Title :
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
fDate :
11/1/1993 12:00:00 AM
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;
Journal_Title :
Power Systems, IEEE Transactions on
