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Dissertations / Theses on the topic 'DC machine'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Moussi, A. "The microprocessor control of a DC machine." Thesis, University of Nottingham, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.334974.

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2

ACAR, DELAL, and KARIN SVENSSON. "The Claw Machine Tivoliautomaten." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279813.

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Claw machines have been around for about a century spreading joy and entertainment to people of all ages. They are usually seen in amusement parks and malls. In this Bachelors Thesis, one version of a claw machine will be constructed. Different constructing solutions and motors will be discussed for an easy and optimal claw machine that meet all the requirements given in the project. This report is divided into four parts, consisting of introduction, theory, construction of the machine and results. The first part is an introduction where some background information and delimitations of the pro

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3

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

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4

Swint, Ethan Baggett. "DC Reluctance Machine — A Doubly-Salient Reluctance Machine with Controlled Electrical and Mechanical Power Ripple." Diss., Virginia Tech, 2012. http://hdl.handle.net/10919/27717.

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Doubly-Salient Reluctance Machines (DSRMs) sidestep many of the issues with permanent magnet and induction machines and embody the lowest cost and simplest manufacturing of the motor technologies. Major drawbacks to RMs have been (1) the need for failure-prone electrolytic capacitors, (2) large torque ripple, and (3) acoustic noise. Conventionally, these drawbacks have been addressed independently either through (1) excitation control or (2) machine design, but not as a holistic system or solution. This disseratation presents a design for high-efficiency low-cost RM while producing smooth outp

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5

Kou, Martin. "Energy Harvesting from Elliptical Machines: DC-DC Converter Design Using SEPIC Topology." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/753.

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Cal Poly’s ongoing Energy Harvesting from Exercise Machines (EHFEM) project is a very convenient and cost-effective way for generating DC power from physical exercise and sending it back to the electrical grid as AC power, providing a renewable energy source for the future. The EHFEM project consists of numerous subprojects involving converting different types of exercise machines for power generation. This project is a continuation of one of the previous subprojects, specifically involving an elliptical machine, and focuses on improving system functionality at different machine settings witho

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6

Liu, Yu. "SLOTLESS SIX-PHASE BRUSHLESS DC MACHINE DESIGN AND STEPPING VECTOR CONTROL." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1440086585.

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7

Hines, Jonathan T. "Emulation of Wind Power with a DC Machine to Provide Input to a Doubly-Fed Induction Machine." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/6808.

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The behavioral modeling of a separately excited direct current (DC) motor as a prime mover for a doubly-fed induction machine (DFIM) is studied in this thesis. The output torque of the DC motor is computed in the simulation under controlled parameters. The input to the DFIM, used as a doubly-fed induction generator (DFIG), is taken from the DC motor. In theory, the combination of the two machines can be used to emulate various wind patterns and their expected electrical returns for a given DFIM-based wind turbine. A Simulink model was created to appropriately emulate the operation of the DC ma

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8

Al-Aubidy, Kasim Mousa A. "Rotor position sensing and microprocessor control of a permanent magnet machine." Thesis, University of Liverpool, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.257508.

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9

Mohler, Michael Augustine Gaylord Mihalcea Rada F. "The enhancement of machine translation for low-density languages using web-gathered parallel texts." [Denton, Tex.] : University of North Texas, 2007. http://digital.library.unt.edu/permalink/meta-dc-5140.

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10

Fares, Adnan. "Development of advanced architectures of power controllers dedicated to Ultra High Switching Frequency DC to DC converters." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS195.

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La sophistication grandissante des dispositifs intelligents ultra-portatifs, tels que les smartphones ou les tablettes,crée un besoin d'amélioration des performances des organes de conversion de puissance.La tendance des technologies d'acheminement de puissance évolue progressivement vers une fréquence plus élevée, une meilleure densité d'intégration et une plus grande flexibilité dans les schémas d'asservissement. La modulation dynamique de tension est utilisée dans les circuits intégrés de gestion de puissances(DVS PMICs)des transmetteurs RF alors que la modulation DVFS est utilisée dans les

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11

Karim, A. H. M. "Gate-Turn-Off thyristor commutation of DC machines : the development of a rotating DC machine with static commutation of armature coil current using Gate-Turn-Off thyristor devices." Thesis, University of Bradford, 1986. http://hdl.handle.net/10454/3371.

