A novel soft-switched PWM current source rectifier/inverter

Author

Moschopoulos, Gerry ; Joos, Gem

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que., Canada

fYear

1994

fDate

20-25 Jun 1994

Firstpage

978

Abstract

A novel soft-switched PWM current source rectifier/inverter (CSR/I) is proposed in this paper. It reduces switching losses without requiring costly and complex energy recovery circuitry. Soft-switching operation is, instead, achieved by using an auxiliary circuit consisting of only two additional switches and a few passive components. The proposed converter can be operated with any known PWM technique for CSR/Is, unlike other CSR/Is which can only operate with dedicated and complex PWM schemes or with discrete pulse modulation. In this paper, the modes of operation of the power converter are explained and analyzed, and a set of design guidelines is developed. The feasibility of the power converter is shown with results obtained from an experimental prototype

Keywords

AC-DC power convertors; DC-AC power convertors; PWM invertors; PWM power convertors; network analysis; network synthesis; power semiconductor switches; rectifiers; rectifying circuits; switching circuits; auxiliary circuit; design guidelines; operation modes; passive components; power converter; soft-switched PWM current source rectifier/inverter; switching losses; Guidelines; Prototypes; Pulse modulation; Pulse width modulation; Pulse width modulation converters; Pulse width modulation inverters; Rectifiers; Switches; Switching circuits; Switching loss;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, PESC '94 Record., 25th Annual IEEE

Conference_Location

Taipei

Print_ISBN

0-7803-1859-5

Type

conf

DOI

10.1109/PESC.1994.373798

Filename

373798