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Dissertations / Theses on the topic 'Electric motor'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Akil, Atilla. "Spherical electric motor design." Diss., Wichita State University, 2013. http://hdl.handle.net/10057/6419.

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2

Tollin, Ragnar. "Electric motor for aircraftpropulsion." Thesis, Uppsala universitet, Elektricitetslära, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-298752.

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This paper deals with the mechanical construction process of an electric motor demonstrator of Mauritz Andersson's design. Several design issues have been addressed, primarily the winding of the coils, the fixation of the coils and how toconnect the coils to the power electronics. Some mechanical parts have been constructed, and some preparations for creating the power electronics have been examined. The coils have been manufactured by using enameled copper wire, winding it with acrank onto a winding tool. The coil have been fixated with adhesive and removed from the winding tool. Several diff

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3

Griph, Sofie. "Electric Motor Controlled Joint Simulator." Thesis, Linköpings universitet, Reglerteknik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-129753.

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Tightening systems are used in several industries, including assembly in the auto- motive industry and installation of computer hardware. Both the company mak- ing the tools and the customers need to know the performance of the tightening system to ensure that the screw joints tighten as desired. This can be done using a test joint system. High demands on safety as well as fast assembly speeds, puts high demands on the test equipment. The problem with the existing test joints is that they are hard to do repeatable tests on. The most common test joints are constructed us- ing mechanic or hydrau

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4

Zhang, Ruoju, and 張若菊. "A new PM hybrid motor drive for electric vehicles." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31472849.

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5

Groen, Benjamin Carson. "Investigation of DC Motors for Electric and Hybrid Electric Motor Vehicle Applications Using an Infinitely Variable Transmission." BYU ScholarsArchive, 2011. https://scholarsarchive.byu.edu/etd/2696.

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Since the early 1900's demand for fuel efficient vehicles has motivated the development of electric and hybrid electric vehicles. Unfortunately, some components used in these vehicles are expensive and complex. AC motors, complex electronic controllers and complex battery management systems are currently used in electric (EV) and hybrid vehicles. This research examines various motors and speed control methods in an attempt to help designers identify which motors would be best suited for an EV powertrain application. The feasibility of using DC motors coupled with an Infinitely Variable Transmi

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6

Lund, Richard. "Multilevel Power Electronic Converters for Electrical motor Drives." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-687.

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<p>Power electronic converters are widely used in industrial power conversion systems both for utility and drives applications. As the power level increases, the voltage level is increased accordingly to obtain satisfactory efficiency. During the last years, the voltage rating of fast switching high voltage semiconductors such as the Insulated Gate Bipolar Transistor (IGBT) has increased. Still, there is a need for series connection of switching devices. In this area of applications, the Multilevel Converter has shown growing popularity.</p><p>The fundamental advantages of the Multilevel Conve

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7

Al, Shadidi Kamilla. "Oil Cooling of Electric Motor using CFD." Thesis, KTH, Tillämpad termodynamik och kylteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149673.

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This thesis investigated the heat transfer of internally oil cooled rotors in permanent magnet electric machines which are, among other things, used in hybrid vehicles or zero emission vehicles. The magnets become sensitive and can be demagnetized at high working temperatures, hence the need of cooling. The scope of this work included CFD simulations in STAR-CCM+. Three different 3D multiphase models simulating the oil propagation in the rotor were performed. A Lagrangian multiphase model combined with a fluid film model was the most suitable model for simulating the spray of the oil and the f

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8

Mugglestone, Jonathan. "End region cooling in an electric motor." Thesis, University of Nottingham, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263420.

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9

Youard, Timothy John. "Feasibility of an Electric Jetpack." Thesis, University of Canterbury. Electrical and Computer Engineering, 2010. http://hdl.handle.net/10092/5293.

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The Martin Aircraft Company Limited has been developing the Martin Jetpack for over 25 years. The recent worldwide launch of the Jetpack has enabled the company to step up its research and development programme. The goal of this project was to determine the feasibility of an electrically powered version of the Martin Jetpack. The feasibility of the Electric Jetpack was determined by researching energy storage technologies, researching power cable technologies, simulations of flight times, surveys of electric motors, and the development of a simulation program which was used to optimise some

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10

Neupane, Nirdesh. "Comparison of Switched Reluctance Motor and Double Stator Switched Reluctance Motor." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2564.

