Title :
A multi-module PWM switched-reactor-based static VAr compensator
Author :
Lopes, Luiz A C ; Jóos, Géza ; Ooi, Boon-Teck
Author_Institution :
Dept. of Electr. Eng., McGill Univ., Montreal, Que., Canada
Abstract :
This paper presents a variable reactance-type static VAr compensator (SVC) which employs force-commutated switches as well as thyristors. The proposed compensator employs thyristor switched capacitors (TSC) and a fixed capacitor bank to control, in steps, the amount of reactive power generated. Fine adjustment of the reactive power generated and also the reactive power absorbed by the SVC are obtained with N modules of a new four-switch (force-commutated) PWM controllable reactor. These are controlled with phase shifted carriers in order to achieve harmonic cancellation. The features of this multi-module PWM SVC are analyzed using switching functions and confirmed with simulation results
Keywords :
PWM power convertors; commutation; power capacitors; power semiconductor switches; static VAr compensators; switched capacitor networks; thyristor convertors; force-commutated controllable reactor; multi-module PWM SVC; power convertors; reactive power generation; simulation; switching functions; thyristor switched capacitors; variable reactance-type static VAr compensator; Analytical models; Capacitors; Force control; Inductors; Power generation; Pulse width modulation; Reactive power control; Static VAr compensators; Switches; Thyristors;
Conference_Titel :
Power Electronics Specialists Conference, 1996. PESC '96 Record., 27th Annual IEEE
Conference_Location :
Baveno
Print_ISBN :
0-7803-3500-7
DOI :
10.1109/PESC.1996.548629
