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Dissertations / Theses on the topic 'Development of brushless DC (BLDC)'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Gambetta, Daniele Morco. "Sensorless technique for BLDC motors." University of Southern Queensland, Faculty of Engineering and Surveying, 2006. http://eprints.usq.edu.au/archive/00001427/.

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Commutation is a fundamental feature of all DC machines. In conventional DC machines the commutation function is performed by the commutator and brushes. These act as both position sensors and switches. The mechanical commutator has obvious disadvantages. Overcoming those disadvantages has been a major reason behind the development of brushless DC (BLDC) machines. In brushless DC machines commutation is performed by power electronic devices forming part of an inverter bridge. However, switching of the power electronic devices has to be synchronised with rotor position. Position sensing is ther

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2

Sauthier, François. "Nouvelle topologie de commande d'une machine brushless DC (BLDC) /." Sion, 2008. http://doc.rero.ch/record/12809?ln=fr.

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3

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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4

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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5

Shao, Jianwen. "Direct Back EMF Detection Method for Sensorless Brushless DC (BLDC) Motor Drives." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/35065.

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Brushlesss dc (BLDC) motors and their drives are penetrating the market of home appliances, HVAC industry, and automotive applications in recent years because of their high efficiency, silent operation, compact form, reliability, and low maintenance. Traditionally, BLDC motors are commutated in six-step pattern with commutation controlled by position sensors. To reduce cost and complexity of the drive system, sensorless drive is preferred. The existing sensorless control scheme with the conventional back EMF sensing based on motor neutral voltage for BLDC has certain drawbacks, which limit it

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6

Ruhás, Sándor. "Řízení BLDC motoru pomocí LabView FPGA." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376920.

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This thesis focuses on BLDC motor control algorithms with model based design approach. Models and control algorithms were programmed in LabView, the NI MyRIO was used as a hardware platform. For hall-sensor feedback controlled application an already finished power inverter was used from a Honeywell rotary actuator. For sensor-less motor control an indirect sensing of BEMF signal is applied using motor phase current measurement. The time-critical parts of the algorithms are programmed for FPGA, the non-time-critical parts are programmed for LabView Real-Time module.

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Sova, Václav. "Využití FPGA pro řízení a modelování BLDC motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2013. http://www.nusl.cz/ntk/nusl-230937.

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Thesis deals with the challenges in the field of BLDC motors control with the utilization of Field Programmable Gate Arrays (FPGA). Using the modular dSPACE hardware with the FPGA board, these issues are solved: sensored and sensorless control, real-time simulation of BLDC motor and control of BLDC motor in degraded mode. FPGA design is made using the System Generator for DSP from Xilinx. The side effect of work is to show that with the expansion of high-level tools for FPGA design, the implementation of algorithms for FPGA is relatively quick and efficient and does not require years of experi

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8

Salgues, Christophe Xavier. "Torque Control of a Permanent Magnet Brushless DC Machine for a Hybrid Electric Vehicle." University of Akron / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=akron1216920443.

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9

Lee, Hyung-Woo. "Advanced control for power density maximization of the brushless DC generator." Diss., Texas A&M University, 2003. http://hdl.handle.net/1969.1/1587.

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This dissertation proposes a novel control technique for power density maximization of the brushless DC (BLDC) generator which is a nonsinusoidal power supply system. In a generator of given rating, the weight and size of the system affect the fuel consumption directly, therefore power density is one of the most important issues in a stand-alone generator. Conventional rectification methods cannot achieve the maximum power possible because of a distorted or unsuitable current waveform. The optimal current waveform for maximizing power density and minimizing machine size and weight in a nonsinu

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10

Uygur, Serdar. "An Fpga Based Bldc Motor Control System." Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12614104/index.pdf.

