Дисертації з теми "FPGA application in Power system"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "FPGA application in Power system".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
Shahzad, Khurram. "Energy Efficient Wireless Sensor Node Architecture for Data and Computation Intensive Applications." Doctoral thesis, Mittuniversitetet, Avdelningen för elektronikkonstruktion, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-21956.
Повний текст джерелаYounes, Dina. "Využití systému zbytkových tříd pro zpracování digitálních signálů." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-233606.
Повний текст джерелаAhmed, Moin. "FPGA based morphological filters for power system protection relays." Thesis, University of Liverpool, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.539919.
Повний текст джерелаMcKeown, M. S. "A System Level Design Methodology for Power Efficient DSP on FPGA." Thesis, Queen's University Belfast, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.517537.
Повний текст джерелаZhang, Bin. "FPGA Design of a Multicore Neuromorphic Processing System." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1461694994.
Повний текст джерелаYeoman, Christina. "FPGA TO POWER SYSTEM THEORIZATION FOR A FAULT LOCATION AND SPECIFICATION ALGORITHM." UKnowledge, 2013. http://uknowledge.uky.edu/ece_etds/21.
Повний текст джерелаEkwall, Anders. "Minimering av effektförbrukning i inbyggt system med FPGA." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-177156.
Повний текст джерелаThe purpose of this thesis is to examine the possibility of reducing an embedded system's power consumption through the use of a low-power Field Programmable Gate Array (FPGA). The customer's hope was that by relocating some of the functionality from the system's Micro Controller Unit (MCU) to an FPGA, the system's MCU could remain in its most efficient power saving mode long enough to reduce the average power consumption to an acceptable level. This paper documents the development work, from initial background material studies up to the implementation and test of suggested designs in an actual FPGA, an AGLN250 from Microsemi. The thesis work has demonstrated that it is possible to reduce the power consumption of the customer's system by relocating some of the MCU functionality to an FPGA. However, due to an FPGA's architecture, care must be taken to ensure that the design is implemented in such a way that the signal activity is reduced as far as possible. Otherwise the power consumption might end up higher than expected.
Persen, Todd. "FPGA-BASED DESIGN OF A MAXIMUM-POWER-POINT TRACKING SYSTEM FOR SPACE A." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3126.
Повний текст джерелаM.S.E.E.
Department of Electrical and Computer Engineering
Engineering and Computer Science
Electrical Engineering
Milosavljevic, Ivana. "Power Electronics System Communications." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/31218.
Повний текст джерелаMaster of Science
Troullinos, George. "Application of balanced realizations to power system equivalents." Thesis, Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/14855.
Повний текст джерелаJoo, Choonshik, and Martin Stangl. "Application of Power Regenerative Boom system to excavator." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-200461.
Повний текст джерелаWu, Zhongyu. "Wide Area Analysis and Application in Power System." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/36427.
Повний текст джерелаAt last, PSS compensation optimization with a set of nonlinear differential algebraic equations (DAE) is introduced in detail. With combining the bifurcation theory of nonlinear system and the optimization theory, the optimal control of small-signal stability of power electric systems are solved. From the perspective of stability margin, global coordination of controller parameters is studied to ensure the stable operation of power grids. The main contents of this thesis include:
ï¼ 1ï¼ Models of power systems and test power electric systems. Tht5e dynamic and static models of the elements of power systems, such as generatorbbs, AVRs, PSSs, loads and FACTS controllers are presented. Method of power system linearization modeling is introduced. Three test power systems, WSCC 9-bus system, 2-area system, New England 39-bus system, are used in thesis.
ï¼ 2ï¼ Multi-objective optimizations based on bifurcation theory. The optimization models, damping control-Hopf bifurcation control, voltage control-damping control, are presented. Pareto combined with evolutionary strategy (ES) are used to solve multi-objective optimizations. Based on traditional PSS parameters optimizations, it can be formulated as a multi-objective problem, in which, two objectives should be taken into account. The minimum damping torque should be identified.
Master of Science
Figuli, Răzvan Peter [Verfasser], and J. [Akademischer Betreuer] Becker. "The Customizable Virtual FPGA: Generation, System Integration and Configuration of Application-Specific Heterogeneous FPGA Architectures / Răzvan Peter Figuli ; Betreuer: J. Becker." Karlsruhe : KIT-Bibliothek, 2018. http://d-nb.info/1154856666/34.
Повний текст джерелаChen, Zhihong. "Application of artificial neural networks to power system protection." Doctoral thesis, Universite Libre de Bruxelles, 1997. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/212176.
Повний текст джерелаJansen, John F. "Application of artificial intelligence techniques to power system design." Diss., Georgia Institute of Technology, 1985. http://hdl.handle.net/1853/14974.
