Log in

Relevant bibliographies by topics / Motor Flex / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Motor Flex.

Dissertations / Theses on the topic 'Motor Flex'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Motor Flex.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Silva, Marcos Henrique Carvalho. "Modelagem de motores a combustão interna com tecnologia FLEX." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-17072018-084552/.

Full text

Abstract:

A modelagem de motores a combustão interna deve grande parte de sua importância ao uso de unidades de controle eletrônicas que buscam gerenciar as funções do motor. De forma a fornecer melhor suporte para o projetista de controle, a modelagem oferece informações que servem de planta, sobre a qual estratégias de controle serão desenvolvidas. Nesta dissertação, procurou-se estudar e modelar cinco fenômenos: a admissão de ar e de combustível, a produção de energia efetiva através da combustão, a evolução térmica do motor e o comportamento dos gases no sistema de exaustão. Investigou-se também, em

APA, Harvard, Vancouver, ISO, and other styles

2

Laranja, Gil Colona. "Desempenho de um ve?culo flex em bancada dinamom?trica de chassi." Universidade Federal do Rio Grande do Norte, 2010. http://repositorio.ufrn.br:8080/jspui/handle/123456789/15645.

Full text

Abstract:

Made available in DSpace on 2014-12-17T14:58:06Z (GMT). No. of bitstreams: 1 GilCL_DISSERT.pdf: 1771464 bytes, checksum: 92ddc93639f74d5c2bbc96617815f7ed (MD5) Previous issue date: 2010-12-18<br>Flex-fuel vehicles are equipped with Otto Cycle internal combustion engines and have the capability of functioning with more than one type of fuel, mixed at the same tank and burned in the combustion chamber simultaneously. This sort of motorization is a world pattern due to the scarcity of petroleum, the trade of several types of fuels, technology advances and the restriction imposed to gas emission

APA, Harvard, Vancouver, ISO, and other styles

3

Filho, Dinecio dos Santos. "Alterações metalúrgicas e topográficas do cilindro de bloco de motor de combustão interna flex-fuel." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-09022015-163026/.

Full text

Abstract:

O presente estudo descreve as alterações metalúrgicas e topográficas do cilindro de blocos de motor de combustão interna fabricados em ferro fundido cinzento, após a realização de testes de durabilidade em dinamômetro. O motor testado tem tecnologia Flex-Fuel, e pode ser operado com qualquer proporção de mistura gasolina comum/etanol. Um motor foi testado com combustível etanol e o outro com gasolina comum, buscando-se assim representar duas condições extremas de trabalho em termos de combustível. A pesquisa constituiu-se da revisão bibliográfica e da parte prática que envolveu: a realização d

APA, Harvard, Vancouver, ISO, and other styles

4

Cunha, Rodrigo Potenza da. "Caracterização mecânica e metalográfica de uma liga de alumínio empregada para cabeçote de motor flex." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/3/3133/tde-08032013-115751/.

Full text

Abstract:

Hoje em dia na indústria automobilística há uma grande necessidade em diminuição de custos e de peso no carro e isso pode ser o diferencial na concorrência da indústria automobilística. A substituição de materiais pesados por materiais mais leves é uma tendência mundial na indústria automobilística, além disso, existe também a necessidade de diminuir as etapas de processo. O tratamento térmico é uma etapa que tem um gasto muito grande de energia consequentemente é uma etapa muito cara do processo e ligas não tratáveis termicamente pode acarretar em economia de processo. O cabeçote de motor é u

APA, Harvard, Vancouver, ISO, and other styles

5

Chiapinotto, Lino. "Análise da combustão e das emissões de um motor flex usando misturas heterogêneas de combustíveis." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/152162.