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In this thesis, position and current control systems for a brushless DC (Direct Current) motor are designed and integrated into one FPGA (Field Programmable Gate Array) chip. Experimental results are obtained by driving the brushless DC motors of Control Actuation System of a guided missile. Because of their high performance, brushless DC motors are widely used in Control Actuation Systems of guided missiles. In order to control the motor torque, current controller is designed and implemented in the FPGA. Position controller is designed to fulfill the position commands. A soft processor in the

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11

Gonella, Mário Celso. "Acionamento e controle sensorless para motores brushless DC aplicados a compressores herméticos para refrigeração doméstica." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/18/18153/tde-24102006-212123/.

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O objetivo deste trabalho é desenvolver a simulação de um sistema de controle de velocidade para compressores herméticos domésticos utilizando motores brushless DC controlados por uma estratégia do tipo sensorless. O ponto central é o desenvolvimento da simulação global de controle a partir de um modelo adequado do motor BLDC com base no programa Matlab/Simulink. São abordadas algumas estratégias de controle sensorless além de alguns métodos de partida para este tipo de máquina. As estratégias de controle e partida propostas para o trabalho são analisadas detalhadamente e simuladas através do

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12

Križan, Jakub. "Bezsensorové řízení BLDC motoru." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230302.

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This thesis is focused on problematics of control of brushless DC motor in the sensor and also in the sensorless mode. Also it interprets possibilities of BLDC motor control with one faulty sensor and derivation and simulation of mathematical model. First part mentions options of rotor position sensing as well as existing methods of sensorless BLDC motor control. Second part describes control algorithms of sensor and sensorless motor control realised on device dSPACE and also realisation of faulty sensor control algorithm. Third part deals with derivation of mathematical model, its realisation

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13

Baratieri, Cassio Luciano. "Controle de velocidade sensorless de motores brushless DC submetidos a variações periódicas de carga." Universidade Federal de Santa Maria, 2011. http://repositorio.ufsm.br/handle/1/8493.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This master thesis presents a sensorless speed control drive of Brushless DC motors used in reciprocating compressors. These compressors cause periodic load torque variations on the motor, consequently mechanical vibrations and acoustic noise are presented as well. As a result, a discrete speed controller based on the internal model principle is proposed. This controller aims to track the speed reference and to reduce the periodic torque disturbances caused by the compressor. The proposed controller consists of a rotor position and

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14

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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15

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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16

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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17

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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18

Ludva, Stanislav. "Návrh a výroba modulu pro řízení motorů na nízká napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2017. http://www.nusl.cz/ntk/nusl-317187.

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The aim of this diploma thesis is to design and implement a universal driver unit designed to control electric motors of small voltages – electronically commutated, DC and stepper. This involves creating topology and selecting appropriate components based on the required parameters. It also includes the manufacture of printed circuit board (PCB), soldering of the components and programming of the necessary functions. Thesis contains the analysis of three selected types of motors – the principle of operation, wiring and control. Testing of the control unit was performed at the end of the work.

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19

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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20

Bureš, Petr. "Návrh synchronního stroje s permanentními magnety." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-376906.

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Given today’s trend with environment being very important, there has been an ongoing attempt in the rotating machine industry to create machines with highest efficiency possible. And so, permanent magnet synchronous machines represent types of machine with very high efficiency and are gradually replacing other machines in many applications. This work deals with familiarization of the properties of permanent magnet synchronous motor as well as typical design choices. The main focus of this work is the design of permanent magnet EC motor and following comparison of results obtained from analytic

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21

Zdařil, Tomáš. "Regulátor otáček pro střídavé motory." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219772.

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The goal of the thesis was to design and create one-way speed controler for brushless DC motors, that is used in air modeling. The circuit is controlled by the Atmel AVR. As power unit for motor is used Li–pol accumulator. The controller is equipped with BEC to power the receiver and allows monitoring of current consumption and voltage on the accumulator. Measured data can be upload to a PC where they can be displayed by RegulatorPC in graphical form.

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22

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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23

Jheng, An-Jihi, and 鄭安智. "The Arduino-Based Brushless DC (BLDC) Motor Control." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/95860623476297926517.

