Effect of overexcitation limiters on power system long-term modeling

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

Research output: Contribution to journalArticlepeer-review


In this paper we analyze the dynamic performance of a power system with generators operating under rotor current limitation considering various models of takeover and summed-type overexcitation limiters (OELs). It is shown that in certain cases the field current limitation introduces slow generator dynamics that interact with long-term dynamic devices, such as LTCs, whereas in other cases the generator dynamics remain fast even after the limitation of rotor current. Equations suitable for a quasi steady state (qss) simulation corresponding to several OEL dynamic models are derived and the results are compared to those obtained by a full simulation.

Original languageEnglish (US)
Pages (from-to)1529-1536
Number of pages8
JournalIEEE Transactions on Energy Conversion
Issue number4
StatePublished - 1999
Externally publishedYes

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Effect of overexcitation limiters on power system long-term modeling'. Together they form a unique fingerprint.

Cite this