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Dissertations / Theses on the topic 'Electric traction'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 July 2025

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1

Bögel, Ernst Wolfgang. "Battery modelling for traction applications." Thesis, Coventry University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.319841.

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2

Lai, Tsz-ming Terence. "Harmonic simulation of traction system /." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B21929543.

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3

Yuen, Kwok-hoo. "Probabilistic analysis of harmonics in railway traction system." Hong Kong : University of Hong Kong, 2000. http://sunzi.lib.hku.hk/hkuto/record.jsp?B22143099.

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4

阮國豪 and Kwok-hoo Yuen. "Probabilistic analysis of harmonics in railway traction system." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B31225561.

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5

Lai, Tsz-ming Terence, and 黎子明. "Harmonic simulation of traction system." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2000. http://hub.hku.hk/bib/B3122281X.

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6

Ewin, Nathan. "Traction control for electric vehicles with independently driven wheels." Thesis, University of Oxford, 2016. https://ora.ox.ac.uk/objects/uuid:dfc99786-fe17-4225-bd91-3ab83416981f.

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The necessity to reduce climate related emissions is driving the electrication of transportation. As well as reducing emissions Electric Vehicles (EV) have the capability of improving traction and vehicle stability. Unlike a conventional vehicle that uses a single Internal Combustion Engine (ICE) to drive one or both axles, an EV can have an electric machine driving each of the wheels independently. This opens up the possibility of using the electric machines as an actuator for traction control. In conventional vehicles the hydraulic brakes together with the ICE are used to actuate traction co
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7

Niu, Xin. "Traction machine winding and magnet design for electric vehicles." Thesis, University of Manchester, 2017. https://www.research.manchester.ac.uk/portal/en/theses/traction-machine-winding-and-magnetdesign-for-electric-vehicles(df8dfe16-71cb-48ee-b270-b90b3a24617e).html.

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Work had been established for traction machine design aspects in this research. The effect of multiphase design for Permanent Magnet (PM) machine was investigated. The electromagnetic characteristics of both 3-phase and 9-phase machine, along with different magnet designs, were simulated and analyzed by using the program developed during the process. The software used were FEMM and MATLAB. The iron loss for different designs was established, based on the analytical flux density obtained by 2-D stepping FEA method. The harmonic of flux waveform and rotating field were also considered for differ
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8

Van, Schalkwyk Daniel Jacobus. "Dynamics and Energy Management of Electric Vehicles." Thesis, Link to the online version, 2007. http://hdl.handle.net/10019/725.

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9

Henning, Pieter Hendrik. "Control of a 1.5 MW active power filter and regeneration converter for a Spoornet DC traction substation." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2340.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.<br>Although regenerative braking has been in used in railway systems for a long time already, the energy generated was dissipated in resistor banks. The rapid advances in the power electronics field, accompanied by the development of faster and higher power switching devices in recent years, now make it possible to convert the regenerated electrical energy from DC to AC, which can then be injected into the Eskom grid. A 1.5 MW full scale prototype system was built, installed and tested in a Spoorne
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10

Karlsson, Mattias, and Sebastian Johansson. "Evaluation of Traction Control Systems for an Electric Forklift Truck." Thesis, Linköpings universitet, Fordonssystem, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-176552.

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This thesis evaluates different controllers for traction control on an electric forklift truck and has been done in cooperation with Toyota Material Handling Manufacturing Sweden. The need for a traction control system has increased with the introduction of lithium-ion batteries replacing the older lead-acid batteries, reducing the battery weight and therefore the downward force on the driving wheel increasing the risk for slip. The forklift truck was modelled using Simulink and validated by experiment. Different possible control strategies were investigated and three were chosen for implement
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11

Hajihosseinlu, Amin. "Traction control of an electric vehicle with four in-wheel motors." IEEE, 2015. http://hdl.handle.net/1993/30601.

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This thesis evaluates an electric vehicle with four independently-controlled in-wheel electric motors. The electric vehicle investigated in this work requires a main con- troller that not only coordinates with each individual motor drive controller, but is also needed to distribute torque and power to each in-wheel motor. The controller adjusts the speed of each motor to the driving conditions according to the require- ments and emulates the behavior of a mechanical di erential. Then, in addition to the electronic di erential controller, a simple yet robust control strategy for maximiz-
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12

Roebuck, C. A. "Testing and frequency response analysis of an electric vehicle traction drive." Thesis, Coventry University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.384599.