Повний текст джерелаMulumba, Tshina Fa. "Application of differential evolution to power system stabilizer design." Master's thesis, University of Cape Town, 2012. http://hdl.handle.net/11427/12026.
Повний текст джерелаIncludes bibliographical references.
In recent years, many Evolutionary Algorithms (EAs) such as Genetic Algorithms (GAs) have been proposed to optimally tune the parameters of the PSS. GAs are population based search methods inspired by the mechanism of evolution and natural genetic. Despite the fact that GAs are robust and have given promising results in many applications, they still have some drawbacks. Some of these drawbacks are related to the problem of genetic drift in GA which restricts the diversity in the population. ... To cope with the above mentioned drawbacks, many variants of GAs have been proposed often tailored to a particular problem. Recently, several simpler and yet effective heuristic algorithms such as Population Based Incremental Learning (PBIL) and Differential Evolution (DE), etc., have received increasing attention.
Jensen, Craig A. "Application of computational intelligence to power system security assessment /." Thesis, Connect to this title online; UW restricted, 1999. http://hdl.handle.net/1773/5873.
Повний текст джерелаZhou, Yanzi. "Power Packet Dispatching Based on Synchronization with Features on Safety". 京都大学 (Kyoto University), 2015. http://hdl.handle.net/2433/202714.
Повний текст джерелаGARCIA, ORDÓÑEZ LUIS GUILLERMO. "High Voltage Power Supply System and Front-End DAQ on FPGA/SoC for High Energy Particle Detectors." Doctoral thesis, Università degli Studi di Trieste, 2022. http://hdl.handle.net/11368/3030919.
Повний текст джерелаHigh energy physics experiments are based on complex detectors built with novel techniques frequently configured in multichannel arrays. This complexity creates the need for custom-made related instrumentation and methods not often found in commercial devices. The research activity presented in this thesis aims at developing a distributed High Voltage Power Supply System (HVPSS) network for hybrid Micro-pattern Gaseous Detectors (MPGD) like the ones used in the RICH-1 detector of the COMPASS experiment at CERN. The hardware design was tested in several conditions including test beams at CERN in the SPS H4 beam line and with nuclear sources in the RD51 laboratory. The modular design as well as the reconfigurable capacity of the SoC-FPGA opened the possibility of using the HVPSS as a tool for other experiments. With few modifications, the system was successfully tested as a front-end Data Acquisition (DAQ) system for Water Cherenkov Detectors (WCD) in the context of indirect measurements of cosmic rays. Additional algorithms were implemented for online particle classification based on pulse-shape discrimination techniques. This thesis describes the basic concepts of the physics behind these detectors, as well as the electronics used for high energy particle detectors. It is followed by the most relevant aspects of the design process for the HVPSS and its modifications leading to the DAQ for WCDs. A description of the specific techniques developed for these applications and the most significant tests and results obtained during the research process are also presented.
Vyas, Dhaval N. "FPGA-based hardware accelerator design for performance improvement of a system-on-a-chip application." Diss., Online access via UMI:, 2005.
Знайти повний текст джерелаTidball, Kyle D. "The design of an FPGA based embedded data collection system, with application to surface profiling." Thesis, Kansas State University, 2012. http://hdl.handle.net/2097/14131.
Повний текст джерелаDepartment of Electrical and Computer Engineering
Dwight D. Day
Over the last several years, the use of Field Programmable Gate Arrays, or FPGAs, has become increasingly popular in the embedded systems field. However, FPGAs are typically used only as a coprocessor or dedicated DSP. This project proposes that an embedded system can realize a performance gain over a traditional microprocessor-based design and be made more flexible and extensible by using an FPGA as the primary processing device in the embedded system. Basing a design on an FPGA also allows new features to be much more rapidly developed and integrated into the system. This will be shown by designing an FPGA based embedded system for Surface Systems & Instruments’ Walking Profiler device. The system will include support for rotary encoders, an incline sensor for data collection, and an Ethernet protocol for communication with a Windows computer. The implementation of a sub sampling distance measuring algorithm will be used to demonstrate the tradeoffs between hardware, software, and development times.
Yilmaz, Oguz. "Participation Of Combined Cycle Power Plants To Power System Frequency Control: Modeling And Application." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607228/index.pdf.
Повний текст джерелаs grid and studies related to its improvement had been a great concern, so is the reason that main subject of my thesis became as &ldquo
Power System Frequency Control&rdquo
. Apart from system-wide global control action (secondary control)
load control loops at power plants, reserve power and its provision even at the minimum capacity generation stage, (primary control) are the fundamental concerns of this subject. The adjustment of proper amount of reserve at the power plants, and correct system response to any kind of disturbance, in the overall, are measured by the quality of the frequency behaviour of the system. A simulator that will simulate a dynamic gas turbine and its control system model, together with a combined cycle power plant load controller is the outcome of this thesis.
