Download or read book Commande Adaptative D un Moteur Asynchrones Cage written by Nadir Kabache and published by Omniscriptum. This book was released on 2011-05 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le pr sent travail propose une vari t de sch mas de commande adaptative, base de r seaux de neurones artificiels, en vue d'am liorer les performances dynamiques du moteur asynchrone cage. Ces approches visent trouver des solutions pour les principaux probl mes li s la commande de ce moteur, savoir, ceux relatifs au mod le non- lin aire impr cis, aux variations param triques, l'estimation du flux rotorique, etc. Les sch mas trait s utilisent une association combinant les r seaux de neurones artificiels, la commande non lin aire par lin arisation entr e-sortie et la th orie de commande non lin aire adaptative. Dans cette association, les capacit s d'approximation des r seaux de neurones artificiels sont exploit es pour d velopper des lois de commande plus souples et plus robustes pour la machine tudi e
Download or read book Induction Motors Recent Advances New Perspectives and Applications written by Adel El-Shahat and published by BoD – Books on Demand. This book was released on 2023-09-13 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The induction motor is one of the most significant innovations in contemporary history and it officially kicked off the Second Industrial Revolution by significantly enhancing energy generation efficiency. Induction motors are utilized in a wide variety of applications in the modern industrial world. Motivated by the importance of recent advances, new perspectives, and applications of induction motors, this book presents research from distinguished experts in the field. It addresses recent advances in induction motors, optimal solutions in field-oriented control, the association of converters to induction motors, dynamic analysis, optimized design of synergetic control, fault-tolerant control, mathematical modeling, an adaptive system scheme for a sensorless drive, modeling, and simulation of a system with inter-turn faults, sensorless speed observer for industrial drives, and induction motor applications in electric vehicles. This book is useful for undergraduates, graduate students, researchers, professors, and field engineers due to its combination of both theoretical coverage and real-world application concepts.
Download or read book Electrical Actuators written by Bernard de Fornel and published by John Wiley & Sons. This book was released on 2013-03-04 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The different chapters of this book cover a large range of information regarding electrical actuators, including: synchronous and asynchronous machine modeling in order to measure and identify offline and online parameters using modern optimization methods; identification in real time of parameters with Luenberger filter and the extended Kalman filter; estimation of non-measurable variables, first by linear estimates and observers, then by lower observers. Robustness is a very problematic issue, as well, which is fully explored in a chapter dedicated to the subject. Finally, the estimate of non-measurable mechanical variables is particularly dealt with: estimate of load moment, then observation of the positioning of a command without mechanical sensor. The conditions to measure variables and real implementation of numerical algorithms are also examined with particular attention.
Download or read book COMMANDE ADAPTATIVE VECTORIELLE D UN MOTEUR ASYNCHRONE EN UTILISANT UN PROCESSEUR DE SIGNAL NUMERIQUE written by ALBERTO E.. ALEMAN-NIETO and published by . This book was released on 1996 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: DANS CETTE THESE, UNE ETUDE EN SIMULATION A ETE EFFECTUEE AFIN DE METTRE EN EVIDENCE L'EFFET DE LA TEMPERATURE SUR LES PERFORMANCES DE L'ASSERVISSEMENT, ET DE CHERCHER UNE SOLUTION POUR Y PALLIER. DEUX SOLUTIONS SONT PROPOSEES, L'UNE EFFECTUEE EN SIMULATION ET L'AUTRE IMPLEMENTEE EN TEMPS REEL: LA PREMIERE SUPPOSE L'EXISTENCE D'UNE SONDE DE TEMPERATURE PERMETTANT LA MESURE DIRECTE DE LA VARIATION DE LA TEMPERATURE. SA COMPENSATION SE FERA ALORS EN TEMPS REEL EN ADAPTANT LE MODELE DE FLUX, LA PULSATION DE GLISSEMENT ET LES COEFFICIENTS DU REGULATEUR DE FLUX. LA SECONDE FAIT UNE ESTIMATION DE LA VARIATION DE LA CONSTANTE DE TEMPS ROTORIQUE. CETTE METHODE CONSISTE A INJECTER UNE SEQUENCE BINAIRE PSEUDO-ALEATOIRE (SBPA). ENSUITE LA VARIATION DE #R EST ESTIMEE EN UTILISANT LA METHODE D'INTERCORRELATION ENTRE LE SIGNAL ET SON EFFET RECUEILLI SUR L'ERREUR DE LA VITESSE. L'IMPLEMENTATION DE LA METHODE D'IDENTIFICATION POUR ADAPTER LA CONSTANTE DE TEMPS ROTORIQUE EST FAITE EN TROIS ETAPES: D'ABORD LA METHODE A FLUX ORIENTE INDIRECTE EST MIS EN UVRE. CECI PERMET AUSSI DE METTRE AU POINT LA STRUCTURE MATERIELLE DE LA COMMANDE. ENSUITE, LA METHODE A FLUX ORIENTE DIRECTE EST IMPLEMENTEE. CECI A PERMIS D'UNE PART, DE VALIDER LES SIMULATIONS ET D'AUTRE PART DE METTRE AU POINT LA SECTION QUI FAIT L'ESTIMATION DU FLUX ROTORIQUE. ENFIN L'IMPLEMENTATION DE LA METHODE D'INJECTION DE SIGNAL BINAIRE PSEUDO-ALEATOIRE ET CORRELATION EST EXPLIQUEE. CES TROIS ETAPES SONT ACCOMPAGNEES D'UNE EXPLICATION DETAILLEE CONCERNANT LEUR MISE EN UVRE