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This thesis is concerned with the design and analysis of Switched Reluctance Motor (SRM) and its improved structure Double Stator Switched Reluctance Motor (DSSRM). Three configurations of SRM viz. Inner Stator, Outer stator and Double Stator are designed and simulated in ANSYS Maxwell Suite. Design parameters are chosen by aiming optimum performance of motor after literature review and analytical study of the motor. SRM is not a line start machine, so power converter circuit is required to excite the motor. Without proper switching of current, desired torque is not obtained in SRM. The conver

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11

Yeoh, Seang Shen. "Control strategies for the More Electric Aircraft starter-generator electrical power system." Thesis, University of Nottingham, 2016. http://eprints.nottingham.ac.uk/34098/.

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The trend towards development of More Electric Aircraft (MEA) has been driven by increased fuel fossil prices and stricter environmental policies. This is supported by breakthroughs in power electronic systems and electrical machines. The application of MEA is expected to reduce the aircraft mass and drag, thereby increasing fuel efficiency and reduced environmental impact. The starter-generator (S/G) scheme is one of the solutions from the MEA concept that brings the most significant improvement to the electrical power generation system. A S/G system is proposed from the possible solutions br

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12

Proca, Amuliu Bogdan. "Induction Motor Control for Hybrid Electric Vehicle Applications." The Ohio State University, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=osu1392745228.

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13

Ngan, Shing-kwong. "Comparison of electric vehicles, hybrid vehicles & LPG vehicles /." Hong Kong : University of Hong Kong, 1999. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21301384.

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14

Druyts, Jan. "Control induction motor by frequency converter : Simulation electric vehicle." Thesis, Halmstad University, Energiteknik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-4968.

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<h2><strong>Summary</strong></h2><p><strong> </strong>Today we are probably on a point of change for the car industry. The last century was the century of vehicles with internal combustion engines. Fossil fuels were relative cheap, easy accessible and they have a high specific energy. The pollution and dependency on oil caused the last decade an increasing demand for alternatives. Alternatives for electric power plants and for car drives. Yet the turnover to hybrids is a fact and much research is done for pure electric vehicles. Research about the control of electric motors is by that become a

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15

Roberts, D. "The application of an induction motor thermal model to motor protection and other functions." Thesis, University of Liverpool, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380092.

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16

Meenen, Jordan N. "MIT Electric Vehicle Team Porsche designing a cooling system for the AC24 electric motor." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59948.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 32-33).<br>In this thesis I worked on the design and analysis of a cooling system for the electric motor of the MIT Electric Vehicle Team's Porsche 914 Battery Electric Vehicle. The vehicle's Azure Dynamics AC24 motor tended to overheat (up to around 140C), which caused the motor controller to limit the maximum power of the motor. The maximum operating temperature of the motor is listed as 55C. The power limitation prev

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17

Rind, S. J. "Speed sensorless induction motor drive control for electric vehicles." Thesis, University of Liverpool, 2017. http://livrepository.liverpool.ac.uk/3008062/.

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Fast diminishing fossil fuel resources, deterioration in air quality and concerns for environmental protection, continuously promote the interest in the research and development of Alternative Energy Vehicles (AEVs). Traction motor drive is an integral part and common electric propulsion system in all kinds of AEVs. It plays an utmost significant role in the development of electrified transport industry. Application of Induction Motor (IM) drive is not only limited to the domestic and industrial applications but also has an ubiquitous influence in the modern electrified transport sector. IM is

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18

Skawinski, Grzegorz. "Fuel pump motor-drive systems for more electric aircraft." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.527520.

