Relationships between voltage and angle stability of power systems

C. D. Vournas, P. W. Sauer, M. A. Pai

Research output: Contribution to journalArticlepeer-review


This paper discusses modelling and theoretical issues associated with voltage and angle stability of power systems. A time-scale decomposition is performed to illustrate how the critical modes can be identified with reduced-order models and the bifurcation phenomena can be explained with these low order models. Examples are given for single and multi-machine systems.

Original languageEnglish (US)
Pages (from-to)493-500
Number of pages8
JournalInternational Journal of Electrical Power and Energy Systems
Issue number8
StatePublished - Nov 1996


  • Angle stability
  • Bifurcation
  • Reduced order modelling
  • Voltage stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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