A three phase, soft switching, transformer isolated, unity power factor front end converter

Author

de Rooij, M.A. ; Ferreira, J.A. ; van Wyk, J.D.

Author_Institution

Ind. Electr. Technol. Res. Group, Rand Afrikaans Univ., Johannesburg, South Africa

Volume

1

fYear

1998

fDate

17-22 May 1998

Firstpage

798

Abstract

This paper investigates a three phase unity power factor rectifier that provides galvanic isolation, and a controllable DC output and represents a new technology for this field of application. For galvanic isolation the converter is based on three single phase converters, each a DC to DC partial series resonant converter, all connected in star on the input and in series on the output. The compound converter exhibits a high efficiency and features low EMI. A 3 kW three phase experimental converter is evaluated

Keywords

DC-DC power convertors; power factor; rectifying circuits; resonant power convertors; switching circuits; 3 kW; DC to DC partial series resonant converter; controllable DC output; galvanic isolation; high efficiency; input star connection; low EMI; output series connection; single phase converters; soft switching; three phase; three phase unity power factor rectifier; transformer isolated converter; unity power factor front end converter; Analog-digital conversion; DC-DC power converters; Frequency conversion; Galvanizing; Isolation technology; Reactive power; Rectifiers; Resonance; Switching converters; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 1998. PESC 98 Record. 29th Annual IEEE

Conference_Location

Fukuoka

ISSN

0275-9306

Print_ISBN

0-7803-4489-8

Type

conf

DOI

10.1109/PESC.1998.701990

Filename

701990