven rear wheels is therefore considered in this study for modelling and control. Based on the nature of persons using wheelchairs, better and much easy to control wheelchair platforms are necessitated. To achieve such objective, this research is focused on two main threads: dynamic modelling and control. In modelling, the aim is to present a dynamic model of wheelchair platform that takes into account slipping parameters and frictional/traction forces experienced on motion. It also intends to account for the effects of gravitational forces that would be experienced by the wheelchair and its effect on the platforms during uphill and downhill movements. Lagrange formalism is utilised in the design of this dynamic model. In control, the objective is to ensure that the platform tracks the reference linear velocity and the reference angular orientation as desired. With such control commands, a simple access device may be employed to ensure that people with severe disability also have a chance of controlling the wheelchair. Since no zero dynamics arise with linear velocity and angular orientation as the platforms outputs, standard input-output feedback linearisation is considered and applied in the linearisation of the model and in the development of the control law. Successfully simulated results demonstrating the performance of the proposed dynamic model and control law are presented for verification. The entire dynamic model and the controller are simulated in a software tool MATLAB and SIMULINK.
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Su, Yun-Ning, and 蘇韵甯. "Study on the wireless control system for electric apparatus withWeb platform." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/59880828231765866217.
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碩士國立高雄應用科技大學
電子工程系
98
The purpose of the home security system for the primary purpose of life and in the workplace, supplemented by combining the convenience of the Internet, through phone or workplace computers from the network at any time on the monitor at home or in the workplace electrical equipment,We can view at home or the workplace have not closed, or any unusual form of electrical, electronic equipment when the event of overload, the system will cut off the power and send an alert message to a user's mobile phone to alarm function for immediate response. System installation, simple installation for the purpose of building a wireless control system, will be encoded through a wireless module connected to the controlled electrical device, do not undermine the decor is simple and convenient to form a wireless control network, then the system host connected to the Internet can constitute a Web-based platform and fitted with security features, so that a single electrical equipment can be done appropriately protected and use wireless module to control home appliances conditions, dispense with the complex wiring convenience, this design concept the system cheap, simple and easy installation into the purpose of erecting ... and so universal, so that every household or workplace can be DIY easily reached by the effectiveness of life and energy saving.
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li, Jiun-yi, and 李俊易. "Dynamic Simulation and Analysis of Six-axis Electric Servo Cylinder Platform." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/65496631140757912072.
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碩士雲林科技大學
機械工程系碩士班
98
Six-axis platforms are a type of parallel mechanism which are constructed with six struts between the base and the platform. The lengths of the six struts are changed by their servo-electric cylinder . Using this kind of closed loop mechanism for designing a six-DOF motion system has several advantages, such as possible higher precision, stiffness, and more simpler structure. The thesis is mainly procedure in designing a new type of six-axis platform. It investigates about the analysis of kinematic, workspace, and dynamic of the six-axis platform. Then we compare the simulation of ADAMS and the theory of MATLAB to build a complete design procedure and to prove the accuracy by the actual platform. In the kinematics, we calculate the forward kinematics and inverse kinematics. In the working space, we have calculated with platform specifications to find the electric servo cylinder elongation. Finally, we calculate the maximum force required for platform.from this research, we can finish the design and manufacture of the six-axis platform more fast and efficient to cut down the cost.
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Kun-WeiLee and 李昆蔚. "Study on Weaving-Type Contactless Inductive Charging Platform for Electric Vehicles." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/71538449610225740263.
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Jhou, Wei-Liang, and 周維亮. "Developing a Control and Motion Cue for Electric Stewart Motion Platform." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/yr57b2.
