Dissertationen: „Matlab Simulink Model“

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Havlát, Petr. „Simulátor mobilních robotů v prostředí Matlab/Simulink“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217850.

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The main goal is the programming scene MATLAB/Simulink creation of graphic user interface (GUI), which allows the simulation of mobile robots movement. The work covers two types of these robots – first one is the robot with differentially controlled truck and second one auto robot (car-like robot). As a part of this draft GUI, there are also possibilities of showing all trajectory or only actual position, selection of step after which the robot can delineate and possibility of layout between the positions by using the button back and forwards.

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Glos, Jan. „Využití modelů v jazyce Modelica v prostředí Matlab-Simulink“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221266.

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This thesis solves the use of Modelica models in Matlab/Simulink enviroment. The first part is focused on Modelica language and Functional Mock-up Interface, a standard way for model exchange and co-simulation of dynamic models, which is supported by most Modelica oriented tools. Based on this standard FMUtoolbox was created and it provides the ability to import and simulate models exported as Functional Mock-up Unit. The tool provides a Simulink block, graphical and command-line interface.

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Sivaraman, Gokul. „Development of PMSM and drivetrain models in MATLAB/Simulink for Model Based Design“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301027.

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When developing three-phase drives for Electric Vehicles (EVs), it is essential to verify the controller design. This will help in understanding how fast and accurately the torque of the motor can be controlled. In order to do this, it is always better to test the controller using the software version of the motor or vehicle drivetrain than using actual hardware as it could lead to component damage when replicating extreme physical behavior. In this thesis, plant modelling of Permanent Magnet Synchronous Machine (PMSM) and vehicle drivetrain in MATLAB/Simulink for Model Based Design (MBD) is presented. MBD is an effective method for controller design that, if adopted can lead to cost savings of 25%-30% and time savings of 35%-40% (according to a global study by Altran Technologies, the chair of software and systems engineering and the chair of Information Management of the University of Technology in Munich) [1]. The PMSM plant models take effects like magnetic saturation, cross- coupling, spatial harmonics and temperature into account. Two PMSM models in d-q frame based on flux and inductance principles were implemented. Flux, torque maps from Finite Element Analysis (FEA) and apparent inductance from datasheets were used as inputs to the flux- and inductance-based models, respectively. The FEA of PMSM was done using COMSOL Multiphysics. The PMSM model results were compared with corresponding FEA simulated results for verification. A comparison of these PMSM models with conventional low fidelity models has also been done to highlight the impact of inclusion of temperature and spatial harmonics. These motor models can be combined with an inverter plant model and a controller can be developed for the complete model. Low frequency oscillations of drivetrain in EVs lead to vibrations which can cause discomfort and torsional stresses. In order to control these oscillations, an active oscillation damping controller can be implemented. For implementation of this control, a three-mass mechanical plant model of drivetrain with an ABS (Anti-lock Braking System) wheel speed sensor has been developed in this thesis. Analysis of the model transfer function to obtain the pole zero maps was performed. This was used to observe and verify presence of low frequency oscillations in the drivetrain. In order to include the effects of ABS wheel speed sensor and CAN communication, a model was developed for the sensor.
Testning av regulatorernas inställningar med hänsyn till snabbhet och noggrannhet i momentreglering är avgörande i trefasiga drivsystem för elektriska fordon. Oftast är det bättre att simulera i stället för att utföra experimentella tester där komponenter kan skadas på grund av fysisk stress. Detta kallas för Model Based Design (MBD). MBD är an effektiv metod för utformningen av styrningen som kan leda till kostnadsbesparingar på 25%-30% och tidsbesparingar på 35%-40% enligt en studie från Altran Technologies i samarbete med Tekniska universitet i München, TUM. Detta examensarbete behandlar en modell för en synkronmaskin med permanentmagneter (PMSM) samt en modell för drivlinan utvecklad i Matlab/Simulink för MBD. PMSMs modellen inkluderar magnetisk mättnad och tvärkoppling, MMF övervågor och temperatur. Två PMSM modeller har utvecklats. Den första baseras på magnetiskt flöde som erhålls från finita element beräkningar i COMSOL Multiphysics medan den andra bygger på induktanser givna från datablad. En jämförelse av dessa PMSM-modeller med konventionella low fidelity-modeller har också gjorts för att illustrera påverkan temperaturberoende och MMF övervågor. Modellerna kan kombineras med en växelriktarmodell för att utveckla en hel styrenhet. Lågfrekventa oscillationer i drivlinan leder till vibrationer som kan orsaka vridspänningar och försämra komforten i elfordonet. En aktiv dämpningsregulator kan implementeras för att kontrollera spänningarna men en mekanisk drivlinemodell med tre massor och en ABS (anti-lock braking system) hastighetssensor behövs. Den mekaniska modellen har implementerats och analyserats även beaktande en modell för en CAN kommunikationskanal. Oscillationer med låg frekvens kunde observeras i modellen.

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Soltani, Saeed. „Dynamic Architectural Simulation Model of YellowCar in MATLAB/Simulink Using AUTOSAR System“. Master's thesis, Universitätsbibliothek Chemnitz, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:ch1-qucosa-212596.

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The YellowCar at the professorship of computer engineering of TU Chemnitz is a demonstration vehicle. The car is equipped with multiple networked Electronic Control Unit (ECU)s. There are regular software and hardware updates. Before introduction of any new update, it is essential to test the behavior of the car. This can be done through simulation. Since the majority of the ECU in YellowCar are AUTOSAR based, several AUTOSAR simulation tools can be used to do so. However non-AUTOSAR ECU applications can still not be simulated in these tools. Moreover simulating with such tools need the whole application to be implemented and also very expensive. Simulink is one of the most powerful tools for the purpose of Model-in-the-Loop (MIL) testing which is a popular strategy in the embedded world. The scope of this Master thesis is analyzing the YellowCar and its architecture to develop a dynamic Simulink architectural model that can be modified and extended to facilitate future updates. The outcome of this thesis is an implementation of a model for the YellowCar which allows both AUTOSAR and non-AUTOSAR ECUs to be simulated as one system. Also the model supports extension by easy addition of new modules like ECU or sensor through a graphical user interface.

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Leitner, Florian. „Evaluation of the Matlab Simulink Design Verifier versus the model checker SPIN“. [S.l. : s.n.], 2008. http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-61257.

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Eastbourn, Scott Michael. „Modeling and Simulation of a Dynamic Turbofan Engine Using MATLAB/Simulink“. Wright State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=wright1340582603.

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Hendl, Adam. „Virtuální model technologického procesu řízený PLC“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413182.

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This Diploma thesis describes the procedure of setting the parameters of communication blocks and functions in PLC and PC, so that it is possible to remotely control part of the production process. TCP / IP protocol is used for communication between devices. Part of the production technology is represented by the created 3D model, which serves for three-dimensional interpretation of the simulation of the mathematical model of this part of the process. Part of this work is the design of this model and description of its dynamics.

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Dušek, Jiří. „Řízení stroje s PM v d-q osách při použití Matlab/Simulink“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218789.