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The fuel systems fitted to the current generation of civil transport aircraft are rather complicated, due to the presence of multiple tanks, pumps, valves and complex pipeline systems. During fuel transfer between the tanks, when controlling the aircraft centre of gravity or engine feed and refuel operations, a number of pumps and valves are involved resulting in complex pressure and flow interactions. In order to minimise the pressure surges during sudden system changes and flow overshoot during fuel transfer and refuelling, different motor drive system control strategies have been investigat

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19

Yan, Xin. "Leadership and internal guanxi in Chinese electric motor enterprises." Thesis, Abertay University, 2016. https://rke.abertay.ac.uk/en/studentTheses/4b84834f-1cbe-47da-8dfc-9c14b765fdd6.

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This research explores the nature of guanxi inside Chinese enterprises and considers the implications for leadership at a time when Western leadership models are growing in dominance, and Eastern cultural norms are still in existence. The literature on guanxi is extensive, but the lack of its application inside organizations, and, in this case, in the leadership function is sparse. The research questions include whether guanxi is applied internally to the organization and, if it is, how does this influence leadership behaviour? The research adopts a pragmatist, social constructivist position,

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20

Awawda, Lama. "Design of an Electric Motor (PMSM) and Manufacturing Lab." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-20118.

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The thesis presents deals with the design, analysis, test and control of permanent magnetsynchronous motor(PMSM).An analytical model was carried out based on the d-q frame and the equivalent circuit of PMSM, theanalytical model gives an approximation value of the machine parameters and is carried out byequations from the listed references. this phase includes many iteration steps, once the results wereobtained they were compared with the motor specifications and if they don’t match the requiredspecifications the process must be done again until the desired design is obtained.Once the analytica

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Awawda, Lama. "Design of an electric motor (PMSM) & manufacturing lab." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-20118.

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The thesis presents deals with the design, analysis, test and control of permanent magnetsynchronous motor(PMSM). An analytical model was carried out based on the d-q frame and the equivalent circuit of PMSM, theanalytical model gives an approximation value of the machine parameters and is carried out byequations from the listed references. this phase includes many iteration steps, once the results wereobtained they were compared with the motor specifications and if they don’t match the requiredspecifications the process must be done again until the desired design is obtained. Once the analyti

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22

Beckman, Mathias, and Gerald Volden Alex Christy. "Performance Assessment of Electrical Motor for Electric Aircraft Propulsion Applications : Evaluation of the Permanent Magnet Motor and its Limitations in Aircraft Propulsion." Thesis, Mälardalens högskola, Akademin för ekonomi, samhälle och teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-45157.

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This thesis project will evaluate which kind of electrical motor is best suited for aircraft propulsion and which parameters effect the efficiency. An economic analysis was conducted, comparing the fuel price (Jet A1) for a gas turbine and the electricity price for an electric motor of 1MW. The study was conducted by using analytical methods in MATLAB. Excel was used to compile and present the data. The data used in this thesis project were assumed with regards to similar studies or pre-determined values. The main losses for the Permanent Magnet Synchronous Motor (PMSM) were calculated to achi

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23

Obiozor, Clarence Nwabunwanne. "Finite element analysis of a defective induction motor." Ohio University / OhioLINK, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1171672609.

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24

Jiang, Shuzhong, and 姜淑忠. "An advanced pole-changing induction motor drive for electric vehicles." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B31245407.

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25

Ceron, Guerrero Jose Hermilo. "Design of a high specific torque induction motor." Thesis, University of Manchester, 2015. https://www.research.manchester.ac.uk/portal/en/theses/design-of-a-high-specific-torque-induction-motor(723d535b-d9f0-400d-b0ba-84e77af0e8c0).html.

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Electric vehicles are a key technology in the reduction of our carbon footprint and this has motivated significant research interest. The electrical traction motor is one of the main areas of research in attempts to further improve electric vehicle performance. The permanent magnet motor is the predominant device in this application because of its high specific torque. However, it has suffered from market speculation in the raw magnet materials which has generated efforts to develop electrical machines which have a high specific torque and do not contain rare earth materials. In the past the i

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26

Leedy, Aleck Wayne Nelms R. M. "Analysis of DC power systems containing induction motor-drive loads." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Spring/doctoral/LEEDY_ALECK_32.pdf.

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27

Bharadwaj, Aravind S. "Vector controlled induction motor drive systems." Diss., This resource online, 1993. http://scholar.lib.vt.edu/theses/available/etd-06062008-172143/.