Pirog, Antoine. "An embedded system for the multiparametric analysis of biological signals : application to the pancreatic biosensor of insulin demand." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0836/document.
Повний текст джерелаExtracellular recording of electrical activity is a widespread technique in neurosciences, but only recently has it been applied to pancreatic islets and beta cells. The ease of use of Microelectrode Arrays (MEAs) has opened new perspectives for the electrophysiology of pancreatic cells, including screening methods for clinics and biosensor approaches for the artificial pancreas. This thesis is a contribution to the design and characterization of a hybrid biosensor composed of pancreatic cells cultured on an MEA and dedicated processing electronics. This device is the product of multi-disciplinary projects conducted at IMS (Bioelectronics group), partnered with CBMN (Cell biology and Biosensors team), both at the University of Bordeaux. Projects also involved the endocrinology service of university hospitals in Bordeaux, Montpellier, Grenoble, and Geneva.The covered projects include:- ISLET-CHIP (French ANR 2013-PRTS-0017), investigating a method of evaluating the quality of a preparation prior to its transplantation in type-I diabetic patients.- BIODIA (EU FEDER), characterizing islet electrical response to glucose, hormone, and drug stimuli for screening, cell differentiation, and closed-loop approaches.- DIAGLYC (French regional grant 2017 1R30 226), investigating the use of the hybrid biosensor as an artificial pancreas front-end sensor.The thesis tackles the biosensor in both its electronic and biological aspects, its integration in applicative experimental setups, and experimental results. It also addresses the modeling of a closed regulation loop for type-I diabetic patients.First, the electronic processing platform is described. It is a custom board performing multichannel acquisition and digital signal processing. It is built around an FPGA (Field Programmable Gate Array) that makes its processing architecture versatile and evolutive. It is capable of measuring, displaying and storing multichannel data. Computation was optimized for low-processing latencies compatible with closed-loop configurations. Both its processing algorithms and architecture are detailed.Then, experimental results using this system and its algorithms are shown to illustrate islet response to glucose, drug, and hormone stimuli. Islet activity is quantified by analyzing Action Potentials (APs), and more importantly Slow Potentials (SPs), a novel electrical signature exclusively measured on pancreatic islets. These measurements in both steady state and dynamic regime help characterize the biosensor response, but also shed light on the endogenous algorithms of islets of Langerhans.Finally, approaches for integrating the biosensor in an artificial pancreas are investigated. The measured glucose and hormone responses are modeled and simulated in a full-body glucose-insulin system. This concept is novel in that the sensor in charge of measuring insulin demand in the body is not only sensitive to glucose, but also to blood hormones
Feng, Junjie. "6.78MHz Omnidirectional Wireless Power Transfer System for Portable Devices Application." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/101839.
Повний текст джерелаDoctor of Philosophy
Wireless power transfer (WPT) is a promising solution to deliver power to a battery in a variety of applications. Due to its convenience, wireless power transfer technology with loosely coupled coils has become popular in consumer electronics. In such system, the receiving coil embedded in the receiving device picks up magnetic field induced by the transmitter coil; therefore, energy is transferred through the magnetic field and contactless charging is achieved. Thus far, the majority of the coupled coils in these systems are planar structure, and the magnetic field induced by the transmitter coil is in one direction, meaning that the energy power transfer capability degrades greatly when there is some angle misalignment between the coupled coils. To improve the charging flexibility, a three–dimensional (3D) coils structure is proposed to transfer energy in different directions, also known as in omnidirectional manner. With omnidirectional magnetic field, the charging platform can provide energy transfer in any direction; therefore, the angle alignment between the transmitter coil and receiver coil is no longer needed. In a WPT system with loosely coupled coils, the energy transfer capability suffers from weak coupling condition. To improve the power transfer capability, the electrical resonance concept between the inductor and capacitor at the power transfer frequency is adopted. A novel compensation network is proposed to form a resonant tank with the loosely coupled coils and maximize the power transfer at the operating frequency. As for the WPT system with loosely coupled coils, the energy transfer capability is also proportional to the operating frequency. Therefore, Megahertz (MHz) WPT systems are used to improve the charging spatial freedom. 6.78 MHz is selected as the system operation in AirFuel standard, a wireless charging standard for commercial electronics. The zero voltage switching (ZVS) operation of the switching devices is essential in reducing the switching loss and the switching related electromagnetic interference (EMI) issue in a MHz system; therefore, a comprehensive evaluation of ZVS condition in an omnidirectional WPT system is performed. The big hurdle of the WPT technology is the safety concern related to human exposure of electromagnetic fields (EMF). Therefore, a double layer shield structure is first applied in a three dimensional charging setup to confine the electromagnetic fields effectively. The stray field level in our charging platform is well below the safety level required by the regulation agent. Although the energy can be transferred in an omnidirectional manner in the proposed charging platform, the energy should be directed to the target loads to avoid unnecessary energy waste. Therefore, a smart detection method is proposed to detect the receiver coil's orientation and focus the energy transfer to certain direction preferred by the receiver in the setup. The energy beaming strategy greatly improves the charging speed of the charging setup.