Download or read book Observation et commande de la machine asynchrone written by Abdou Dib and published by . This book was released on 2012 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Le travail de recherche effectué dans cette thèse a été principalement consacré aux problèmes d'observation et de commande des moteurs asynchrones sans capteurs mécaniques. Deux contributions principale ont été faites en exploitant judicieusement le concept de grand gain. La première contribution est un observateur du type grand gain qui permet de réaliser une estimation relativement précise des variables d'état mécaniques et magnétiques des moteurs asynchrones à partir des mesures disponibles des courants et tensions statoriques. Le gain d'observation a été judicieusement modifié pour des considérations de faisabilité des calculs lorsque le moteur est amené à fonctionner dans des conditions incompatibles avec sa condition d'observabilité. Cet observateur a été particulièrement utilisé pour concevoir un asservissement des moteurs asynchrones sans capteur mécaniques à partir d'un système de commande avec retour d'état du type grand gain. La seconde contribution est un observateur adaptatif du type grand gain qui permet d'estimer conjointement les variables d'état et un ensemble de combinaisons des paramètres d'un moteur asynchrone à partir des mesures des courants et tentions statoriques et de la vitesse mécanique. Cet observateur adaptatif a été particulièrement combiné avec un système de commande avec retour d'état du type grand gain pour concevoir un système de commande adaptative permettant de préserver les performances requises en asservissement des moteurs asynchrones sans capteurs magnétiques en dépit d'une méconnaissance de leurs paramètres.
Download or read book Handbook of Asynchronous Machines with Variable Speed written by Hubert Razik and published by John Wiley & Sons. This book was released on 2013-01-24 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook deals with the asynchronous machine in its close environment. It was born from a reflection on this electromagnetic converter whose integration in industrial environments takes a wide part. Previously this type of motor operated at fixed speed, from now on it has been integrated more and more in processes at variable speed. For this reason it seemed useful, or necessary, to write a handbook on the various aspects from the motor in itself, via the control and while finishing by the diagnosis aspect. Indeed, an asynchronous motor is used nowadays in industry where variation speed and reliability are necessary. We must know permanently for the sensitive systems, the state of process and to inform the operator of the appearance of any anomaly and its severity.
Download or read book Power Electronics Converters and their Control for Renewable Energy Applications written by Arezki Fekik and published by Elsevier. This book was released on 2023-06-21 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power Electronics Converters and their Control for Renewable Energy Applications provides information that helps to solve common challenges with power electronics converters, including loss by switching, heating of power switches, management of switching time, improvement of the quality of the signals delivered by power converters, and improvement of the quality of energy produced by renewable energy sources. This book is of interest to academics, researchers, and engineers in renewable energy, power systems, electrical engineering, electronics, and mechanical engineering. Includes important visual illustrations and imagery of concise circuit schematics and renewable energy applications Features a templated approach for step-by-step implementation of the new MPPT algorithm based on recent and intelligent techniques Provides methods for optimal harnessing of energy from renewable energy sources and converter topology synthesis
Download or read book ELECTRIMACS 2019 written by Walter Zamboni and published by Springer Nature. This book was released on 2020-04-25 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects a selection of papers presented at ELECTRIMACS 2019, the 13th international conference of the IMACS TC1 Committee, held in Salerno, Italy, on 21st-23rd May 2019. The conference papers deal with modelling, simulation, analysis, control, power management, design optimization, identification and diagnostics in electrical power engineering. The main application fields include electric machines and electromagnetic devices, power electronics, transportation systems, smart grids, electric and hybrid vehicles, renewable energy systems, energy storage, batteries, supercapacitors and fuel cells, and wireless power transfer. The contributions included in Volume 1 are particularly focused on electrical engineering simulation aspects and innovative applications.