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The thesis Is concerned with the development of a separately excited DC machine In which gate turn-off thyristor devices with their associated firing and protective circuits are used to provide the static commutation of armature coil current. The developed machine has Its armature winding with 24 tapping points located on the stator and Interconnected In "Lop" configuration. The Initiation of the conduction periods of armature switching devices Is defined by a digital control logic circuit. In conjunction with an Incremental rotary encoder which provides the necessary feedback Information rela

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12

Ganesan, Rajesh. "Process monitoring and feedback control using multiresolution analysis and machine learning." [Tampa, Fla] : University of South Florida, 2005. http://purl.fcla.edu/usf/dc/et/SFE0001248.

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13

Gule, Nkosinathi. "Analysis and evaluation of brush-DC equivalent controlled multiphase cage induction machine drive." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6489.

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Thesis (PhD (Electrical and Electronic Engineering))--University of Stellenbosch, 2011.<br>ENGLISH ABSTRACT: The multiphase induction machine drive has been under investigation for the last half century. Although it offers several attractive advantages over the conventional three-phase induction machine drive, it is restricted to highly specialised applications. One aspect of the multiphase induction machine drive is the complexity of the control algorithm for decoupled flux and torque control. The complexity, arising from the required coordinate transformations, increases with increase in

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14

Sysoeva, Viktoriia. "Hidden Markov Model-Supported Machine Learning for Condition Monitoring of DC-Link Capacitors." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1595978044573618.

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15

Coxson, David Rittenhouse. "The District of Columbia Waterfront Atelier (DCWA): A Machine for the Arts." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/33818.

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In an attempt to address the accessibility of the arts in Washington, D.C. and also to engage the underutilized waterfront, this thesis proposes a cultural center for the arts that at once links the building with the water, but which also becomes a source of excitement for the city. The arts center will act as an atelier that mixes education, production and exhibition of fine arts, theater, dance and music, with the goal being to achieve a space alive with activity and shared energy. Typically, buildings for art education have followed a model that emphasizes interaction by forcing artists of

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16

Lerch, Christopher Allen. "Non-invasive recovery of gear rotation from machine vibration dc by Christopher Allen Lerch." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/35019.

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17

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

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18

Pobi, Shibendra. "A study of machine learning performance in the prediction of juvenile diabetes from clinical test results." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001671.

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19

Suppharangsan, Wisaruda. "A new switching technique for minimisation of DC-link capacitance in switched reluctance machine drives." Thesis, University of Sheffield, 2013. http://etheses.whiterose.ac.uk/14610/.

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In a switched reluctance (SR) drive, the transfer of the de-fluxing energy in stator windings back to the dc-link results in a large dc-link capacitance. This limits its applications where weight and size of the drive are restricted. This thesis describes a control technique for the dc-link capacitance minimisation in an SR drive. The proposed control technique maintains the constant power transfer between the de supply and the H-bridge converter. The average dc-link current over a switching period is kept constant. When the output of the integrator, i.e., the average dc-link current, reaches

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20

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

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

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21

Noon, John Patrick. "Development of a Power Hardware-in-the-Loop Test Bench for Electric Machine and Drive Emulation." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/101498.

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This work demonstrates the capability of a power electronic based power hardware-inthe- loop (PHIL) platform to emulate electric machines for the purpose of a motor drive testbench with a particular focus on induction machine emulation. PHIL presents advantages over full-hardware testing of motor drives as the PHIL platform can save space and cost that comes from the physical construction of multiple electric machine test configurations. This thesis presents real-time models that were developed for the purpose of PHIL emulation. Additionally, real-time modeling considerations are presented as

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22

Tarasso, Markus, and Daniele Usai. "Utveckling av kontrollrumsstyrning : För DC-generator genom PLC och HMI." Thesis, Högskolan i Borås, Akademin för textil, teknik och ekonomi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hb:diva-22104.