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13

Knischourek, Eva [Verfasser]. "Part Load Efficiency Improvement of Electric Vehicle Traction Inverters / Eva Knischourek." Aachen : Shaker, 2018. http://d-nb.info/1188550292/34.

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14

Chen, Xiao. "Modelling and design of permanent-magnet machines for electric vehicle traction." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/11512/.

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Electrical machines with rare-earth permanent-magnets (PMs) exhibit high torque density and good efficiency over a wide operation range. However, the high cost and limited reserves of the rare-earth material makes it less sustainable to develop this machine technology for electric vehicle (EV) traction. To improve machine performance and reduce PM usage, this thesis investigates a number of issues pertinent to modelling and design of PM machines for EV traction applications. A four-wheel vehicle dynamic model is established to quantify the influence of tyre slip on machine sizing, and thus an
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15

mezzarobba, mario. "Study of innovative electric machines for high efficiency vehicular traction applications." Doctoral thesis, Università degli studi di Padova, 2013. http://hdl.handle.net/11577/3422648.

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This thesis collects some of the work accomplished during the PhD research activity focused on the study of special electric machines for vehicle traction applications. The work is divided into due parts. The rst part is mainly technological and covers some studies and experimental activities concerning new technical solutions to solve some common issues in operation of electric motors for automotive use, namely ux weakening and cogging torque. The second part has a more theoretical nature and focuses on some methods for electric machine modeling and analysis which has been developed to facili
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16

Aghaei, Hashjin Saeid. "Control of a Traction/Charging Structure for a Hybrid Electric Vehicle." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0117.

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L’électrification des moyens de transport est considérée comme l’une des solutions pertinentes pour réduire les émissions des gaz à effet de serre. En effet, les nouvelles normes européennes imposent des limites de plus en plus restrictives sur les émissions de CO2 par km. Ceci est un enjeu industriel important pour les constructeurs d’automobiles. Par conséquent, ces derniers s’orientent vers les véhicules hybrides et électriques dans lesquels une chaine de traction électrique est présente. Celle-ci est constituée d’une machine électrique, alimentée par un convertisseur statique d’électroniqu
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17

Lao, Keng Weng. "A novel electric traction power supply system using hybrid parallel power quality compensator." Thesis, University of Macau, 2011. http://umaclib3.umac.mo/record=b2550461.

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18

Vujatovic, Davor. "Power Quality Improvement using FACTS Devices with Particular Emphasis on Electric Traction." Thesis, City University London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.524710.

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19

Cornwell, William Lincoln. "Switching Frequency Effects on Traction Drive System Efficiency." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/34983.

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Energy demands are steadily increasing as the world's population continues to grow. Automobiles are primary transportation means in a large portion of the world. The combination of fuel consumption by automobiles along with the shrinking fossil fuel reserves makes the development of new more energy efficient technologies crucial. Electric vehicle technologies have been studied and are still being studied today as a means of improving fuel efficiency. To that end, this work studies the effect of switching frequency on the efficiency of a hybrid electric vehicle traction drive, which contain
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20

Goss, James. "The design of AC brushless permanent magnet motors for electric vehicle traction applications." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.685970.

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Brushless permanent magnet machines are a preferred topology for electric vehicle traction due to their inherent high efficiencies and excellent power densities. Electric and hybrid vehicles are a rapidly growing sector in the global automotive industry due to concerns regarding man made climate change, pollution in urban areas and the rising and volatile cost of fossil fuels. This research thesis investigates the design of brushless permanent magnet motors for electric vehicle applications from a technical and commercial perspective. A set of computationally efficient techniques are presented
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21

Koc, Mikail. "Efficiency optimised control of interior mounted permanent magnet machines for electric vehicle traction." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/15880/.

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Electric vehicles (EV) are playing a momentous role to the wide society as they facilitate the use of clean energy technologies. Interior mounted permanent magnet (IPM) synchronous machines are commonly employed in EVs owing to their superior characteristics such as high efficiency and power density and a wide field weakening operating range. High efficiency motor operation extends EVs drive range with the same amount of energy. Advanced control techniques to achieve high efficiency operation and smooth output torque production are, therefore, highly important areas to be researched. This thes
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22

Abdulaziz, Imtithal Mohammed. "Mathematical modelling and computer simulations of induced voltage calculations in AC electric traction." Thesis, Edinburgh Napier University, 2003. http://researchrepository.napier.ac.uk/Output/3845.

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23

Chen, Liang. "Modelling and design optimisation of permanent magnet machines for electric vehicle traction applications." Thesis, University of Sheffield, 2016. http://etheses.whiterose.ac.uk/16962/.