Full text

Abstract:

Submitted by LINO CHIAPINOTTO null (lchiapinotto@gmail.com) on 2017-11-21T17:28:28Z No. of bitstreams: 1 Defesa LINO_Versao Final.pdf: 2025683 bytes, checksum: 06211c8bab58758df3a08535a4aa3f80 (MD5)<br>Submitted by LINO CHIAPINOTTO null (lchiapinotto@gmail.com) on 2017-11-22T14:06:59Z No. of bitstreams: 1 Defesa LINO_Versao Final.pdf: 2025683 bytes, checksum: 06211c8bab58758df3a08535a4aa3f80 (MD5)<br>Submitted by LINO CHIAPINOTTO null (lchiapinotto@gmail.com) on 2017-11-22T18:09:14Z No. of bitstreams: 1 Defesa LINO_Versao Final.pdf: 2025683 bytes, checksum: 06211c8bab58758df3a08535a4aa3f

APA, Harvard, Vancouver, ISO, and other styles

6

Hayashida, Paulo Alexandre Pizara. "Desenvolvimento de uma estratégia de controle de detonação para otimização do torque em um motor de combustão interna flex." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3142/tde-24092018-074932/.

Full text

Abstract:

O presente trabalho aborda o gerenciamento eletrônico de motores de combustão interna flex, com foco no desenvolvimento de uma estratégia de controle do avanço de ignição em função da ocorrência de combustão anormal conhecida como detonação, para se maximizar o torque de saída do motor. Primeiramente, é desenvolvido um método para a medição da composição de combustível e correção dos parâmetros de tempo de injeção e avanço de ignição, através de um sensor de composição de combustível. Tais parâmetros são definidos através de mapas que trabalham como um sistema de malha aberta. Em seguida, é de

APA, Harvard, Vancouver, ISO, and other styles

7

Costa, Fabiano Tadeu Mathias. "Estimação da relação ar-combustível e do tipo de combustível utilizando o sinal de pressão no cilindro em um motor ciclo Otto alimentado com misturas de etanol e gasolina." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/18/18149/tde-23082015-131423/.

Full text

Abstract:

A pesquisa realizada tratou do estudo de modelos de estimação da relação ar-combustível e de identificação do tipo de combustível usando o sinal da pressão no cilindro em um motor quatro tempos automotivo, alimentado com gasolina brasileira tipo C, etanol e misturas destes combustíveis. Foi montada uma bancada dinamométrica para realização de testes em um motor originalmente projetado para operar com etanol e que possui relação de compressão de 13,44:1. Durante os testes do motor foram coletados dados referentes às variáveis de desempenho e emissões de gases de exaustão. Os dados coletados em

APA, Harvard, Vancouver, ISO, and other styles

8

Hudson, Christopher Allen. "Single-Phase, Single-Switch, Sensorless Switched Reluctance Motor Drive Utilizing a Minimal Artificial Neural Net." Thesis, Virginia Tech, 2005. http://hdl.handle.net/10919/34735.

Full text

Abstract:

Artificial Neural Networks (ANNs) have proved to be useful in approximating non- linear systems in many applications including motion control. ANNs advocated in switched reluctance motor (SRM) control typically have a large number of neurons and several layers which impedes their real time implementation in embedded sys- tems. Real time estimation at high speeds using these ANNs is diffcult due to the high number of operations required to process the ANN controller. An insuffcient availability of time between two sampling intervals limits the available computation time for both processing the

APA, Harvard, Vancouver, ISO, and other styles

9

Wallace, Mark. "The new flux switching motor : a DC motor without brushes." Thesis, University of Warwick, 2000. http://wrap.warwick.ac.uk/4496/.

Full text

Abstract:

This thesis is principally concerned with the theoretical modelling, design, manufacture, performance testing, and development of a new type of low-cost electronically-commutated doubly-salient wound-field brushless DC-motor, named the flux-switching motor. The drive-system that was designed, and developed, was specifically intended to be used in a low-power application (2.5 horsepower, less than 2 kW output-power), according to a given specification Extensive testing using four prototype motors has been carried out in attempting to satisfy the specification. From this testing empirical modell

APA, Harvard, Vancouver, ISO, and other styles

10

Yilmaz, Kurtulus. "Comparison Of Axial Flux And Radial Flux Brushless Dc Motor Topologies For Control Moment Gyroscope Wheel Applications." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12610565/index.pdf.