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Projektet går ut på att ersätta den befintliga styrningen av en DC-generator för 1200 kV med en fjärrstyrning från kontrollrummet via optolänk. Den nya styrningen ska utgöras av ett PLC-system (Programmable Logic Controller) som manövreras med hjälp av ett HMI – Human Machine Interface. Bakgrunden till projektet härrör från att den befintliga styrutrustningen är opålitlig samt styrs i en farlig miljö. Rapporten går igenom hur befintlig styrutrustning fungerar samt dess ingående komponenter, hur ett PLC-system fungerar med dess bakgrund och olika programmeringsspråk. Även programmeringen och by

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23

Godoi, Dias Milena Sabrina [Verfasser]. "Discrete time sliding mode control strategies applied to a multiphase brushless DC machine / Milena Sabrina Godoi Dias." Kassel : Kassel University Press, 2017. http://d-nb.info/1138291099/34.

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24

Remsen, Andrew Walker. "Evolution and field application of a plankton imaging system." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002429.

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25

Banfield, Robert E. "Learning on complex simulations." [Tampa, Fla.] : University of South Florida, 2007. http://purl.fcla.edu/usf/dc/et/SFE0002112.

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26

Perols, Johan L. "Detecting Financial Statement Fraud: Three Essays on Fraud Predictors, Multi-Classifier Combination and Fraud Detection Using Data Mining." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002486.

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27

Petruška, Ľubomír. "Simulace řídicích struktur elektromechanických systémů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218310.

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Construction of motor models is the main topic of this project. Mathematical characterization of AC machine, permanent magnet synchronous motor, separately-excited DC motor, series-wound DC motor, permanent magnet DC motor, switched reluctance motor is also described. Design of models is based on mathematical description of particular motors. Models are created in Matlab Simulink. Each model is implemented in continuous and also in discrete time variant. Selected models are implemented also on processor from Freescale 56F800E Hybrid Controller family. Each model has individual graphic user int

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28

Lovgren, Nicholas Keith. "Energy Harvesting From Exercise Machines: Forward Converters with a Central Inverter." DigitalCommons@CalPoly, 2011. https://digitalcommons.calpoly.edu/theses/520.

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This thesis presents an active clamp forward converter for use in the Energy Harvesting From Exercise Machines project. Ideally, this converter will find use as the centerpiece in a process that links elliptical trainers to the California grid. This active clamp forward converter boasts a 14V-60V input voltage range and 150W power rating, which closely match the output voltage and power levels from the elliptical trainer. The isolated topology outputs 51V, higher than previous, non-isolated attempts, which allows the elliptical trainers to interact with a central grid-tied inverter instead

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29

Ho, Vinh Thanh. "Techniques avancées d'apprentissage automatique basées sur la programmation DC et DCA." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0289/document.

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Dans cette thèse, nous développons certaines techniques avancées d'apprentissage automatique dans le cadre de l'apprentissage en ligne et de l'apprentissage par renforcement (« reinforcement learning » en anglais -- RL). L'épine dorsale de nos approches est la programmation DC (Difference of Convex functions) et DCA (DC Algorithm), et leur version en ligne, qui sont reconnues comme de outils puissants d'optimisation non convexe, non différentiable. Cette thèse se compose de deux parties : la première partie étudie certaines techniques d'apprentissage automatique en mode en ligne et la deuxième

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30

Fefilatyev, Sergiy. "Detection of marine vehicles in images and video of open sea." [Tampa, Fla] : University of South Florida, 2008. http://purl.fcla.edu/usf/dc/et/SFE0002609.

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31

Ho, Vinh Thanh. "Techniques avancées d'apprentissage automatique basées sur la programmation DC et DCA." Electronic Thesis or Diss., Université de Lorraine, 2017. http://www.theses.fr/2017LORR0289.

