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Dissertations / Theses on the topic 'Brushless DC electric motor'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Miller, Joel Christopher. "Modulating dynamic stiffness of a direct-drive brushless linear DC motor." Thesis, Georgia Institute of Technology, 1998. http://hdl.handle.net/1853/16103.

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2

Xia, Wei. "A new phase decoupling permanent magnet brushless DC motor and its control /." Hong Kong : University of Hong Kong, 1996. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19667747.

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3

Dibua, Imoukhuede Tim Odion. "Development of a high power density motor for aircraft propulsion." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4933.

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Electric propulsion has been studied for a long time. Most of the electrically propelled vehicles that have been developed however have been ground vehicles. Recent research by NASA has promoted the development of electric aircraft. Most aircraft are currently powered by heavy gas turbine engines that require fueling. The development of electric motors to replace gas turbines would be a big step towards accomplishing more efficient aircraft propulsion. The primary objective of this research extends previous work by developing a high power density motor for aircraft propulsion. This design is n

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4

夏偉 and Wei Xia. "A new phase decoupling permanent magnet brushless DC motor and its control." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1996. http://hub.hku.hk/bib/B31235426.

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5

Yong, Wang. "A new polygonal-winding permanent magnet brushless DC motor drive for electric vehicles." Click to view the E-thesis via HKUTO, 2004. http://sunzi.lib.hku.hk/HKUTO/record/B38628739.

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6

Wang, Yong, and 王勇. "A new polygonal-winding permanent magnet brushless DC motor drive for electric vehicles." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B38628739.

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7

Abed, Abed. "Fundamental control aspects of the brushless DC motor." Thesis, University of Leeds, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.277513.

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8

Gan, Jinyun, and 干金云. "Design, analysis and control of multiphase flux regulated permanent magnet brushless DC motor drives." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31245304.

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9

Karunadasa, J. P. "Analysis and enhanced control of a brushless DC motor." Thesis, University of Manchester, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240534.

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10

Al-Hadithi, Khalid Salih Mohammad. "Mathematical modelling of permanent-magnet brushless DC motor drives." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/7302.

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Brushless dc motor drives have become increasingly popular, following recent developments in rare-earth permanent-magnet materials and the semiconductor devices used to control the stator input power and to sense the rotor position. They are now frequently used in applications such as flight control systems and robot actuators, and for drives which require high reliability, long life, little maintenance and a high torque-to-weight ratio. In many motor drives the presence of torque and speed ripples, especially at low speed, is extremely undesirable. The mathematical model developed in this the

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11

D'Erasmo, Stefano. "Modellizzazione dinamica di un motore brushless DC per uso propulsivo su droni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2014. http://amslaurea.unibo.it/6978/.

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Studio e realizzazione di un modello dinamico, in Simulink, del sistema propulsivo di un aeromodello, dotato di un autopilota e di un'elettronica di bordo. Tali caratteristiche consentono al drone di effettuare delle operazioni di volo in piena autonomia.

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12

Davis, Eli Marc. "Design and performance evaluation of an electric go-kart and custom permanent magnet brushless DC motor." Thesis, Massachusetts Institute of Technology, 2012. http://hdl.handle.net/1721.1/74438.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2012.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 23).<br>This undergraduate thesis documents the design considerations and specifications of building a personal battery-powered go-kart. This includes designing and building a custom brushless DC motor for use in the drivetrain. Details of the fabrication and assembly processes are included for reference. The motor was not finished in time to be able to be tested, but the performance of the go-kart has been estimated th

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13

Samaranayake, Lilantha. "Distributed control of electric drives via Ehernet." Licentiate thesis, KTH, Electrical Systems, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1656.

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<p>This report presents the work carried out aiming towardsdistributed control of electric drives through a networkcommunication medium with temporal constraints, i.e, Ethernet.A general analysis on time delayed systems is carried out,using state space representation of systems in the discretetime domain. The effect of input time delays is identified andis used in the preceding controller designs. The main hardwareapplication focused in this study is a Brushless DC servomotor, whose speed control loop is closed via a 10 MbpsSwitched Ethernet network. The speed control loop, which isapproximate

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14

Vijayraghavan, Praveen. "Design of Switched Reluctance Motors and Development of a Universal Controller for Switched Reluctance and Permanent Magnet Brushless DC Motor Drives." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/29799.

