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Contribution A La Simulation Electrothermique En Electronique De Puissance
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Book Synopsis CONTRIBUTION A LA SIMULATION ELECTROTHERMIQUE EN ELECTRONIQUE DE PUISSANCE. DEVELOPPEMENT D'UNE METHODE DE SIMULATION POUR CIRCUITS DE COMMUTATION SOUMIS A DES COMMANDES VARIABLES by : PATRICK.. VALES
Download or read book CONTRIBUTION A LA SIMULATION ELECTROTHERMIQUE EN ELECTRONIQUE DE PUISSANCE. DEVELOPPEMENT D'UNE METHODE DE SIMULATION POUR CIRCUITS DE COMMUTATION SOUMIS A DES COMMANDES VARIABLES written by PATRICK.. VALES and published by . This book was released on 1997 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS LES CIRCUITS DE PUISSANCE CONCUS ACTUELLEMENT, LES EFFETS ELECTROTHERMIQUES NE PEUVENT PLUS ETRE IGNORES. UNE METHODOLOGIE EST PROPOSEE EN VUE DE LA SIMULATION COMPORTEMENTALE DES CIRCUITS DE PUISSANCE SOUMIS AUX INTERACTIONS ELECTROTHERMIQUES. L'OBJECTIF EST DE CREER UN LOGICIEL QUI OPTIMISE LE TEMPS DE CALCUL TOUT EN TENANT COMPTE DES CONSTANTES DE TEMPS ELECTRIQUE ET THERMIQUE QUI SONT GENERALEMENT TRES DIFFERENTES. UN PROGRAMME SUPERVISEUR ECRIT EN FORTRAN, GERE AU MOYEN D'APPELS SYSTEME, UN DIALOGUE INTERACTIF ENTRE UN SIMULATEUR THERMIQUE RAPIDE ET UN SIMULATEUR ELECTRIQUE GENERAL. CE PROCESSUS DE COUPLAGE EXPLICITE ENTRE DEUX SIMULATEURS SPECIFIQUES, NECESSITE UN ENVIRONNEMENT DE TRAVAIL MULTITACHE. LE LOGICIEL DEVELOPPE, PERMET DE PREVOIR LA DERIVE DE LA PUISSANCE DISSIPEE DANS LA ZONE ACTIVE DES COMPOSANTS, AINSI QUE LES EFFETS DU COUPLAGE THERMIQUE ENTRE COMPOSANTS VOISINS. LA METHODE DE SIMULATION A ETE APPLIQUEE DE FACON ORIGINALE A L'ETUDE DES CIRCUITS DE COMMUTATION SOUMIS A DES COMMANDES VARIABLES. UNE PHASE DE VALIDATION MONTRE D'UNE PART LA COHERENCE DE LA METHODE UTILISEE ET D'AUTRE PART, UNE BONNE COMPARAISON ENTRE RESULTATS SIMULES ET EXPERIMENTAUX. POUR LES CIRCUITS DE COMMUTATION, LES TEMPS DE SIMULATION IMPLIQUES SONT CONSIDERABLEMENT REDUITS PAR RAPPORT A LA METHODE IMPLICITE DE SIMULATION, QUI CONSISTE A RESOUDRE L'ENSEMBLE DES EQUATIONS ELECTRIQUES ET THERMIQUES DANS LE SIMULATEUR ELECTRIQUE SEUL.
Book Synopsis Contribution à la simulation électrothermique en électronique de puissance by : Patrick Vales
Download or read book Contribution à la simulation électrothermique en électronique de puissance written by Patrick Vales and published by . This book was released on 1997 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Power Electronics Semiconductor Devices by : Robert Perret
Download or read book Power Electronics Semiconductor Devices written by Robert Perret and published by John Wiley & Sons. This book was released on 2013-03-01 with total page 381 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book relates the recent developments in several key electrical engineering R&D labs, concentrating on power electronics switches and their use. The first sections deal with key power electronics technologies, MOSFETs and IGBTs, including series and parallel associations. The next section examines silicon carbide and its potentiality for power electronics applications and its present limitations. Then, a dedicated section presents the capacitors, key passive components in power electronics, followed by a modeling method allowing the stray inductances computation, necessary for the precise simulation of switching waveforms. Thermal behavior associated with power switches follows, and the last part proposes some interesting prospectives associated to Power Electronics integration.