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Dans cette thèse, nous développons certaines techniques avancées d'apprentissage automatique dans le cadre de l'apprentissage en ligne et de l'apprentissage par renforcement (« reinforcement learning » en anglais -- RL). L'épine dorsale de nos approches est la programmation DC (Difference of Convex functions) et DCA (DC Algorithm), et leur version en ligne, qui sont reconnues comme de outils puissants d'optimisation non convexe, non différentiable. Cette thèse se compose de deux parties : la première partie étudie certaines techniques d'apprentissage automatique en mode en ligne et la deuxième

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32

Kachlík, Jan. "Model elektrického vozidla v programu SIMULINK/SIMSCAPE." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219034.

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The topic of this diploma thesis is mathematical model of electric vehicle. The traction drive consists of Li-Ion battery, free-phase DC/AC converter and permanent magnet synchronous machine. The main goal of the thesis is development of function model and making simulations in SIMULINK/SIMSCAPE program. Work is divided into three main parts. The first part is dedicated to the theoretical description of the main drive components. The second part describes partial subsystems of the model. In the last part is build a complete model of electric vehicle and simulated different driving mode.

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33

Melo, Bruno Mattos Souza de Souza. "Modelagem e simulação de uma máquina elétrica de corrente contínua levando-se em consideração os efeitos de reação de armadura." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/3/3139/tde-27042007-094259/.

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Acionamentos elétricos em corrente contínua ainda são largamente empregados em plantas industriais. Os modelos usualmente adotados para os motores envolvem diversas simplificações, desprezando os efeitos da reação de armadura. Neste trabalho, foi realizada uma pesquisa bibliográfica a fim de se encontrar modelos matemáticos que contemplassem os efeitos da reação de armadura em máquinas CC. Devido à escassez de material encontrado, optou-se por desenvolver um modelo próprio com base em dados obtidos experimentalmente em ensaios de laboratório. Tal modelo, o qual foi validado através da comparaç

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34

Kukuczka, Adam. "Využití Bondových grafů pro modelování elektrických strojů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217638.

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Tato diplomová práce pojednává o možnostech simulace a modelování elektrických pohonů na základě Bondových grafů. Je zde uvedena základní teorie k problematice. V práci jsou představeny modely stejnosměrného a synchronního stroje sestavené touto technikou. Dále je zde seznámení s Freeware knihovnou Bondových grafů BG V2.1 k programu MATLABSimulink. Za pomocí této knihovny byly sestaveny oba modely strojů. V poslední kapitole je uvedeno srovnání modelování na základě teorie Bondových grafů s modelováním v blokových diagramech.

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35

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

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

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36

Chmeit, Zakaria. "Étude de l'interaction de convertisseurs statiques sur un bus DC mutualisé." Electronic Thesis or Diss., Compiègne, 2021. http://www.theses.fr/2021COMP2652.

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L’impact des stratégies Modulation de Largeur d'Impulsion (MLI) sur les sollicitations des condensateurs de découplage en entrée d’un onduleur triphasé est bien connu à l’heure actuelle au même titre que le comportement de la charge alimentée (facteur de puissance). On dispose à l’heure actuelle d’un large panel de techniques de modulation applicables en fonction des diverses contraintes d’environnement (stress des condensateurs mais aussi qualité des courants dans la charge ou pertes par commutation dans les semi-conducteurs). Toutefois, dans de nombreux contextes applicatifs, le bus continu

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37

Bazhar, Sara. "Modélisation, optimisation en vue du dimensionnement d’une nouvelle structure de démarreurs à griffes pour les véhicules « micro-hybrides »." Thesis, Université de Lorraine, 2017. http://www.theses.fr/2017LORR0131/document.

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Cette thèse propose une nouvelle structure de machine à courant continu pouvant être utilisée dans une application démarreur Stop-Start automobile. Une structure tridimensionnelle à griffes est proposée pour remplacer le stator à plots actuel dans le but de réduire son coût de fabrication. La structure de la machine à griffes est modélisée par un réseau de réluctances permettant la prise en compte de la saturation et de la réaction magnétique d'induit. Grâce à sa rapidité et précision, ce modèle est ensuite intégré dans un processus d’optimisation afin d'obtenir rapidement une machine optimale

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Lin, Qing. "Small-Signal Modeling and Stability Specification of a Hybrid Propulsion System for Aircrafts." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/103515.

