Suppression of common-mode voltage in a PWM rectifier/inverter system

Author

Ogasawara, Satoshi ; Akagi, Hirofumi

Author_Institution

Dept. of Electr. Eng., Okayama Univ., Japan

Volume

3

fYear

2001

Firstpage

2015

Abstract

This paper proposes a PWM rectifier/inverter system capable of suppressing not only supply harmonic currents but also electromagnetic interference (EMI). An active common-noise canceler (ACC) developed for this system is characterized by sophisticated connection of a common-mode transformer which can compensate for common-mode voltages produced by both PWM rectifier and inverter. As a result, the size of the common-mode transformer can be reduced to 1/3, compared with the previously proposed ACC. A prototype PWM rectifier/inverter system (2.2 kW) has been implemented and tested. Some experimental results show reduction characteristics of the supply harmonic current and EMI.

Keywords

AC-DC power convertors; DC-AC power convertors; PWM invertors; PWM power convertors; electromagnetic interference; equivalent circuits; harmonic distortion; harmonics suppression; power conversion harmonics; power transformers; rectifying circuits; 2.2 kW; EMI; PWM rectifier/inverter system; active common-noise canceler; common-mode transformer; common-mode voltage suppression; common-mode voltages compensation; electromagnetic interference suppression; harmonic currents suppression; Capacitors; Circuits; Current supplies; Electromagnetic interference; Insulated gate bipolar transistors; Leakage current; Power transformer insulation; Pulse width modulation inverters; Rectifiers; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2001. Thirty-Sixth IAS Annual Meeting. Conference Record of the 2001 IEEE

Conference_Location

Chicago, IL, USA

ISSN

0197-2618

Print_ISBN

0-7803-7114-3

Type

conf

DOI

10.1109/IAS.2001.955904

Filename

955904