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碩士<br>南臺科技大學<br>電機工程系<br>104<br>This thesis proposes the drive design of a brushless DC motor (BLDC), employing an Arduino DUE as the core processor. In recent years, power electronics and permanent magnet materials technology have been mature, and the microcontroller functions have been increasingly powerful with low cost. Based on these advantages, the BLDC motors with low production cost will have more widespread industrial applications, and be popular in people's daily lives. Though Arduino boards are application-oriented, they are for general purposes, not aimed for real-time controller

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Hung-Chi, Chen, and 陳鴻祺. "DEVELOPMENT OF POSITION SENSORLESS BRUSHLESS DC MOTOR DRIVES." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/38599165885721795147.

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博士<br>國立清華大學<br>電機工程學系<br>89<br>Since the brushless DC motor (BDCM) drive with position sensorless control possesses higher capability in many industry applications, the major purpose of this dissertation is to establish a DSP-based sensorless BDCM drive, and to develop some key technologies for improving its driving control performance. For facilitating the implementation of the developed sophisticated control rules and the performance test, an experimental motor drive is first constructed. The motor is powered by a voltage source inverter with properly designed isolating drive circuits. The

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Αντωνάκου, Αλεξάνδρα. "Μελέτη και κατασκευή κυκλώματος οδήγησης κινητήρα τύπου DC Brushless χρησιμοποιώντας στοιχεία FPGA ή βιομηχανικό μικροελεγκτή". Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/3889.

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Η παρούσα διπλωματική εργασία πραγματεύεται την μελέτη, το σχεδιασμό και την κατασκευή κυκλώματος οδήγησης κινητήρα τύπου DC Brushless. Η εργασία αυτή εκπονήθηκε στο Εργαστήριο Ηλεκτρομηχανικής Μετατροπής Ενέργειας του Τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Η οδήγηση του κινητήρα τύπου DC Brushless γίνεται ηλεκτρονικά με τη χρήση τριφασικού αντιστροφέα ισχύος. Σκοπός λοιπόν της παρούσας εργασίας είναι η κατασκευή του παραπάνω κυκλώματος. Ο κινητήρας τύπου DC Brushless είναι Σύγχρονος Κινητήρας Μόνιμου Μαγνήτη, επομένως το

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揚明哲. "Design and Development of a Brushless DC Motor Driver." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/89398685320681804196.

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碩士<br>國立中興大學<br>電機工程學系<br>91<br>In general, a brushless DC motor (BLDCM) operates under the conditions that the magnetic position of the rotor should be detected via the Hall effect sensors. However, using hall position sensors to detect the rotor position, the control system of the BLDCM becomes very unreliable, in harsh environments. Therefore, in order to improve the BLDCM’s capabilities, the purpose of thesis focuses on developing BLDCM drivers utilizing the ST72141 microcontroller without the dedicated hall position sensors. Through using the appropriate pulse width modulation (PWM) sign

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27

He, Chia-Je, and 何嘉哲. "On-Line Diagnosis System Development for DC Brushless Fan." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/pr42x9.

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碩士<br>國立臺北科技大學<br>冷凍空調工程系所<br>94<br>Mechanical vibrations occur in the normal DC brushless fan working. The large magnitude vibrations may indicate the defects of the fan rolling parts. In this study, an on-line diagnosis system was developed to monitor the fan vibration and judge the failure conditions. Due to the complex mechanical interferences, spectrum analysis results can’t give enough information for the experimental judge of the fan failures. The artificial neural networks analysis was employed for the on-line diagnosis system to realize the automatic fan defects. The networks weightin

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28

Chen, Da-shien, and 陳達賢. "Development of a Direct-Drive System for Brushless DC Motors." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/10705899826333836239.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>93<br>This thesis is concerned with the design and implementation of a direct-drive system for brushless dc motors. On the grid side, a current-controlled single-phase power converter is designed to improve current harmonics and power factor, while on motor side, Hall-effect sensors are used to detect the position of rotor to estimate speed. In addition, the speed and current of motor are fed back to control speed and torque, respectively. In order to control the brushless dc motor in high speed, the phase-advancement control of six-step square waves is proposed to e

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Hsien, Chen-Po, and 陳柏憲. "Development of a Position Calibration System for Brushless DC Motors." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/ve8urm.