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碩士國立臺北科技大學
機電整合研究所
99
This paper aims to develop an interaction platform system of Dynamic Simulator which could perform the dynamic data of Virtual Reality through the Electric Stewart Motion Platform. The system includes four parts: virtual reality, internet transfer, motion cue, and motion control. The system structure, uses the physical model of Virtual Reality software to calculate the acceleration and angular velocity motion, and sent the data to the motion cue module to calculate the displacements and attitudes. The main calculation of motion cue adopts the Classical Washout Filter Algorithm, and the motion control makes use of inverse kinematics to calculate the extension of each linkages. The platform controller in this research is a serial servo motor control card which is developed by ADLINK Technology, and compatible with the MITSUBISHI servo drive, MELSERVO-J2-Super 350B, and the servo motor, HC-SFS352. Moreover, the SSCNET serial servo technology is applied as the hardware control system of the Stewart Platform. After the dynamic response experiment, the bandwidth of Electric Stewart Motion Platform was found not as high as expected. Therefore, to improve the drawback of the system, a DSP controller has been explored and tested with a single actuator.
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Chen, Meng-Wei, and 陳孟偉. "Development of IOT Management and Service Platform Technique for Electric Scooter." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/83718172773148811233.
Full textAbstract:
碩士元智大學
電機工程學系
104
With the rising awareness of environmental protection, Taipei City pursues a bicycle rental service called YouBike to enhance short-distant travel facilities and create a green environment for the public. However, a bicycle may not be available in a popular site or simply malfunction of the rental system could cause a lot of troubles. An internet of things (IOT) concept with cloud service that connects with am electric-scooter rental system is born for the public who use electric-scooter for a short-distant travel. But people don’t familiar with electric-scooters so that they will worry about running out of battery power during the riding. For an IOT concept with cloud service that connects with and electric-scooter rental system, the system utilizes the powerful ICT ability to enhance the function of roadside assistance and user notification. The aim of this research is to develop an electric-scooter information service platform with the function of automatic rental service and smart charging system. In this system, users could rent an electric scooter by using any wireless smart devices and start up electric scooters via RFID card. With the WiFi and GPRS connection, all electric scooters can be real-time monitored by a smart device. Moreover, the real-time monitoring of scooters, charging station, the data of battery charging time and charging ratio are also being collected and analyzed in the cloud platform. The conversion mechanism from the residual power to available driving distances of the rental scooter is useful for users to choose their suitable scooters, so that they don’t have to worry about running out of battery power during the riding. In addition, the system utilizes the powerful ICT ability to enhance the function of roadside assistance and user notification. Real-time data transmission not only provides surveillance and immediate roadside assistance for electric-scooters users, but also makes multi rental pricing based on usage behavior of users, such as the power consumption and travel distant.
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Ruei-YuanChen and 陳睿媛. "Analysis and Implementation of Contactless Power Transfer Platform for Electric Vehicles." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/77908818697731409288.
Full textAbstract:
碩士國立成功大學
電機工程學系
102
This thesis proposes a contactless power transfer platform for electric vehicles with characteristics analysis, where both one-to-one power transfer and three-to-one power transfer for on-board portable electronic products are included. In view of inconvenience resulted from the scenario when the plug connection is the sole way of providing the power for most vehicles, the thesis suggests to utilize the wireless power transfer along with charging tracks, anticipating facilitating the dynamic charging of electric vehicles. This study begins with the investigation of contactless power transfer, which is followed by the selection of compensation structure. Based on the power demand and the distance to transfer the power, a flowchart of induction coil design is developed. Through the validation of one-to-one power transfer, the method is further extended as a three-to-one power transfer prototype. The voltage of each module is detected in order to formulate the relationships between charging tracks and position of vehicle. By controlling the duty cycle of each power transistor in the converter, the charging power can be adjusted flexibly. This proposed platform has been theoretically analysed and experimentally tested. Experimental results support the potentials and reference values of this proposed circuit for the application investigated.
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李鴻駿. "Systems modeling and performance improvement of test platform for electric vehicles." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/96393195502790932559.
