Soft-switched PWM converter with inductive DC filter

Author

Leonardi, F. ; Rossetto, L. ; Scandellari, A. ; Speranza, R. ; Tomasin, P. ; Tenti, P. ; Divan, D.M.

Author_Institution

Dept. of Electr. Eng., Padova Univ., Italy

fYear

1993

fDate

19-21 April 1993

Firstpage

123

Lastpage

128

Abstract

This paper presents a soft-switched AC/DC power converter structure, useful for current-fed inverters and forced commutated PWM rectifiers with an inductive load. Typical applications are high-power AC motor drives, magnet power supplies and active power filters with inductive energy storage. As compared to hard switched converters, the proposed solution calls for some increase of the circuit complexity, but provides improved input and output performances due to the higher switching frequency. Further improvements are ensured by proper control of the commutation process. Actual power converter capabilities are demonstrated by experimental results.<>

Keywords

commutation; filters; invertors; power convertors; pulse width modulation; rectifiers; switching circuits; AC motor drives; AC/DC power converter; active power filters; commutation; current-fed inverters; forced commutated PWM rectifiers; inductive DC filter; inductive energy storage; inductive load; magnet power supplies; performances; soft switching; switching frequency; AC motors; Active filters; Analog-digital conversion; Commutation; Energy storage; Magnetic separation; Power supplies; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Conversion Conference, 1993. Yokohama 1993., Conference Record of the

Conference_Location

Yokohama, Japan

Print_ISBN

0-7803-0471-3

Type

conf

DOI

10.1109/PCCON.1993.264236

Filename

264236