Title :
Vector analysis and control of advanced static VAr compensators
Author :
Schauder, C. ; Mehta, H.
Author_Institution :
Westinghouse STC, Pittsburgh, PA, USA
fDate :
7/1/1993 12:00:00 AM
Abstract :
The advanced static Var compensator (now widely known as the static condenser or STATCON) uses a high power self-commutating inverter to draw reactive current from a transmission line. Two fundamentally different types of invertor can be used for this purpose, one providing control of output voltage magnitude and phase angle, and the other having only phase angle control. For each of these types, the governing equations are derived, and frequency domain analysis is used to obtain the relevant transfer functions for control system synthesis. Further analysis is provided to determine the response of the STATCON to negative sequence and harmonic voltage components on the transmission line. The results are illustrated with measured waveforms obtained from a scaled analogue model of an 80 MVAr STATCON
Keywords :
commutation; compensation; control system synthesis; invertors; phase control; power system control; power transmission lines; reactive power; static VAr compensators; transfer functions; voltage control; 80 MVA; STATCON; control system synthesis; frequency domain analysis; harmonic voltage; negative sequence voltages; phase angle control; power system control; reactive power compensation; response; self-commutating inverter; static VAr compensators; static condenser; transfer functions; transmission line; vector control; voltage control;
Journal_Title :
Generation, Transmission and Distribution, IEE Proceedings C