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Switched Reluctance Machines (SRMs) are receiving significant attention from industries in the last decade. They are extremely inexpensive, reliable and weigh less than other machines of comparable power outputs. Although the design principles of the machine are available as a concatenation of many different sources, the need for a unified, step-by-step design procedure from first principles of electromagnetics is an absolute requirement. This dissertation discusses a procedure that can be applied by engineers with a basic background in electromagnetics. Subsequent to the design of the machine

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15

Jenkins, James Scott. "Operation of a brushless DC drive for application in hybrid electric vehicles." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Thesis_JJenkins_09007dcc8032dbaa.pdf.

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Thesis (M.S.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed October 25, 2007) Includes bibliographical references (p. 61-62).

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16

Kårefjärd, Viktor, and David Stridfeldt. "Electric Self Propelled Shoe : A shoe mountable last mile personal transportation vehicle." Thesis, KTH, Mekatronik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-296309.

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The purpose of this work was to investigate how a last mile-transport vehicle can be constructed around a shoe. The prototype, which is controlled without a handheld controller, was designed to propel an adult forward with the use of an electric driveline. The user can easily stop driving, and instead walk short distances without removing the prototype. Research questions have been answered regarding how the battery and motor can be configured to reach a top speedof 15 km/h and a range of 3 km. In addition, answers were given as to how a user should control the vehicle’s speed in a safe and si

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17

Thulin, Marlene. "LabView-baserat produktionstest för borstlösa trefasiga likströmsmotorer." Thesis, KTH, Hälsoinformatik och logistik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-253033.

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Testning är en viktig del i tillverkningskedjan för att säkerställa kvalitet och funktion hos elektronikprodukter, och utförs ofta på flera nivåer innan den färdiga produkten lämnar fabriken. Produktionstester är rutinmässiga tester som tillämpas under masstillverkning och vid utformning av dessa måste tidseffektivitet prioriteras för att minimera negativ inverkan på produktionstakten. I detta projekt överfördes ett produktionstest för färdigmonterade borstlösa DC-motorer med drivelektronik till en ny testutrustning hos företaget Allied Motion. Testet skulle moderniseras och införas i företage

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18

Müller, Luke, and Kasper Sjöström. "Automatic Torque Control for Bicycle Driven Brushless DC (BLDC) Generator." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-44845.

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This work was carried out on behalf of Science Safari. Science Safari wants to create a product that facilitates the understanding of how much physical work is required to create electrical energy. This is done by cranking the pedals of a bicycle. The purpose of this work is to create a control unit that keeps the torque required to crank the pedals close to constant. The torque can be kept constant by creating a variable load for the generator, in this case, a pulse modulated JFET is used. The output of the current sensor and the Hall-effect sensor are used to calculate the required resistanc

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19

Green, Clayton R. "MODELING AND TEST OF THE EFFICIENCY OF ELECTRONIC SPEED CONTROLLERS FOR BRUSHLESS DC MOTORS." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1459.

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Small electric uninhabited aerial vehicles (UAV) represent a rapidly expanding market requiring optimization in both efficiency and weight; efficiency is critical during cruise or loiter where the vehicle operates at part power for up to 99% of the mission time. Of the four components (battery, motor, propeller, and electronic speed controller (ESC)) of the electric propulsion system used in small UAVs, the ESC has no accepted performance model and almost no published performance data. To collect performance data, instrumentation was developed to measure electrical power in and out of the ESC

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20

Monteiro, José Roberto Boffino de Almeida. "Estratégias de acionamento e controle em máquinas CA de ímã permanente com fluxo não senoidal." Universidade de São Paulo, 1997. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-22102015-141534/.

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O objetivo desse trabalho é o estudo e a análise do desempenho de máquinas brushless com ímã permanente no rotor, com fluxo de entreferro não senoidal. São consideradas máquinas brushless com ímã permanente na superfície do rotor. Três modelos matemáticos são considerados: o modelo por fase de estator, o modelo vetorial e o modelo velocidade-tensão de segunda ordem. Máquinas com diferentes tipos de enrolamento de estator são comparadas, incluindo as máquinas síncronas com ímã permanente no rotor (com a densidade dos enrolamentos distribuída de forma senoidal no estator). Os resultados para o t

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21

Новіков, О. О. "Система керування рухомої платформи, як елемента складської логістики". Master's thesis, Сумський державний університет, 2020. https://essuir.sumdu.edu.ua/handle/123456789/81307.