Full text

Abstract:

In this thesis axial flux and radial flux brushless dc motors will be studied as a drive motor for the control of moment gyroscope wheel. Design equations for axial flux and radial flux brushless dc motor topologies will be reviewed. Based on these equations radial and axial flux motors with different number of poles will be designed that meet control moment gyroscope wheel application requirements. The results will be evaluated in terms of efficiency, torque/mass and torque/volume, and suitability for the control moment gyroscope application.

APA, Harvard, Vancouver, ISO, and other styles

11

Comanescu, Mihai. "Flux and speed estimation techniques for sensorless control of induction motors." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1116338965.

Full text

Abstract:

Thesis (Ph.D.)--Ohio State University, 2005.<br>Title from first page of PDF file. Document formatted into pages; contains xv, 109 p.; also includes graphics. Includes bibliographical references (p. 106-109). Available online via OhioLINK's ETD Center

APA, Harvard, Vancouver, ISO, and other styles

12

Amreiz, Hassan Musa. "Transverse flux switched reluctance motors." Thesis, University of Newcastle Upon Tyne, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.270782.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Lobo, Nimal. "Doubly-Salient Permanent Magnet Flux-Reversal-Free-Stator Switched Reluctance Machines." Diss., Virginia Tech, 2011. http://hdl.handle.net/10919/77978.

Full text

Abstract:

A new hybrid machine having variable reluctance and permanent magnets (PMs) is presented. The machine makes use of the features of a PM machine and variable reluctance machine. The resulting machine is doubly salient and has a structure free of flux reversals. Unlike conventional doubly salient permanent magnet machines (DSPMs), the one proposed in this report is driven by unipolar currents and uses an asymmetric converter which is used to drive switched reluctance machines. The reason to have a new hybrid machine without the drawbacks of conventional flux-reversal-free-stator SRMs and conv

APA, Harvard, Vancouver, ISO, and other styles

14

Fjällström, Emil. "Impact of Converter Modulation Strategies on the Losses in a Traction Motor." Thesis, KTH, Elektrisk energiomvandling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-163530.

Full text

Abstract:

With an increased demand on high-efficiency electrical machines in traction applications, better understanding in the losses induced by the converter is needed. The harmonic losses from the converter are non-negligible part of the total losses in an induction machine, and these harmonic losses have been studied here with a focus on iron, skin-effect and proximity losses. The main goal of the thesis is to advise how the modulation method can be changed to lower these time harmonic losses in an induction machine. A model of the induction machine was created in the FEM(Finite Element Method) soft

APA, Harvard, Vancouver, ISO, and other styles

15

Taylor, Cameron Roy. "Optimization of transverse flux motor for utilization in bionic joints." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106047.

Full text

Abstract:

Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2016.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 95-97).<br>Though there have been remarkable advances in powered prosthesis technology over the past decade, design limitations of commercial electric motors are one of the main bottlenecks in meeting critical device requirements, such as minimum range on a single battery charge and acoustic emission restrictions. Traditional motor design focuses on motor development for operati

APA, Harvard, Vancouver, ISO, and other styles

16

Shiwakoti, Rochak. "Design and Analysis of Modular Axial Flux Switched Reluctance Motor." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2680.

Full text

Abstract:

This thesis presents a new modular structure of the axial flux Switched Reluctance Motor (SRM). The design consists of four stator disks with each adjacent disk rotated 30 degrees apart and four rotor disks connected to a common shaft. The proposed design aims to reduce the unwanted radial force, mitigate the torque ripple, and improve the efficiency. The modular structure distributes the radial force and torque strokes along the axial length of the motor, potentially damping the torque pulsation. In addition, the modular structure would deliver the rating power at a lower current level, reduc

APA, Harvard, Vancouver, ISO, and other styles

17

Lacina, David. "Malý axiální motor pro čerpadlo." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2017. http://www.nusl.cz/ntk/nusl-318186.

