Thermal Effects in Electrical Machines
So far our considerations were only dealing with mechanical phenomena and the pertinent steady-state and dynamic conditions, but suitable torque/speed- curves and adequate power are not the only criteria for designing electrical drives.
- PDF / 42,790,935 Bytes
- 474 Pages / 439.37 x 666.14 pts Page_size
- 34 Downloads / 240 Views
Springer-Verlag Berlin Heidelberg GmbH
Engineering
ONLINE LlBRARY
http://www.springer.de/engine/
Werner Leonhard
Control of Electrical Drives Third Edition
With 299 Figures
,
Springer
Professor WBRNBR LBONHARD Technische Universität Braunschweig Institut für Regelungstechnik Hans Sommer Str. 66 38106 Braunschweig
e-mail: [email protected] Internet: http://www.ifr.ing.tu-bs.de
ISBN 978-3-642-62609-8
Llbrary of Congress Cataloging-in-Publication Data
Leonhard, Werner: Control of Electrical Drives. - Third edition.! Werner Leonhard. - Berlin; Heidelberg; New York; Barcelona; Hong Kong; London; Milan; Paris; Singapore; Tokyo: Springer 2001 (Power Systems> ISBN 978-3-642-62609-8 ISBN 978-3-642-56649-3 (eBook) DOI 10.1007/978-3-642-56649-3 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilm or in other ways, and storage in data banks. Duplication of this publication or parts thereofis permitted only under the provisions ofthe German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer-Verlag. Violations are liable for prosecution act under German Copyright Law. http://www.springer.de @Springer-VerlagBerlin Heidelberg 2001 Originally published by Springer-Verlag Berlin Heidelberg New York in 2001 Softcover reprint ofthe hardcover 3rd edition 2001 The use of general descriptive names, 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 protective laws and regulations and therefore free for general use. Typesetting: Camera ready by author Cover-Design: de 'blik, Berlin Printed on acid free paper SPIN: 10833196
62!30201kk - 5 4 3 210
Preface
Electrical drives play an important role as electromechanical energy converters in transportation, material handling and most production processes. The ease of controlling electrical drives is an important aspect for meeting the increasing demands by the user with respect to flexibility and precision, caused by technological progress in industry as well as the need for energy conservation. At the same time, the control of electrical drives has provided strong incentives to control engineering in general, leading to the development of new control structures and their introduction to other areas of control. This is due to the stringent operating conditions and widely varying specifications - a drive may alternately require control of torque, acceleration, speed or position - and the fact that most electric drives have - in contrast to chemical or thermal processes - well defined structures and consistent dynamic characteristics. During the last years the field of controlled electrical drives has undergone rapid expansion due mainly to the advances of semiconductors in the form of power electronics as well
