Phase-shift controlled DC-DC convertor with bi-directional power flow

Author

Chan, H.L. ; Cheng, K.W.E. ; Sutanto, D.

Author_Institution

Dept. of Electr. Eng., Hong Kong Polytech., Hung Hom, China

Volume

148

Issue

2

fYear

2001

fDate

3/1/2001 12:00:00 AM

Firstpage

193

Lastpage

201

Abstract

A new zero-voltage switching (ZVS) phase-shift controlled bi-directional DC-DC convertor is proposed. It possesses the conventional features of phase-shifted convertors: constant switching frequency, ZVS and voltage regulation by phase-shift control. However, the convertor has been improved by developing a bi-directional power flow capability and applying synchronous rectification: hence, the on-state voltage drop of the active devices is small. It is therefore recommended for use in electric vehicles. The principle of circuit operation of the proposed convertor is described in detail with mathematical analysis, and experimental results are presented to verify the concept

Keywords

DC-DC power convertors; electric vehicles; load flow; phase control; switching circuits; voltage control; ZVS; bi-directional DC-DC convertor; bi-directional power flow; circuit operation; constant switching frequency; electric vehicles; mathematical analysis; on-state voltage drop; phase-shift controlled DC-DC convertor; synchronous rectification; voltage regulation; zero-voltage switching;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:20010097

Filename

918372