Full textAbstract:
碩士國立臺灣師範大學
工業教育學系
102
This thesis aims at modeling and improving the performance of an electric vehicle power testing system. To reach the high accuracy and fast response of the system, this study firstly established a off-line software system (Model In The Loop，MIL) on the Matlab/Simulink platform with real-plant parameter input. By comparing the off-line/on-line performance under the baseline PI control case, we ensured that the off-line model can represent the HIL(Hardware-In-the-Loop，HIL) platform. Next, a global search algorithm derived the optimal PI control parameters by for-loop search. The set of PI values them was employed to the on-line platform to enhance the vehicle speed tracking accuracy. For the bandwidth and delay analysis of the data communication, through the precise offline model, the benefit can be analyzed. Results show that this research successfully evaluates the vehicle speed tracking accuracy and performance improvement by the off-line simulation of the dynamometer test platform. For the control parameter tuning, the average vehicle speed error between the off-line and on-line platform was 0.1 km/h. By using the global search algorithm on the off-line simulation, the vehicle speed tracking for the platform can be predicted to be improved by 33+%. The same PI can improve 38 % of the vehicle tracking error for the on-line platform. This research method and the parameter search algorithm truly help for the preliminary study of the performance enhancement and improvement of the testing platform.
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Chan, Li-Te, and 詹立得. "Electric Power Quality Monitoring Using Internet Platform-Based Portable Mobile Devices." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/46702344708865110818.
Full textAbstract:
碩士國立成功大學
電機工程學系碩博士班
94
Following the increased use of nonlinear loads connected in the modern electric power system, the quality of supplying power is seen degraded. Therefore, it is critically important to measure the electric power data and perform the analysis such that the polluted sources can be earlier located. In view of such importance, this thesis has proposed an integrated approach to implement a portable electric power quality analysis system, where the .NET platform was mainly utilized for the cross-platform considerations. In the propose method, thanks to the high portability of Smartphone and wireless communication, the monitoring data can be easy to deliver to the client side where the user interface was also built up. Then, at the server side, it was responsible for the electric power quality-related computation. In order to validate the feasibility of the method, several disturbances were also simulated and tested via the proposed system. Test results helped reveal the feasibility of the method for the application considered, which would be also beneficial for electric power quality monitoring study.
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"A decimated electronic cochlea on a reconfigurable platform." 2007. http://library.cuhk.edu.hk/record=b5893109.
Full textAbstract:
Wong Chun Kit.Thesis submitted in: October 2006.
Thesis (M.Phil.)--Chinese University of Hong Kong, 2007.
Includes bibliographical references (leaves 73-76).
Abstracts in English and Chinese.
Chapter 1 --- Introduction --- p.1
Chapter 1.1 --- Background and Motivation --- p.1
Chapter 1.2 --- Objectives --- p.4
Chapter 1.3 --- Contributions --- p.4
Chapter 1.4 --- Thesis Outline --- p.5
Chapter 2 --- Digital Signal Processing --- p.6
Chapter 2.1 --- Introduction --- p.6
Chapter 2.2 --- Discrete-time Signals and Systems --- p.7
Chapter 2.2.1 --- Discrete-time Signals --- p.7
