A Novel Soft-Switched Three-Phase Single-Switch Rectifier

A new, soft-switched, three-phase, single-switch buck converter is proposed in this paper. The converter is a zero-current-switching (ZCS) quasi-resonant type converter that can operate with significantly less switching frequency variation than previously proposed converters of the same type. In the paper, the operation of conventional three-phase single-switch boost and buck converters are first reviewed, the mechanism by which the variation in switching frequency can be reduced is discussed, and the operation of the proposed converter is explained. The feasibility of the new converter is confirmed with results obtained from an experimental prototype.

[1]  S. Cuk,et al.  General properties and synthesis of PWM DC-to-DC converters , 1989, 20th Annual IEEE Power Electronics Specialists Conference.

[2]  E. H. Ismail,et al.  A single transistor three phase resonant switch for high quality rectification , 1992, PESC '92 Record. 23rd Annual IEEE Power Electronics Specialists Conference.

[3]  Dragan Maksimovic,et al.  Switching converters with wide DC conversion range , 1991 .

[4]  Esam H. Ismail,et al.  A low-distortion three-phase multi-resonant boost rectifier with zero current switching , 1995, Proceedings of 1995 IEEE Applied Power Electronics Conference and Exposition - APEC'95.

[5]  Robert W. Erickson,et al.  New single-switch three-phase high-power-factor rectifiers using multiresonant zero-current switching , 1998 .

[6]  A. Prasad,et al.  An active power factor correction technique for three-phase diode rectifiers , 1989, 20th Annual IEEE Power Electronics Specialists Conference.

[7]  Y. Jang,et al.  New single-switch three-phase high power factor rectifiers using multi-resonant zero current switching , 1994, Proceedings of 1994 IEEE Applied Power Electronics Conference and Exposition - ASPEC'94.