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This work utilizes the small-signal impedance-based stability analysis method to develop stability assessment criteria for a single-aisle turboelectric aircraft with aft boundary-layer propulsion (STARC-ABL) system. The impedance-based stability analysis method outperforms other stability analysis methods because it does not require detailed information of individual components for system integration, therefore, a system integrator can just require the vendors to make the individual components meet the impedance specifications to ensure whole system stability. This thesis presents models of a

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Bazhar, Sara. "Modélisation, optimisation en vue du dimensionnement d’une nouvelle structure de démarreurs à griffes pour les véhicules « micro-hybrides »." Electronic Thesis or Diss., Université de Lorraine, 2017. http://www.theses.fr/2017LORR0131.

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Cette thèse propose une nouvelle structure de machine à courant continu pouvant être utilisée dans une application démarreur Stop-Start automobile. Une structure tridimensionnelle à griffes est proposée pour remplacer le stator à plots actuel dans le but de réduire son coût de fabrication. La structure de la machine à griffes est modélisée par un réseau de réluctances permettant la prise en compte de la saturation et de la réaction magnétique d'induit. Grâce à sa rapidité et précision, ce modèle est ensuite intégré dans un processus d’optimisation afin d'obtenir rapidement une machine optimale

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40

Chouchene, Sarah. "Applications de l’intelligence artificielle à l'étude de la turbulence plasma en fusion nucléaire et aux plasmas d’arc en régime DC." Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0265.

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Le travail présenté dans ce mémoire a pour but d'explorer l'apport potentiel de méthodes d'analyse d'images par intelligence artificielle (IA) pour l'analyse de vidéos issues de différentes recherches en plasmas. Deux domaines sont étudiés : la turbulence dans des plasmas de fusion nucléaire, et la dynamique d'arcs dipolaires en régime continu haute tension (HTDC).Cette thèse explore principalement l'application de l'IA pour détecter et suivre les structures turbulentes macroscopiques visibles sous la forme de filaments de plasma dans le bord des réacteurs à fusion. Pour cela, des modèles d'IA

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41

Liu, Hongliang. "Contribution for integrating urban wind turbine into electrical microgrid : modeling and control." Thesis, Compiègne, 2017. http://www.theses.fr/2017COMP2331/document.

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L’intégration de l’énergie éolienne, qui est une ressource renouvelable très utilisée, n’est pas toujours facile pour le micro-réseau urbain. Dans cette thèse, une éolienne urbaine basée sur une machine synchrone à aimants permanents (MSAP) est étudiée pour être intégrée dans un micro-réseau urbain à courant continu. Un état de l'art concernant les énergies renouvelables, les micro-réseaux à courant continu et les stratégies de contrôle de la production d'énergie éolienne, est réalisée. Basé sur un modèle d’éolienne urbaine répondant à la demande du système électrique, qui se compose d’un émul

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42

Janeček, Jan. "Řízení pohybů dvouramenného žonglovacího stroje." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2012. http://www.nusl.cz/ntk/nusl-230105.

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The diploma thesis is a part of the project Intelligent double arm juggling machine. The project is divided into two diploma thesis. This thesis deals with the motion control of juggling arms. Information about hardware and software resources used in this project is in the first part of thesis. There is explanation of the control loop, explanation of used communication protocols and implementation of program proceeding in the second part of thesis.

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43

Zhu, Zongfan. "An intelligent CAD system for DC machines /." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60491.

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This thesis presents the development of an intelligent CAD system (ICADS) for DC machines. This system was implemented on a PC using Common Lisp provided by Gold Works II and connected with a Sun Workstation working under the Unix system for file transfer.<br>Both frame-based and rule-based knowledge representation techniques have been used to capture the knowledge about the design of electric machines. The system has its own inference engine specially designed to handle both decision making and numerical computation. Forward-chain reasoning and procedural attachment were used to construct thi

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44

Sireci, Alexander. "DC-DC Converter Control System for the Energy Harvesting from Exercise Machines System." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1747.