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28

Gao, Yuan, and 高源. "Control of chaos in advanced motor drives." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2005. http://hub.hku.hk/bib/B45014784.

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29

Larsson, Martin. "Electric Motors for Vehicle Propulsion." Thesis, Linköpings universitet, Fordonssystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-103907.

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This work is intended to contribute with knowledge to the area of electic motorsfor propulsion in the vehicle industry. This is done by first studying the differentelectric motors available, the motors suitable for vehicle propulsion are then dividedinto four different types to be studied separately. These four types are thedirect current, induction, permanent magnet and switched reluctance motors. Thedesign and construction are then studied to understand how the different typesdiffer from each other and which differences that are of importance when it comesto vehicle propulsion. Since the amo

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30

Nennelli, Anjali Devi. "Simulation of heavy-duty hybrid electric vehicles." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2259.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains xvi, 112 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 85-87).

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31

詹宜巨 and Yiju Zhan. "A high performance switched reluctance motor drive for electric vehicles." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31238026.

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32

Zhang, Hui. "On Electric Machinery for Integrated Motor Drives in Automotive Applications." Doctoral thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-207942.

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Compact, electric drives for automotive traction applications represent animportant enabler towards realizing tomorrow’s fossil free transport solutions.One attractive solution is to integrate the power electronic converter withits associated electric machinery into a single unit. This thesis, along withits appended papers, considers design and analysis of electric machinery forintegrated electric drives intended for automotive applications. Particular focusis put on permanent-magnet synchronous machines (PMSMs) with interiormountedpermanent magnets combined with modular converter topologies.I

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Zhan, Yiju. "A high performance switched reluctance motor drive for electric vehicles /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B19833945.

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34

Makronikos, Asp Andreas. "Thermal simulation of an electric motor for an airplane application." Thesis, Uppsala universitet, Elektricitetslära, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-393002.

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More climate aware alternatives are explored and one of them is electric aircraft engines. As a transition between combustion to electric motor, hybrid engines have the positive characteristics of the two engine alternatives. But it also comes with new obstacles that more research is needed on. The University if Juiz de Fora works on a test bench for all components that sit on the hybrid plane's powertrain. In this project, the electric motor is in focus and a simulation will be created.

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35

Ghosh, Ramit. "Sensorless starting of a brushless D.C. motor." Thesis, Virginia Tech, 1988. http://hdl.handle.net/10919/43403.

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<p>Permanent magnet brushless DC motors that have found wide application in high performance servo drives need absolute rotor position sensors. However, the cost of the position sensor limits the use of brush less DC motors for low performance applications such as automotive and home appliances. A sensorless starting scheme for brushless DC motors is studied in this thesis. A hardware implementation of the starting scheme has been instrumented. The modeling and simulation of the sensorless starting performance of brushless DC motors have been accomplished to gain the insight into the process.

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36

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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37

Wung, Peter Yu-Pu. "Operating point dependent modeling of synchronous reluctance motors and its implication on vector controlled motor performance." Diss., Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/15042.

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38

Khan, Wasim. "Nonlinear and adaptive control of motor drives with compensation of drive electronics." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/13895.

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39

Chan, Sau-ha. "Tradeoff between internal combustion engined vehicles and electric vehicles in Hong Kong /." Hong Kong : University of Hong Kong, 1995. http://sunzi.lib.hku.hk/hkuto/record.jsp?B17092267.

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40

Tang, Yun-chung. "Motor simulation and parameter identification in a reciprocating mechanism." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-10312009-020104/.

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41

Feyzi, Mohammad Reza. "Thermal modelling of deep bar induction motor at stall /." Contents and summary only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phf435.pdf.

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42

Gougani, Milad. "Hall sensor-based locking electric differential system for BLDC motor driven electric vehicle with independent wheel drives." Thesis, University of British Columbia, 2012. http://hdl.handle.net/2429/42168.