Full text

Abstract:

This thesis aims to design a motor with axial magnetic flux, which could be used as a direct propeller of heart replacement pump. It is divided into several parts, first of which deals with describing possible axial motors construction design. Next follows up the description of possible motor designs, from which the non-ferrous one was chosen. After that, an analytic calculation of motor’s properties is conducted. Calculated parameters are thereafter verified by software tools using finite element method. Finally, the whole motor was manufactured and had its parameters tested and verified.

APA, Harvard, Vancouver, ISO, and other styles

18

Buøy, John Ola. "Development of high efficiency Axial Flux Motor for Shell Eco-marathon." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2013. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-23648.

Full text

Abstract:

In 2011 Lubna Nasrin designed an optimized in-wheel axial flux motor for the competition Shell Eco-Marathon. A motor was built for the 2012 competition by Fredrik V. Endresen. Testing of this motor showed however that the performance was nothing like the one anticipated by Nasrin?s. The conclusion was that the production methods were not good enough and this was the main reason for the poor result.A new motor was built for use in the 2013 competition. Several design improvements over the old motor which was built in 2010 has been made. Litz wire is used in the stator and Halbach array permanen

APA, Harvard, Vancouver, ISO, and other styles

19

Novinschi, Anca. "Simulation and implementation of rotor flux control for an induction motor." Thesis, De Montfort University, 1998. http://hdl.handle.net/2086/5208.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Mularcik, Bradley S. "Virtual Moving Air Gap for the Speed Range Improvement of a Dual Stator Axial Flux Motor." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1340404856.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Ertugrul, Baris Tugrul. "Sensorless Vector Control Of Induction Motor Based On Flux And Speed Estimation." Master's thesis, METU, 2008. http://etd.lib.metu.edu.tr/upload/12610297/index.pdf.

Full text

Abstract:

The main focus of the study is the implementation of techniques regarding flux estimation and rotor speed estimation by the use of sensorless closed-loop observers. Within this framework, the information about the mathematical representation of the induction motor, pulse width modulation technique and flux oriented vector control techniques together with speed adaptive flux estimation &ndash<br>a kind of sensorless closed loop estimation technique- and Kalman filters is given. With the comparison of sensorless closed-loop speed estimation techniques, it has been attempted to identify their sup

APA, Harvard, Vancouver, ISO, and other styles

22

Cumbria, Neil M. "Robust controlled flux estimation for indirect field-oriented controlled induction motor drives." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0023/MQ31386.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

23

Zagheli, Hossein Rahmatizadeh. "Flux and loss distribution in machine stator cores." Thesis, Cardiff University, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316343.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Huzlík, Rostislav. "Motor-generátor pro vírovou turbínu." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-233693.

Full text

Abstract:

The aim of this doctoral thesis is to design a motor-generator for swirl turbine. Swirl turbine is a relatively new type of turbine developed at the Department of Fluid Engineering Viktor Kaplan Energy Institute FME BUT. Swirl turbine is designed for use on small head, where the classical types of turbines either poor efficacy or are economically disadvantaged. As suitable construction for the motor-generator was selected synchronous machine with permanent magnets and with axial magnetic flow with coreless stator. As part of the work is carried out calculating the properties of turbines for de

APA, Harvard, Vancouver, ISO, and other styles

25

Chai, Kao Siang. "Design & optimisation of the flux switching motor and drive with genetic algorithms." Thesis, University of Leicester, 2004. http://hdl.handle.net/2381/30215.