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В роботі було проведено огляд кінематик для створення всенаправленої рухомої платформи в складській логістиці. Була розроблена кінематична модель, а також виведене рівняння руху платформи. Також була проаналізована ефективність роботи управління з прогнозуючими моделями (MPC) та пропорційно-інтегрально-диференціальним регулятором (PID) в системі з динамічно-змінюваним навантаженням.

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22

Monteiro, José Roberto Boffino de Almeida. "Transformação dq não senoidal para máquinas síncronas com imã permanente no rotor." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-24092015-135013/.

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O presente trabalho apresenta uma transformação dq não senoidal e sua aplicação em máquinas síncronas com ímã permanente na superfície do rotor (MSIP) e forma de onda de FEM não senoidal. O modelo resultante da aplicação dessa transformação permite o controle direto do torque eletromagnético, permitindo reduzir as ondulações do torque produzido nesse tipo de máquina. A redução dessas ondulações em MSIPs não senoidais possibilita que esse tipo de máquina seja empregado em aplicações onde somente MSIPs senoidais, que possuem custo mais elevado, poderiam ser usadas. Simulações e resultados prátic

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23

Valle, Rodolfo Lacerda. "Acionamento de um motor síncrono de ímãs permanentes sem escovas visando aplicação em veículos elétricos." Universidade Federal de Juiz de Fora (UFJF), 2013. https://repositorio.ufjf.br/jspui/handle/ufjf/4161.

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24

Úlehla, Martin. "Mikrokontrolery pro BLDC motory." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2008. http://www.nusl.cz/ntk/nusl-235900.

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Master thesis deals with solutions of BLDC motors (brushless DC motors) control. It analyses microcontrollers and electronic components suitable for BLDC motor controllers under conditions of serial production. It mentions some common problems in practical aplication like dynamic motor braking, synchronization, recuperation and constant revolutions.

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25

Chen, Hanling. "AVERAGE-VALUE MODELING OF HYSTERESIS CURRENT CONTROL IN POWER ELECTRONICS." UKnowledge, 2015. http://uknowledge.uky.edu/ece_etds/78.

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Hysteresis current control has been widely used in power electronics with the advantages of fast dynamic response under parameter, line and load variation and ensured stability. However, a main disadvantage of hysteresis current control is the uncertain and varying switching frequency which makes it difficult to form an average-value model. The changing switching frequency and unspecified switching duty cycle make conventional average-value models based on PWM control difficult to apply directly to converters that are controlled by hysteresis current control. In this work, a new method for ave

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26

Liu, Xiao. "IMPROVEMENTS IN INVERTER MODELING AND CONTROL." UKnowledge, 2017. http://uknowledge.uky.edu/ece_etds/104.

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In this dissertation, the generalized averaging method models for inverters, reactive power control methods for photovoltaic inverters, and a noise immunity improvement for hybrid position observers for brushless dc motor drives are studied. Models of inverters and other converters based on averaging have been widely used in numerous simulation applications. Generalized averaging can be applied to model both average and switching behavior of converters while retaining the faster run times associated with average-value models. Herein, generalized average models for single- and three-phase pulse

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27

Sahin, Ilker. "Measurement Of Brushless Dc Motor Characteristics And Parameters And Brushless Dc Motor Design." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/3/12611481/index.pdf.

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The permanent magnet motors have become essential parts of modern motor drives recently because need for high efficiency and accurate dynamic performance arose in the industry. Some of the advantages they possess over other types of electric motors include higher torque density, higher efficiency due to absence of losses caused by field excitation, almost unity power factor, and almost maintenance free construction. With increasing need for specialized PM motors for different purposes and areas, much effort has also gone to design methodologies. In this thesis a design model is developed for s

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28

Mohammed, Omar. "A Study of Control Systems of Brushless DC Motors." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1399046747.

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29

Ozturk, Salih Baris. "Direct torque control of permanent magnet synchronous motors with non-sinusoidal back-EMF." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2728.

