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A new soft-switched, thyristor-based, regenerative, quasi-resonant, current regulated inverter

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2 Author(s)
Kotsopoulos, A. ; Dept. of Electr. & Comput. Syst. Eng., Monash Univ., Clayton, Vic., Australia ; Holmes, D.G.

A variety of soft-switching techniques have been proposed to reduce the switching losses and EMI problems that occur with higher switching frequencies in hard-switched converters. In this paper, a new, quasi-resonant, soft-switched, three-phase inverter is presented which uses 12 thyristors as the power electronic switches, and hence has potential for use in high-power applications. The converter is fully current-regulated, suitable for high-performance motor drive applications, and is capable of 4-quadrant operation to allow regeneration back into the DC supply. The operation and the control of the inverter are described in detail and simulation and experimental results are presented

Published in:
Industry Applications, IEEE Transactions on  (Volume:32 ,  Issue: 2 )

Date of Publication: Mar/Apr 1996

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