Book Synopsis Contribution à la conception par la simulation en électronique de puissance by : Cyril Buttay
Download or read book Contribution à la conception par la simulation en électronique de puissance written by Cyril Buttay and published by . This book was released on 2004 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'électronique de puissance prend une place croissante dans le domaine automobile, avec notamment l'apparition de systèmes de motorisation mixte thermique-électrique (véhicules hybrides). Dans cette optique, les outils de conception des convertisseurs basse tension doivent être suffisamment précis pour réduire les phases de prototypage, mais également pour analyser la robustesse d'un convertisseur face aux inévitables dispersions d'une fabrication en grande série. Dans la première partie, nous proposons un modèle de MOSFET valide dans les différentes phases de fonctionnement rencontrées dans un onduleur (commutation du transistor, de sa diode interne, et fonctionnement en avalanche notamment). La nécessité de modélisation du câblage est ensuite démontrée, puis nous présentons la méthode de modélisation, reposant sur l'utilisation du logiciel InCa. La seconde partie de cette thèse, qui repose principalement sur une démarche expérimentale, permet d'identifier les paramètres du modèle de MOSFET puis de valider la modélisation complète du convertisseur vis-à-vis de mesures. Pour cela, nous avons choisi un critère de comparai-son très sensible aux erreurs de modélisation : le niveau de pertes du convertisseur. La mesure de ces pertes est effectuée par calorimétrie. Nous en concluons que la modélisation proposée atteint une précision satisfaisante pour pouvoir être exploitée dans une démarche de conception, ce qui fait l'objet de la dernière partie de cette thèse. La simulation est alors utilisée pour étudier l'influence du câblage et de la commande sur les pertes d'un bras d'onduleur, puis pour étudier la répartition du courant entre transistors d'un assemblage en parallèle en tenant compte de leurs dispersions de caractéristiques. Une telle étude ne pourrait que très difficilement être effectuée de façon expérimentale (elle nécessiterait la modification du circuit pour insérer les instruments de mesure), ce qui montre l'intérêt de la conception assistée par ordinateur en tant qu'outil d'analyse.
Book Synopsis Contribution à la modélisation électrothermique by : Hussein Dia
Download or read book Contribution à la modélisation électrothermique written by Hussein Dia and published by . This book was released on 2011 with total page 191 pages. Available in PDF, EPUB and Kindle. Book excerpt: Une forte exigence de robustesse s'est imposée dans tous les domaines d'application des composants de puissance. Dans ce cadre très contraint, seule une analyse fine des phénomènes liés directement ou indirectement aux défaillances peut garantir une maîtrise de la fiabilité des fonctions assurées par les nouveaux composants de puissance. Cependant, ces phénomènes impliquent des couplages entre des effets électriques, thermiques et mécaniques, rendant leur étude très complexe. Le recours à la modélisation multi-physique bien adaptée s'avère alors déterminant. Dans ce mémoire de thèse, nous proposons une méthodologie de modélisation électrique prenant en compte les effets de la température sur les phénomènes localisés qui initient une défaillance souvent fatale. En prévision de la simulation électrothermique couplée impliquant des transistors MOS de puissance, un modèle électrique thermosensible de ce composant et de sa diode structurelle a été développé. Corrélativement un ensemble de bancs expérimentaux a été mis en œuvre pour l'extraction des paramètres et pour la validation du modèle. Une attention particulière a été accordée à l'étude des phénomènes parasites qui pourraient survenir de manière très localisée suite à une répartition inhomogène de la température et à l'apparition de points chauds. Ainsi les fonctionnements limites en avalanche, avec le déclenchement du transistor bipolaire parasite et de son retournement ont été modélisés. Des bancs spécifiques pour la validation du modèle pour les régimes extrêmes ont été utilisés en prenant des précautions liées à la haute température. Enfin, Le modèle électrique thermosensible complet développé a été utilisé par la société Epsilon ingénierie pour faire des simulations électrothermiques du MOS de puissance en mode d'avalanche en adaptant le logiciel Epsilon-R3D.
