Hybrid PWM rectifiers to reduce electromagnetic interference

Author

Sato, Yukihiko ; Kawamura, Kouki ; Morimoto, Hiroaki ; Nezu, Kazuyoshi

Author_Institution

Dept. of Electron. & Mech. Eng., Chiba Univ., Japan

Volume

3

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

2141

Abstract

A hybrid PWM rectifier is proposed as a method to reduce the electromagnetic interference. The hybrid PWM rectifier consists of parallel-connected two component bridge circuits, that is, main and auxiliary bridge circuits. The main bridge circuit to handle the active power has a full current rating and a low switching frequency. The auxiliary bridge circuit to improve the input current waveform has a small current rating and a high switching frequency. Because the high-frequency switching of the full current can be avoided in the hybrid rectifier, the EMI can be reduced. The effectiveness of the proposed hybrid PWM rectifier is demonstrated by some experimental results.

Keywords

PWM power convertors; bridge circuits; electromagnetic interference; rectifying circuits; switching circuits; active power; auxiliary bridge circuit; auxiliary bridge circuits; electromagnetic interference reduction; full current rating; harmonic current; high switching frequency; hybrid PWM rectifier; hybrid rectifier; input current waveform improvement; low switching frequency; multi-connected rectifier; parallel-connected two component bridge circuits; small current rating; Bridge circuits; Electromagnetic interference; Mechanical engineering; Pulse width modulation; Pulse width modulation converters; Rectifiers; Switching circuits; Switching converters; Switching frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1043827

Filename

1043827