Chapter 2.2.2 --- Discrete-time Signal Processing Systems --- p.9
Chapter 2.2.3 --- Linear Time-Invariant (LTI) Systems --- p.10
Chapter 2.3 --- Finite Impulse Response (FIR) Filters --- p.13
Chapter 2.3.1 --- Introduction --- p.13
Chapter 2.3.2 --- Windowing FIR Filter Design Method --- p.15
Chapter 2.4 --- Infinite Impulse Response (IIR) Filters --- p.17
Chapter 2.4.1 --- Introduction --- p.17
Chapter 2.4.2 --- Bilinear Transform IIR Filter Design Method --- p.18
Chapter 2.4.3 --- Spectral Transformations of IIR Filters --- p.22
Chapter 2.5 --- Comparison on FIR and IIR Filters --- p.25
Chapter 2.6 --- Digital Signal Resampling --- p.26
Chapter 2.6.1 --- Introduction --- p.26
Chapter 2.6.2 --- Resampling by Decimation --- p.26
Chapter 2.6.3 --- Resampling by Interpolation --- p.28
Chapter 2.6.4 --- Resampling by a Rational Factor --- p.29
Chapter 2.7 --- Introduction to Dual Fixed-point (DFX) Representation --- p.30
Chapter 2.8 --- Summary --- p.33
Chapter 3 --- Lyon and Mead's Cochlea Model --- p.34
Chapter 3.1 --- Introduction --- p.34
Chapter 3.2 --- Digital Cochlea Model: Cascaded IIR Filters --- p.37
Chapter 3.2.1 --- Introduction --- p.37
Chapter 3.2.2 --- Bandwidth and Centre frequencies --- p.38
Chapter 3.2.3 --- Zeros and Poles --- p.39
Chapter 3.3 --- Modifications for Decimated Cochlea Model --- p.41
Chapter 3.3.1 --- Introduction --- p.41
Chapter 3.3.2 --- Aliasing Avoidance --- p.42
Chapter 3.3.3 --- Coefficient Modification after Decimation --- p.43
Chapter 3.4 --- Summary --- p.47
Chapter 4 --- System Architecture --- p.48
Chapter 4.1 --- Introduction --- p.48
Chapter 4.2 --- Hardware Platform and CAD Tools --- p.48
Chapter 4.3 --- Sequential Processing Electronic Cochlea --- p.51
Chapter 4.3.1 --- Pipelining - An Interleaving Scheme --- p.53
Chapter 4.3.2 --- Decimation in Sequential Processing Electronic Cochlea . --- p.54
Chapter 4.3.3 --- Multiple Sequential Cores --- p.55
Chapter 4.3.4 --- Architecture of the DFX Filter Computation Core --- p.55
Chapter 4.4 --- Summary --- p.60
Chapter 5 --- Experimental Results --- p.61
Chapter 5.1 --- Introduction --- p.61
Chapter 5.2 --- Testing Environment --- p.61
Chapter 5.3 --- Performance of the Sequential Electronic Cochlea --- p.63
Chapter 5.3.1 --- Comparisons --- p.63
Chapter 5.4 --- Summary --- p.69
Chapter 6 --- Conclusions --- p.70
Chapter 6.1 --- Future Work --- p.72
Bibliography --- p.73
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Moshirvaziri, Andishe. "Lithium-Ion Battery Modeling for Electric Vehicles and Regenerative Cell Testing Platform." Thesis, 2013. http://hdl.handle.net/1807/43262.
Full textAbstract:
Electric Vehicles (EVs) have gained acceptance as low or zero emission means of transportation. This thesis deals with the design of a battery cell testing platform and Lithium-Ion (Li-Ion) battery modeling for EVs. A novel regenerative cell testing platform is developed for cell cycling applications. A 300 W - 5 V cell cycler consisting of a buck and a boost converter is designed.
Furthermore, a novel battery modeling approach is proposed to accurately predict the battery performance by dynamically updating the model parameters based on the battery temperature and State of Charge (SOC). The comparison between the experimental and the model simulation results of an automotive cell under real-world drive-cycle illustrates 96.5% accuracy of the model. In addition, the model can be utilized to assess the long-term impact of battery impedance on performance of EVs under real-world drive-cycles.
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Hsu, Chia-Hu, and 許家瑚. "Implementation of Electric 6-DOF Motion Platform Using Functional Neural Fuzzy Controllers." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/49711372810277412172.
