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Abstract
Forced commutation schemes have been used in two-pulse converters in order to improve power factor and system efficiency. Transformer-coupled forced -commutation circuit is proposed for a two-pulse converter with a centre-tap transformer. Commutation process is analysed and normalized turn-off time curves are presented. The effect of load current on the commutation process is discussed. The proposed converter configuration is useful both for motoring and regenerative operations of series as well as separately excited dc motors. The results are experimentally verified.
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G.N. Revankar
M. V. Choudhary was born in Velangi, Andhra Pradesh. He did his graduation from the College of Engineering, Kakinada. He obtained MTech (Power Apparatus and Systems) from the Indian Institute of Technology, New Delhi. Presently he is working for his PhD in Electrical Engineering from the Indian Institute of Technology, Bombay.