A new three-phase AC-DC zero-voltage-switching isolated converter operating in DCM

Author

Panov, Yuri V. ; Lee, Fred C. ; Cho, Jung G.

Author_Institution

Virginia Power Electron. Center, Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA

Volume

3

fYear

1995

fDate

8-12 Oct 1995

Firstpage

2602

Abstract

As an alternative to two-stage cascaded AC-DC power converters, the paper presents a single-stage three-phase rectifier with input/output isolation. The rectifier contains five active devices driven by a simple PWM controller. The proposed power converter operates in the discontinuous conduction mode (DCM) and provides an improved input current spectrum. Zero voltage switching for all active devices and diodes is implemented in the suggested power converter with low effort. Operational principles and design, as well as experimental results obtained from a 5 kW prototype, are also discussed

Keywords

AC-DC power convertors; PWM power convertors; power system harmonics; rectifying circuits; switching circuits; 5 kW; PWM controller; discontinuous conduction mode; input current spectrum; input/output isolation; single-stage three-phase rectifier; three-phase AC-DC power convertor; zero voltage switching; AC-DC power converters; Analog-digital conversion; Bridge circuits; Power system reliability; Pulse width modulation; Rectifiers; Switches; Switching circuits; Switching converters; Zero voltage switching;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 1995. Thirtieth IAS Annual Meeting, IAS '95., Conference Record of the 1995 IEEE

Conference_Location

Orlando, FL

ISSN

0197-2618

Print_ISBN

0-7803-3008-0

Type

conf

DOI

10.1109/IAS.1995.530634

Filename

530634