Distributed Power System Security Analysis

  1. Mohammad Shahidehpour and
  2. Yaoyu Wang

Published Online: 15 FEB 2005

DOI: 10.1002/0471462926.ch8

Communication and Control in Electric Power Systems

Communication and Control in Electric Power Systems

How to Cite

Shahidehpour, M. and Wang, Y. (2003) Distributed Power System Security Analysis, in Communication and Control in Electric Power Systems, John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/0471462926.ch8

Publication History

  1. Published Online: 15 FEB 2005
  2. Published Print: 5 JUN 2003

ISBN Information

Print ISBN: 9780471453253

Online ISBN: 9780471462927



  • distributed power system security analysis;
  • external equivalence;
  • static security;
  • parallel;
  • contingency area;
  • extension;
  • distributed contingency selection;
  • dynamic security analysis;
  • security-constrained OPF;
  • distributed computation


Serial processing of one computer at the system control center does not easily meet the needs of power system real-time monitoring and security analysis. In this chapter we propose an online distributed external equivalent method, and study the distributed power system security analysis method based on this equivalency method. The online distributed external equivalent is more accurate than the traditional Ward method, which is based on a pre-chosen base case. The performance index computation can be executed in a distributed manner for a more accurate and faster solution.