Full textAbstract:
碩士朝陽科技大學
資訊工程系碩士班
98
The main research aim of this thesis is to design the system architecture of the Stewart Platform in order to make the related operational processes being more efficient and convenient. As the result, we developed a graphical user interface for the goal of effective adjustment of corresponding control parameters, which is implemented by I/O signal cards to transmit the data files between the control console and the platform. In other words, within the limited working space, we can control the motion cueing of the platform arbitrarily and immediately. In this thesis, we applied the inverse kinematics to control our 6-DOF motion platform, since the calculation of the forward kinematics is highly depended; it is not possible to have the only solution. One other important reason of choosing the inverse kinematics is that there is not any limitation for the inverse kinematics, one can conduct the relations between the upper and lower platforms and grant the only solution, if its general procedure is followed. The Functional Neural Fuzzy Controller (FNFC) was developed by our Lab, while the corresponding algorithms consist of the structure and parameter learning processes. The process of structure learning is based on the entropy measurement to decide whether there should be added one more fuzzy rule, and the backpropagation method is used in the parameter learning to adjust all free parameters of the neural network. Comparing to the existing PID controllers for evaluation of motion platforms, our approach could provide better performance, reduce the corresponding complexity, and minimize the error between actual length and commanded length of the platform’s actuators. In order to maximize the working space within the realistic limited range and to simulate the large scale motions of the relative acceleration and angular velocity and to make experienced pilots feeling more realistically under their operations, we applied the algorithm of the washout filter to immediately and smoothly perform each commanded motion cues on our platform. Lastly, we compared our proposed approach with other methods to prove the effectiveness of our neural architecture and the corresponding algorithms.
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"Designing a Software Platform for Evaluating Cyber-Attacks on The Electric PowerGrid." Master's thesis, 2019. http://hdl.handle.net/2286/R.I.53801.
Full textAbstract:
abstract: Energy management system (EMS) is at the heart of the operation and control of a modern electrical grid. Because of economic, safety, and security reasons, access to industrial grade EMS and real-world power system data is extremely limited. Therefore, the ability to simulate an EMS is invaluable in researching the EMS in normal and anomalous operating conditions.
I first lay the groundwork for a basic EMS loop simulation in modern power grids and review a class of cybersecurity threats called false data injection (FDI) attacks. Then I propose a software architecture as the basis of software simulation of the EMS loop and explain an actual software platform built using the proposed architecture. I also explain in detail the power analysis libraries used for building the platform with examples and illustrations from the implemented application. Finally, I will use the platform to simulate FDI attacks on two synthetic power system test cases and analyze and visualize the consequences using the capabilities built into the platform.Dissertation/Thesis
Masters Thesis Computer Science 2019
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Wu, Jia-Wei, and 吳家維. "Development of Household Electric Monitoring Platform Based on MiWi Wireless Network Protocol." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/35qsau.
Full textAbstract:
碩士國立勤益科技大學
電機工程系
106
In 2013, Germany first proposed the concept of Industry 4.0 the concept of Industry 4.0, which emphasizes the application and integration of technologies such as Internet of things, cloud, big data, and communication protocols. Many countries have learned, they have also invested in research and application of related technologies. In recent years, with the popularization of smart devices, such as smart phones and tablets, and users can connect to the Internet through mobile networks using Wi-Fi or others communication protocols. Just touch the web pages or APP interfaces to achieve remotely monitor and control for desired objects. The purpose of this thesis is to establish a home-based electrical monitoring platform, the electrical monitoring platform consists of a master device and N controlled end devices. The master device established a web-based operation interface using Responsive Web Design (RWD) scheme. When the master device connects to the intranet or internet, user can login to the web-based interface and push the desired button, master device would transceive respective control signal to end device by MiWi wireless protocols and achieve the desired operation. In summarize, this developed home-based electrical control platform has achieved the following functions. 1. Use embedded system architecture design with PIC microcontroller kernel, effectively reduce the size of the platform and achieve lower cost. 2. The platform adds a wireless LAN to transceive the control signal and alleviate the wiring problem. 3. All settings and control operations can be finished by any device connected to the internet/intranet network, such as tablet, smart phones, desktops, laptops, etc.), providing operational convenience. 4. The web-based interface space is embedded in microcontroller's memory, using Responsive Web Design scheme. It can automatically adjust the display and resolution, the use is more convenient and easy to maintain. 5. Every end device has an unique EUI (Extended Organizationally Unique Identifier) address, which is safe and confidential. 6. Easy to modify the platform control signal mode, in addition to the basic ON / OFF control, can be flexibly set to provide controllable power or DC trigger signal to facilitate the integration with peripherals. 7. The web-based operation interface integrating with the electrical equipment, the operation is intuitive and friendly. Moreover, it is facilitated the management of various electrical equipment, and the operating range is not limited to the near area.