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碩士<br>中原大學<br>機械工程研究所<br>98<br>Abstract The applications of motors are very common in the machinery and electrical machinery related industry. Furthermore, the localization precision of the servomotor is more superior to the other motors; therefore the servomotor is used in the related industry more than the others. If there are some errors of the phase change position of brushless DC motor and the optical encoder gauges the position, when the motor is driven for any application, the motor main body would feel hot and operate not smoothly or even affects the automatic station operation, no m

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劉正彬. "Development of DSP-Based Speed Control System for Brushless DC Motors." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/28960197616640435672.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>90<br>This thesis presents the analysis and implementation of a wide-speed control system for brushless dc motors. A digital signal processor (DSP TMS320F240) is used to complete the whole digital control system to reduce hardware complexity and increase the speed response. A Hall-effect sensor is also used to detect rotor position and estimate rotor speed. In addition, speed and current feedback are invoked to realize the proposed high performance system. Specifically, a current feedback technique which is conducted by peak phase current control algorithm is impleme

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Tseng, Hao-Ting, and 曾浩庭. "Development of Rotor Position Sensorless Control for Brushless DC Motor Drives." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/6e48ja.

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碩士<br>明志科技大學<br>電機工程系碩士班<br>103<br>This thesis presents the development of rotor position sensorless control for brushless DC motor drives. The back-EMF detection is firstly used to estimate rotor position, and the linear interpolation method is proposed to implement closed-loop field-oriented control to drive brushless DC motor without rotor position sensor. In this thesis, the mathematical models of brushless DC motor and inverter are analyzed. Then, the voltage space vector modulation is used to increase the voltage utilization from the inverter. A high-performance and low-cost digital sign

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Kang, Yi-Jian, and 康毅堅. "Development of a Brushless DC Motor Driver with Space-Vector Control." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/rrfx84.

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碩士<br>國立臺灣海洋大學<br>電機工程學系<br>103<br>In recent years, owing to the rising awareness of environment protection, people ask for higher living standard. However, carbon emission by automobile hasn’t been reduced but got much higher these years, which leads to the rise of temperature and the loss of summer ice in Atlantic. The climate change and the degradation of the environment now again arouse the issues of conservation of energy and reduction of carbon emission. If electric vehicles substitute for ones powered by fossil fuel, it will not only lower the consumption of fossil and the emission of c

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Yang, Zih-Yi, and 楊紫億. "Development of High Speed Control System for Brushless DC Motor Drives." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/59307782421576958173.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>98<br>This thesis is concerned with the development of the control system for brushless dc (BLDC) motor in high speed applications. A control policy which combines pulse-amplitude modulation with pulse-width modulation is proposed to control the input voltage according to the speed command for BLDC motor drives. A dc-dc power converter is designed to change the voltage from 140~200 to 24~48 volt. The BLDC motor drives use three hall-effect sensors to detect rotor position and calculate motor speed for six-step square-wave and closed-loop control of speed. In this th

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Shi-Wei, Hung, and 洪士偉. "Development and Analysis of a Dual-Winding Permanent-magnet Brushless DC Motor Drive." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/69364190027609568443.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>92<br>This thesis is concerned with the analysis, simulation, modeling, and implementation of a new control strategy for dual-winding permanent-magnet brushless dc motor drive systems. The characteristics of the motor such as magnetic field distribution and steady-state property are analyzed by Flux2D using finite-element method. In addition, the magnetic saturation and back electromotive force distortion caused by armature reaction are also considered. Then the mathematical models of dual-winding permanent-magnet brushless dc motor and dual-inverter are built. Torqu

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Hung, Chia Chen, and 洪嘉謓. "Development of brushless DC motor driver for blower embedded in advanced patient care beds." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/79115155301060052157.

