Hybrid transient stability analysis [power systems]

Author

Maria, G.A. ; Tang, C. ; Kim, J.

Author_Institution

Ontario Hydro, Toronto, Ont., Canada

Volume

5

Issue

2

fYear

1990

fDate

5/1/1990 12:00:00 AM

Firstpage

384

Lastpage

393

Abstract

The hybrid method of power system transient stability analysis, which combines the desirable features of both the time-domain simulation technique and the direct method of transient stability analysis, is presented. The hybrid method first computes the actual system trajectory using time-domain simulation, then evaluates the transient energy function in order to derive a stability index for fast derivation of transient stability limits. Proper criteria are proposed to stop the time-domain simulation of the system trajectory to reduce CPU time, once the status of the system has been identified. The method was successfully applied to three test systems varying in size from four generators to 50 generators. The method is shown to be a potential tool for online calculation of transient stability limits

Keywords

electric generators; power system analysis computing; stability; transients; CPU time; generators; hybrid transient stability analysis; power system; time-domain simulation technique; Analytical models; Computational modeling; Hybrid power systems; Power system analysis computing; Power system simulation; Power system stability; Power system transients; Stability analysis; Time domain analysis; Transient analysis;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.54544

Filename

54544