Full text

Abstract:

The Flux switching motor is a new class of reluctance machine that has demonstrated potential as a possible replacement for brushed-dc motor in many applications. However the design and optimisation of the motor and its drive system are rather complicated and not much past knowledge and guidelines are available to aid the engineer(s) in the design of the machine.;The development of flexible and versatile design optimisation software to facilitate the design and optimisation of FS motor and drive is presented. The design optimisation software incorporates a genetic algorithm optimisation tool a

APA, Harvard, Vancouver, ISO, and other styles

26

Thelin, Peter. "Design and Evaluation of a Compact 15 kW PM Integral Motor." Doctoral thesis, KTH, Electrical Systems, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3322.

Full text

Abstract:

<p>This thesis deals with the integral motor of tomorrow, and particularly with a variable speed, sensorless permanent magnet synchronous motor with an integrated converter. The rated power is 15 kW at 1500 r/min. The outer dimensions are approximately the same as for the equivalent standard induction motor.</p><p>Control strategies for pumps and fans, i.e. suitable loads for variable speed motors, are briefly described. The huge energy savings that can be made by reducing the speed instead of throttling/choking the flow are pointed out. Compared to installing an induction motor with a separat

APA, Harvard, Vancouver, ISO, and other styles

27

Endresen, Fredrik Vihovde. "Electric Motor Development for Shell Eco-Marathon : Manufacturing an ironless axial flux permanent magnet Motor with Hallbach array and Development of existing Motor for the Shell Eco-Marathon Competition." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2012. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-19021.

Full text

Abstract:

This thesis describes the process of making a new engine for the car DNV Fuel Fighter 2 that participated in the Shell Eco-Marathon Europe 2012 in Rotterdam. The decision was made to construct a new engine based on an optimized design by Lubna Nasrin. The engine is an ironless axial flux permanent magnet machine with Hallbach array. As a contingency plan there was the possibility to modify the engine used in 2010 and 2011 built by André Dahl-Jacobsen. The result of the process is that the new engine is operational and it has displayed an efficiency of 68 %. However the old engine has disp

APA, Harvard, Vancouver, ISO, and other styles

28

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.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Hasibuan, Ronaldo Gustav Pangihutan. "Analysis of Cooling System and Its Influence on Magnetic Flux Density in a Motor." Thesis, Uppsala universitet, Institutionen för elektroteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-414929.

Full text

Abstract:

After Michael Faraday invented the magnetism theory in 1821, the application of the permanent magnet machine was rapidly developed. The permanent magnet synchronous machine is one of the popular applications of electromagnetic theory, which is implemented in most electric vehicles nowadays. Since then, the trend of renewable electricity increased in order to reduce emission and electric vehicle popularity increased significantly. However, designing a motor that is able to rotate very fast for electric vehicle implementation is tricky. The cooling part is one of the important parts in order to

APA, Harvard, Vancouver, ISO, and other styles

30

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.

Full text

Abstract:

<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

APA, Harvard, Vancouver, ISO, and other styles

31

Colberg, Francis R. "Damage analysis of internal faults in flux concentrating permanent magnet motors." Thesis, Monterey, California. Naval Postgraduate School, 1994. http://hdl.handle.net/10945/25798.

Full text

Abstract:

It is the purpose of the proposed research to develop a digital computer simulation model to study the effects of an internal fault in a large permanent magnet ac synchronous motor. Permanent magnet motors are being considered as an alternative for ships with electric propulsion systems. In an electric propulsion system a large motor will be directly connected to a propulsion shaft. A windmilling shaft will continue to turn the rotor of the propulsion motor after the motor has been disconnected from its electrical power supply source. Following an internal electrical fault in a propulsion moto

APA, Harvard, Vancouver, ISO, and other styles

32

Colberg, Francis R. (Francis Rodolfo). "Damage analysis of internal faults in flux concentrating permanent magnet motors." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/36498.

Full text

Abstract:

Thesis (Nav. E.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1994, and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.<br>Includes bibliographical references (leaves 67-68).<br>by Francis R. Colberg.<br>M.S.<br>Nav.E.