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Tato práce se zabývá synchronním motorem s permanentními magnety na rotoru (PMSM), jeho modelováním a návrhu regulační struktury. V práci jsou uvedeny způsoby a výhody použití permanentních magnetů v elektrických motorech. Dále se práce zabývá transformací třífázové soustavy do dq0. Pomocí Parkovy transformace jsou v práci odvozeny rovnice stroje v dq0 souřadnicovém systému a vytvořeny náhradní schémata stroje v dq osách. Rovnice i schémata zahrnují jak ztráty v mědi, tak ztráty v železe. Náhradní schémata jsou popsány elektrickými a mechanickými rovnicemi a následně překresleny do grafické podoby v programu Matlab Simulink. Vytvořeny jsou dva modely PMSM, jeden s uvažováním ztrát v železe a druhý bez těchto ztrát. Pro oba dva modely je zde popsán postup návrhu regulátorů proudu a otáček. Pro model, u kterého jsou uvažovány ztráty v železe je navíc použito více druhů řídicích strategií a tyto strategie jsou mezi sebou navzájem porovnány.

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Kachlík, Jan. „Model elektrického vozidla v programu SIMULINK/SIMSCAPE“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219034.

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The topic of this diploma thesis is mathematical model of electric vehicle. The traction drive consists of Li-Ion battery, free-phase DC/AC converter and permanent magnet synchronous machine. The main goal of the thesis is development of function model and making simulations in SIMULINK/SIMSCAPE program. Work is divided into three main parts. The first part is dedicated to the theoretical description of the main drive components. The second part describes partial subsystems of the model. In the last part is build a complete model of electric vehicle and simulated different driving mode.

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McFarland, Matthew Ogden. „Enhanced Cal Poly SuPER System Simulink Model“. DigitalCommons@CalPoly, 2010. https://digitalcommons.calpoly.edu/theses/376.

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The Cal Poly Sustainable Power for Electrical Resources (SuPER) project is a solar power DC distribution system designed to autonomously manage and supply the energy needs of a single family off-the-grid home. The following thesis describes the improvement and re-design of a MATLAB Simulink model for the Cal Poly SuPER system. This model includes a photovoltaic (PV) array, a lead-acid gel battery with temperature effects, a wind turbine model, a re-designed DC-DC converter, a DC microgrid, and multiple loads. This thesis will also include several control algorithms such as a temperature controlled thermoelectric (T.E.) cooler, intelligent load switching, and an intelligent power source selector. Furthermore, a seven day simulation and evaluation of the results are presented. This simulation is an important tool for further system development, re-design, and long term system performance prediction.

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Hjorth, Mattias, und Björn Hvittfeldt. „Modelling an RF Converter in Matlab“. Thesis, Linköping University, Department of Electrical Engineering, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1026.

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Radar warning systems are life saving equipment in modern fighter aircraft. It is therefore vital that the system can tell the difference between a threat genuine frequency) and a false signal (spurious frequency).

This thesis presents a model aimed at predicting the frequencies and other parameters in the RF converter of the radar warning system. The components of the RF converter have been studied, measured, and modelled. The modelling tool has been the Simulink toolbox for Matlab.

Extreme accuracy has been sacrificed in order to make the model easy to use for the working engineer. Instead, this model presents a rough estimate of some of the most important properties of the radar warning system with just a few data sheet figures as input.

The simulation results are satisfactory as a whole. Simulink is the limiting factor in the implementation of the model. Significantly improved results can probably be obtained by working in another software environment.

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Kinjawadekar, Tejas. „Model-based Design of an Electronic Stability Control System for Passenger Cars Using CarSim and Matlab-Simulink“. The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1259174786.

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Kapusta, Juraj. „Diagnostika stroje založena na modelech“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442841.

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The main idea is focused on the diagnostics of a specific hydraulic system, i.e. sensing the physical quantities of the hydraulic circuit with a tank and a centrifugal pump driven by an asynchronous motor. It is a system of pipes connected to the pump, where due to its work it creates a water flow and a pressure increase. In practice, this issue is also addressed in the energy and nuclear industries. Primary circuits in some cases cannot be designed or modified to be able measure locally the pressure value. It is necessary to measure this quantity indirectly - from the motor currents. The main idea of the work is to diagnose the system by an indirect method - specifically to detect the state of the hydraulic circuit (pressure, flow) from the values that we are able to measure and detect damage in advance. In the second part of the thesis is the application of the parts of a specific hydraulic system in the simulation environment MATLAB Simulink. The model of the hydraulic circuit contains mathematical-physical relations that simulate the course of the mentioned experiment. The results of the simulation are compared with the results of the experiment. The model also investigates the simulation of a fault condition, when we supply pressure pulsations to the hydraulic circuit. It is these changes in the hydraulic part that affect the characteristics of the pump and the asynchronous motor, so we are able to diagnose this system.

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Wu, Wenzhuo. „Charging time estimation and study of charging behavior for automotive Li-ion battery cells using a Matlab/Simulink model“. Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-194490.

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An accurate estimation of the charging time of an automotive traction battery is possible only with the knowledge of different parameters of the battery and the vehicle. If this information is not available to the driver, the full time needed for charging of the battery may have to be assessed only from experience. A long route planning and estimation of required service life of the vehicle are therefore only roughly possible. Furthermore, with a better knowledge of estimated charging time, better management of public charging stations and better utilization of charging equipment can be achieved. An algorithm based on Matlab/Simulink model is made in the present thesis to estimate the charging time of a Li-ion battery pack which consists of 32 cells with 40 Ah each, as well as to investigate the impact of different cell balancing methods and different charging strategies on charging process. The theoretical background of the battery and charging modelling is investigated and different battery models are compared to get the best trade-off between the model accuracy and computation complexity. In the end, an electrical equivalent circuit model from reference [1], consists of a series resistor and two ZARC elements, is chosen to represent the battery cell. The parameters of the equivalent circuit are updated according to the SOC, current and temperature changes during the charging process. The whole simulation model of the algorithm consists of a charging controller (implementing the charging strategy), cell balancing logic controller, and cell balancing hardware simulation circuit and battery cell models. Different balancing criteria: based on SOC (with PWM drive) and based on terminal voltage (with/without advance) are implemented in the cell balancing logic controller, as well as different balancing windows, to investigate their impact on charging time. As for charging strategy, traditional CCCV is investigated, further investigation is conducted into improved CCCV method. The impact of initial SOC, charging rate and aging factor on charging behavior are investigated as well. Experiment results are validated by the comparison of the results with the ones got from a Hardware-in-the-loop simulation system.
En noggrann estimering av laddtiden hos batterier avsedda för traktionsapplikationer kräver kunskap kring batteriets och dess tillhörande laddsystems parametervärden. Utan tillgång till denna information kan laddtiden endast uppskattas från fordonsägarens tidigare erfarenheter vilket försvårar t.ex. ruttplanering. En estimering av laddtiden med tillräcklig noggrannhet kan även möjliggöra bättre utnyttjade av laddutrusting inklusive nyttjandet av publika laddstationer. I detta examensarbete har en algoritm, implementerad i Matlab/Simulink, för att estimera laddtiden hos ett litiumjonbatteripack bestående av 32 celler på vardera 40 Ah tagits fram. Med hjälp av modellen har olika laddstrategier och metoder för att balansera cellerna studerats. Ett antal olika batterimodeller har jämförts i termer av noggrannhet och krav på beräkningsprestanda. En elektriskt ekvivalent krets från referens [1], bestående av en serieresistans samt två ZARC-element, valdes slutligen för att representera battericellen. Den ekvivalenta kretsens parametrar uppdateras vid förändringar i SOC, ström och temperatur. Hela simuleringsmodellen består av en laddregulator (i vilken laddstrategin är implementerad), cellbalanseringregulator och modeller för cell och cellbalanseringens hårdvara. Ett antal metoder för att balanser cellerna har jämförts med hänsyn till påverkan på den resulterande laddtiden. En traditionell samt modifierad CCCV laddstrategi har implementerats och jämförts med avseende på variationer i inledande SOC, total laddtid samt åldring. Experimentella resultat från en hardware-in-the-loop simulering har använts för att delvis kunna verifiera de framtagna resultaten.