Wang, Zhuoyang. "Application of Complex Network Theory in Power System Security Assessment." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/17367.
Повний текст джерелаMochiyama, Shiu. "Power-packet Based Control and Its Application in Distributed System." Kyoto University, 2019. http://hdl.handle.net/2433/244551.
Повний текст джерелаZheng, Rongpeng. "An FPGA Based MPPT and Monitoring System : suitable for a photovoltaic based microgrid." Thesis, Linnéuniversitetet, Institutionen för fysik och elektroteknik (IFE), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-85558.
Повний текст джерелаKar, Aditya Shankar. "Tuning of Multi-Band Power System Stabilizers in Multi-Machine Power Systems." Thesis, 2020. https://etd.iisc.ac.in/handle/2005/4777.
Повний текст джерелаThis work is carried out under the project ”Smart Energy Systems Infrastructure - Hybrid Test Bed”, supported by Fund for Improvement of Science and Technology (FIST) program, DST, India, No.SR/FST/ETII- 063/2015 (C) and (G), Project
Tsao, Chun-Ming, and 曹俊銘. "An FPGA Based Uninterruptible Power Supply System." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/00743975209337731996.
Повний текст джерела國立成功大學
電機工程學系碩博士班
94
This thesis proposes an uninterruptible power supply (UPS) system with digital and analog controller to realize this system. The DC/AC inverter uses a field-programmable gate array (FPGA) as a controller to achieve the digital pulse-width-modulation (PWM) control. Then, the verilog hardware description language (VHDL) is used to write the control procedures and ISE6.3 is served as the software development platform to perform syntax testing. Furthermore, the power factor correction (PFC) circuit, the charge circuit, and the spare power circuit are controlled by analog circuits. In addition, the FPGA is used to control the battery charge and spare power circuits. Under the normal utility-line power supply condition, the boost PFC circuit provides DC bus voltage the load and also maintain battery at the highest capacity. While the utility-line power is abnormally interrupted, the batteries supply the energy for the inverter to maintain a stable AC voltage supply for the load system. Finally, a 600W UPS system is implemented to verify the functionalities of the proposed designs.
You, Chen-po, and 游春波. "Application of FPGA for Telemetry System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/23128915866155701157.
Повний текст джерела大葉大學
電信工程學系碩士在職專班
97
A remote telemetry system consists of a computer and a field programmable gate array (FPGA) platform. This study is to design a FPGA-based architecture of the telemetry communications platform. Far end telemetry remote sensors detect signals and sent them to the computer system via data transmission media. Then, the signals are converted to PCM parallel format by means of multiplex signal processing. Finally, the FPGA platform converts the parallel PCM signals to a bit stream through frame synchronization. In order to reduce the transmission bandwidth and to concentrate power in the baseband signal to improve the transmission efficiency, the bit stream pass through a low-pass filter to form a rounded square wave. Such sine wave-like bit stream modulates the intermediate frequency (IF) and increase frequency to radio frequency (RF), and transmit to near end. In the near end, the re-distorted signal of bit stream caused by the transmission media, have to rebuild the signal to form a normal square wave. The reconstruction work is to be served by the bit synchronizer and the FPGA platform’s frame synchronizer recovers the individual measurement parameters which are measured by remote end. Then, distributors pass the measuring data to the computer for data processing and display applications. Therefore, the system is a combination of front-end of data acquisition hardware and back-end of data processing and display software of the communication platform. Although today's computers have enormous computing ability, but based on the benefit of which to reduce the time of computing process as well as the delay time due to multiplex process of computer tasking. Utilizing the advantages of FPGA’s attributes of concurrent, real-time processing capability of hardware, single task, the majority of processing units were transplanted to the FPGA platform. The FPGA efficiently performs data synchronizations and decoding operations. In addition to, using PCI interface DMA (Direct Memory Access) transfer mode can be done for high-speed IO channels between computer and FPGA.
Liao, Che-Wei, and 廖哲葦. "The Application of FPGA in Braille Display System Design." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/18675501837987239069.
