Download or read book Contribution la mod lisation dynamique d ordre non entier de la machine asynchrone cage written by Sylvain Canat and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: La machine asynchrone est la plus répandue dans l'industrie. Sa modélisation classique ne prend pas en compte les courants de Foucault dans les barres rotoriques qui induisent pourtant de fortes variations tant de l'inductance que de la résistance du rotor. Ce phénomène diffusif, appelé " effet de peau " est donc modélisable de façon compacte en faisant appel à la dérivée fractionnaire (ordre non entier). Le mémoire analyse théoriquement le phénomène électromagnétique sur une barre rotorique isolée avant d'aborder le rotor dans son ensemble. Cette analyse est confirmée par les résultats issus des calculs numériques du champ magnétique, exploités pour identifier un modèle d'ordre non entier de la machine (méthode d'identification de Levenberg Marcquardt). Puis, le modèle est confronté à une identification à partir de résultats expérimentaux. Enfin, une méthode automatique de passage à un modèle dynamique approché d'ordre entier sur une gamme de fréquence est présentée.

Download or read book Analysis Modeling and Stability of Fractional Order Differential Systems 1 written by Jean-Claude Trigeassou and published by John Wiley & Sons. This book was released on 2019-09-11 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces an original fractional calculus methodology (‘the infinite state approach’) which is applied to the modeling of fractional order differential equations (FDEs) and systems (FDSs). Its modeling is based on the frequency distributed fractional integrator, while the resulting model corresponds to an integer order and infinite dimension state space representation. This original modeling allows the theoretical concepts of integer order systems to be generalized to fractional systems, with a particular emphasis on a convolution formulation.

Download or read book Analysis Modeling and Stability of Fractional Order Differential Systems 2 written by Jean-Claude Trigeassou and published by John Wiley & Sons. This book was released on 2020-02-26 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces an original fractional calculus methodology (the infinite state approach) which is applied to the modeling of fractional order differential equations (FDEs) and systems (FDSs). Its modeling is based on the frequency distributed fractional integrator, while the resulting model corresponds to an integer order and infinite dimension state space representation. This original modeling allows the theoretical concepts of integer order systems to be generalized to fractional systems, with a particular emphasis on a convolution formulation. With this approach, fundamental issues such as system state interpretation and system initialization – long considered to be major theoretical pitfalls – have been solved easily. Although originally introduced for numerical simulation and identification of FDEs, this approach also provides original solutions to many problems such as the initial conditions of fractional derivatives, the uniqueness of FDS transients, formulation of analytical transients, fractional differentiation of functions, state observation and control, definition of fractional energy, and Lyapunov stability analysis of linear and nonlinear fractional order systems. This second volume focuses on the initialization, observation and control of the distributed state, followed by stability analysis of fractional differential systems.

Download or read book Intelligent Systems and Automation written by Lotfi Beji and published by American Institute of Physics. This book was released on 2009-03-09 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of CISA’09 is to present the latest research and application results emerging from new research and technological developments of complex systems and intelligent machines acting on known or unknown, virtual or real, environments in an autonomous way or in cooperation with humans. This field requires skills in automation and control, perception of the environment, human-computer interfaces, mechanics and design, simulation, etc. It also aims at encouraging scientific cooperation between North and South and promoting scientific exchanges through a durable event.

Download or read book SIMULATION ET SCHEMA EQUIVALENT MULTI ENROULEMENT DE LA MACHINE ASYNCHRONE A SIMPLE ET A DOUBLE CAGE written by FERHAT.. SAICHI and published by . This book was released on 1996 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE DE THESE EST UNE CONTRIBUTION A LA MODELISATION DE LA MACHINE ASYNCHRONE A CAGE. LES EQUATIONS ELECTRIQUES DECRIVANT LE FONCTIONNEMENT DES MACHINES TOURNANTES CONTIENNENT DES TERMES A COEFFICIENTS NON CONSTANTS ET D'AUTRE QUI SONT UNE FONCTION PERIODIQUE DE L'ANGLE DEFINI PAR LA POSITION DU ROTOR, LA RESOLUTION DE CES EQUATIONS GENERALEMENT DEPENDANTES LES UNES DES AUTRES N'EST DONC PAS AISEE, L'APPROCHE LA PLUS UTILISEE POUR ABORDER CE TYPE DE PROBLEME EST L'ANALYSE MATRICIELLE. LA DEMARCHE CONSISTE A TRANSFORMER LES EQUATIONS DE BASE D'ORDRE ELEVE DE LA MACHINE A L'AIDE D'UNE TRANSFORMATION COMPLEXE A UN SYSTEME D'EQUATIONS DE DIMENSION REDUITE, CETTE TRANSFORMATION FAIT APPEL AU CALCUL MATRICIEL ET AUX TECHNIQUES DE DIAGONALISATION DES MATRICES CIRCULANTES. CETTE ETUDE DECRIT LES COMPORTEMENTS DYNAMIQUES ET ELABORE LES SCHEMAS EQUIVALENTS DE LA MACHINE A SIMPLE CAGE, A DOUBLE CAGE, ET LA MACHINE A DEUX CAGES DECALEES (LES BARRES SONT LOGEES DANS DEUX ENCOCHES DIFFERENTES)