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Irman, Svraka, und Österdahl Wetterhag Linus. „Model Based Catalyst Control“. Thesis, Linköpings universitet, Fordonssystem, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158634.

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A one dimensional discretized model of a two brick three way catalyst (TWC) system was developed and implemented in MATLAB, Simulink and TargetLink in collaboration with Volvo Cars and Linköpings Universitet - ISY. The purpose of this thesis was to increase system understanding and create a model based TWC control for further development at Volvo Cars. A total of 50 states were modelled, including emission concentrations (O2, CO, C3H6, C3H8, H2, NOx, CO2, H2O), temperature and oxygen buffer level (OBL). A model based control structure was implemented in the form of five separate PID-controllers enabling possibilities to control the OBL of each separate slice of each brick individually and through simple reference handling. The control structures includes anti-windup, feedforward control and feedback safety for model reset during sensor indication of leakage. Specific equipment and software used included MATLAB, Simulink, TargetLink, Volvo SULEV30 TWC and testing rigs. Overall increase in system understanding was achieved in comparison with contemporary TWC modelling and control, as well as sufficient system performance in regard to estimate emissions, simulation duration and pedagogical value. Concluding thoughts of the thesis revolve the complexity of the actual TWC modelling, parameter estimation as well as control. The model presented in this thesis has great potential of describing TWC systems but with great effort during parameter estimation. With ECU performance available in temporary vehicle production year 2019, a complex model may be combined with a simple control strategy whilst a simple model may be combined with a complex control strategy.

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Matiaško, Dušan. „Modely a simulace pochodů bezemisního mini-exkavátoru s elektrickým pohonem“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-442805.

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The diploma thesis dealt with a partial problem of conversion of the mini-excavator E19 by Bobcat with an internal combustion engine to emission-free propulsion. The main task was design and construction of electrical and hydraulic circuits focusing on the drive of a mini-excavator. The simulations verified the properties and behavior of the mini-excavator under different conditions and initial settings. The results were comfirmed by experimental measurements. The output of the simulations recommended adjustments to the values of individual parameters depending on the travel speed but also the efficiency of the entire machine.

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Hussain, Mohammed Mohammed. „Optimalizace parametrů asynchronního motoru“. Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-233580.

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The doctoral thesis is divided into two main parts.The first part deals with optimalization of the equivalent circuit parameters of induction motor for calculation steady state characteristics:- - of the equivalent circuit parameters of induction motor with normal slots. - of the equivalent circuit parameters of induction motor with deep slots. -simulation of selected chracteristics and comparison with measured values. The second part of this work deals with optimalization of the equivalent circuit parameters of induction motor for calculation of dynamic characteristics of induction motor –simulation of selected chracteristics and comparison with measured values. The optimalization is based on mutual comparison of measured and calculated torque-speed and current-speed characteristics.

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Azzollini, Ilario Antonio. „Analysis of Lead-Acid batteries with a third-order dynamical model“. Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2016.

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Electrical energy storage is a really important issue nowadays. As electricity is not easy to be directly stored, it can be stored in other forms and converted back to electricity when needed. As a consequence, storage technologies for electricity can be classified by the form of storage, and in particular we focus on electrochemical energy storage systems, better known as electrochemical batteries. Largely the more widespread batteries are the Lead-Acid ones, in the two main types known as flooded and valve-regulated. Batteries need to be present in many important applications such as in renewable energy systems and in motor vehicles. Consequently, in order to simulate these complex electrical systems, reliable battery models are needed. Although there exist some models developed by experts of chemistry, they are too complex and not expressed in terms of electrical networks. Thus, they are not convenient for a practical use by electrical engineers, who need to interface these models with other electrical systems models, usually described by means of electrical circuits. There are many techniques available in literature by which a battery can be modeled. Starting from the Thevenin based electrical model, it can be adapted to be more reliable for Lead-Acid battery type, with the addition of a parasitic reaction branch and a parallel network. The third-order formulation of this model can be chosen, being a trustworthy general-purpose model, characterized by a good ratio between accuracy and complexity. Considering the equivalent circuit network, all the useful equations describing the battery model are discussed, and then implemented one by one in Matlab/Simulink. The model has been finally validated, and then used to simulate the battery behaviour in different typical conditions.

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Novosád, Boris. „Simulační modelování elektromagnetického vibračního generátoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228738.

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The aim of this work is to create complex virtual model of electromagnetic vibration generator. This model will include mechanical and electromagnetic subsystem and also the model of output circuit. Created model will be implemented in Matlab/Simulink enviroment and model parameters will be identified so that the compare of simulation and real results will be acceptable.

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Freire, Guilherme Mendonça. „Uma investigação sobre o uso da UML Statechart para representar o comportamento de aplicações modeladas em Matlab/Simulink“. Universidade Federal de São Carlos, 2011. https://repositorio.ufscar.br/handle/ufscar/542.

