This page intentionally left blank Copyright © 2006, New Age International (P) Ltd., Publishers Published by New Age International (P) Ltd., Publishers All rights reserved. No part of this ebook may be reproduced in any form, by photostat, microfilm, xerography, or any other means, or incorporated into any information retrieval system, electronic or mechanical, without the written permission of the publisher. All inquiries should be emailed to
[email protected] ISBN (13) : 978-81-224-2515-4 PUBLISHING FOR ONE WORLD NEW AGE INTERNATIONAL (P) LIMITED, PUBLISHERS 4835/24, Ansari Road, Daryaganj, New Delhi - 110002 Visit us at www.newagepublishers.com To My Wife Shanta Son Debojyoti and Daughter Deboleena This page intentionally left blank Preface During the last fifty years, the field of Electrical Engineering has become very diversified and is much broader in scope now than ever before. With emerging new topic areas, ranging from microelectro-mechanics to light-wave technology, the number of Electrical Engineering courses available to students has considerably increased. In order to keep pace with the progress in technology, we must adopt to provide the students with fundamental knowledge in several areas. Power System Engineering is one of such areas. This book describes the various topics in power system engineering which are normally not available in a single volume. To briefly review the content of this text, Chapter 1 provides an introduction to basic concepts relating to structure of power system and few other important aspects. It is intended to give an overview and covered in-depth. Chapters 2 and 3 discuss the parameters of multicircuit transmission lines. These parameters are computed for the balanced system on a per phase basis. Chapter 4 addresses the steady-state and transient presentation and modeling of synchronous machine. Chapter 5 deals with modeling of components of power system. Also, the per unit system is presented, followed by the single line diagram representation of the network. Chapter 6 thoroughly covers transmission line modeling and the performance and compensation of the transmission lines. This chapter provides the concept and tools necessary for the preliminary transmission line design. Chapters 7 presents comprehensive coverage of the load flow solution of power system networks during normal operation. Commonly used iterative techniques for the solution of nonlinear algebraic equation are discussed. Different approaches to the load flow solution are described. Chapters 8, 9 and 10 cover balanced and unbalanced fault analysis. The bus impedance matrix by the ZBUS building algorithms is formulated and employed for the systematic computation of bus voltages and line currents during faults. Symmetrical components technique are also discussed that resolve the problem of an unbalanced circuit into a solution of number of balanced circuits. Chapter 11 discusses upon the concepts of various types of stability in power system. In particular, the concept of transient stability is well illustrated through the equal area criterion. Numerical solution for the swing equation is also defined. Chapter 12 deals with AGC of isolated and interconnected power systems. Derivation of governor and turbine models are presented. Both steady-state and dynamic analysis are presented. Treatment of generation rate constraint in mathematical model is also discussed. Multiunit AGC system is discussed. Chap