Title :
Study of a STATCOM application for voltage stability evaluated by dynamic PV curves and time simulations
Author :
Yonezawa, Hi Ros hi ; Shimato, Toshiaki ; Tsukada, Michiharu ; Matsuno, Katsuhiko ; Iyoda, I. ; Paserba, John J. ; Reed, Gregory F.
Author_Institution :
Kansai Electr. Power Co. Inc., Osaka, Japan
Abstract :
In this paper, voltage stability is evaluated by both dynamic PV curves and time-domain simulations, considering the combined dynamic control effects of a static compensator (STATCOM) and transformer on-load-taps (OLT). The studied system is heavily loaded at two locations and an 80 MVAr STATCOM is connected to improve the voltage stability of entire system for a contingency of a three-terminal line outage. The results presented in this paper: (a) show that a STATCOM can greatly improve the voltage stability of a heavily loaded system; (b) quantify the combined impacts of STATCOM and OLT control; (c) illustrate that the margin of stability can be easily and effectively evaluated by PV curves; and (d) correlate time-domain simulations and PV curves for a system with a STATCOM and OLT dynamic control
Keywords :
control system analysis; flexible AC transmission systems; power system control; power system stability; reactive power control; static VAr compensators; time-domain analysis; voltage control; STATCOM application; control simulation; dynamic PV curves; dynamic control; heavily loaded system; stability margin; static compensator; three-terminal line outage; time simulations; time-domain simulations; transformer on-load-taps; voltage stability; Automatic voltage control; Control systems; Power system dynamics; Power system reliability; Power system simulation; Power system stability; Reactive power; STATCOM; Shunt (electrical); Voltage control;
Conference_Titel :
Power Engineering Society Winter Meeting, 2000. IEEE
Print_ISBN :
0-7803-5935-6
DOI :
10.1109/PESW.2000.850196