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Made available in DSpace on 2016-06-02T19:06:07Z (GMT). No. of bitstreams: 1 5452.pdf: 2351043 bytes, checksum: 0d55a4fbf3ab7f02e097b7df0101db3c (MD5) Previous issue date: 2011-12-13
Financiadora de Estudos e Projetos
Embedded systems (ES) has become more important to everyday life due to technology advance and increasing application field. Engineers start ES development using tools like Matlab/Simulink. Usually, Simulink models are low level abstraction models following an ad-hoc design, which difficult the model comprehension. Hence, new trends start to apply software engineering to support ES design. Goal: This work was developed in a research group that is defining a development process to support ES development from initial phases to Simulink models implementation. Particularly, this works goal is to explore UML Statchart technique to depict Simulink models in a high level abstraction view, and become the group s desired component part of the process. Method: The investigation process was conducted in three actions exploring UML Statchart based in the Research Action methodology: (i) a reengineering activity starting from Simulink model; (ii) a forward engineering starting from a requirement document; and (iii) a survey investigating the use of UML Statechart by ES developers. Outcomes: The first and second action showed that UML Statechart is an appropriated technique to depict the application behavior, contributing to implement Simulink models. It also organizes Simulink models and facilitates the system comprehension as a whole. Conclusion: Due to the conducted actions outcomes, UML Statechart can be considered as a candidate to compose one of the artifacts to be implemented during the process that is being defined by the research group. However, this work conducted investigations are limited to two system applications, needing to accomplish more complement studies, we can say that Simulink models implemented with support of UML Statechart, are better structured and more comprehensive. This features an increasing quality in ES design.
Os sistemas embarcados (SE) têm se tornado cada vez mais presentes na vida das pessoas em decorrência dos avanços tecnológicos e do aumento na diversidade em suas áreas de aplicação. Em geral, os desenvolvedores desse tipo de sistema iniciam o desenvolvimento com o uso de ferramentas do tipo Matlab/Simulink, elaborando modelos em um nível baixo de abstração, que são construídos de forma desorganizada, o que dificulta o entendimento da aplicação. Em decorrência disso, observam-se iniciativas de uso da engenharia de software nesse tipo de sistema. Objetivo: O grupo de pesquisa no qual este trabalho foi desenvolvido está definindo um processo para o desenvolvimento de SEs que dê suporte das fases iniciais até a construção dos modelos Simulink. Em particular, este trabalho tem o objetivo de explorar o uso da UML Statechart para retratar o modelo Simulink em um nível mais alto de abstração, tornando-se então um dos componentes do processo almejado pelo grupo. Método: Para fazer essa investigação, utilizou-se a metodologia Pesquisa-Ação e três ações foram conduzidas, explorando-se a UML Statechart em: (i) uma atividade de reengenharia, partindo do Simulink e reestruturando-o; (ii) em uma atividade de engenharia avante, partindo de um documento de requisitos; e (iii) em um survey, caracterizando o uso da UMS Statechart por desenvolvedores de SEs. Resultados: Nas duas primeiras ações, a UML Statechart se mostrou apropriada para representar o comportamento da aplicação, de forma a contribuir na construção do modelo Simulink, facilitando a compreensão do sistema como um todo e permitindo a elaboração de um Simulink mais organizado. Conclusões: Os resultados obtidos nas ações permitem considerar que a UML Statechart é uma forte candidata para compor um dos artefatos a serem construídos durante o processo que está sendo definido pelo grupo de pesquisa. Embora as investigações conduzidas neste trabalho estejam limitadas a duas aplicações, requerendo que outros estudos sejam realizados, pode-se dizer que os modelos Simulink construídos com o apoio do modelo UML Statechart são mais estruturados e mais compreensíveis. Isso caracteriza uma melhora de qualidade no desenvolvimento de SEs.

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Marek, Petr. „Matematický model hnacího ústrojí motorového vozidla“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2010. http://www.nusl.cz/ntk/nusl-229338.

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The subject of my master’s thesis is creating a mathematical model of motor vehicle driving gear using the software programs MATLAB / Simulink. The results are presented via graphs of the data gained from the simulation of a car driving on a determined track. The parameters used in the model come from a specific file and they can be changed anytime in order to correspond with the particular vehicle.

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Hawn, David Phillip. „Development of a Dynamic Model of a Counterflow Compact Heat Exchanger for Simulation of the GT-MHR Recuperator using MATLAB and Simulink“. The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1236091152.

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Rao, Shreesha Yogish. „Development of a Heavy Truck Vehicle Dynamics Model using Trucksim and Model Based Design of ABS and ESC Controllers in Simulink“. The Ohio State University, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=osu1364407532.

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Roslund, Anton. „Evaluation of Automated Test Generation for Simulink : A Case Study in the Context of Propulsion Control Software“. Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-48426.

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Automated Test Generation (ATG) has been successfully applied in many domains. For the modeling and simulation language Simulink, there has been research on developing tools for ATG with promising results. However, most tools developed as part of academic research and are not publicly available, or severely limited in their ability to be integrated into an industrial workflow. There are commercial ATG tools for Simulink, with Simulink Design Verifier (SLDV) as the de-facto standard tool. For this thesis, we perform an empirical comparison of manual tests to those generated by SLDV. For the comparison, we used 180 components from the propulsion control software developed by our industry partner. All except two components are compatible for test generation to some extent. The majority of components are partially compatible, requiring block replacement or stubbing. Approximation of floating-point numbers is the primary reason for block replacement, which can be performed automatically by SLDV. Two components were incompatible, and 14 required full stubbing of blocks. Using a pre-processing step, the generated tests achieve similar coverage as the manual tests. We performed a Mann–Whitney U test with the hypothesis that the generated tests achieve higher coverage than the manual tests. There are no statistically significant differences for either decision coverage (0.0719), or condition coverage (0.8357). However, for Modified Condition/Decision Coverage, the generated tests achieve higher coverage, and the difference is significant (0.0027). The limitations of ATG were explored by looking at the cases where the generated tests achieved lower coverage than the manual test. We found that the use of floating-point arithmetic and temporal logic increases the time required for test generation, and causes the analysis to hit the time limit. The test generation does not support all custom S-functions and perform stubbing of these blocks. This made the tool unable to reason about persistent storage. Configuration constants have limited support, which was the reason for the coverage difference in three cases. We have concluded that while much effort is required for custom tooling and initial setup, ATG can prove useful for early fault detection in an industrial workflow. ATG would prove especially useful in an automated continuous integration workflow for integration-level conformance testing.

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Sobočík, Robert. „Použitelnost Simulinku pro modelování prádelenského procesu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2014. http://www.nusl.cz/ntk/nusl-231187.

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This thesis is devided into two parts. First part is a bibliographic search and speaks about maths modeling, simulations, a MATLAB Simulink programme, and a laundy process. Second part deals with a math model of an industrial laundry. In this part, there is a detailed descripton of the model and how the model was created.

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Števček, Tomáš. „Model větrné elektrárny pro výzkumné a laboratorní využití“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221198.

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A major portion of this thesis is devoted to the Whisper 200 wind turbine model in Matlab-Simulink environment. The turbine is installed at the Department of Electrical Power Engineering, FEEC BUT. In the model, several types of simulations can be executed. On that basis, the power curve and mathematical relationships between wind speed and other physical quantities, such as RPM, electic current, and voltage, were obtained. Comparisons of the simulations' results with measurement data illustrate adequate agreement, but limitations of the model remain significant, as is exhaustively documented and commented upon in the thesis. As a partial advancement towards elimination of the model's deficiencies, conditions for substantial performance improvements of the dynamic simulation have been elaborately derived.

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Eliasson, Mikaela. „Kvantifiering av föroreningstillskott från dagvatten inom skyddsområdet för Göta Älv : en simuleringsstudie med modellen SEWSYS“. Thesis, Uppsala University, Department of Earth Sciences, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-88867.

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The river Göta Älv reaches between Vänern and Gothenburg and is the main raw water source for Gothenburg that supplies about 700 000 people with water. To protect and maintain a high water quality, continuously samples and water analyses are made throughout the river. In 1998 a protection area was founded between surte and Lärjeholm where the raw water intake is. This was made to increase the awareness of the importance to protect the water. However, there is a lot of contribution of untreated stormwater to Göta Älv within the protection area.

Göteborg Water and Sewage Works commissioned this thesis where two areas, Tagene industrial area and Kärra residential area, with untreated stormwater outlets within the protection area are studied. The areas have been divided according to surface composition with different rates of pollutant contribution. Then the stormwater flow and the contribution of pollutants was simulated with the model SEWSYS. The future aim is that the model will be able to simulate the contribution of pollutants for a variety of rains, for the whole protection area.

SEWSYS (Sewer System) is built in MATLAB/Simulink and consists of three modules, a stormwater module, a sanitary wastewater module and a treatment plant module. This project only includes the stormwater module. The model simulates the stormwater flow and the pollutants total phosphorous, total nitrogen, copper, zinc, lead, cadmium and polycyclic aromatic hydrocarbons (PAH). Samples and analysis for the two areas has been carried out for another thesis work during the same period. The results from those analyses have been used for the model settings for the areas.

