Extended equal area criterion revisited [EHV power systems]

Author

Xue, Y. ; Wehenkel, L. ; Belhomme, R. ; Rousseaux, P. ; Pavella, M. ; Euxibie, E. ; Heilbronn, B. ; Lesigne, J.-F.

Author_Institution

Liege Univ., Belgium

Volume

7

Issue

3

fYear

1992

fDate

8/1/1992 12:00:00 AM

Firstpage

1012

Lastpage

1022

Abstract

A study was conducted on the extra high voltage (EHV) French power system in order to explore the extended equal-area criterion and test its suitability as a fast transient stability indicator. The assumptions underlying the method are reexamined, causes liable to invalidate them are identified, and indices are devised to automatically circumvent them. The selection of candidate critical machines is also reconsidered, and an augmented criterion is proposed. The various improvements were developed and tested on about 1000 stability scenarios, covering the entire 400 kV system. The severity of the scenarios, resulting from the combination of weakened pre and post-fault configurations, subjected the method to particularly stringent conditions. The simulation results are summarized

Keywords

power systems; stability; transients; 400 kV; EHV French power system; augmented criterion; critical machines; extended equal-area criterion; fast transient stability indicator; Power system dynamics; Power system security; Power system simulation; Power system stability; Power system transients; Power systems; Real time systems; Robustness; Stability criteria; System testing;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.207314

Filename

207314