A performance-index guided continuation method for fast computation of saddle-node bifurcation in power systems

Ke Chen, Anwar Hussein, Martin E. Bradley, Haibin Wan

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Simple performance indices for detecting and predicting stability problems such as the voltage collapse are useful analysis tools for planning and operating engineers in power utilities. We propose a fast guided continuation method to predict or compute a reliable performance index that takes proper care of limits of reactive power resources. The main feature is the novel combination of a Q limits index and a performance index to achieve computational efficiency and index reliability. Numerical experiments using standard IEEE 9-, 14-, 30-, 57-, 118-, 300-bus systems and a NGC 40-bus system show that the proposed method can predict or compute the voltage collapse point much faster than the standard continuation.

Original languageEnglish
Pages (from-to)753-760
Number of pages8
JournalIEEE Transactions on Power Systems
Volume18
Issue number2
DOIs
Publication statusPublished - May 2003

Keywords

  • Continuation method
  • Performance indices
  • Power flow equations
  • Q limit index
  • Reactive power limits
  • Saddle-node bifurcation
  • Voltage collapse

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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