Simulations have been performed to adjust the model and evaluate its ability to describe the stormwater flow and the pollutant contribution within the areas. The amount of stormwater and the runoff are well simulated by the model. However, the measured and analysed data has not been enough to get reliable simulations over the pollutant contribution. Further development of the model is necessary. Generally the model simulates lower values compared to measured values, especially in the industrial area. For a more general understanding over how SEWSYS works for the two areas, simulations were carried out on a yearly basis. Those simulations have been compared with general data for stormwater pollutants. Even though the results from the simulations have shown lower values than the measured values, the model shows clearly that the contribution of pollutants from the industrial site is greater than the contribution from the residential site.

Göta Älv sträcker sig från Vänern ner till Göteborg och är Göteborgs huvudsakliga råvattentäkt som försörjer ca 700 000 personer med vatten dagligen. För att säkra råvattenkvaliteten görs kontinuerliga provtagningar utmed älven. Dessutom beslutade Länsstyrelsen 1998 om ett skyddsområde med skyddsföreskrifter för avrinningsområdet mellan Surte i norr till vattenintaget vid Lärjeholm i söder. Ett mål med skyddsområdet är att det ska öka medvetenheten hos boende och de som är verksamma inom området om behovet att värna om vårt vatten. Dock leds det på flera ställen ut orenat dagvatten till älven inom skyddsområdet.

Examensarbetet är ett uppdrag av Göteborgs Va-verk där två områden med orenade dagvattenutsläpp till Göta Älv studeras, Tagene industriområde samt Kärra bostadsområde. Dessa områden har karterats och dagvattenflödet samt föroreningsbelastningen från dagvattnet har simulerats med modellen SEWSYS. Målet på lång sikt är att modellen ska kunna användas för att simulera föroreningsbelastningen vid olika regn för hela skyddsområdet.

Modellen SEWSYS (Sewer System) är uppbyggd i MATLAB/Simulink och bygger på tre moduler, en dagvattenmodul, en spillvattenmodul och en reningsverksmodul. För detta projekt har endast delen för dagvatten använts. Modellen simulerar dagvattenflödet och behandlar föroreningarna totalfosfor, totalkväve, koppar, zink, bly, kadmium samt polycykliska aromatiska kolväten (PAH). I ett examensarbete parallellt med detta har provtagning och analyser av föroreningar för de båda områdena ägt rum och dessa värden ligger till grund för inställningen av modellen.

Simuleringar har utförts för att anpassa modellen samt utvärdera dess förmåga att beskriva dagvattenflödet och föroreningsbelastningen inom de aktuella områdena. Simuleringarna visar att avrinningen och dagvattenflödet simuleras bra av modellen. Det har dock visat sig att de gjorda mätningarna inte har varit tillräckliga som underlag för att få en tillförlitlig beskrivning av föroreningsbelastningen och vidare utveckling är nödvändig. Detta gäller särskilt i industriområdet där modellen generellt simulerar för låga föroreningsmängder. För en mer allmän uppfattning av SEWSYS modellen för de två områdena, har även simuleringar på årsbasis utförts och jämförts med schablonhalter för dagvattenföroreningar. Trots att simuleringsvärdena har legat lägre än de uppmätta värdena på föroreningsmängderna har det gått att visa att industriområdet bidrar till högre föroreningsbelastning än bostadsområdet på recipienten Göta Älv.

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Gilani, Muhaned. „Development Of A Dynamic Flight Model Of A Jet Trainer Aircraft“. Master's thesis, METU, 2007. http://etd.lib.metu.edu.tr/upload/2/12608298/index.pdf.

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A dynamic flight model of a jet trainer aircraft is developed in MATLAB-SIMULINK. Using a six degree of freedom mathematical model, non-linear simulation is used to observe the longitudinal and lateral-directional motions of the aircraft following a pilot input. The mathematical model is in state-space form and uses aircraft stability and control derivatives calculated from the aircraft geometric and aerodynamic characteristics. The simulation takes the changes in speed and altitude into consideration due to pilot input and demonstrates the non-linearity of the aircraft motion. The results from the simulation are compared with the results from flight characteristics manual of the actual aircraft to validate the mathematical model used. The simulation is carried out for a number of airspeed and altitude combinations to examine the effect of changing speed and altitude on the aircraft dynamic response.

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Macík, Tomáš. „Model trojfázové umělé sítě“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413220.

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The Diploma thesis deals with control of three-phase active rectifier and a three-phase DC/AC converter. It also explains phase-locked loop principle. The theoretical part including first three chapters lists several control approaches to three phase active rectifier and three phase DC/AC converter. Described control approaches to the active rectifier are control in dq frame and control in dq UVW frame. Listed control approaches to the DC/AC converter include cascaded control structure and a full state feedback control. The practical part is divided into last three chapters and includes mathematical description of phase-locked loop principle, model of active rectifier controlled in dq frame and a model of DC/AC converter controlled both by a cascaded control and a full¬ state feedback. The models are created in Matlab Simulink.

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Loucký, Vojtěch. „Model Li-ion akumulátoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442783.

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This diploma thesis deals with description of the principle of Li-ion cells, literature search on the topic of mathematical models of Li-ion cells and the creation of a selected mathematical model in MATLAB, which is able to simulate the course of voltage and state of charge as a function of time for different ambient conditions, such as various aging of battery .The creation of both the model and the procedure of identification of parameters necessary for the creation of the model are described here as well as different options of identification of parameters. The selected Thevenin model is then compared with the real course and the accuracy of the model is evaluated with respect to the measured course.

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Cyprian, Rudolf. „Aktivní řízení předpětí hlavy obráběcího stroje“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230921.

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This Master’s Thesis introducing active preload control of machine tool head supported by a company TOSHULIN, a.s. It presents a way of creating models from rigid body models to flexible bodies and finally to multi-body systems with control loop. The goal of this thesis is create active preload control using a piezo-stack system for simplified linear model of ma-chine tool head.

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Vaněk, Vojtěch. „Diagnostika stavu tlumiče za jízdy vozidla“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2021. http://www.nusl.cz/ntk/nusl-445178.

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The diploma thesis deals with the analysis of the effects of shock absorber wear on the driving dynamics of the vehicle. Furthermore, a quarter model of the car was created in the Simulink software, where a procedure for evaluating the condition of the shock absorber while driving the vehicle was created. This procedure was subsequently validated on real measured data from the Hummer H3 car.

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Hedon, Martin. „Modeling and Simulation of a Hybrid Powertrain“. Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235271.

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Hybrid powertrains represent the current trend on passenger cars. The purpose of thisreport is to create a basic model of a hybrid powertrain in Matlab/Simulinkenvironment and study their performance over certification driving cycle. Threecommonly used architectures are modeled and discussed in Simulink. Hence, the basiccomponents of a powertrain – battery, electric machine and combustion engine – arestudied and basic models are realized. A Thevenin equivalent circuit is used to simulatethe behavior of the battery, and the combustion engine is modeled after a Willansmodel. The electric machine model is based on a known efficiency map. Then, thearchitectures are created as well as their control strategies. The control strategies arecreated through state diagrams, and implemented into the Simulink model viaStateflow charts. A validation procedure is presented in order to study the consistencyof the models.
Hybrid drivlinor representerar en central personbilstrend. Syftet med rapporten är attpresentera en grundläggande modell för en hybrid drivlina i Matlab/Simulink. Trearkitekturer behandlas och har implementerats i Simulink. Sedan studeras degrundläggande komponenterna i ett drivaggregat (batteri, elmaskin ochförbränningsmotor). En Thevenin-ekvivalent krets används för att simulera batterietsbeteende. Förbränningsmotorn är modellerad efter en Willans-modell.Elmaskinmodellen är baserad på en känd verkningsgradsmapp. De tillhörandestyrstrategierna med hjälp av tillståndsdiagram. De implementeras i Simulinkmodellenmed hjälp av Stateflow-diagram. Ett valideringsförfarande presenteras ochvisar modellernas konsistens.