APA, Harvard, Vancouver, ISO, and other styles

33

Kokko, V. (Voitto). "Condition monitoring of squirrel-cage motors by axial magnetic flux measurements." Doctoral thesis, University of Oulu, 2003. http://urn.fi/urn:isbn:9514269381.

Full text

Abstract:

Abstract The aim of this research work is to develop a tool for condition monitoring of squirrel-cage motors using axial magnetic flux measurements, and to design a diagnostics system for electrical motors. The basic theory of the measurements and systems was found through literature reviews and was further developed from the experimental results of this research work. Fluxgate magnetometers and Hall effect sensors are not reliable enough for condition monitoring purposes, but measurements by flux coil sensors can reach adequate reliability. The useful frequency area of the flux coil sensor i

APA, Harvard, Vancouver, ISO, and other styles

34

Yu, Chuang, and 余创. "Design, analysis and control of flux-mnemonic permanent magnet brushless machines." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B44769027.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Dema, Kleita. "Sensorless Control of Inner Permanent Magnet Synchronous Motor." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2019.

Find full text

Abstract:

In this thesis, a speed observer is implemented to estimate the position and the speed of an IPMSM by injecting a voltage signal at high frequency. The fundamental principle is to track the position error through a PLL loop, instead of aiming to estimating the actual position. Several simulations are carried out to assess the performance of the control system to parameter variations. The stability and the robustness of the control system is proved at different speeds.

APA, Harvard, Vancouver, ISO, and other styles

36

Campos, Rafael de Farias. "Controle vetorial do motor de indução monofásico." Universidade do Estado de Santa Catarina, 2008. http://tede.udesc.br/handle/handle/1895.

Full text

Abstract:

Made available in DSpace on 2016-12-12T17:38:36Z (GMT). No. of bitstreams: 1 rafael Campos resumo.pdf: 28958 bytes, checksum: c0306d4f10c2c1dab1c5e8750f4a0ea1 (MD5) Previous issue date: 2008-07-18<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The objective of this work is to study the rotor flux vector control applied to a single-phase induction motor drive. Initially, a mathematical model of the motor will be derived. The motor equations will be transformed to the stationary reference frame so that the angular dependency due to the asymmetry of the motor variables is eli

APA, Harvard, Vancouver, ISO, and other styles

37

Zhang, Jinhui. "ELIMINATING THE POSITION SENSOR IN A SWITCHED RELUCTANCE MOTOR DRIVE ACTUATOR APPLICATION." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_diss/343.

Full text

Abstract:

The switched reluctance motor (SRM) is receiving attention because of its merits: high operating temperature capability, fault tolerance, inherent shoot-through preventing inverter topology, high power density, high speed operation, and small rotor inertia. Rotor position information plays a critical role in the control of the SRM. Conventionally, separate position sensors, are used to obtain this information. Position sensors add complexity and cost to the control system and reduce its reliability and flexibility. In order to overcome the drawbacks of position sensors, this dissertation propo

APA, Harvard, Vancouver, ISO, and other styles

38

Saavedra, Ordóñez Harold. "Analysis and design of fault tolerant axial flux permanent magnet synchronous motors." Doctoral thesis, Universitat Politècnica de Catalunya, 2015. http://hdl.handle.net/10803/286323.

Full text

Abstract:

Electric vehicles (EVs) are attractive comparted to internal combustion engine powered vehicles due to several benefits, including low emissions, higher efficiency, less maintenance costs, stronger acceleration or lower fuel price, among others. EVs require traction motors with especial features, including high efficiency, high power and torque density, compactness, precise torque control, extended speed range. This work focuses on the analysis and optimal electromagnetic design of fault tolerant permanent magnet synchronous motors. The study is mainly based on the research of analytical desig

APA, Harvard, Vancouver, ISO, and other styles

39

Sheng-JIe-Bai and 白勝傑. "Single Phase Axial Flux Switching Motor Design." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/94te9g.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>電機工程研究所<br>103<br>Flux-switching motor is a newly developed motor which became popular in recent years. Its structure is similar to switched reluctance motor, its rotor and stator are all salient structure, armature winding and field winding are wound in the stator. There are two main advantages of this: one being its simple structure makes it stable and durable. Secondly, the heat in the motor can be dissipated easily, because all of excitation source are located in the stator. This research aims to design a single-phase axial switching flux motor. Its specification is model

APA, Harvard, Vancouver, ISO, and other styles

40

Lin, HAO-CHAO, and 林浩超. "Design of Flux Switched Permanent Magnet Motor." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/26022913079504330027.

