Proposal of nonlinear stability indices of power swing oscillation in a multimachine power system

Hiroyuki Amano, Teruhisa Kumano, Toshio Inoue, Haruhtto Tamguchi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this paper, we propose new nonlinear stability indices for multimode oscillations in power systems by using normal form analysis. One of the indices indicates the characteristics of damping factor with regard to its amplitude change, and the other indicates the stability region for each oscillation mode. We could obtain more detailed information on the stability of power system by using the proposed indices together with eigenvalues in comparison with eigenvalue analysis. We show the validity of the proposed indices by numerical simulation in a multimachine power system.

Original languageEnglish
Pages (from-to)16-24
Number of pages9
JournalElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
Volume151
Issue number4
DOIs
Publication statusPublished - 1 Jun 2005

Keywords

  • Modal interaction
  • Multimachine power system
  • Nonlinearity
  • Normal form theory
  • Stability index of power swing oscillation

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