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30

Ismael, Adel. "Microprocessor-controlled brushless DC linear stepping motor." Thesis, Cardiff University, 2018. http://orca.cf.ac.uk/119080/.

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Presently, there is a rapidly growing research interest for an efficient, high thrust density and high thrust to input power electrical linear machine. However, only limited work has been carried out in terms of the development of brushless DC linear motors (BDCLM). Focusing on this research gap which presently exist in this field, this thesis makes the development of the BDCLM the research objective, in order to produce a large thrust to input power, compared to the already existing designs. The motor is designed in such way that the motor core accommodates twenty-four independent multi-layer

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31

Лаженко, А. С. "Brushless DC motor: construction and working principle." Thesis, Київський національний університет технологій та дизайну, 2018. https://er.knutd.edu.ua/handle/123456789/10712.

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32

Khopkar, Rahul Vijaykumar. "DC-DC converter current source fed naturally commutated brushless DC motor drive." Texas A&M University, 2003. http://hdl.handle.net/1969.1/1257.

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The aim of this work is to reduce the cost and size of a brushless dc motor (BLDC) drive as well as increase the reliability and ruggedness of that drive. Traditional BLDC drives use Voltage Source Inverters (VSI) that utilize hard switching, thereby generating switching losses and entail the use of large heatsinks. VSI needs a huge dc link capacitor that is inherently unreliable and is one of the most expensive components of a drive. Hence, a Current Source Inverter (CSI) is used to replace the hard switchings by natural turn-off, thereby eliminating the heatsinks as well as the large dc link

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33

Allan, Malcolm. "Hardware/software strategies for the DC brushless motor." Thesis, Glasgow Caledonian University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282722.

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Tam, C. H. "Design and development of axial-field air-cored brushless DC motors." Thesis, University of Warwick, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.370229.

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35

Cai, Bo-jhang, and 蔡伯章. "Control and Design of Brushless DC Motor for Electric Motorcycle." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/28414935087480824396.

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碩士<br>逢甲大學<br>產業研發碩士班<br>96<br>Air pollution, especially emitted by internal combustion engine like automobile and motorcycle, has been taking more and more attention due to environmental protection consciousness unceasingly gained ground at present. Therefore, non- pollution electric-powered vehicle is the future star. This study contributes the new design electric-powered motorcycle brushless DC motor control circuit optimized by lead acid battery characteristic. This study applies a control module composed of control chips, logical gate circuit, Operational Amplifier (OP) with protection

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Hsin, Wen-Tung, and 辛文東. "A HIGH PERFORMANCE BRUSHLESS DC MOTOR DRIVING SYSTEM FOR AN ELECTRIC MOTORCYCLE." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/92758063206537958999.

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碩士<br>大同大學<br>電機工程研究所<br>89<br>A new designed high performance Brushless DC Motor driving system is proposed. This system involves the analysis and implementation of the high speed torque compensation, flux-weakening control and regenerative braking energy recovery techniques that would enhance the maximum velocity and increase the drive range of the electric motorcycle. In this thesis, a hardware scheme consists of 8XC196MH microprocessor, suitable peripheral circuits, and the proper man-machine interface software are established for experimentation. In addition, in order to realiz

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Chuang, Jyh-Yu, and 莊智宇. "Brushless DC Motor Driving System of Electrical Vehicle." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/3a94ku.

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碩士<br>中原大學<br>電機工程研究所<br>102<br>In this thesis, a drive system of the electrical vehicle is designed and investigated. It is used to achieve power and speed control of a brushless DC motor. The system consists of a control unit and drive module which combines a drive circuit. The drive module comprises driver control circuit based on ARM Cortex-M0 microprocessor STM32F030C8 as control unit, hall sensors and peripheral interface electric circuit. The control unit program includes brushless DC motor control theory and interface technologies. By modifying the software of the system, the proposed

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S, Rambabu. "Modeling and control of a brushless DC motor." Thesis, 2007. http://ethesis.nitrkl.ac.in/4304/1/Modeling_and_control_of_a_brushless_DC_motor.pdf.

