Download or read book Commande sans capteur de la machine synchrone aimants permanents written by Omrane Ines and published by Academiques. This book was released on 2015-02-05 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: La commande vectorielle de la machine synchrone a aimants permanents necessite une connaissance precise de la position rotorique. Traditionnellement, cette position est obtenue a partir de l'utilisation d'un capteur mecanique. Depuis des annees, l'attention de la communaute scientifique s'est portee sur la limitation du nombre de capteurs vu que leur presence, non seulement augmente le cout et la complexite materielle totale, mais aussi reduit sa fiabilite avec une sensibilite additionnelle aux perturbations exterieures. Dans une premiere partie, nous proposons le capteur le mieux adapte pour une application automobile. Ce capteur est base sur le couplage intelligent entre un observateur et un capteur logiciel base sur la technique d'injection de signaux. Dans une deuxieme partie, nous proposons une methode simple et rapide permettant l'estimation de la resistance et des inductances statoriques a l'arret. La combinaison de l'identification a l'arret et du capteur logiciel permet une bonne estimation de la position de la machine synchrone a aimants permanents sur une large plage de vitesse y compris les basses vitesses et a l'arret.

Download or read book Global Warming and Climate Change written by Emma Carlson Berne and published by Referencepoint Press. This book was released on 2008 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Throughout the world, the cause and impact of global warming and climate change is being passionately debated. While many claim that a climate crisis is imminent if greenhouse gases are not curbed, others argue that the effects have been overblown. Through objective overviews, primary sources, and full-color illustrations, this title will examine What Is Global Warming and Climate Change? What Are the Consequences of Global Warming? What Are the Controversies Surrounding Global Warming? What Are the Solutions for Global Warming?

Download or read book La commande lectronique des machines written by Michel Pinard and published by Dunod. This book was released on 2013-08-28 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cet ouvrage permet de maîtriser les bases du contrôle et de la commande des machines électriques. Il est constitué d'une soixantaine de fiches pratiques rassemblées dans huit dossiers thématiques. Ces dossiers abordent successivement les questions des alimentations électriques, des convertisseurs de puissance, des différents types de machines (synchrones ou asynchrones), et des différents modes de commande et d'asservissement. Chaque fiche pose un problème précis et ponctuel et en explique la solution. Dans de nombreux cas, des simulations sur les logiciels tels que PSIM, VisSIM et LabVIEW permettent une approche concrète et opérationnelle des difficultés rencontrées dans la mise au point d'un système de commande.

Download or read book Position Sensorless Control Techniques for Permanent Magnet Synchronous Machine Drives written by Gaolin Wang and published by Springer Nature. This book was released on 2019-11-15 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book focuses on position sensorless control for PMSM drives, addressing both basic principles and experimental evaluation. It provides an in-depth study on a number of major topics, such as model-based sensorless control, saliency-based sensorless control, position estimation error ripple elimination and acoustic noise reduction. Offering a comprehensive and systematic overview of position sensorless control and practical issues it is particularly suitable for readers interested in the sensorless control techniques for PMSM drives. The book is also a valuable resource for researchers, engineers, and graduate students in fields of ac motor drives and sensorless control.

Download or read book Permanent Magnet Synchronous Machines and Drives written by Wei Xu and published by CRC Press. This book was released on 2023-07-31 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Permanent magnet synchronous motors (PMSMs) are popular in the electric vehicle industry due to their high-power density, large torque-to-inertia ratio, and high reliability. This book presents an improved field-oriented control (FOC) strategy for PMSMs that utilizes optimal proportional-integral (PI) parameters to achieve robust stability, faster dynamic response, and higher efficiency in the flux-weakening region. The book covers the combined design of a PI current regulator and varying switching frequency pulse-width modulation (PWM), along with an improved linear model predictive control (MPC) strategy. Researchers and graduate students in electrical engineering, systems and control, and electric vehicles will find this book useful. Features: • Implements evolutionary optimization algorithms to improve PMSM performance. • Provides coverage of PMSM control design in the flux-weakening region. • Proposes a modern method of model predictive control to improve the dynamic performance of interior PMSM. • Studies the dynamic performance of two kinds of PMSMs: surface-mounted and interior permanent magnet types. • Includes several case studies and illustrative examples with MATLAB®. This book is aimed at researchers, graduate students, and libraries in electrical engineering with specialization in systems and control and electric vehicles.

Download or read book Commande vectorielle sans capteur des machines asynchrones written by Claude Chaigne and published by Hermes Science Publications. This book was released on 2005 with total page 330 pages. Available in PDF, EPUB and Kindle. Book excerpt: