Direct transient stability assessment with excitation control

A. A. Fouad, V. Vittal, Y. X. Ni, H. R. Pota, K. Nodehi, H. M. Zein-EIdin, E. Vaahedi

Research output: Contribution to journalArticlepeer-review

30 Scopus citations


Recently the authors incorporated the effect of excitation control on the transient energy of a multi-machine power system during the first swing. The models used are: the generator represented by the two-axis model and the exciter represented by one gain, one time constant and one limiter. In this paper the parameters of the newly developed transient energy function, which assumes a constant average internal EMF, are computed. The critical value of this transient energy is determined and its use in transient stability assessment is investigated. A procedure for transient stability assessment using the new energy function has been developed and successfully applied to fault disturbances in two test networks.

Original languageEnglish (US)
Pages (from-to)75-82
Number of pages8
JournalIEEE Transactions on Power Systems
Issue number1
StatePublished - Feb 1989
Externally publishedYes


  • Critical Energy
  • Direct Method
  • Excitation Control
  • Excitation System Model
  • First Swing Stability
  • Transient Energy Function
  • Transient Stability
  • Transient Stability Assessment

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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