SEPIC-derived three-phase sinusoidal rectifier operating in discontinuous current conduction mode

Author

Oishi, H. ; Okada, H. ; Ishizaka, K. ; Itoh, R.

Author_Institution

Dept. of Electr. Eng., Oita Nat. Coll. of Technol., Japan

Volume

142

Issue

4

fYear

1995

fDate

7/1/1995 12:00:00 AM

Firstpage

239

Lastpage

245

Abstract

The paper presents a novel three-phase single-way sinusoidal rectifier to reduce supply current distortions and low power factor operations with diode bridge rectifiers. The circuit configuration is based on the cascade combination of a diode bridge and a single-ended primary inductor power convertor, in which a single power switching device provides the necessary control of the currents. If a simple pulsewidth modulation with uniform duty factor is introduced, and if the rectifier is operated in discontinuous current conduction mode, the supply currents can be sinusoidally waveshaped with a near unity power factor. Moreover, step-up and step-down characteristics of output voltage can easily be obtained. The experimental and simulated results confirm the relevance of the presented configuration as an useful rectifier with sinusoidal supply currents and step-up/down output voltage regulation

Keywords

AC-DC power convertors; PWM power convertors; bridge circuits; circuit testing; insulated gate bipolar transistors; network analysis; power bipolar transistors; power factor; power inductors; rectifying circuits; SEPIC; diode bridge rectifiers; discontinuous current conduction mode; output voltage regulation; pulsewidth modulation; single-ended primary inductor; step-down; step-up; supply current distortions; three-phase sinusoidal rectifier; uniform duty factor; unity power factor;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19951868

Filename

414948