Computational Techniques for V

ComputaTIonal Techniques for Voltage Stability Assessment and Control This book is intended to present bifurcaTIon and conTInuaTIon based computationaltechniques for voltage stability assessment and control.Chapters 1 and 2 provide background material for this book. Chapter 2 reviewsvarious aspects of bifurcation phenomena and includes numericaltechniques that can detect the bifurcation points. Chapter 3 discusses theapplication of continuation methods to power system voltage stability andprovides extensive coverage on continuation power flow. Chapter 4 presentsgeneral sensitivity techniques available in the literature that includesmargin sensitivity. Chapter 5 introduces voltage stability margin boundarytracing. This chapter also discusses application of continuation power flowfor ATC. Chapter 6 finally presents time domain techniques that can captureshort as well as long term time scales involved in voltage stability.Decoupled time domain simulation is introduced in this chapter. Basicsteps involved in various methods in each chapter are first demonstratedthrough a two bus example for better understanding of these techniques.I am grateful to Prof Pai, the series editor, who encouraged me and helpedme to write this book.I would like to acknowledge the help from my previous and current graduatestudents who helped me directly or indirectly in many ways to organizethis book. In general would like to thank Srinivasu Battula, Qin Wang,Zheng Zhou, Gang Shen, Cheng Luo and Ashutosh Tiwari. In particular , Iwould like to acknowledge contributions of Colin Christy (for chapter 3) ,Byongjun Lee (for chapter2) , Bo Long (for chapters 2,3 and 4) , YuanZhou (for chapters 3 and 5), Geng Wang (for chapter 5) and Dan Yang (forchapter 6).I would also like to acknowledge IEEE and Sadhana for some of the figuresand material I borrowed from my papers in these journals.