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Permanent magnet brushless DC motors (PMBLDC) find wide applications in industries due to their high power density and ease of control. These motors are generally controlled using a three phase power semiconductor bridge. For starting and the providing proper commutation sequence to turn on the power devices in the inverter bridge the rotor position sensors required. Based on the rotor position, the power devices are commutated sequentially every 60 degrees. To achieve desired level of performance the motor requires suitable speed controllers. In case of permanent magnet motors, usually speed

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Ciou, Fong-Syong, and 邱鳳雄. "Study of Driving and Regenerative Braking of Brushless DC Motor for Electric Motorcycle." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/29049048797998518730.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>97<br>In recent years, with the environmental consciousness enhanced, the development of electric vehicles is gradually taken seriously. However, the traveling range of the electric vehicles can not compete with the ability of the existing internal combustion engine vehicles, which is one of the most important factors of hindering the development of electric vehicle. Therefore, how to increase the traveling range of electric motorcycle is valuable to study. The common regenerative braking method is to add a bi-directional buck-boost converter to the controller of t

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Tawadros, Markos. "Sensorless control of brushless DC motors." Thesis, 2012. http://handle.uws.edu.au:8081/1959.7/531742.

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This thesis presents novel sensorless control techniques applied to six-stepped controlled brushless permanent magnet motors (BPMM). Such motors are becoming appealing for many industrial applications and consumer appliances. This is due to their simple speed and torque control, compact size, high efficiency and reliability. It is essential that the rotor position is known in order for BPMMS to operate. The commutation instances take place at 300 electrical for torque optimisation. The position is detected by physical sensors such as Hall Effect sensors, encoders or resolvers. Sensors increase

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Chiu, Chih-Hsien, and 邱志賢. "Parameter Optimization of Brushless DC Motor in Electric Scooter System with Meinung Paper Umbrella." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/71070785225603862311.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程所<br>98<br>This article focused on the optimized design of Meinung paper umbrella brushless DC motor in electric scooter system , In addition, the use of motor Ansoft design software company RMxprt preliminary design in order to quickly obtain a better design size and performance analysis of the geometry of this motor into the finite element analysis of Maxwell 2D software for the dynamic performance of the motor, as well as the application of fuzzy Taguchi method to design a wide range of quality while meeting the best characteristics of the parameters in order to

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42

Chen, Kwan-bo, and 陳冠博. "Analysis of Brushless DC Motor for Electric Vehicle Systems by using Design of Experiments." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/83291055449209342147.

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碩士<br>國立高雄第一科技大學<br>機械與自動化工程所<br>95<br>This thesis aims at the study on a brushless DC motor (BLDCM) applied to a vehicle by means of the finite element method (FEM). The efficiency and operation properties of the BLDCM will be affected when altered the geometry of the BLDCM. Therefore, the FEM will be employed to discuss the magnetostatic analysis and transient properties of the BLDCM in this thesis. More specifically, the electromagnetic torque and the cogging torque of the BLDCM will be assessed when altered the geometries such as the alterations of the thickness of the permanent magnet,

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Huang, Jing-Jia, and 黃勁嘉. "Design of Smart Control for Small Capacity DC Brushless Motor used in Electric Fan." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/7hwn9j.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>106<br>Nowadays, motors are the most widely used in various electrical equipment including modern 3C products, appliances, and industrial mechanical rotating machines. The energy consumption of motors is also the highest ratio among all electrical loads. Therefore, giving motors appropriate effective and smart control functions can improve products' performance and energy efficiency. Brushless DC motors have many advantages such as smaller dimension and volume, higher efficiency, longer life time and lower noise. It is urgent need and very suitable to develop a smart

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Wang, Yi-Siang, and 王藝翔. "Design and Implement the controller of an Electric Vehicle Driven by the Brushless DC Motor." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/qest2v.

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碩士<br>崑山科技大學<br>電子工程研究所<br>97<br>Taiwan now is an aged country. Besides, the prosperous development of industry has changed compatriotic life style. The abnormal habits, diet, and less exercise cause many chronic illnesses, functional handicaps and rehabilitations. There is a great necessity and development in Electric Vehicles regarding for the aged and patients. In last few years, with the government’s support, the domestic medical supplies industry developed prosperously. Especially, the development of Electric Vehicle has played an important role in international competition. Above all,

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Chen, Huang-Yu, and 陳皇佑. "A High-Performance Torque Control Design Applied to a Brushless DC Motor for Electric Vehicles." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/42415050468715976476.