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While the fuel resource scarcity and the environment crisis are becoming two of the major problems for the human society in the new century, in the context that the on-road transport is the largest energy-consuming society sector, electrical vehicles (EVs) serving resource-sustainable environmentally-clean transport attract increasing attention. Permanent magnet (PM) traction machines with high torque and power densities, and high energy efficiency gain great interest from the engineer and industry communities. Jointly with the chances, fresh challenges are brought by EVs to PM machine designe
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24

Pires, Cassiano Lobo. "Simulação do sistema de tração elétrica metro-ferroviária." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-22042007-212920/.

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A proposta do presente trabalho é a simulação do sistema de tração elétrica metroferroviária alimentada em corrente contínua. Para isto, o trabalho é iniciado com uma caracterização das instalações móveis e fixas do sistema de tração elétrica. Sobre as instalações móveis, o trabalho dedica um capítulo sobre a dinâmica do movimento e outro sobre os acionamento alimentados em corrente contínua. Sobre as instalações fixas, um capítulo trata dos elementos e configurações da rede de alimentação além de trazer cálculos simples da queda de tensão. Outro capítulo é dedicado exclusivamente ao circuito
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25

Kostenko, I. "Increase of efficiency of process of start-up of traction electric motors of the rolling stock of city electric transport." Thesis, Вид-во СумДУ, 2010. http://essuir.sumdu.edu.ua/handle/123456789/13041.

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26

BONERA, EMANUELE. "Electric traction for a multi-motor vehicle: Research for active safety and energy efficiency." Doctoral thesis, Università degli studi di Brescia, 2022. http://hdl.handle.net/11379/563082.

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Lo scopo di questa ricerca è quello di studiare la trazione elettrica multi motore che è già applicata con successo su alcune auto sportive di alto livello completamente elettriche. Oltre ai ben noti vantaggi dei gruppi motopropulsori elettrici in termini di impatto ambientale, essi sono caratterizzati da una curva di coppia che, in applicazioni automobilistiche, offre ampie opportunità per un migliore controllo dinamico dei veicoli e sicurezza attiva. È anche possibile personalizzare la risposta del veicolo agli input del conducente in base alle esigenze del guidatore ed alle condizioni ambie
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27

Nguyen, Binh Phuong Nhan. "Electrode formulation of Si an LiNi0,5Mn1,5O4 for Li-on Battery applied to electric traction." Nantes, 2014. https://archive.bu.univ-nantes.fr/pollux/show/show?id=fe813e36-3527-486a-9857-40aa272b3812.

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La batterie lithium-ion est l’une des technologies de stockage de l’énergie les plus prometteuses pour permettre le développement des transports propres. Dans ce but il est cependant nécessaire de rechercher des matériaux d’électrode de batterie lithium-ion adaptés et qui satisfont différentes conditions de : (i) fortes capacités spécifique (Ah. Kg-1) et volumétrique (Ah. L-1); (ii) grande différence de potentiel entre les deux électrodes ; (iii) haute sécurité et respect de l’environnement. Ainsi, une transition du graphite au silicium de forte capacité et des composés à base de cobalt ou de
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28

Gazdac, Ana Maria. "Design and control of the dual rotor permanent magnet induction machine for electric traction." Amiens, 2013. http://www.theses.fr/2013AMIE0109.

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Cette thèse propose un nouveau concept de machine électrique, la Machine Asynchrone à Aimants Permanents à double rotor dite machine hybride (MASH) comme une alternative aux machines existantes pour les applications de traction électrique. Le concept de la MASH, son principe de fonctionnement, ses avantages et inconvénients par rapport aux machines classiques ainsi que la démarche méthodologique de conception et dimensionnement sont étudiés. Deux méthodes analytiques de dimensionnement sont ainsi proposées soit pour la première basée sur la géométrie du stator (encombrement donné) soit pour la
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29

Fuchs, Heinrich Daniel. "Development and implementation of a 1.5 MW inverter and active power filter system for the injection of regenerated energy in a Spoornet traction substation." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/1751.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.<br>Spoornet is one of South-Africa’s largest railway companies. It is very important to operate the railway system as cost effectively as possible. A large portion of the railway operates from 3 kV DC traction supplies. One method of cost saving is to utilise the regenerative braking mechanism of the electric trains.
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30

Han, Lin 1982. "A comparison of permanent magnet motor structures for traction drive applications in hybrid electric vehicles /." Thesis, McGill University, 2008. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=116015.