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Michaliczek, Jan. „Synchronní generátor s permanentními magnety a aktivním usměrňovačem“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219911.

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The main objective of the master`s thesis was to prove, if permanent magnet synchronous generator made by company JULI Motorenwerk s.r.o. could reach higher maximum active power with active rectifier than with six-pulse bridge rectifier. For this reason a mathematical model was made in Matlab/Simulink. The influence of the rectifiers with various kinds of loading was observed and compared by simulations on output variables, like line-to-line voltage and active power. The simulations were also compared with measurement.

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Gaudray, Gordon. „A behavioral model of solar/diesel/Li-ion hybrid power systems for off-grid applications : Simulation over a lifetime of 10 years in constant use“. Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160967.

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Remote hybrid power systems (RHPS) serve local off-grid loads or various island grids when no grid extension is possible. They combine renewable resources, conventional generators and energy storage systems in order to balance the load at any moment, while ensuring power quality and energy security similar to large centralized grids. Modelling such a complex system is crucial for carrying out proper simulations for predicting the system’s behavior and for optimal sizing of components. The model should include an estimation of the renewable resource availability over the period of the simulation, a prediction of the load consumption and time variation, the choice of technologies, a prior dimensioning approach, an energy dispatching strategy between the components and, finally, the behavioral model of all components. This study limits its scope to the simulation of a RHPS composed of solar PV panels, a diesel generator set, and a Li-ion battery bank supplying a dynamic isolated load with a daily demand variation between 10 kW and 80 kW. Methods for building load scenarii are explained first and then, rules of thumbs for selecting the technologies and pre-sizing the components are reviewed. Commonly used dispatching strategies are described before detailing the algorithm of a Matlab behavioral model for the system’s components with an emphasis on the proper prediction of performance and aging for the Li-ion battery model. Finally, a 10-year simulation is carried out over a case study and the results are analyzed.

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Wittwer, Max. „Modelling and Design of a Test Rig to investigate the dynamic behaviour of a Servo driven Powertrain“. Master's thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2018. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-232565.

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In the present work a simulation model for examining the fundamental dynamic behaviour of a servo driven powertrain is developed. This powertrain consists of a permanent magnet synchronous motor, a cycloidal gearbox and a torque motor to apply a load. On basis of this model the selection of components for the design of a test rig is possible. This leads to the constructive draft of the test rig. In order to model the system, the fundamentals give a brief overview of the components incorporated in the test rig system. With ais of the specified task the simulation purpose is defined and the modelling process enabled. The subsequent system analysis is performed intensively to decompose the system into subsystems, which are then investigated to find the optimal modelling approach for the given simulation task. Particular emphasis is put on the investigation of the cycloidal gearbox subsystem and it shows, that approaches for modelling the dynamic behaviour of the gearbox as a whole have only been published partially. Therefore, the available modelling approaches are analysed and suitable models are developed as conceptual models. Those will be formalised and implemented in Matlab/Simulink. The model is verified and simulation experiments are performed, that help in the selection of suitable test rig components. On basis of a flexible test rig, finally the constructive draft is presented.

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Amkoff, Leon. „Utveckling av simuleringsmodell och automatiserad nedställningsfunktion för en frontlastare“. Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-160038.

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En växande global befolkning och stor efterfrågan på grödor driver den teknologiska utvecklingen framåt inom det moderna lantbruket. I sin utveckling av nya styr- och reglerfunktioner för frontlastare behövde Ålö AB en pålitlig och effektiv plantmodell av deras frontlastare Quicke Q5M. Plantmodellen skulle inkludera det tillhörande mekaniska och hydrauliska systemet och kunna rendera simulering och 3D-animering i realtid. En automatisk nedställningsfunktion för material skulle också utvecklas för att automatisera den vanligt förekommande sysslan att ställa ned material från en upphöjd position. En plantmodell för Quicke Q5M med ett lastkännande hydraulsystem utvecklades i MATLAB Simulink med Simscape Multibody och Simscape Fluids. Prestandan av den simulerade plantmodellen utvärderades. Plantmodellen visade grundläggande överensstämmelse när den jämfördes med sensordata från en frontlastare i verkligheten. En reglerfunktion för automatisk nedställning av material utvecklades i Simulink. En algoritm för att detektera kollision med mark konstruerades genom att analysera sensordata från en frontlastare i verkligheten som ställt ned material på marken. För att detektera materialets kontakt med mark utfördes hastighets- och accelerationsestimeringar på sensordata från vinkelgivare och trycksensorer. Vid kontakt med mark avslutades nedställningsrörelsen automatiskt. Prestandan och noggrannheten av reglersystemet under olika scenarion analyserades och diskuterades. Trots att simuleringar av plantmodellen och den föreslagna nedställningsfunktionen såg realistiska ut var det svårt att kvantifiera överensstämmelsen mellan plantmodell och frontlastare då inga utförligare fysiska tester hanns med. Framtida utveckling av plantmodell och nedställningsfunktion rekommenderas därför att börja med ett implementeringstest av reglerfunktionen i en traktor i verkligheten. Det skulle ge ett mått på hur pass bra plantmodellen representerar frontlastaren samt möjliggöra utvärdering och vidare justering av reglerfunktionens parametrar i en verklig fysisk miljö.
A growing global population and large demands for crops worldwide is driving agricultural technological advances forward. In developing new automatic control functions for front end loader applications, Ålö AB needed a reliable and effective plant model of their front end loader Quicke Q5M. The plant model should include the associated mechanical and hydraulic system and be capable of rendering simulation and 3D animation in real time. An automated put down control function would also be of benefit for farming operators, speeding up the commonly performed farming task of putting down material from an elevated position. A plant model for the Quicke Q5M with a Load Sensing hydraulic system was developed in MATLAB Simulink with Simscape Multibody and Simscape Fluids. The performance of the simulated plant model was evaluated. The plant model showed some consistent results when compared to sensor data logs from a real-world front end loader. An automatic put down control function for material was also developed and tested in Simulink. A collision detection algorithm was constructed by analyzing sensor data logs from a real-world tractor putting down material on the ground. Velocity and acceleration estimations were made from angular position and pressure sensors to detect the contact between material and ground. The control function automatically stopped the lowering movement when contact was detected. The performance and accuracy of the control system under different scenarios were analyzed and discussed. Although the simulations of the plant model and proposed control function seemed realistic, the consistency of the plant model was hard to quantify since there was no time left for any thourough physical tests. It is recommended that future development of both the plant model and control system begin with an implementation test of the control system in a real-world tractor. This would help determine how accurately the plant model represents the front end loader. It would also allow evaluation and further tuning of the control function in a real physical environment.