Download or read book Neural Networks written by Gérard Dreyfus and published by Springer Science & Business Media. This book was released on 2005-11-25 with total page 509 pages. Available in PDF, EPUB and Kindle. Book excerpt: Neural networks represent a powerful data processing technique that has reached maturity and broad application. When clearly understood and appropriately used, they are a mandatory component in the toolbox of any engineer who wants make the best use of the available data, in order to build models, make predictions, mine data, recognize shapes or signals, etc. Ranging from theoretical foundations to real-life applications, this book is intended to provide engineers and researchers with clear methodologies for taking advantage of neural networks in industrial, financial or banking applications, many instances of which are presented in the book. For the benefit of readers wishing to gain deeper knowledge of the topics, the book features appendices that provide theoretical details for greater insight, and algorithmic details for efficient programming and implementation. The chapters have been written by experts and edited to present a coherent and comprehensive, yet not redundant, practically oriented introduction.

Download or read book Electromagnetic Modeling by Finite Element Methods written by João Pedro A. Bastos and published by CRC Press. This book was released on 2003-04-01 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike any other source in the field, this valuable reference clearly examines key aspects of the finite element method (FEM) for electromagnetic analysis of low-frequency electrical devices. The authors examine phenomena such as nonlinearity, mechanical force, electrical circuit coupling, vibration, heat, and movement for applications in the elect

Download or read book Electric and Magnetic Fields written by R. Belmans and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the edited versions of the papers presented at the Second International Workshop on Electric and Magnetic Fields held at the Katholieke Universiteit van Leuven (Belgium) in May 1994. This Workshop deals with numerical solutions of electromagnetic problems in real life applications. The topics include coupled problems (thermal, mechanical, electric circuits), CAD & CAM applications, 3D eddy current and high frequency problems, optimisation and application oriented numerical problems. This workshop was organised jointly by the AIM (Association of Engineers graduated from de Montefiore Electrical Institute) together with the Departments of Electrical Engineering of the Katholieke Universiteit van Leuven (Prof. R. Belmans), the University of Gent (Prof. J. Melkebbek) and the University of Liege (Prof. W. Legros). These laboratories are working together in the framework of the Pole d'Attraction Interuniversitaire - Inter-University Attractie-Pole 51 - on electromagnetic systems led by the University of Liege and the research work they perform covers most of the topics of the Workshop. One of the principal aims of this Workshop was to provide a bridge between the electromagnetic device designers, mainly industrialists, and the electromagnetic field computation developers. Therefore, this book contains a continuous spectrum of papers from application of electromagnetic models in industrial design to presentation of new theoretical developments.

Download or read book Recent Developments of Electrical Drives written by Slawomir Wiak and published by Springer Science & Business Media. This book was released on 2007-06-08 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents papers covering a wide spectrum of theory and practice, deeply rooted in engineering problems at a high practical and theoretical level. The contents explore theory, control systems and applications, the heart of the matter in electrical drives.