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This thesis presents a detailed comparison of the torque-speed characteristics of three permanent magnet synchronous machine designs based on how the magnets are mounted. The machines investigated are an interior permanent magnet machine, an interior-rotor surface-mounted machine and an exterior-rotor surface-mounted machine. They are designed for traction drives in hybrid electric vehicles. Two sets of comparisons based on the same machine volume and starting torque are performed. Important issues, such as machine mass and cost, cogging torque, and flux-weakening capability are addressed. Com
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31

Kouns, Heath. "Analysis of Performance Characteristics of Electric Vehicle Traction Drive in Low Speed/Low Torque Range." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/36287.

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In a world with a growing population there is a trend toward higher and higher energy usage. Because of the cost involved in producing extra energy, there is a need for more efficient usage of the energy that is already available. The issue of efficiency rings home especially clear with electric motors. Although induction motors are used in many different applications, the motors used in electric vehicles must be able to generate a large starting torque as well as operate over a wide speed range. This work analyzes the restrictions placed on the motor and inverter drive system. It also lo
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32

Kant, Krishan S. M. Massachusetts Institute of Technology. "Finite element simulation based design and optimization of electric motors for EV/HEV traction application." Thesis, Massachusetts Institute of Technology, 2019. https://hdl.handle.net/1721.1/122551.

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Thesis: S.M., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2019<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 125-129).<br>The launch of so many commercial electric vehicles shows the effort toward pollution reduction and curtailing greenhouse gas emissions. A design for an electric vehicle does not just requires the electrical system to be efficient in particular; but it is required to perform in all extreme cases of thermal and mechanical stresses. And it is made possible by all the research and dev
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33

Sarrazin, Benoît. "Optimisation d'une chaîne de traction pour véhicule électrique." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00808946.

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Les éléments constituant la chaîne de traction sont le plus souvent dissociés et indépendants entre eux (pack de batteries, convertisseur de traction et moteur). L'utilisation des convertisseurs en cascade en tant que convertisseurs de traction a été le coeur de ces travaux de thèse. Les performances énergétiques des convertisseurs en cascade et de l'onduleur de tension classique ont été comparées sur un cycle de conduite normalisé pour différentes configurations sur les convertisseurs de puissance (niveaux de tension mis en jeu dans la chaîne de traction, variation du nombre d'onduleurs conne
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34

Papazian, Jean-Charles. "Optimisation de la chaine de traction d'un véhicule électrique." Grenoble INPG, 1996. http://www.theses.fr/1996INPG0100.

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Les objectifs de ce travail consistent à diminuer la consommation énergétique d'un véhicule électrique. Après avoir modélisé la chaîne de traction incluant un moteur asynchrone, un onduleur triphasé et sa commande ainsi que la mécanique, deux voies d'optimisation sont abordais. La première consiste à optimiser la commande en amont de l'onduleur. Différentes familles de commandes sont alors développées. La première commande optimise un critère sur une durée instantanée. Elle a été simulée, puis implantée sur véhicule. Elle apporte un gain d'autonomie significatif (quelques pourcents) et diminue
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35

Zinzani, Michele. "Electric drives for ORTO - Orchard Rapid Transit Operation." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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This thesis is focused on a novel agricultural technique for orchard cultivations that allows to perform automatic and fossil fuel free cultivation operations. More specifically, the aim of this thesis work is to study and implement the electric traction system and control the vehicle that performs the automatic operations. Starting from the analysis of each single component of the traction system, the control of the mobile platform will be then performed. After a first control of the mobile platform in no load conditions, the implementation of the dynamic model will be performed in the Simu
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36

Chin, Yung-Kang Robert. "A permanent magnet traction motor for electric forklifts : design and iron loss analysis with experimental verifications /." Stockholm : Division of Electrical Machines and Power Electronics, School of Electrical Engineering, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4241.

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37

Carraro, Enrico. "Analysis and design procedures of permanent magnet machines for hybrid electric vehicles and rail-traction applications." Doctoral thesis, Università degli studi di Padova, 2017. http://hdl.handle.net/11577/3421927.

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The interest for Permanent Magnet (PM) synchronous machines has increased in the recent years. This is mainly due to important developments in the field of the electrical machine design, control systems and PM technology. These factors enable the possibility of designing electrical machines with a high torque density, power density, efficiency, low cost with wide degrees of freedom. Such requirements are highly sought in the automotive field, especially following the increasingly stringent energy efficiency and air pollution emissions policies. These conditions are pushing forward the transiti
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FANESI, MARIKA. "Study of intelligent test bench for development and project of electric systems for traction of innovative vehicles." Doctoral thesis, Università Politecnica delle Marche, 2021. http://hdl.handle.net/11566/287759.