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HUANG, TIEN-CHENG, and 黃天正. "Development and Design of an Intelligent Management Platform for Electric-Vehicle-Battery." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/97801823481506936592.
Full textAbstract:
碩士國防大學理工學院
電子工程碩士班
104
Li-ion batteries are widely used for Electric Vehicles（EV） as the energy source. However, existing battery charging stations possess some shortcomings, such as lacking of various battery charging modes and without considering the temperature rising during battery charging period. These may be barriers for promoting the use of EV. To solve the problems above mentioned, this paper develops an EV-battery charging management platform with interaction ability. First of all, a prototype of programmable EV-battery charging station with internet-connection ability is built. In addition, we design a Web service-based battery management platform and five functional components are developed to provide interaction capability, such as charging modes recommendation, abnormal situation alert, real-time state display, historical data query, and remote data storage. Legitimate users can operate these functions through Internet by using a browser. Specifically, in the function of charging modes recommendation, we design four modes to fulfill various requirement of users, including charge to full, time-limited charge, cost-limited charge and force-charge. Finally, we built a prototype of an EV-battery charging management platform with interaction ability in NCSIST to test the designed functional components. The test results show that this prototype can satisfy the requirement of various battery charging modes and battery charging safety.
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Weng, Chong-bo, and 翁崇博. "Dynamic Simulation and Stress Analysis of Six-axis Electric Servo Cylinder Platform." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/40473271288335974854.
Full textAbstract:
碩士國立雲林科技大學
機械工程系碩士班
99
Six-axis platform is a closed-loop mechanism of linkage-type, therefore has characteristics of high stiffness and high freedom. It has advantages of high precision and high efficiency when combines with the servo electric cylinder. The main structure of six-axis electric servo cylinder platform can be distinguished into three part of movable platform,base and six servo electric cylinder. This research investigates the condition of operation for the six-axis platform by kinematics, dynamics and dynamic analysis software ADAMS. Next, using the FEM software ANSYS to analyze the stress for each component, and investigating the strength and life for platform. Through this research, hoping to have some contributions for the design of six-axis platform.
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Lee, San, and 李三. "Design and Implementation of Cerebellar Model Articulation Controller for Electric Motion Platform." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/23285021574611126819.
Full textAbstract:
碩士國立交通大學
電資學院學程碩士班
91
In this study, we have designed an electric motion platform, and developed an adaptive cerebellar model articulation controller to solve the nonlinear and complex dynamics of electric motion platform. Compare with oil motion platform which has existed in our laboratory, the electric motion platform has the advantages of the low noise and the low pollution (no leakage of oil problem). The electric motion platform even just need the power of 110v to drive the servo motor to turn run, and makes motion platform actions. Considering these advantages, the overseas companies which makes motion platform, is beginning to develop and produce the electric motion platform to replace the oil motion platform. Moreover, the locally and overseas be interrelated research unit as regards the needs of motion platform force in electric motion platform. In this study, two research have been discussed. One is the mechanism hardware equipment, and the other is the control algorithm design. For the mechanism hardware equipment, our study have completed the electric motion platform mechanism design﹑process and constructed of driving system. For the control algorithm design, since the dynamics of the electric motion platform is nonlinear and complex, the conventional control design technique is difficult to design. To solve this problem, a structure easy, fast learning property, and model-free design algorithm which is referenced as adaptive cerebellar model articulation controller system is developed. Finally, experimental results show that the adaptive cerebellar model articulation controller can achieve favorable tracking with unknown the dynamic model of the motion platform.