Full text

Abstract:

碩士<br>南臺科技大學<br>電機工程系<br>105<br>Because of the rising issue of energy saving and carbon reduction, caused the price increase of rare-earth material. Then the flux-switched permanent magnet (FSPM) motor was applied gradually to the electric vehicles and hybrid electric vehicles for pollution-free. This can instead of the traditional interior permanent synchronous magnet motor or brushless DC motor with rare-earth material. It also can reduce much of volume and weight of the electric motorcycle. In this paper, first, we designed an inner router 12S/14P FSPM motor to replace the IPM and BLDC

APA, Harvard, Vancouver, ISO, and other styles

41

Liu, Chia-Hsi, and 劉佳熹. "Optimal Design of Axial Flux Wheel Motor." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/37661317774150218006.

Full text

Abstract:

碩士<br>國立臺灣大學<br>機械工程學系研究所<br>86<br>Recently, direct-driven wheel motors have been widely applied to electric vehicles, where transmission mechanism and gearbox are not necessary, and ther efore, mechanical loss can be avoided. Axial-flux permanent magnet (AFPM) moto rs can be designed and constructed to achieve a higher torque-to-weight ratio and motor efficiency, and are suitable for wheel motor applications. This pape r presents the procedure of an optimal design of axial-flux permanent motors. First, a

APA, Harvard, Vancouver, ISO, and other styles

42

Shih, Fu-Tsun, and 石富存. "DSP Based Brushless Motor Driver for Flux-Weakening Control." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/01652065119533621510.

Full text

Abstract:

碩士<br>國立中山大學<br>電機工程學系研究所<br>90<br>The design of this thesis intends to present that 120° Communication and Flux-Weakening Control techniques can be successfully applied to a Digital Signal Processor (DSP) together with the hardware structure of an inverter. Experimental results are shown that utilizing IPM Motor as Drive Motor of Electric Vehicle, 120° Communication techniques can reduce ripple torque and maintain the stability of output torque. Furthermore, through Phase advanced control motor, it enables a higher output torque during the mid-lower speed. Using Flux-Weakening Control helps m

APA, Harvard, Vancouver, ISO, and other styles

43

葉官�Q. "Shaft-sensorless stator flux orientation control of induction motor." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/95657843864014469942.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Zhao, Ying-Zhi, and 趙英志. "Development of a Direct-Drive Axial Flux Wheel Motor." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/55403443847631481348.

Full text

Abstract:

碩士<br>淡江大學<br>機械與機電工程學系碩士班<br>93<br>The purpose of this paper is to design a direct-drive axial flux wheel motor. The motor dimensions are determined based on the required rating. A set of magnetic circuit models are used to calculate the basic motor characteristics and the design which has the shortest axial length is selected. The static and dynamic performance of the designed motor are calculated and verified with a finite element software. A prototype motor and driver is built to verify the performance of the motor experimentally. Finally, a passive magnetic bearing is designed to reduce t

APA, Harvard, Vancouver, ISO, and other styles

45

Albert, Liu, and 劉大川. "DSP-Based Robust Stator-Flux-Oriented Induction Motor Drive." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/31743230857697587013.

