Power Systems
Mukhtar Ahmad
High Performance AC Drives
Modelling Analysis and Control
ABC
Prof. Dr. Mukhtar Ahmad
Department of Electrical Engineering
Aligarh Muslim University
Aligarh, 202002
India
E-mail: mukhtar@ieee.org
ISSN 1612-1287
e-ISSN 1860-4676
ISBN 978-3-642-13149-3
e-ISBN 978-3-642-13150-9
DOI 10.1007/978-3-642-13150-9
Springer London Dordrecht Heidelberg New York
British Library Cataloguing in Publication Data
A catalogue record for this book is available from the British Library
Library of Congress Control Number: 2010926860
c Springer-Verlag London Limited 2010
Apart from any fair dealing for the purposes of research or private study, or criticism or re-
view, as permitted under the Copyright, Designs and Patents Act 1988, this publication may
only be reproduced, stored or transmitted, in any form or by any means, with the prior per-
mission in writing of the publishers, or in the case of reprographic reproduction in accordance
with the terms of licences issued by the Copyright Licensing Agency. Enquiries concerning
reproduction outside those terms should be sent to the publishers.
The use of registered names, trademarks, etc. in this publication does not imply, even in
the absence of a specific statement, that such names are exempt from the relevant laws and
regulations and therefore free for general use.
The publisher makes no representation, express or implied, with regard to the accuracy of the
information contained in this book and cannot accept any legal responsibility or liability for
any errors or omissions that may be made.
Cover Design:
deblik, Berlin, Germany
Printed on acid-free paper
Springer is part of Springer Science+Business Media (www.springer.com)
In memory of:
My father, Mr. Mushtaq Ahmad
And
My mother Mrs. Zeenat
Preface
Variable speed is one of the important requirements in most of the electric drives.
Earlier dc motors were the only drives that were used in industries requiring op-
eration over a wide range of speed with step less variation, or requiring fine accu-
racy of speed control. Such drives are known as high performance drives. AC mo-
tors because of being highly coupled non-linear devices can not provide fast
dynamic response with normal controls. However, recently, because of ready
availability of power electronic devices, and digital signal processors ac motors
are beginning to be used for high performance drives. Field oriented control or
vector control has made a fundamental change with regard to dynamic perform-
ance of ac machines. Vector control makes it possible to control induction or syn-
chronous motor in a manner similar to control scheme used for the separately ex-
cited dc motor. Recent advances in artificial intelligence techniques have also
contributed in the improvement in performance of electric drives.
This book presents a comprehensive view of high performance ac drives. It
may be considered as both a text book for graduate students and as an up-to-date
monograph. It may also be used by R & D professionals involved in the improve-
ment of performance of drives in the industries. The book will also be beneficial
to the researchers pursuing work on sensorless and direct torque control of electric
drives as up-to date references in these topics are provided. It will also provide
few examples of modeling, analysis and control of electric drives using
MATLAB/SIMULINK. An approach applying first principles that will give reader
understanding of the basic concepts of high performance ac drives has been used.
The main emphasis of the book is on sensorless control of ac drives, as these con-
trolled drives provide high performance at low cost with high reliability.
The book written mainly with the above objectives is divided into seven chap-
ters. The first chapter deals with the basics of electric drives, their requirement in
industries and load dynamics. Since the induction machine is the most commonly
used ac motor in the drives, its modeling is taken in the chapter 2.Here dynamic
model of induction motor in different reference frames have been described. Also
state space model of the induction machine used in the simulation is also dis-
cussed. In chapter 3, vector control, or field oriented control which transforms the
dynamic structure of ac machine into that of separately excited compensated dc
motor for both induction and synchronous motor is discussed. Chapter4 deals
京公网安备 11010802033920号
Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved
评论