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Negli ultimi anni l'industria automobilistica richiede, sempre di più, la possibilità di testare prototipi di veicoli in condizioni operative reali. Spinta dal mercato automobilistico, l'elettrificazione dei veicoli ha assunto un ruolo significativo. Questa tesi presenta tecniche e metodologie innovative applicate al veicolo elettrico e al banco di test. La combinazione del modello dinamico del veicolo con l'intero sistema del banco di prova consente di raggiungere elevate prestazioni e migliorarne la precisione. La caratterizzazione sperimentale del motore elettrico e del motore endotermico v
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Loubeau, Florian. "Analyse des phénomènes de vieillissement des matériaux d’isolation électrique de machines de traction électrique." Thesis, Université Grenoble Alpes (ComUE), 2016. http://www.theses.fr/2016GREAT086/document.

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La conception et la validation d’un nouveau moteur électrique nécessitent d’examiner les comportements dans le temps des différents matériaux d’isolation électrique face aux multiples contraintes qu’ils subissent. Les caractérisations au cours des vieillissements thermiques, hygrothermiques, thermomécaniques et électriques, ont porté sur les matériaux seuls , avec un focus particulier sur les résines d’imprégnation : une à base de polyesterimide et une à base d’époxy chargé, mais également sur les systèmes d’isolation électrique complets. Les autres matériaux sont l’émail des fils de cuivre, c
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Kaloun, Adham. "Conception de chaînes de traction hybrides et électriques par optimisation sur cycles routiers." Thesis, Ecole centrale de Lille, 2020. http://www.theses.fr/2020ECLI0019.

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La conception des chaînes de traction hybrides est une tâche complexe, qui fait appel à des experts de différents domaines s'appuyant sur des compétences et des outils distincts. En plus de cela, la recherche d'une solution optimale nécessite un retour système. Cela peut être, selon la granularité des modèles de composants, très coûteux en temps de calcul. Ceci est d'autant plus vrai lorsque la performance du système est déterminée par sa commande, comme c'est le cas du véhicule hybride. En fait, différentes possibilités peuvent être sélectionnées pour fournir le couple requis aux roues pendan
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Kaloun, Adham. "Conception de chaînes de traction hybrides et électriques par optimisation sur cycles routiers." Thesis, Centrale Lille Institut, 2020. http://www.theses.fr/2020CLIL0019.

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La conception des chaînes de traction hybrides est une tâche complexe, qui fait appel à des experts de différents domaines s'appuyant sur des compétences et des outils distincts. En plus de cela, la recherche d'une solution optimale nécessite un retour système. Cela peut être, selon la granularité des modèles de composants, très coûteux en temps de calcul. Ceci est d'autant plus vrai lorsque la performance du système est déterminée par sa commande, comme c'est le cas du véhicule hybride. En fait, différentes possibilités peuvent être sélectionnées pour fournir le couple requis aux roues pendan
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42

Chandra-Ambhorn, Somrerk. "Reactivity and surface modification of stainless steels used as electric interconnectors in high temperature solid oxide fuel cells." Grenoble INPG, 2006. http://www.theses.fr/2006INPG0104.

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Nous évaluons les aciers inoxydables ferritiques (AISI 441, AISI 444, et Crofer 22 APU) pour leur application comme éléments d'interconnexion électrique dans les SOFCs. Nous nous sommes focalisés sur la cinétique de croissance, la résistance surfacique de contact (ASR) et l'adhérence des couches d'oxyde thermique développées entre 700 et 900°C. La nuance AISI 441 a été sélectionnée comme étant compétitive pour cette application mais il est nécessaire d'améliorer l'ASR de cette dernière. Nous avons ensuite évalué l'influence de diverses modifications de surface de cette nuance en utilisant un d
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Fernández, Palomeque Efrén Esteban. "Optimization of a CSI inverter and DC/DC elevator with silicon carbide devices, for applications in electric traction systems." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/666485.