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碩士<br>元智大學<br>電機工程學系<br>92<br>ABSTRACT The objective of this paper is to analyze and design a brushless DC motor driver for blowers embedded in advanced patient care beds. The blower embedded in the electric medical bed system is responsible for recharging and releasing air for healing. In this paper, we employed a two-phase on six-step square wave control strategy to control the brushless DC motor. Also, Matlab/Simulink computer software was adopted to simulate the dynamic performance of the driver. The simulation data can analyze the capabilities of the control strategy

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Wei-LungChang and 張偉隆. "Development of a Power Conversion System for Permanent Magnet Brushless DC Integrated Starter-Generator." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/46272729826536837239.

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LIN, KUAN-MING, and 林冠明. "Development of a High Power Factor Step -Down AC-to-DC Power Converter on Permanent-Magnet Brushless DC Motor Drives." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/94102510091695499763.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>91<br>This thesis presents a three-phase step-down dc power converter for brushless dc motor drives. The converter developed can provide a regulated stable dc-link voltage, high power factor and low current distortion. The current prediction control is applied to track demanded currents for better performance. On the other hand, proper coordination of power source phase and converter operation mode is conducted to reduce switching loss for higher efficiency. Besides, speed control of brushless dc motor is achieved by using the magnetic pole position fed back through

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WEI, CHIA-PIN, and 魏佳賓. "Development of Speed Control System for Brushless DC Motors with Single-phase Power Factor Correction." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/48y2w4.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>105<br>This thesis aims to design and implement a speed control system for brushless dc (BLDC) motors with single-phase power factor correction (PFC). The system contains two major parts: the boost type PFC with two-phase interleaving control and sensor-less control for three phase BLDC motors used, respectively, on the grid and load sides. The former can yield high power factor as well as low total harmonic distortion (THD) on the input, and ripple voltage reduction of the dc-link, thereby reducing the inductance volume and increasing the power density. While the la

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Ρεκατσίνας, Ανρέας. "Προσομοίωση και κατασκευή διάταξης μετατροπής συνεχούς τάσεως προερχόμενης από ενεργειακά στοιχεία (fuel cells) σε εναλλασσόμενη". Thesis, 2010. http://nemertes.lis.upatras.gr/jspui/handle/10889/4195.

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Σκοπός της εργασίας αυτής είναι η μελέτη, εξομοίωση και κατασκευή ενός ηλεκτρονικού τριφασικού αντιστροφέα ισχύος, ο οποίος μετατρέπει μια σταθερή συνεχή τάση σε τριφασική εναλλασσόμενη , μέσω της οποίας ελέγχεται ένας τριφασικός σύγχρονος κινητήρας μόνιμου μαγνήτη (Brushless DC, BLDC). Η συνεχής αυτή τάση προέρχεται από έναν ηλεκτρονικό μετατροπέα ισχύος ανύψωσης συνεχούς τάσης σε συνεχή, ο οποίος ανυψώνει και σταθεροποιηθεί στα 50 V την τάση, η οποία παράγεται από μία πηγή κυψελών καυσίμου (Fuel Cells). Αρχικά έγινε ενδελεχής μελέτη διαφόρων τριφασικών αντιστροφέων με σκοπό την εμβάθυν

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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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De, Sukumar. "Rectifier And Inverter System For Driving Axial Flux BLDC Motors In More Electric Aircraft Application." Thesis, 2011. http://etd.iisc.ernet.in/handle/2005/2080.

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In the past two decades the core aircraft technology is going through a drastic change. The traditional technologies that is almost half a century old, is going through a complete revamp. In the new “More Electric Aircraft” technology many mechanical, pneumatic and hydraulic systems are being replaced by electrical and power electronic systems. Airbus-A380, Boeing B-787 are the pioneers in the family of these new breed of aircrafts. As the aircraft technology is moving towards “More Electric”, more and more electric motors and motor controllers are being used in new aircrafts. Number of electr

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