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碩士<br>國立成功大學<br>機械工程學系<br>87<br>This thesis presents a high-performance torque control system applied to brushless motors for electric vehicles, with the aim of achieving output characteristics similar to that of Continuously Variable Transmissions. Three compensated methods are used in the proposed torque controller, the first of these methods is the phase advance control, which controls the stator phase currents to in-phase the back EMF. The second method is back EMF compensation, which can avoid the disturbance of the back EMF. The third method uses current loop gain compensation, which var

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Liu, Yu Hung, and 劉育宏. "Digital Design and Implementation of A DSP-Based Brushless DC Motor Driving System for Electric Vehicles." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/20965442327818329713.

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碩士<br>長庚大學<br>電機工程學研究所<br>97<br>The thesis designs and implements a TMS320F2812 -based 22kW class brushless DC (BLDC) motor driving system for electric vehicles (EVs). First, use of the ADVISOR (Advanced Vehicle Simulator) program simulates the operational characteristics of a BLDC motor in electric vehicles. Second, a driving system for the BLDC motor is constructed. Then, a 22 kW BLDC motor driving system with a TMS320F2812-based system is described. Accordingly, a hardware prototype is built. Finally, experimental results verify the functions of the 22 kW BLDC motor driving system.

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Yeh, Tzung-Shian, and 葉宗憲. "The Design of a Low cost and high performance Brushless DC motor controller for electric vehicle." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/69849032073687581295.

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碩士<br>義守大學<br>電子工程學系碩士班<br>95<br>In current stage, there are three kinds of motor used by electric vehicle: brush dc motor, brushless dc motor and switched reluctance motor. Since switched reluctance motor control difficultly, it is much less popular than brush dc motor and brushless dc motor. Because of lower cost, easy to control and control stability, brush dc motor is widely used in building electric vehicle. However, brush dc motor had become more inadequate in later development due to short operating life. On the contrary, brushless dc motor has characters such as high efficiency, excell

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Lu, Jian-han, and 呂建漢. "Sensorless Variable Speed Control of Brushless DC Motors for Electric Unmanned Helicopters." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/15478281192700190107.

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碩士<br>國立雲林科技大學<br>電機工程系碩士班<br>95<br>Unmanned helicopters driven by oil engines have some drawbacks than those driven by electric motors such as high-cost maintenance, oil leak and shaking etc. Electric unmanned helicopters, which use brushless DC motors as power driving source of propellers, have become more and more popular nowadays because they are cost-effective and easier to maneuver. Conventionally, brushless DC Motors are driven by using hall sensors and non-contact commutation circuits and have the merits of low noise, long life, high efficiency, and easy maintenance. Instead of using h

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Su, Te-Sheng, and 蘇德勝. "Development of High Power 20kW Brushless DC Motor Driver and Application of Novel Parallel Hybrid Electric Vehicles." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/79574176948205971397.

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碩士<br>大葉大學<br>機電自動化研究所碩士班<br>96<br>In recent years, as the environmental protection and global warming has risen, it is important to reduce the pollution of environment. According to The World Energy Council (WEC) estimation, the petroleum of world will be use up in 40-50 year. A solution way is necessary to develop not the sole internal combustion engine (ICE) of compound vehicle. Thus, hybrid electric vehicles (HEVs) are recognized as one of the most promising technologies in significantly reducing the petroleum fuel consumption, and toxic and emissions of greenhouse gases. Based on the

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Dakora, Jonas-Yelee. "Design of a three phase four quadrant variable speed drive for permanent magnet brushless DC motors." Thesis, 2016. http://hdl.handle.net/10321/1501.

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Submitted in fulfillment of the requirements for the Master of Engineering Degree, Department of Electronic Engineering, Durban University of Technology, Durban, South Africa, 2016.<br>The aim of this research project is to design a three phase four quadrant variable speed drive (VSD) for a permanent magnet brushless direct current motor (PMBLDC) that can be applied to an electric bicycle (e-bike). The design is confined to PMBLDC motors with a maximum power rating of 1.5kW. The speed controller operates in current mode at a maximum voltage and current rating of 50V and 30A, respectively. The

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