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Current exercise machines create resistance to motion and dissipate energy as heat. Some companies create ways to harness this energy, but not cost-effectively. The Energy Harvesting from Exercise Machines (EHFEM) project reduces the cost of harnessing the renewable energy. The system architecture includes the elliptical exercise machines outputting power to DC-DC converters, which then connects to the microinverters. All microinverter outputs tie together and then connect to the grid. The control system, placed around the DC-DC converters, quickly detects changes in current, and limits the cu

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Bach, Tran. "Algorithmes avancés de DCA pour certaines classes de problèmes en apprentissage automatique du Big Data." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0255.

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De nos jours, le Big Data est devenu essentiel et omniprésent dans tous les domaines. Par conséquence, il est nécessaire de développer des techniques innovantes et efficaces pour traiter la croissance rapide du volume des masses de données. Nous considérons les problèmes suivants dans le contexte de Big Data : la sélection de groupes de variables pour la régression logistique multi-classes, la réduction de dimension par t-SNE (« t-distributed Stochastic Neighbor Embedding « en anglais) et l'apprentissage en profondeur pour la classification non-supervisée (« Deep Clustering « en anglais). Nous

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Atallah, Kais. "Iron losses in brushless permanent magnet DC machines." Thesis, University of Sheffield, 1993. http://etheses.whiterose.ac.uk/14941/.

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A closed-loop computer-controlled single-sheet test system has been developed to characterise lamination materials and to measure, the iron loss density under any specified flux density waveform. The system has been 'used to validate predictions from a recently developed theoretical model, for the calculation of the excess loss component associated with domaiQ wall movement, under flux density waveforms typical of those encountered in the stator core of brushless permanent magnet dc motors. In addition, an improved expression for the calculation of the iron loss density component, from measure

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Michelle, Lum Yuen Jonathan. "Energy harvesting from elliptical machines DC converter troubleshooting /." Click here to view, 2009. http://digitalcommons.calpoly.edu/eesp/12/.

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Thesis (B.S.)--California Polytechnic State University, 2009.<br>Project advisor: David Braun. Title from PDF title page; viewed on Feb. 4, 2010. Includes bibliographical references. Also available on microfiche.

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Pokálený, Jan. "Trakční pohon elektromobilu napájený vodíkovým palivovým článkem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217584.

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The topic of this diploma thesis is a traction drive of electrocar with fuel cell. The drive is supplied with hydrogen fuel cell with power of 2 kW. The traction drive consists of the three-phase DC/AC converter and the asynchronous machine. The main part of this work is a creation of the mathematical model of the traction drive in program Matlab–Simulink.

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Lacroix, Samantha. "Modélisation et commande d’une chaine de conversion pour véhicule électrique intégrant la fonction de charge des batteries." Thesis, Paris 11, 2013. http://www.theses.fr/2013PA112074/document.

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Le développement des véhicules hybrides et électriques s’est intensifié ces dernières années, face aux problématiques environnementales et économiques. Afin que les performances de ces derniers soient comparables à celle d’un véhicule à moteur thermique, de nombreuses avancées technologiques sont indispensables. Le déploiement de véhicule entièrement à traction électrique, ne serait être réalisable, sans des infrastructures de recharge adaptées. Cette thèse constitue une contribution à l’étude d’un chargeur de batteries intégré au véhicule électrique, dans le cadre du projet SOFRACI.L'architec

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Forster, Andrew E. "Energy Harvesting From Exercise Machines: Buck-Boost Converter Design." DigitalCommons@CalPoly, 2017. https://digitalcommons.calpoly.edu/theses/1702.

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This report details the design and implementation of a switching DC-DC converter for use in the Energy Harvesting From Exercise Machines (EHFEM) project. It uses a four-switch, buck-boost topology to regulate the wide, 5-60 V output of an elliptical machine to 36 V, suitable as input for a microinverter to reclaim the energy for the electrical grid. Successful implementation reduces heat emissions from electrical energy originally wasted as heat, and facilitates a financial and environmental benefit from reduced net energy consumption.

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