Criterion for inductive compensation location to enhance system steady state stability

Author

Elrazaz, Z. ; Al-Ohaly, A.

Author_Institution

Dept. of Electr. Eng., King Saud Univ., Riyadh, Saudi Arabia

Volume

8

Issue

4

fYear

1993

fDate

11/1/1993 12:00:00 AM

Firstpage

1545

Lastpage

1549

Abstract

Huge reactive power surplus at light load operation may force system generators to operate in the under excited mode which reduces system stability margin. In this paper analytical expressions for generator reactive power sensitivities with respect to reactive compensation are derived. A criterion based upon these sensitivities with respect to reactive compensation are derived. A criterion based upon these sensitivities for choosing reactive compensation locations to improve system steady state stability is proposed. The effectiveness of this proposed criterion is demonstrated through application to the Saudi Consolidated Electric Company (SCECO)-Central Power system

Keywords

electric generators; power inductors; power system stability; reactive power; static VAr compensators; Saudi Consolidated Electric Company; generators; inductive compensation location; light load operation; power systems; reactive compensation locations; reactive power sensitivities; reactive power surplus; static VAr compensators; under excited mode operation; Difference equations; Power engineering and energy; Power generation; Power system analysis computing; Power system stability; Reactive power; Stability criteria; Stator cores; Steady-state; Voltage;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.260958

Filename

260958