Download or read book Handbook of Electric Machines written by S. A. Nasar and published by McGraw-Hill Companies. This book was released on 1987 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Download or read book Electrical Machine Analysis Using Finite Elements written by Nicola Bianchi and published by CRC Press. This book was released on 2017-12-19 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the fan motor in your PC to precision control of aircraft, electrical machines of all sizes, varieties, and levels of complexity permeate our world. Some are very simple, while others require exacting and application-specific design. Electrical Machine Analysis Using Finite Elements provides the tools necessary for the analysis and design of any type of electrical machine by integrating mathematical/numerical techniques with analytical and design methodologies. Building successively from simple to complex analyses, this book leads you step-by-step through the procedures and illustrates their implementation with examples of both traditional and innovative machines. Although the examples are of specific devices, they demonstrate how the procedures apply to any type of electrical machine, introducing a preliminary theory followed by various considerations for the unique circumstance. The author presents the mathematical background underlying the analysis, but emphasizes application of the techniques, common strategies, and obtained results. He also supplies codes for simple algorithms and reveals analytical methodologies that universally apply to any software program. With step-by-step coverage of the fundamentals and common procedures, Electrical Machine Analysis Using Finite Elements offers a superior analytical framework that allows you to adapt to any electrical machine, to any software platform, and to any specific requirements that you may encounter.

Download or read book Direct Torque Control Strategies of Electrical Machines written by Fatma Ben Salem and published by BoD – Books on Demand. This book was released on 2021-01-20 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book deals with the design and analysis of Direct Torque Control (DTC). It introduces readers to two major applications of electrical machines: speed drive and position control and gives the readers a comprehensive overview of the field of DTC dedicated to AC machines. It includes new DTC approaches with and without control of commutation frequency. It also covers DTC applications using artificial intelligence. The book combines theoretical analysis, simulation, and experimental concepts.To make the content as accessible as possible, the book employs a clear proposal in each chapter, moving from the background, to numerical development, and finally to case studies and illustrations. The book is a wide-ranging reference source for graduate students, researchers, and professors from related fields and it will benefit practicing engineers and experts from the industry.

Download or read book Renewable Energy for Smart and Sustainable Cities written by Mustapha Hatti and published by Springer. This book was released on 2018-11-23 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book features cutting-edge research presented at the second international conference on Artificial Intelligence in Renewable Energetic Systems, IC-AIRES2018, held on 24–26 November 2018, at the High School of Commerce, ESC-Koléa in Tipaza, Algeria. Today, the fundamental challenge of integrating renewable energies into the design of smart cities is more relevant than ever. While based on the advent of big data and the use of information and communication technologies, smart cities must now respond to cross-cutting issues involving urban development, energy and environmental constraints; further, these cities must also explore how they can integrate more sustainable energies. Sustainable energies are a major determinant of smart cities’ longevity. From an environmental and technological standpoint, these energies offer an optimal power supply to the electric network while creating significantly less pollution. This requires flexibility, i.e., the availability of supply and demand. The end goal of any smart city is to improve the quality of life for all citizens (both in the city and in the countryside) in a way that is sustainable and respectful of the environment. This book encourages the reader to engage in the preservation of our environment, every moment, every day, so as to help build a clean and healthy future, and to think of the future generations who will one day inherit our planet. Further, it equips those whose work involves energy systems and those engaged in modelling artificial intelligence to combine their expertise for the benefit of the scientific community and humanity as a whole.

Download or read book Applications of Sliding Mode Control written by Nabil Derbel and published by Springer. This book was released on 2016-10-14 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents essential studies and applications in the context of sliding mode control, highlighting the latest findings from interdisciplinary theoretical studies, ranging from computational algorithm development to representative applications. Readers will learn how to easily tailor the techniques to accommodate their ad hoc applications. To make the content as accessible as possible, the book employs a clear route in each paper, moving from background to motivation, to quantitative development (equations), and lastly to case studies/illustrations/tutorials (simulations, experiences, curves, tables, etc.). Though primarily intended for graduate students, professors and researchers from related fields, the book will also benefit engineers and scientists from industry.

Download or read book Advances in Green Energies and Materials Technology written by Younes Chiba and published by Springer Nature. This book was released on 2021-06-09 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents selected articles from the Algerian Symposium on Renewable Energy and Materials (ASREM-2020) held at Médéa, Algeria. It highlights the latest advances in the field of green energies and material technology with specific accentuation on numerical plans and recent methodologies designed to solve engineering problems. It includes mathematical models and experimental measurements to study different problems in renewable energy and materials characterization, with contributions from experts in both academia and industry, and presents a platform to further collaborations in this important area.

Download or read book Sliding Mode Control In Engineering written by Wilfrid Perruquetti and published by CRC Press. This book was released on 2002-01-29 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: Provides comprehensive coverage of the most recent developments in the theory of non-Archimedean pseudo-differential equations and its application to stochastics and mathematical physics--offering current methods of construction for stochastic processes in the field of p-adic numbers and related structures. Develops a new theory for parabolic equat