Download or read book Electrical Machines Diagnosis written by Jean-Claude Trigeassou and published by John Wiley & Sons. This book was released on 2013-02-07 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring and diagnosis of electrical machine faults is a scientific and economic issue which is motivated by objectives for reliability and serviceability in electrical drives. This book provides a survey of the techniques used to detect the faults occurring in electrical drives: electrical, thermal and mechanical faults of the electrical machine, faults of the static converter and faults of the energy storage unit. Diagnosis of faults occurring in electrical drives is an essential part of a global monitoring system used to improve reliability and serviceability. This diagnosis is performed with a large variety of techniques: parameter estimation, state observation, Kalman filtering, spectral analysis, neural networks, fuzzy logic, artificial intelligence, etc. Particular emphasis in this book is put on the modeling of the electrical machine in faulty situations. Electrical Machines Diagnosis presents original results obtained mainly by French researchers in different domains. It will be useful as a guideline for the conception of more robust electrical machines and indeed for engineers who have to monitor and maintain electrical drives. As the monitoring and diagnosis of electrical machines is still an open domain, this book will also be very useful to researchers.
Download or read book Out Of Control written by Kevin Kelly and published by Basic Books. This book was released on 2009-04-30 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Out of Control chronicles the dawn of a new era in which the machines and systems that drive our economy are so complex and autonomous as to be indistinguishable from living things.
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 The Organization of Behavior written by Donald Olding Hebb and published by . This book was released on 1966 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Sports Medicine and Science The Paralympic Athlete written by Yves Vanlandewijck and published by Wiley-Blackwell. This book was released on 2011-01-31 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This brand new Handbook addresses Paralympic sports and athletes, providing practical information on the medical issues, biological factors in the performance of the sports and physical conditioning. The book begins with a comprehensive introduction of the Paralympic athlete, followed by discipline-specific reviews from leading authorities in disability sport science, each covering the biomechanics, physiology, medicine, philosophy, sociology and psychology of the discipline. The Paralympic Athlete also addresses recent assessment and training tools to enhance the performance of athletes, particularly useful for trainers and coaches, and examples of best practice on athletes' scientific counseling are also presented. This new title sits in a series of specialist reference volumes, ideal for the use of professionals working directly with competitive athletes.
Download or read book The Induction Machine Handbook written by Ion Boldea and published by CRC Press. This book was released on 2010-12-12 with total page 965 pages. Available in PDF, EPUB and Kindle. Book excerpt: Often called the workhorse of industry, the advent of power electronics and advances in digital control are transforming the induction motor into the racehorse of industrial motion control. Now, the classic texts on induction machines are nearly three decades old, while more recent books on electric motors lack the necessary depth and detail on ind
Download or read book Traffic Control Systems Handbook written by and published by . This book was released on 1976 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook, which was developed in recognition of the need for the compilation and dissemination of information on advanced traffic control systems, presents the basic principles for the planning, design, and implementation of such systems for urban streets and freeways. The presentation concept and organization of this handbook is developed from the viewpoint of systems engineering. Traffic control studies are described, and traffic control and surveillance concepts are reviewed. Hardware components are outlined, and computer concepts, and communication concepts are stated. Local and central controllers are described, as well as display, television and driver information systems. Available systems technology and candidate system definition, evaluation and implementation are also covered. The management of traffic control systems is discussed.
Download or read book Smart Water Utilities written by Pernille Ingildsen and published by IWA Publishing. This book was released on 2016-05-15 with total page 307 pages. Available in PDF, EPUB and Kindle. Book excerpt: Today there is increasing pressure on the water infrastructure and although unsustainable water extraction and wastewater handling can continue for a while, at some point water needs to be managed in a way that is sustainable in the long-term. We need to handle water utilities “smarter”. New and effective tools and technologies are becoming available at an affordable cost and these technologies are steadily changing water infrastructure options. The quality and robustness of sensors are increasing rapidly and their reliability makes the automatic handling of critical processes viable. Online and real-time control means safer and more effective operation. The combination of better sensors and new water treatment technologies is a strong enabler for decentralised and diversified water treatment. Plants can be run with a minimum of personnel attendance. In the future, thousands of sensors in the water utility cycle will handle all the complexity in an effective way. Smart Water Utilities: Complexity Made Simple provides a framework for Smart Water Utilities based on an M-A-D (Measurement-Analysis-Decision). This enables the organisation and implementation of “Smart” in a water utility by providing an overview of supporting technologies and methods. The book presents an introduction to methods and tools, providing a perspective of what can and could be achieved. It provides a toolbox for all water challenges and is essential reading for the Water Utility Manager, Engineer and Director and for Consultants, Designers and Researchers.