Book Synopsis Contribution à la simulation électrothermique des circuits intégrés analogiques by : Kraidy Jacques Ecrabey
Download or read book Contribution à la simulation électrothermique des circuits intégrés analogiques written by Kraidy Jacques Ecrabey and published by . This book was released on 1996 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: LA CAPACITE GRANDISSANTE DES CIRCUITS INTEGRES A DISSIPER DE LA PUISSANCE S'ACCOMPAGNE DE PROBLEMES THERMIQUES QUE LES CONCEPTEURS DOIVENT INTEGRER DES LES PREMIERES ETAPES DE LA CONCEPTION. CES PROBLEMES THERMIQUES PEUVENT CONSIDERABLEMENT DETERIORER LES PERFORMANCES ELECTRIQUES DES CIRCUITS. NOTRE LABORATOIRE TRAVAILLE SUR UN PROJET DE DEVELOPPEMENT D'UN SIMULATEUR ELECTROTHERMIQUE PERMETTANT D'ETUDIER CES PROBLEMES. SE SITUANT DANS CE PROJET, CE TRAVAIL DE THESE PRESENTE DES MODELES THERMIQUES DE BOITIERS DE CIRCUITS INTEGRES POUR UNE MEILLEURE PRISE EN COMPTE DES TRANSFERTS THERMIQUES QUI Y ONT LIEU. LE MODELE EST UN ENSEMBLE DE CELLULES RC OBTENUES PAR MAILLAGE DU BOITIER. EN LE VALIDANT PAR DES MESURES DE THERMOGRAPHIE INFRAROUGE EFFECTUEES SUR UN CIRCUIT INTEGRE INDUSTRIEL, NOUS AVONS MONTRE L'INFLUENCE DES TRANSFERTS DE CHALEUR DANS L'HABILLAGE DU CIRCUIT SUR LA DISTRIBUTION THERMIQUE A LA SURFACE DE SON LAYOUT AINSI QUE LEUR INFLUENCE SUR SES CARACTERISTIQUES ELECTRIQUES. D'AUTRE PART NOUS AVONS DEVELOPPE UNE METHODE NUMERIQUE DE RESOLUTION AFIN D'AUGMENTER LA VITESSE DU SIMULATEUR. CETTE METHODE EST BASEE SUR LA METHODE DU GRADIENT CONJUGUEE A LAQUELLE NOUS AVONS COUPLE UN PRECONDITIONNEMENT. LES TEMPS DE SIMULATIONS DE CETTE METHODE SONT COMPARES AUX TEMPS DE SIMULATION DE LA METHODE DE GAUSS-SEIDEL RELAXEE. NOUS OBTENONS UN GAIN DE TEMPS DE 50%
Book Synopsis Contributions à la simulation temps réel des grands réseaux électriques modernes by : Philippe Le-Huy
Download or read book Contributions à la simulation temps réel des grands réseaux électriques modernes written by Philippe Le-Huy and published by . This book was released on 2021 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Électrotechnique by : Daniel Ernest Gaude
Download or read book Électrotechnique written by Daniel Ernest Gaude and published by . This book was released on 2014-06-04 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: L'électrotechnique est une discipline où la recherche nous apporte périodiquement de nouvelles applications, tandis que de nouveaux besoins ne cessent de se faire jour. L'intérêt que suscite cette discipline déjà classique s'en trouve donc constamment stimulé, invitant tous ceux qui souhaitent suivre cette évolution à découvrir ou à redécouvrir ce domaine porteur d'emplois et ouvrant aux nombreuses carrières de techniciens, d'ingénieurs et de chercheurs. Par sa polyvalence et sa souplesse. l'énergie électrique est au coeur des échanges d'énergie. Ce manuel permettra aux étudiants inscrits dans les différents premiers cycles de l'enseignement supérieur et aux professionnels en formation continue d'étudier - avec des méthodes actuelles - l'électrotechnique telle qu'on la pratique aujourd'hui; les problèmes reposent donc sur des données industrielles et techniques. La part faite aux études de cas et aux exercices corrigés constitue un des meilleurs atouts de cet ouvrage où l'on verra que, chaque fois que cela est possible, le problème précède le cours. Toutefois. pour que l'on soit encouragé à le résoudre. la solution est le plus souvent déjà dans l'énoncé. Enfin, pour résoudre les problèmes à la calculatrice ou à l'ordinateur, la simulation informatique et les méthodes de calcul informatisées sont ici très largement utilisées.[Sources : 4e de couv.]
Book Synopsis Contribution a la simulation electrothermique des circuits integres analogiques by : Kraidy Jacques Ecrabey
Download or read book Contribution a la simulation electrothermique des circuits integres analogiques written by Kraidy Jacques Ecrabey and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Advanced Power MOSFET Concepts by : B. Jayant Baliga
Download or read book Advanced Power MOSFET Concepts written by B. Jayant Baliga and published by Springer Science & Business Media. This book was released on 2010-06-26 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last decade many new concepts have been proposed for improving the performance of power MOSFETs. The results of this research are dispersed in the technical literature among journal articles and abstracts of conferences. Consequently, the information is not readily available to researchers and practicing engineers in the power device community. There is no cohesive treatment of the ideas to provide an assessment of the relative merits of the ideas. "Advanced Power MOSFET Concepts" provides an in-depth treatment of the physics of operation of advanced power MOSFETs. Analytical models for explaining the operation of all the advanced power MOSFETs will be developed. The results of numerical simulations will be provided to give additional insight into the device physics and validate the analytical models. The results of two-dimensional simulations will be provided to corroborate the analytical models and give greater insight into the device operation.