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The applications of electric traction systems currently focus on developing technologies with greater energy efficiency and lower environmental impact. Manufacturers of hybrid and electric vehicles are looking for ways to improve and optimize the efficiency of their models. Manufacturers are looking for more efficient and more compact converter topologies. The use of new band gap materials in the construction of these topologies has generated many debates and new lines of research especially in the optimization of these topologies. The silicon carbide (SiC) based switching devices provide sig
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44

Hu, Zheng [Verfasser]. "Optimization-based robust control for high-performance torque vectoring in electric vehicles operated by induction traction motors / Zheng Hu." Aachen : Shaker, 2017. http://d-nb.info/1138178713/34.

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Schwarzer, Michael [Verfasser], Tobias [Akademischer Betreuer] Melz, and Christian [Akademischer Betreuer] Beidl. "Structural Dynamic Modeling and Simulation of Acoustic Sound Emissions of Electric Traction Motors / Michael Schwarzer ; Tobias Melz, Christian Beidl." Darmstadt : Universitäts- und Landesbibliothek Darmstadt, 2017. http://d-nb.info/113326204X/34.

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46

Pires, Cassiano Lobo. "Simulação de marcha de composição ferroviária acionada por motores de indução e PWM." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-02052002-201047/.

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O presente trabalho traz o estudo da simulação do desempenho (simulação de marcha) de uma composição ferroviária acionada através de inversores de tensão e motores de indução e alimentada em corrente contínua, um tipo de material rodante recentemente introduzido no Brasil. Tal fato faz com que seja necessário o desenvolvimento de métodos de análise das características deste tipo de material, objetivo maior deste trabalho. A metodologia de análise aqui desenvolvida tem como base a teoria da tração elétrica para o equacionamento da dinâmica do movimento, a teoria do controle do motor de indução
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47

Ristagno, Baptiste. "Machines à commutateur mécanique pour traction automobile : modélisation et optimisation." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0122.

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Les travaux de recherches menés dans cette thèse s'inscrivent dans un contexte d'électrification du secteur automobile en réponse aux préoccupations environnementales. Cette thèse concerne la modélisation et l'optimisation de machines à commutateur mécanique pour la motorisation électrique de petits véhicules mono- ou bi- place. Les machines à collecteur représentent une alternative crédible par leur compétitivité, leur robustesse et leur fiabilité principalement dues à l'absence d'électronique de puissance. Néanmoins, elles nécessitent des dispositifs de compensation et d'aide à la commutatio
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48

Raisemche, Aziz. "Commande tolérante aux défauts d’une chaine de traction d’un véhicule électrique." Thesis, Paris 11, 2014. http://www.theses.fr/2014PA112342/document.

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Les diverses normes internationales obligent les constructeurs automobiles à optimiser les chaînes de propulsion conventionnelles mais surtout à développer d’autres alternatives de motorisation dont l’une des plus prometteuses est le véhicule électrique. Néanmoins ces nouvelles propulsions doivent garantir les mêmes performances et le même niveau de sureté de fonctionnement (fiabilité et sécurité en l’occurrence). La chaîne de propulsion électrique est conçue autour d’un nombre important de constituants (machine électrique, capteur(s), convertisseur(s) de l’électronique de puissance, etc.) qui
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49

Caillard, Pierre. "Conception par optimisation d'une chaine de traction électrique et de son contrôle par modélisation multi-physique." Thesis, Ecole centrale de Lille, 2015. http://www.theses.fr/2015ECLI0025/document.

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Les travaux de cette thèse portent sur la méthodologie de conception par optimisation d’une chaine de traction de véhicule électrique en phase amont du développement. Dan une première partie, nous avons abordé le contexte environnemental du transport afin d poser la problématique de la conception systémique d’une chaine de traction électrique composée d’une transmission, une machine électrique asynchrone, un onduleur et un batterie. Le cas test est celui du Renault Twizy. La seconde partie explore les possibilité de modélisation puis détaille les modèles analytiques qui ont été choisis pour ch
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50

Cantegrel, Martin. "Vers une conception optimale des chaînes de traction ferroviaire." Phd thesis, Ecole Centrale de Lille, 2012. http://tel.archives-ouvertes.fr/tel-00794532.

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Cette thèse aborde la conception optimale des chaînes de traction par l'exemple d'une chaîne de traction pour métro. Les données d'entrée de la conception d'une chaîne de traction sont la performance attendue et l'encombrement des équipements nécessaires. Pour aider le concepteur, l'outil informatique donne aujourd'hui la possibilité de construire une grande variété de modèles. D'autre part, les algorithmes d'optimisation permettent de trouver les configurations optimales. Ces possibilités ont été exploitées au cours de ce travail. Les modèles développés permettent d'estimer un large nombre de
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