Повний текст джерела淡江大學
機械與機電工程學系博士班
103
FPGA (Field Programmable Gate Array, FPGA) was used in this study to simplify the circuit design of the Braille display. With the use of the hardware description language, the Braille display control system composed of a microcontroller, logic gates, and other circuits was designed and integrated into the FPGA chip. This single chip can then be used to replace the entire circuit board to control the Braille display. FPGA provides a convenient mechanism to allow implement hardware, making the overall circuit design more flexible. During the early phase of the study, a FPGA development kit, combined with an eight slots main circuit board and eight Braille cells, served as a platform for developing the Braille display control system. After completing the design of the 8051 microprocessor core, logic modules, and other circuits, the control system successfully achieved was then loaded onto a development module. By integrating the development module, the main circuit board, and the Braille cells, the prototype of a FPGA based Braille display was accomplished. The information signals at the computer side were sent through the USB interface to the 8051 microprocessor core inside the Braille display FPGA chip, which were then converted into Braille messages. Then, parallel outputs was carried out through the logic control module made up of 3 to 8 decoder and data latch modulus to send signals to the specified Braille cells. The functional test results show that the overall system design of the FPGA based Braille display is appropriate. The design goals of hardware simplification, user-friendly operation, and maintenance convenience are all achieved.
TAI, JEN-HAO, and 戴仁豪. "Design and Implementation of a FPGA-Based Uninterruptible Power Supply System." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/71941916426258603315.
Повний текст джерела國立成功大學
電機工程學系碩博士班
93
The design and implementation of a FPGA-based uninterruptible power supply (UPS) system is proposed in this thesis. The controller for the UPS system adopts analog and digital means. The analog IC is used to control power factor correction and the FPGA digital controller is employed to control the bi-directional buck-boost converter and DC/AC inverter. Under the normal AC line operation mode, the power factor correction circuit forces the input current to follow the input voltage to achieve high power factor. The output of power factor correction circuit is then fed to the load through a DC/AC inverter and the battery is charged simultaneously via bi-directional buck-boost converter. During the utility power failure condition, the battery of voltage is boosted through bi-directional DC/DC converter and then transferred to the load by DC/AC inverter. Finally, Spartan-II-XC2S200 FPGA is employed to realize a 600VA UPS and the experimental results are performed to verify the theoretical discussion.
Chen, Young-Siang, and 陳勇翔. "Integrating FPGA Technology with Power-Line Communication for Electricity Monitoring System." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/2ce7y8.
Повний текст джерела國立虎尾科技大學
電機工程系碩士班
105
Smart home is the use of communication technology and automation control system to connect various subsystems to form a home area network (HAN). Not only integration appliances can be achieved the integration within the family, home server can also carry out the message exchange with external network to meet the demands of the power management and remote monitoring. It is found that digitalization and smart functions are the future trend of household appliances design. Thus household appliances will be integrated together to form a home area network via combining electronics, communications and other technologies. The purpose of this study is to use the existing home power line network as a ready-made transmission medium to set up a home area network without the need for additional wiring. The goal of this study is to improve the traditional shortcoming of the electric meter, and to design a smart outlet for household by taking the intelligent home network as the blueprint. The study will develop a smart outlet with measurement and communication capabilities. By using Microsoft Visual C #, a home server interface will be developed. The electricity information of the appliance will be calculated by a field programmable logic array (FPGA) system inside the smart outlet and then sent to the home server via power line communication. In this study, electricity information can be delivered in real-time via the home area network constructed by the power line communication. The client will be able to achieve the purpose of home power monitoring by a remote computer through the power line network.
Shankarrao, Jadhav Pankaj. "FPGA Implementation of Maximum Power Point Tracking Algorithm for PV System." Thesis, 2013. http://ethesis.nitrkl.ac.in/4976/1/211EC3318.pdf.
Повний текст джерелаKolluru, Venkata Ratnam. "Design and Development of FPGA based Controllers for Photovoltaic Power System." Thesis, 2016. http://ethesis.nitrkl.ac.in/8033/1/2016_PhD_Venkata_Ratna_Kolluru_510EC109.pdf.
Повний текст джерелаHsieh, Chung-Cheng, and 謝忠政. "A Dedicated AES System Application in Audio Signals Using FPGA." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/92957502156871157759.
Повний текст джерела國立臺灣師範大學
應用電子科技學系
98
For the communication system development rapidly nowadays, people communicate each other by immediate communication devices such as telephone, mobile and computer system which is the streaming system or the Skype software etc. These devices and software systems may accomplish the goal of immediate communication without time lag. It means that they provide convenience not only daily life but also business activities, military communication and government business. The first important mission is secure communication if they are involved in the secure decision levels in the business, military and government systems. The main goal of this report achieves a model of a secure immediate voice communication. The approach of achievement is by the design of analog to digital (A/D) converters in the hardware interface of peripherals. It converts analog voice signals of outside to digital voice signals. It is the basic information of encryption by the transformation from signals to digital data. Moreover, we may design a digital to analog (D/A) converters of hardware in the backend of peripherals and people can hear the variation of voices which are in the process of encryption and decryption by the end output of speakers. It uses the Advanced Encryption Standard (AES) Algorithm which is base on the architecture of 128 bits to archive the immediate voice encryption and decryption system. The system includes the direct connection of link ShiftRow, the Block RAM which is built in chipset and put all integrated information data, the execution of the SubByte, the MixColumn and the storage of the Key Expansion to reduce the space of circuit.