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Jansson, Lovisa, und Amanda Nilsson. „Evaluation of Model-Based Design Using Rapid Control Prototyping on Forklifts“. Thesis, Linköpings universitet, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158715.

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The purpose of this thesis is to evaluate Rapid Control Prototyping which is apart of the Model-Based Design concept that makes it possible to convenientlytest prototype control algorithms directly on the real system. The evaluation ishere done by designing two different controllers, a gain-scheduled P controllerand a linear Model Predictive Controller (mpc), for the lowering of the forks of aforklift.The two controllers are first tested in a simulation environment. The thesis con-tains two different simulation models: one physical where only minor parameteradjustments are done and one estimated black-box model. After evaluating thecontrollers in a simulation environment they are tested on a real forklift with areal-time target machine.The designed controllers have different strengths and weaknesses as one is non-linear and single variable, the P controller, and the other linear and multivariable,thempc. The P controller has a smooth movement in all situations without be-ing slow, unlike thempc. The disadvantage of the P controller compared to thempcis that there is no guarantee that the P controller will keep the speed limit,whereas thempcapproach gives such a guarantee.The better performance of the P controller outweighs the speed limit guaranteeand thus a conclusion is drawn that the nonlinearities of the system has a largereffect than the multivariable aspect. Also, another conclusion drawn is that work-ing with Model-Based Design and Rapid Control Prototyping makes it possibleto test many different ideas on a real forklift without spending a lot of time onimplementation.
Syftet med detta examensarbete är att utvärdera Rapid Control Prototyping vil-ket är en del av modellbaserad utveckling som gör det möjligt att enkelt testamodeller av styralgoritmer direkt på det riktiga systemet. Utvärderingen är gjordgenom att testa två olika regulatorer, en P-regulator med parameterstyrning ochen linjär modelbaserad prediktionsregulator (mpc), för sänkningen av gafflarnapå en truck.De två regulatorerna testas först i en simuleringsmiljö. I arbetet används två olikasimuleringsmodeller: en fysikalisk där endast mindre parameterjusteringar görsoch en estimerad black-box modell. Efter att regulatorerna utvärderas i simule-ringsmiljön testas de även på en riktig truck med hjälp av automatisk kodgenere-ring och exekvering på en dedikerad hårdvaruplattform.De konstruerade regulatorerna har olika för- och nackdelar eftersom en är olinjäroch envariabel, P-regulatorn, och en är linjär men flervariabel,mpc:n. P-regulatornhar en mjuk rörelse i alla lägen utan att bli för långsam, till skillnad frånmpc:n.Nackdelen med P-regulatorn, jämfört medmpc:n är att det inte finns någon ga-ranti för att P-regulatorn håller hastighetsbegränsningen sommpc:n gör.P-regulatorns bättre prestanda överväger garantin om att hålla hastighetsbegräns-ningen och därför dras slutsatsen att olinjäriteterna i systemet överväger effekter-na av det faktum att det också är flervariabelt. En annan slutsats är att modell-baserad utveckling och Rapid Control Prototyping gör det möjligt att testa fleraolika idéer på en riktig gaffeltruck utan att spendera för mycket tid på implemen-tationen.

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Burlachenko, Sofiia. „Model Ball & Plate: simulace a návrh řízení“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2019. http://www.nusl.cz/ntk/nusl-399283.

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This thesis deals with the identification and regulation of the "Ball & Plate" model. The thesis contains a description of the existing real model and the relevant mathematical and simulation model. The root hodograph method and the state space method are used to calculate the controller, especially the feedback controller with integrator. The final part of the work is devoted to the 3D model construction using Simulink and SimScape, which describes and visualizes the behavior of the real model and enables simulation experiments to be performed quickly and easily.

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Nuzum, Sean Robert. „Aircraft Thermal Management using Liquefied Natural Gas“. Wright State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=wright1462460693.

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41

Starý, Zdeněk. „Model pro výpočet oteplovacích charakteristik silových kabelů“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217817.

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The result of this assignment is the Model for the Cable Thermal Characteristic Calculation. Firstly, there is a prepared overview that is focused on the essential ideas of cable technology. The following part describes the simple possibilities of passaging the heat. Secondly,the physical essence of warming cables as well as the possibility to discover the methods how to calculate the warming cables are also mentioned in this task.There is an opportunity to find the methods for calculating the warming cables as well. The model was verificationed in the conclusion of my assignment. The measurement was done and the empirical results were compared with the results that were achieved by modeling.

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42

Chrobák, Petr. „Dynamický model a odbuzení bezkartáčového synchronního generátoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219904.

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This master thesis is focused on the synchronous generator mathematical model analysis. Based on the analysis are compiled mathematical models of main generator and exciter cooperating in brushless synchronous generator excitation system. Mathematical models of both machines are based on system of differential equations and their validity is verified in Matlab-Simulink. The master thesis is devided into three main parts. First part is focused on the derivation of differential equations to describe the behavior of electrical quantities of machines. In the second part are compiled and simulated mathematical models of both synchronous machines in Matlab-Simulink. The correctness of models are verified by approximate analytical calculations of selected steady and dynamic states. The last part is focused on design and simulation of concept for main generator rapid field winding deexcitation in brushless synchronous genereator excitation system.

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Klikpo, Enagnon Cédric. „Méthode de conception de systèmes temps réels embarqués multi-coeurs en milieu automobile“. Thesis, Sorbonne université, 2018. http://www.theses.fr/2018SORUS033/document.

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La complexité croissante des applications embarquées dans les voitures modernes augmente le besoin de puissance de calcul. Pour répondre à ce besoin, le standard automobile AUTOSAR introduit l'utilisation de plates-formes multi-cœurs. Cependant, l'utilisation du multi-cœurs pour des applications temps-réel critique automobile soulève plusieurs problématiques. Notamment, il faut respecter la spécification fonctionnelle et garantir de manière déterministe les échanges de données entre cœurs. Dans cette thèse, nous considérons des systèmes multi-périodiques spécifiés et validés fonctionnellement avec des modèles Matlab/Simulink. Ainsi, nous avons développé un framework pour déployer des applications Matlab/Simulink sur AUTOSAR multi-cœurs afin de garantir le déterminisme fonctionnel et temporel tout en exploitant au mieux le parallélisme. Notre contribution a porté sur trois axes. Premièrement nous avons identifié les mécanismes d'échanges de données imposés dans le modèle fonctionnel Matlab/Simulink. Nous avons montré que ces mécanismes pouvaient s'exprimer en utilisant le formalisme des Synchronous Dataflow Graph (SDFG). Ce modèle est un excellent outil d'analyse pour exploiter le parallélisme car il est très populaire dans la littérature et largement étudié pour le déploiement d'applications flow de données sur plateforme multi/many-cœurs. Par la suite, nous avons développé des méthodes pour réaliser le flux de données exprimés par le SDFG dans un ordonnancement temps-réel préemptif. Ces méthodes utilisent des résultats théoriques sur les SDFGs pour garantir les contraintes de précédence de manière déterministe sans utiliser des mécanismes de synchronisation bloquants. De cette sorte, nous garantissons à la fois le déterminisme fonctionnel et temporel des applications. Finalement, nous caractérisons l'impact des contraintes de flux de données sur l'ordonnancement des tâches. Nous proposons une technique de partitionnement qui minimise cet impact. Nous montrons alors que cette technique favorise la construction d'un partitionnement et d'un ordonnancement lorsqu'elle est utilisée pour initialiser des algorithmes de recherche et d'optimisation heuristiques
The increasing complexity of embedded applications in modern cars has increased the need of computing power. To meet this need, the European automotive standard AUTOSAR has introduced the use of \multicore platforms. However, \multicore platform for critical automotive applications raises several issues. In particular, it is necessary to respect the functional specification and to guarantee deterministically the data exchanges between cores. In this thesis, we consider multi-periodic systems specified and validated with \mat. So, we developed a framework to deploy \mat applications on AUTOSAR \multicore. This framework guarantees the functional and temporal determinism and exploits the parallelism. Our contribution is threefold. First, we identify the communication mechanisms in \mat. Then, we prove that the dataflow in a multi-periodic \mat system is modeled by a SDFG. The SDFG formalism is an excellent analysis tool to exploit the parallelism. In fact, it is very popular in the literature and it is widely studied for the deployment of dataflow applications on multi/many-core. Then, we develop methods to realize the dataflow expressed by the SDFG in a preemptive \rt scheduling. These methods use theoretical results on SDFGs to guarantee deterministic precedence constraints without using blocking synchronization mechanisms. As such, both the functional and temporal determinism are guaranteed. Finally, we characterize the impact of dataflow requirements on tasks. We propose a partitioning technique that minimizes this impact. We show that this technique promotes the construction of a partitioning and a feasible scheduling when it is used to initiate multi-objective research and optimization algorithms. %As such, we reduce the number of design iterations and shorten the design time