Full text

Abstract:

碩士<br>中原大學<br>電機工程研究所<br>86<br>To solve the problem of detuning due to parameter variations in the currentdecoupled control of a direct stator-flux-oriented induction motor (IM) drive,two approaches for the rotor time-constant estimation are presented in thisstudy. The first approach is based on the model reference adaptive system (MRAS) using an energy function, and the second approach is based on thesliding mode technique. The estimated rotor time-constant is used to updatethe rotor time-constant in the current decoupled controller on line, whichis designed to decouple th

APA, Harvard, Vancouver, ISO, and other styles

46

Cheung, Cheng-Huei, and 張崢輝. "Analysis and Optimal Design of Axial Flux Wheel Motor." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/80838751761000541718.

Full text

Abstract:

碩士<br>國立臺灣大學<br>機械工程學研究所<br>88<br>Axial-flux permanent magnet (AFPM) motors can be designed to achieve a higher torque-to-weight ratio and motor efficiency, and are suitable for wheel motor applications. In permanent magnet reluctance motors, both magnets and electric steel are placed in the rotor. A reluctance torque component is added to total torque while there are steel in the rotor. This paper presents the procedure of an optimal design of APFM motor, including brushless dc motor and permanent magnet reluctance motors. First, a set of mathematical model is developed to describe the APFM d

APA, Harvard, Vancouver, ISO, and other styles

47

CHEN, GUAN-YI, and 陳管弋. "Predictive Control of Sensorless Switching Flux Motor Drive Systems." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/sb379v.

Full text

Abstract:

碩士<br>國立臺灣科技大學<br>電機工程系<br>105<br>This thesis investigates the rotor position estimation and predictive controller for a three-phase DC excited flux-switching sensorless drive system. First, a high frequency voltage is injected into the excitation winding. Then, the high frequency current at the excitation winding and the high frequency equivalent q-axis current at the armature winding are measured to determine the estimated rotor position. After that, a speed-loop predictive controller is implemented to achieve quick transient responses, good tracking ability

APA, Harvard, Vancouver, ISO, and other styles

48

He, Sheng-Han, and 何昇翰. "Flux Weakening Control of Permanent Magnet Synchronous Motor Drives." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/9fz7b6.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>電機工程系所<br>103<br>The main purpose of this thesis is to study the flux weakening control technique of permanent magnet synchronous motor drives. First, the mathematical model of PMSM is investigated. The motor parameters are used to design the current and speed controllers. To drive the inverter, Space Vector Modulation (SVM) technique is adopted to adjust the active switching time. Moreover, to extend the DC link voltage utilization, the modulation index is used to modify the magnitude or/and angle of voltage vector. In this thesis, the control techniques are verified through

APA, Harvard, Vancouver, ISO, and other styles

49

Tseng, Chun-Chih, and 曾群智. "Design Optimization of Axial Flux Motor by Genetic Algorithm." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/fuqygq.

Full text

Abstract:

碩士<br>國立臺北科技大學<br>電機工程系<br>106<br>This thesis investigates design optimization of an axial flux permanent magnet synchronous motor. Comparing to traditional radial flux motor, axial flux motor have the advantages of higher power density, torque density and space utilization. A finite element analysis software is used for machine design and performance analysis. The specification and dimensions of the initial design model is based on a 5.0 kW axial flux machine produced by EMRAX. After the initial design, machine structure parameters such as PM width, shoe width, and core high selected as the c

APA, Harvard, Vancouver, ISO, and other styles

50

Chang, Che-Wei, and 張哲維. "Design and Analysis of a Hybrid Switched Reluctance Motor with Axial Flux and Radial Flux." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/89172855420294220390.

Full text

Abstract:

碩士<br>國立交通大學<br>機械工程系所<br>102<br>Designing in-wheel motors for electric vehicles and hybrid electric vehicles has already attracted attention in recent years. The choice of motors for both electric vehicles and hybrids is generally determined by three factors: weight, efficiency and cost. Hence, the permanent magnet brushless motors that have the lightest weight and maximum efficiency are becoming the mainstream of electric vehicle drive systems nowadays. However, based on the cost of rare earth metals of the permanent magnet consideration in the future, reluctance motors without using rare ea

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!