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Zhou, Weiqian (Viking). "Platform for ergonomic steering methods investigation of "Segway-style" balancing scooters." 2008. http://adt.waikato.ac.nz/public/adt-uow20080130.140133/index.html.
Full text
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Andersen, Kevin. "Development of a time-domain modeling platform for hybrid marine propulsion systems." Thesis, 2016. http://hdl.handle.net/1828/7245.
Full textAbstract:
This thesis develops a time-domain integrated modeling approach for design of hybrid-electric marine propulsion systems that enables co-simulation of powertrain dynamics along with ship hydrodynamics. This work illustrates the model-based design and analysis methodology by performing a case study for an EV conversion of a short-cross ferry using the BC Ferries’ M.V. Klitsa. A data acquisition study was performed to establish the typical mission cycle of the ship for its crossing route between Brentwood Bay and Mill Bay, across the Saanich Inlet near Victoria, BC Canada. The data provided by the data acquisition study serves as the primary means of validation for the model’s ability to accurately predict powertrain loads over the vessel’s standard crossing. This functionality enables model-based powertrain and propulsion system design optimization through simulation to intelligently deploy hybrid-electric propulsion architectures.
The ship dynamics model is developed using a Newton-Euler approach which incorporates hydrodynamic coefficient data produced by potential flow solvers. The radiation forces resulting from vessel motion are fit to continuous time-domain transfer functions for computational efficiency. The ship resistance drag matrix is parameterized using results from uRANS CFD studies that span the operating range of the vessel. A model of the existing well-mounted azimuthing propeller is developed to predict thrust production and mechanical torque for pseudo-second quadrant operation to represent all operating conditions seen in real operation. The propeller model is parameterized from the results of a series of uRANS CFD on the propeller geometry. A full battery-electric powertrain model is produced to study the accuracy of the model in predicting the drivetrain loads, as well as assessing the technological feasibility of an EV conversion for this particular vessel. A dual-polarization equivalent circuit model is created for a large-scale LTO battery pack. An average value model with MTPA control and dynamics loss model is developed for a commercially available electric drive system. Power loss models were developed for required converter topologies for computational efficiency. The model results for load prediction are compared to data acquired, and results indicate that the approach is effective for enabling the study of various powertrain architecture alternatives.Graduate
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Basiri, Mohammad. "Development of a Hardware-in-the-loop Platform for Hybrid and Electric Vehicles." Thesis, 2012. http://hdl.handle.net/10012/7220.
Full textAbstract:
On a larger scope, improving the hybrid electric vehicles (HEVs) and electric vehicles (EVs) could address the public concern on climate changes and environmental issues. While ongoing research at the University of Waterloo targets improving HEVs and EVs through studying their various components, there was a pressing need to develop setups or tools to assist in the progress of this research. Hence, the primary problem at hand was the time-consuming and costly procedure of developing individual experimental setups/tools for the proposed experiments.
The approach taken to solve these interconnected challenges was the design and development of a modular test bench capable of running various hardware-in-the-loop (HIL) studies on HEV powertrain components. The HIL approach was adopted in order to increase the accuracy of computer-generated simulations through the use of physical components in combination with software simulations. MATLAB Simulink software was employed to create the models and programs, which were then downloaded to dSPACE, a device employed to control the various components of the test bench. The scope of this project expanded not only to accommodate specific experimental setups, such as the HWFET drive cycle test, but also to consider modularity requirements that would address unforeseen circumstances and experimental needs. Meeting the modularity requirements would greatly reduce the cost and time needed for running the experiments.
As a result of this project, a test bench was developed with four major components: a modular area (for attaching various physical components that comprise the proposed experiment’s setup), a control panel, a dSPACE, and the electrical energy supply and load. Through running various experiments, numerous components of the test bench were characterized. The developed test bench is capable of accommodating various experimental setups as well as producing relevant data for further analysis. The implications of this project are that the ongoing research on HEVs at the University of Waterloo can now employ the test bench to run proposed experiments more effectively in order to obtain more accurate data.