Book Synopsis Introduction to Electromagnetic Compatibility by : Clayton R. Paul
Download or read book Introduction to Electromagnetic Compatibility written by Clayton R. Paul and published by John Wiley & Sons. This book was released on 2022-11-01 with total page 852 pages. Available in PDF, EPUB and Kindle. Book excerpt: INTRODUCTION TO ELECTROMAGNETIC COMPATIBILITY The revised new edition of the classic textbook is an essential resource for anyone working with today’s advancements in both digital and analog devices, communications systems, as well as power/energy generation and distribution. Introduction to Electromagnetic Compatibility provides thorough coverage of the techniques and methodologies used to design and analyze electronic systems that function acceptably in their electromagnetic environment. Assuming no prior familiarity with electromagnetic compatibility, this user-friendly textbook first explains fundamental EMC concepts and technologies before moving on to more advanced topics in EMC system design. This third edition reflects the results of an extensive detailed review of the entire second edition, embracing and maintaining the content that has “stood the test of time”, such as from the theory of electromagnetic phenomena and associated mathematics, to the practical background information on U.S. and international regulatory requirements. In addition to converting Dr. Paul’s original SPICE exercises to contemporary utilization of LTSPICE, there is new chapter material on antenna modeling and simulation. This edition will continue to provide invaluable information on computer modeling for EMC, circuit board and system-level EMC design, EMC test practices, EMC measurement procedures and equipment, and more such as: Features fully-worked examples, topic reviews, self-assessment questions, end-of-chapter exercises, and numerous high-quality images and illustrations Contains useful appendices of phasor analysis methods, electromagnetic field equations and waves. The ideal textbook for university courses on EMC, Introduction to Electromagnetic Compatibility, Third Edition is also an invaluable reference for practicing electrical engineers dealing with interference issues or those wanting to learn more about electromagnetic compatibility to become better product designers.
Book Synopsis Passive RF and Microwave Integrated Circuits by : Leo Maloratsky
Download or read book Passive RF and Microwave Integrated Circuits written by Leo Maloratsky and published by Elsevier. This book was released on 2003-12-01 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: The growth in RF and wireless/mobile computing devices that operate at microwave frequencies has resulted in explosive demand for integrated circuits capable of operating at such frequencies in order to accomplish functions like frequency division, phase shifting, attenuation, and isolators and circulators for antennas. This book is an introduction to such ICs, combining theory and practical applications of those devices. In addition to this combined theory and application approach, the author discusses the critical importance of differing fabrication materials on the performance of ICs at different frequencies. This is an area often overlooked when choosing ICs for RF and microwave applications, yet it can be a crucial factor in how an IC performs in a given application. Gives reader a solid background in an increasingly important area of circuit design Emphasis on combination of theoretical discussions with practical application examples In-depth discussion of critical, but often overlooked topic of different fabrication material performances at varying frequencies
Book Synopsis The Dopant Density and Temperature Dependence of Electron Mobility and Resistivity in N-type Silicon by : Sheng S. Li
Download or read book The Dopant Density and Temperature Dependence of Electron Mobility and Resistivity in N-type Silicon written by Sheng S. Li and published by . This book was released on 1977 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Programming for Electrical Engineers by : James Squire
Download or read book Programming for Electrical Engineers written by James Squire and published by Academic Press. This book was released on 2020-07-08 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Programming for Electrical Engineers: MATLAB and Spice introduces beginning engineering students to programming in Matlab and Spice through engaged, problem-based learning and dedicated electrical and computer engineering content. The book draws its problems and examples specifically from electrical and computer engineering, covering such topics as circuit analysis, signal processing, and filter design. It teaches relevant computational techniques in the context of solving common problems in electrical and computer engineering, including mesh and nodal analysis, Fourier transforms, and phasor analysis. Programming for Electrical Engineers: MATLAB and Spice is unique among MATLAB textbooks for its dual focus on introductory-level learning and discipline-specific content in electrical and computer engineering. No other textbook on the market currently targets this audience with the same attention to discipline-specific content and engaged learning practices. Although it is primarily an introduction to programming in MATLAB, the book also has a chapter on circuit simulation using Spice, and it includes materials required by ABET Accreditation reviews, such as information on ethics, professional development, and lifelong learning. Discipline-specific: Introduces Electrical and Computer Engineering-specific topics, such as phasor analysis and complex exponentials, that are not covered in generic engineering Matlab texts Accessible: Pedagogically appropriate for freshmen and sophomores with little or no prior programming experience Scaffolded content: Addresses both script and functions but emphasizes the use of functions since scripts with non-scoped variables are less-commonly encountered after introductory courses Problem-centric: Introduces MATLAB commands as needed to solve progressively more complex EE/ECE-specific problems, and includes over 100 embedded, in-chapter questions to check comprehension in stages and support active learning exercises in the classroom Enrichment callouts: "Pro Tip" callouts cover common ABET topics, such as ethics and professional development, and "Digging Deeper" callouts provide optional, more detailed material for interested students