Lee, Jai-Ming, та 李佳明. "Application of the PACcontroller of FPGA to disign a power quality monitoring equipment". Thesis, 2011. http://ndltd.ncl.edu.tw/handle/zc49jk.
Повний текст джерела國立臺北科技大學
能源與冷凍空調工程系碩士班
99
The present paper uses FPGA and the PAC design way, develops a set of electric power quality monitor equipment, this equipment is suitable for the survey non-linear load equipment overtone pollution. The test equipment is AHU (Air Handling Unit) the frequency conversion transmission equipment. PAC power quality analysis system for the test data to verify. Finally carries on this experimental result and the Multi power monitor (PM710) gauging result the comparison. This paper uses two kind of harmonic suppression equipment (include AC reactor, active renewable power supply) to carry on the electric power overtone improvement test. Power quality monitoring equipment to measure the AHU drive, and then with harmonic suppressors, the comparison for power quality improvement, and analysis of the performance of harmonic suppressors. Then assessed the use of active renewable power equipment, and four-quadrant operation of AC motor characteristics of renewable power, renewable power to the test equipment as active harmonic suppression equipment, but also for renewable energy feedback braking power is feasible to implement.
Chiang, Chang-Jen, and 蔣昌仁. "FPGA Realization of S-Transform and Its Application to Electric Power Quality Analysis." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/91420693139764235344.
Повний текст джерела國立成功大學
電機工程學系碩博士班
94
With the increased utilization of nonlinear loads at demand side, the quality of supplying power is getting worse nowadays. Therefore, in this thesis, the main purpose lies in the field programmable gate array realization of S-transform and its application to power quality analysis. It is expected that through the time-frequency localization capability of S-transform, the time-frequency distribution of electric power disturbances can be better grasped. In the study, the virtual instrument system was also employed to visualize the disturbance variation. Meanwhile, the VLSI structure was implemented for the S-transform computation using field programmable gate array, where several modules were designed to facilitate the disturbance identification. In order to confirm the feasibility of such an approach, several disturbances including voltage interruption, voltage sag and voltage swell were all simulated and tested. Test results help support the time-frequency localization capability exhibited by the proposed approach. These outcomes can be also served as useful references for electric power engineers in the power quality improvement study.
wang, Ren-Hung, and 王仁宏. "Application of Approximate Entropy for Detection of Electric Power Signals with FPGA Realization." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/38318004347674888423.
Повний текст джерела國立成功大學
電機工程學系碩博士班
95
Following the fast development of high-tech industry, electric power quality has emerged as a very important concern. Yet, because of the increasing utilization of non-linear loads, the level of power quality is significantly affected. It is, therefore, crucial to devote to electric power quality studies nowadays. This paper was hence aimed at the embedment of the approximate entropy method in the signal detection algorithm. Moreover, the hardware realization of field-programmable gate array (FPGA) of this paper was also completed in anticipation of further improving the detection capability of power system disturbances. This method was motivated due to the signal-regularity justification capability exhibited by the approximate entropy such that when the algorithm was realized by the FPGA, the overall detection performance can be highly improved. To validate the effectiveness of this approach, the proposed method was tested through several scenarios of disturbances. Test results help confirm the feasibility and practical value of the method applied.
Chen, Zhi-Cheng, and 陳致誠. "Application of Governor-Turbine Power System Stabilizers to Improve Power System Stability." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/77702922500591939799.
Повний текст джерела明志科技大學
電機工程研究所
99
The topic that governor-turbine power system stabilizers (GPSSs) or power system stabilizers (PSSs) are added to the power system to improve the dynamic stability of power system is investigated in this thesis. The stability of a power system will be influenced by the location, number, and the parameters adjustment method of PSSs or GPSSs. The interconnection system of New England and New York of the 16 machine 68 bus is used to test and verify the feasibility of the parameters adjustment method for PSSs or GPSSs. The stability of the test system is observed by with/without GPSSs or PSSs under different system operation conditions. Other, the stability can be further improved on the test system by added the PSSs and GPSSs simultaneously. In this thesis, the frequency domain analysis method is used to design parameters of PSSs and GPSSs and observe the status of system damping, then the time domain simulation is used to prove the results. The simulation results indicate that add GPSSs or GPSSs and PSSs in the power system, which is helpful for improvement system oscillation.
Huang, Cong-Hui, and 黃琮暉. "Application of Optimal Power Flow for Power System Restoration." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/97z4ga.