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It is generally known that stability of vehicles under certain driving conditions may be improved by forcing the wheels to turn at the same speed and angle regardless of the available traction under individual wheels. For conventional all-terrain vehicles or sport-utility vehicles, this function can be achieved by locking the mechanical differential system. In this thesis, we propose an innovative approach for locking the electrical differential system (EDS) of electric vehicles (EV) with independent brushless DC (BLDC) machine-based wheel drives. The proposed method locks the active wheels of

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43

Matthews, Alistair Marc. "Controller & modification of a light hub-motor propelled electric wheelchair." Thesis, Cape Peninsula University of Technology, 2012. http://hdl.handle.net/20.500.11838/1131.

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Thesis (MTech( Electrical Engineering)) -- Cape Peninsula University of Technology, 2012<br>Due to the complex design of existing electric mobility vehicles in South Africa and their imported parts, make them unaffordable to the majority of disabled people in South Africa. The traditional electric units are also not practical for use in rural areas due to the heavy, bulky design. The scope of this study was to investigate various designs using existing wheelchair frame designs, low cost three phase hub motors and various electronic techniques to achieve the desired functionality. An attempt wa

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44

Deib, Deib Ali. "Induction motor operation with series capacitance." Ohio : Ohio University, 1986. http://www.ohiolink.edu/etd/view.cgi?ohiou1183129403.

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45

Chin, Yung-Kang. "A permanent magnet synchronous motor for an electric vehicle - design analysis." Licentiate thesis, KTH, Electrical Systems, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1763.

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<p>This thesis presents the study and the design analysis of apermanent magnet synchronous motor (PMSM) for the tractionapplication of an electric vehicle. An existing inductiontraction motor for an electric forklift benchmarks the expectedperformances of the proposed PMSM design. Further, thepossibility of using the identical stator as the one used inthe induction motor is explored for the fast prototyping. Theprototype motor is expected to be field-weakened and to have aconstant power speed range (CPSR) of 2.5 to 3.</p><p>A design approach based on the CPSR contour plot in aninterior permane

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46

Wang, Zheng, and 王政. "Chaoization and stabilization of electric motor drives and their industrial applications." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B40687594.

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FREITAS, DANIEL ZACARIAS. "EFFICIENCY ANALYSIS AND CONTROL OF AN INTEGRATED IN-WHEEL ELECTRIC MOTOR." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2015. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=26373@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR<br>PROGRAMA DE EXCELENCIA ACADEMICA<br>Esta dissertação apresenta o estudo para o desenvolvimento de um powertrain elétrico com motorização independente na massa não suspensa do veículo, acoplado diretamente nas rodas In Wheel ou Hub-Motor . O desenvolvimento do sistema proposto visa à maximização da eficiência dos veículos elétricos pela minimização das perdas relacionadas a sistemas mecânicos, como na transmissão convencional utilizada em veículos com motorização única. Outro

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48

Narkhede, Yashdeep. "Simscape modeling of motor generator unit component for hybrid electric vehicle." Thesis, Georgia Institute of Technology, 2016. http://hdl.handle.net/1853/55047.

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The thesis introduces the user to programming in Simscape language. A permanent magnet synchronous machine torque control drive system for hybrid electric vehicles has been analyzed, programmed, using Simscape language, and tested in this thesis. The thesis walks the reader through the process of creating custom components in Simscape language explaining details and syntax of the language at every step. Important excerpts of code for all the components designed, created and used in the process are explained in the thesis and the complete code for the same is provided in the Appendix. ix

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49

Braiwish, Nasser. "Design optimisation of brushless permanent magnet synchronous motor for electric vehicles." Thesis, Cardiff University, 2016. http://orca.cf.ac.uk/100265/.

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A novel new application of optimisation algorithm “Bess Algorithm” in the design of electric machine is presented in this thesis. The optimisation has the ability to perform global and local search and can be applied on constrained, unconstrained optimisation problem with multi-objective function, which all counted when consider optimisation algorithm for the design of electric machine. The searching procedure of the optimisation algorithm has been described in detailed. Furthermore, novel instructions and recommendation were implemented to tune the optimisation parameters, particularly for th

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Wang, Zheng. "Chaoization and stabilization of electric motor drives and their industrial applications." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B40687594.

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