Download or read book Technocratic Dreaming written by Paul James and published by . This book was released on 1990 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technocratic dreaming of very fast trains and Japanese designer cities.

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 Advanced Direct Thrust Force Control of Linear Permanent Magnet Synchronous Motor written by Muhammad Ali Masood Cheema and published by Springer Nature. This book was released on 2020-02-13 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the direct thrust force control (DTFC) of tubular surface-mount linear permanent magnet synchronous motors (linear PMSMs). It presents a detailed account and analysis of several advanced nonlinear control schemes, based on the direct thrust control principle, to achieve a reduction in steady-state ripple in thrust force with faster transient response, and describes their experimental validation. It also provides rigorous details of the dynamic modelling of linear PMSMs from a control system perspective, and demonstrates the superior control performance of the proposed techniques compared to the current state-of-the-art techniques. Lastly, the book proposes and validates a stator flux observer for sensorless speed estimation comprising a linear state observer and an improved sliding mode component.

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 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 Etude et Optimisation d une Machine Synchrone Double Excitation written by Daanoune Abdeljalil and published by Presses Academiques Francophones. This book was released on 2013-01 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans un contexte ou la question de la preservation de l'environnement est devenue un sujet societal majeur, la recherche de nouvelles technologies pour remplacer la voiture a essence constitue un veritable enjeu industriel. Les vehicules hybrides et electriques sont une alternative prometteuse aux vehicules conventionnels. Ce travail porte sur la conception et l'optimisation des machines electriques pour la motorisation de ces voitures. Au cours de ces travaux, nous avons developpe une nouvelle methodologie de dimensionnement et d'optimisation des machines synchrones a double excitation. L'interet de cette methode est son bon compromis entre la precision et le temps de calcul et sa capacite d'adaptation a plusieurs types de machines. Le second volet de ce livre est consacre a la proposition d'une nouvelle structure de machine synchrone a rotor bobine. Une technique originale de compensation de la reaction magnetique d'induit est mise en place, elle consiste en l'insertion d'aimants secondaires permettant de creer un flux dans l'axe q de la machine. Ce dernier a pour role d'affaiblir le flux de la reaction magnetique d'induit.

Download or read book Permanent Magnet Synchronous Machines and Drives written by Wei Xu and published by . This book was released on 2023-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Permanent magnet synchronous motors (PMSMs) have been used in the field of electric vehicles 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 optimal proportional-integral (PI) parameters for robust stability, faster dynamic response, and higher efficiency in the flux-weakening region. Combined design of a PI current regulator and a varying switching frequency PWM is presented, including improved linear model predictive control (MPC) control strategy. This book is aimed at researchers and graduate students in electrical Engineering, systems and control, and electric vehicles. Features: Implements evolutionary optimization algorithms are directly implemented to improve Permanent Magnet Synchronous Machines (PMSM) performance. Provides coverage of PMSM control design in the flux weakening region. Proposes a modern control method of model predictive control is proposed to improve the dynamic performance of interior PMSM. Studies the dynamic performance of two kinds of the PMSMs that of surface mounted and interior permanent magnet types. Includes several case studies and illustrative examples with MATLABa. This book is aimed at researchers, graduate students, and libraries in electrical engineering with specialization in systems and control and electric vehicles"--