Повний текст джерела國立中山大學
電機工程學系研究所
96
With the deregulation of power industry and the market competition, low cost, reliable power supply, and secured system operations are major concerns of the advanced deregulation markets. Power system protection is important for service reliability and quality assurance. To reduce the outage duration and promptly restore power services, fault section estimate has to be done effectively and accurately with fault alarms. First, an operational strategy for secondary power system restoration using Modified Grey Relational Analysis (MGRA) is proposed. The Restoration Scheme (RS) can be divided into three steps involving fault section determination, recovering process, and voltage correction process. Three GRAs are incorporated to design the overall restoration scheme. The first GRA uses network switching status to identify the fault. The second GRA combines switching states and load levels for network recovery. The third GRA uses capacitor bank control to support bus voltages. For security operation of restoration scheme, an Equivalent Current Injection (ECI) based hybrid current-power Optimal Power Flow (OPF) model with Predictor-Corrector Interior Point Algorithm (PCIPA) is used to verify the proposed scheme by off-line analysis to confirm a secure overall network operation including load-power balance, power generation limits, voltage limits, and power flow limits. The proposed method can further decompose into two sub-problems. Computer simulations were conducted with an IEEE 30-bus power system to show the effectiveness of the proposed restoration scheme and the PCIPA technique is very accurate, robust, and efficient for the modified OPF solution.
Wu, Chun-Chung, and 吳俊宗. "The Application of Combined FPGA and USB Control System for Robot." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/21810277893416986958.
Повний текст джерелаYang, Kun-Yen, and 楊坤諺. "QPSK Baseband FPGA Prototyping System Design and Implementation for Medical Diagnosis Application." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/26744310429522661010.
Повний текст джерела長庚大學
電子工程研究所
93
In this thesis, we design and implement a QPSK baseband FPGA prototyping system for Medical Diagnosis Application. The QPSK baseband FPGA prototyping system is composed of a transmitter, a receiver, a DMA controller, and a VGA generator. The transmitter consists of a serial to parallel converter, a differential encoder and a ROM-based I/Q modulator. The receiver includes a decision circuit, a parallel to serial converter, and a differential decoder. The DMA controller is composed of a parallel input serial output, a serial input parallel output and a memory read/write timing controller. After design of PCB interface, including memorial module and digital-to-analog VGA monitor interface, we obtain the FPGA prototyping system.
Pei-ChanCheng and 鄭培展. "Design and implementation of an FPGA based grid-connected 1.2kW wind power conversion system." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/15626485084062127895.
Повний текст джерела國立成功大學
電機工程學系碩博士班
98
Though renewable energy possesses the potential becoming one of most important power energy resources, its cost is high and efficiency is still low. The thesis intends to design and implement a grid-connected wind power conversion system with energy storage device. With simplified system architecture and improved maximum power point tracking (MPPT) control scheme, the proposed system has the advantages of lower cost and higher conversion efficiency. The controller used for the system is field programmable gate array (FPGA) program device developed in hardware description language (Verilog HDL). Depending on the characteristics of wind turbine generation, the MPPT control is conducted with the output power regulated by batteries. The structure of traditional bi-directional converter is improved by using only upper and lower power switches to achieve both original charging/discharging control purpose and replace the active power switch of the traditional boost converter. Not only the performance of the system is enhanced, but the cost can be reduced. Besides, a modified Three Point Weight Comparison (TPWC) Method is proposed in the thesis. It uses the variation rate of the power output as a weight-tuning control parameter. The maximum power curve can be tacked closer with higher tracking speed and efficiency than the original TPWC Method. The proposed system structure and control method have been verified on a practical 1.2kW wind-power conversion system. The experimental results show that the enhanced MPPT control and battery charging/discharging functions can be achieved for off-grid and on-grid operations, where real and reactive power output can be controlled according to system requirements.
Sahu, Gokulananda. "Design and Development of FPGA Based Controllers for DSTATCOM in Grid Connected Power System." Thesis, 2017. http://ethesis.nitrkl.ac.in/9375/1/2017_PhD_GSahu_512EC804.pdf.
Повний текст джерелаHsu, Bo-shuen, and 許博舜. "The Application of Solar Power Technology on UAV Electrical Power System." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/89032204313300903129.
Повний текст джерела輔英科技大學
環境工程與科學系碩士班
101
In this paper, a solar power generation system was developed to provide electric power to a high-performance, long-endurance UAV, which was designed for three-dimensional atmospheric measuring and monitoring missions. The solar power generation system includes solar modules and a electric power converter, to provide stable voltage and electric current to actuators and servomotors on the UAV. Therefore, the UAV can maneuver precisely and follow the commands of GPS navigation system to fly along specific routes for atmosphere probing missions. The result shows that the solar system can offer stable power outputs, which can steer the UAV to fly along specific routes for atmosphere probing missions, and the UAV can perform three-dimensional atmospheric measuring and monitoring missions.
Chiu, Hsiang-Lin, and 邱湘琳. "Buck-Boost Power converter Based MPPT system for Wind Power Application." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/95730940941578917138.