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Zborovský, Vojtěch. „Propojení virtuálního modelu v MATLAB/Simulink s PLC“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377022.

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Master’s thesis describes creating of virtual reality in VRML Language with use of VRML Pad editor and VRealm Builder. The thesis consists of the described objects in Simulink 3D Animation Library which are used for 3D Virtual scenes and connection of dynamics from Matlab/Simulink. Dynamics is created in Matlab/Simulink and connected by TCP/IP protocol to system PLC S7-1500. In the PLC is program for control of technology process. Process is visualized by HMI by Siemens AG and supplied by basic setting of connected communication and technology process.

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Kroliczek, Filip. „Matematický model parní turbíny“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221118.

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The goal of this thesis was to create a mathematical model of a steam turbine based on the data acquired by measurement, and to verify its behaviour. The first part contains research, which is supposed to introduce basic principles of the steam turbine and description of important construction parts and the possibilities of control. The second part describes the experimental identification method of least squares, used for the calculation of an ARX model of the steam turbine. Finally, the last part focuses on the program environment used for creation of the mathematical model and explanation of measured data analysis process. Furthermore this segment describes the created simulation program as well as a visualisation of the dynamic processes in the steam turbine, including the design of control.

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Paděra, Zdeněk. „Optimální řízení větrné elektrárny“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-218902.

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The thesis first provides a brief introduction to wind energy and bring in the current status of this rapidly growing industry. Further, the distribution of wind turbines, their specific and general description of the construction is described. Emphasis is placed on wind turbine control system. The first goal was to build a simulation model of wind power plant in the MATLAB / Simulink usable for subsequent overall design of control system of wind power plant. Furthermore, the analysis of the control of individual components of power station in the light of the possibility of optimizing the operation and in particular the optimization of efficiency of plant, i.e. maximization of the reached performance is performed. In the last part of this thesis structure and parameters of individual control system of plant is designed and the results are discussed.

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Bjurling, Filip. „TRANSIENT THERMAL MODEL OF A MINIBUS' CABIN AND OPTIMIZATION OF THE AIR-CONDITIONING CONTROL STRATEGIES“. Thesis, KTH, Energiteknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-133449.

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Improving the climate system of cars is important since it is the largest auxiliary load in a standard vehicle with an increase of fuel consumption by up to 20%. In Electric Vehicles (EV) the range of the car is more limited than in a fossil fueled car; furthermore there is a limited waste heat available from the EV, approximately 2-3kW at 40oC for heating and defogging in winter. The goals of this report have been part of an existing European project (ICE) where the climate system of an electric minibus is being investigated. The specific objectives of this project were to develop a radiation model and integrate it in the existing thermal model of the cabin, validating the new model with existing experimental data, including the thermal model in the overall model of the complete vehicle and to use the existing AC-model to optimize the control with the aim of decreasing the energy consumption maintaining thermal comfort inside the cabin. The radiation model uses total radiation on a horizontal surface in order to calculate the radiation hitting the different parts of the car body and windows, finally the total radiative power entering the minibus is calculated. After including these calculations into the thermal model it could be seen that the results from the model in terms of cabin temperatures fit the experimental values surprisingly well. The control of the AC-system was optimized for a hot and sunny summer day in Italy which resulted in the AC-system working very hard following that the best control strategy was to reduce only the speed of the compressor in order to save energy. Calculations show that in the Normal European Driving Cycle (NEDC) the potential energy savings of following this control strategy can result in an energy saving of the AC-system by up to 27% compared to an unregulated case, with a maintained thermal comfort resulting in 4,2% increase in autonomy.

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Zarboch, Jaromír. „Aktivní kompenzace průhybu nástroje“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230920.

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This paper deals with design of tool deflection compensation system for milling spindle C1, provided by company TOSHULIN, a.s. A simplified simulation model of the spindle supplemented by compensatory elements was built by using programs ANSYS, MD ADAMS, Matlab/Simulink. As action elements there were use three piezoactuators each controled by PID controler. Efficiency of this compensation system was verified based on performed simulations.

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Procházka, Vít. „Modelování PLC komunikačního systému pro zajištění spolehlivosti komunikace“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218558.

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The master´s thesis is focussed on principles and characteristics of Powerline Communications (PLC), practical usage possibilities and advantages and disadvantage of it. There are described mudulations and a channel encoding which are in PLC used. The main part of the thesis deals with a design of a channel as transfer function through the use of two methods, an echo model and the ABCD matrix. After finishing of the design of transfer function the model of communication was created in the Matlab-Simulink program. There were used the narrowband modulations in the model and analyzed the bit error rate of the tranfer data. In the end all results were treated graphically and evaluated.

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Zábojník, Jakub. „Využití knihovny HAM-Tools pro simulaci tepelného chování rodinného domu“. Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-231126.

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In terms of master’s thesis HAM-Tools library designed for MATLAB/Simulink was modified for the use in simulations of houses in the Czech Republic. Modified library and its parts were described in detail and tested by the simulation of the one-zone and two-zones models of the house. The simulations of models with same parameters were also realized in program TRNSYS. The corresponding results achieved in mentioned simulation tools were compared to each other. The one-zone model created by using HAM-Tools library is tested by the simulation of ventilating, heating, cooling, and sources of moisture. A demonstration of the practical use of the simulation is carried out in the thesis, namely by examining the influence of the insulation thickness on the thermal performance of the house (resp. its heat loss) on real atmospheric conditions. Among others, available resources of meteorological data are mentioned and compared to each other. The function for processing of the meteorological data to a file compatible with the HAM-Tools library was created. It was also created a material data file containing commonly used materials of building structures in the Czech Republic and their parameters.

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Dissertationen zum Thema „Matlab Simulink Model“

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