A reduction method of harmonic currents in power systems generated by switching regulators

Author

Matsui, Keiju ; Yamamoto, Ichiro ; Tsuboi, Kazuo ; Iwata, Keiji ; Muto, Saburo ; Watanabe, Makoto ; Ueda, Pukashi

Author_Institution

Dept. of Electr. Eng., Chubu Univ., Kasugai, Japan

fYear

1993

fDate

2-8 Oct 1993

Firstpage

1552

Abstract

A forward power converter with reduced harmonics for the input supply current is proposed. In this converter, the input capacitance is reduced, so that lower-order harmonics such as the fifth and the seventh can be largely reduced by about 20% to 40%. However, the DC link voltage ripple is increased in the proposed circuit. Such characteristics have been improved by a ripple compensation circuit consisting of the feedforward circuit. One can also obtain a noticeable harmonic elimination effect for the use of parallel connection between the proposed circuits and the conventional ones

Keywords

compensation; power convertors; power system harmonics; rectifying circuits; switching circuits; DC link voltage ripple; characteristics; feedforward circuit; forward power converter; harmonic currents; input capacitance; power systems; rectifiers; ripple compensation circuit; switching regulators; Capacitance; Capacitors; Circuits; Costs; Power generation; Power supplies; Power system harmonics; Rectifiers; Regulators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Society Annual Meeting, 1993., Conference Record of the 1993 IEEE

Conference_Location

Toronto, Ont.

Print_ISBN

0-7803-1462-X

Type

conf

DOI

10.1109/IAS.1993.299238

Filename

299238