Повний текст джерела淡江大學
航空太空工程學系碩士班
103
This thesis investigates the maximum power point tracking (MPPT) for the small-scale wind power system. The wind power system contains the wind turbine, generator, and buck-boost converter. A permanent magnet synchronous generator (PMSG) is selected in this research. Two different buck-boost converters, ZETA and SEPIC, are used for this study. The MPPT is achieved through continuously adjusting the duty ratio command of the power switch of the converter, which, in turn, will control the velocity of the wind turbine to reach the maximum power point. A fuzzy-logic-based MPPT algorithm is developed for the wind power system. A MATLAB/SIMULINK based simulation model is developed to demonstrate MPPT design. Power variations due to wind speed and load changes are discusses in the thesis. A comparison of using ZETA and SEPIC converters for the MPPT function are also included in the thesis.
Liu, Ting-Kai, and 劉廷楷. "Application of PID-Neuron Controller to Twin Rotor MIMO System and FPGA Implementation." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/85037537090466493447.
Повний текст джерела國立臺灣海洋大學
通訊與導航工程系
97
This thesis presents an intelligent control scheme that utilizes a single neuron to adjust control gains of a PID controller to an experimental propeller setup called the twin rotor multi-input multi-output system (TRMS). The control objective is to make the TRMS move quickly and accurately to the desired attitudes. The pitch angle and the azimuth angle in the conditions of decoupled and cross-coupled between vertical and horizontal axes are considered. It is difficult to design a suitable controller because of the influence between two axes and nonlinear movement. For easy demonstrating the movement on the vertical plane and horizontal plane separately, the TRMS is decoupled first by the main rotor and tail rotor. Furthermore, we add some disturbances to the system, the controller still works in disturbance conditions. After successful simulations in decoupled condition, the more difficult simulations of cross-coupled condition are performed. Moreover, we also add some disturbances into the cross-coupled condition, the controller is still good enough in the condition with disturbances. The Simulation results show that the new approach can improve attitude tracking performance. For real-time control, the Xilinx Spartan II SP200 FPGA (Field Programmable Gate Array) is employed to construct a hardware-in-the-loop system. We built a linear-like PID controller in coupled condition through writing VHDL on this FPGA. Performance of the hardware controller is demonstrated by real-time experiments.
Huang, Chihung, and 黃智苰. "An Application Of FPGA Board In The Inverted Pendulum System With Time Delay." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/01975196603950484877.
Повний текст джерела義守大學
電機工程學系
100
The inverted pendulum system is a nonlinear system with unstable and stable equilibrium points. Analysis and control such a system is a challenging task. In this thesis, pole placement method and PD controller design are provided to control an inverted pendulum system without/with induced time delay, respectively. In order to control it efficiently, we also have a trial to combine the inverted pendulum system with an FPGA board being a functional mechanism, after several dynamics analysis and simulations.
Liu, Shih-Chun, and 劉時均. "FPGA Control of a Single-Phase Distributed Power Generation System for Current and Voltage Regulation." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/58824858380420626681.
Повний текст джерела國立交通大學
電控工程研究所
104
Compared with the L-filter, the LCL-filter is more suitable for high-power, low-switching-frequency applications due to its better attenuation characteristics on high frequencies. However, control systems involving LCL-filters are inevitably more complicated. A cascaded multiple-loop control architecture is developed to not only damp the LCL resonance but also to achieve lower harmonic distortion of the grid-side currents. The method has advantages of easy design, implementation and system robustness. The control system consists of three cascaded control loops, an inner current, an inner voltage and an outer current loop, with the inner loop providing fast dynamic compensation for system disturbance and improving stability and the outer one ensuring precise steady-state performance. A relative low switching frequency (12kHz), which is used due to the current controller is designed for higher power applications, will leads to higher current ripple ratio (30%). However, by applying the conventional single-sampling strategy to feedback the average current under this condition, the performances of sampling accuracy and noise rejection will be poor. Therefore, a multiple-sampling strategy, which can increase the sampling accuracy with good noise rejection capability is developed to detect the average current under the condition of large ripple current. The average value is extracted by detecting the inductor current 16 times in one switching cycle (192kHz) and calculating the sum and average. By using predictive control technique with multiple feedback variables both good dynamic response and low total harmonic distortion can be achieved. The proposed design method can not only be applied to current regulation for grid-inverter with LCL-filter but also be used to the current regulation in grid-connected mode with L-filter and voltage regulation in stand-alone mode with lower current and voltage harmonic distortion. In this thesis, a 3.2% current THD of the LCL grid-inverter can be achieved with the total inductance reduced by 5 times smaller then the L-filter one. The FPGA controller has been realized by using a mixed-signal FPGA PSOC controller, the SmartFusion (A2F500), from Microsemi. The proposed method is validated by experiment with a prototype 3kW single-phase full-bridge inverter.