Book Synopsis Numerical Methods for Partial Differential Equations by : Sandip Mazumder
Download or read book Numerical Methods for Partial Differential Equations written by Sandip Mazumder and published by Academic Press. This book was released on 2015-12-01 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical Methods for Partial Differential Equations: Finite Difference and Finite Volume Methods focuses on two popular deterministic methods for solving partial differential equations (PDEs), namely finite difference and finite volume methods. The solution of PDEs can be very challenging, depending on the type of equation, the number of independent variables, the boundary, and initial conditions, and other factors. These two methods have been traditionally used to solve problems involving fluid flow. For practical reasons, the finite element method, used more often for solving problems in solid mechanics, and covered extensively in various other texts, has been excluded. The book is intended for beginning graduate students and early career professionals, although advanced undergraduate students may find it equally useful. The material is meant to serve as a prerequisite for students who might go on to take additional courses in computational mechanics, computational fluid dynamics, or computational electromagnetics. The notations, language, and technical jargon used in the book can be easily understood by scientists and engineers who may not have had graduate-level applied mathematics or computer science courses. Presents one of the few available resources that comprehensively describes and demonstrates the finite volume method for unstructured mesh used frequently by practicing code developers in industry Includes step-by-step algorithms and code snippets in each chapter that enables the reader to make the transition from equations on the page to working codes Includes 51 worked out examples that comprehensively demonstrate important mathematical steps, algorithms, and coding practices required to numerically solve PDEs, as well as how to interpret the results from both physical and mathematic perspectives
Book Synopsis Numerical Methods of Mathematical Optimization by : Hans P. Künzi
Download or read book Numerical Methods of Mathematical Optimization written by Hans P. Künzi and published by Academic Press. This book was released on 2014-05-12 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerical Methods of Mathematical Optimization: With ALGOL and FORTRAN Programs reviews the theory and the practical application of the numerical methods of mathematical optimization. An ALGOL and a FORTRAN program was developed for each one of the algorithms described in the theoretical section. This should result in easy access to the application of the different optimization methods. Comprised of four chapters, this volume begins with a discussion on the theory of linear and nonlinear optimization, with the main stress on an easily understood, mathematically precise presentation. In addition to the theoretical considerations, several algorithms of importance to the numerical application of optimization theory are described. The next chapter explains the computer programs used in actual optimization, which have the form of procedures or subroutines. The book concludes with an analysis of ALGOL and FORTRAN, paying particular attention to their use in global optimization procedures as well as for the simplex and duoplex methods and the decomposition, Gomory, Beale, and Wolfe algorithms. This monograph will be helpful to students and practitioners of computer science and applied mathematics.
Book Synopsis Handbook of Research on Advanced Trends in Microwave and Communication Engineering by : El Oualkadi, Ahmed
Download or read book Handbook of Research on Advanced Trends in Microwave and Communication Engineering written by El Oualkadi, Ahmed and published by IGI Global. This book was released on 2016-08-25 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wireless communications have become invaluable in the modern world. The market is going through a revolutionary transformation as new technologies and standards endeavor to keep up with demand for integrated and low-cost mobile and wireless devices. Due to their ubiquity, there is also a need for a simplification of the design of wireless systems and networks. The Handbook of Research on Advanced Trends in Microwave and Communication Engineering showcases the current trends and approaches in the design and analysis of reconfigurable microwave devices, antennas for wireless applications, and wireless communication technologies. Outlining both theoretical and experimental approaches, this publication brings to light the unique design issues of this emerging research, making it an ideal reference source for engineers, researchers, graduate students, and IT professionals.
