Title :
Reactive power control by using a new AC PWM power converter
Author :
Salazar, L.D. ; Vásquez, C.R. ; Wiechmann, E.P.
Author_Institution :
Concepcion Univ., Chile
Abstract :
This paper introduces a new reactive power compensator utilizing a four switches PWM AC converter. The reactive power control is performed by switching a three phase reactor with the PWM AC controller, both in parallel with a capacitor bank. The advantages to be gained include sinusoidal input-output current/voltage waveforms and high switching frequency, therefore better transient response and substantially smaller input filter. The paper analyzes the conversion characteristic and the harmonic generation. A design procedure including the input filter is proposed and the theoretical results are verified experimentally on a 30 kVA prototype
Keywords :
capacitor storage; compensation; power control; power convertors; power system control; power system harmonics; pulse width modulation; reactive power; reactors (electric); static VAr compensators; switching circuits; transient response; 30 kVA; AC PWM power converter; PWM AC controller; capacitor bank; conversion characteristic; four switches PWM AC converter; harmonic generation; high switching frequency; input filter; reactive power control; sinusoidal input-output current waveforms; sinusoidal input-output voltage waveforms; three phase reactor; transient response; Capacitors; Filters; Inductors; Pulse width modulation; Pulse width modulation converters; Reactive power; Reactive power control; Switches; Switching converters; Voltage;
Conference_Titel :
Industrial Electronics, 1994. Symposium Proceedings, ISIE '94., 1994 IEEE International Symposium on
Conference_Location :
Santiago
Print_ISBN :
0-7803-1961-3
DOI :
10.1109/ISIE.1994.333154
