Unity-power-factor PWM rectifier with DC ripple compensation

Author

Shimizu, Toshihisa ; Fujita, Tsutomu ; Kimura, Gunji ; Hirose, Jun

Author_Institution

Fac. of Technol., Tokyo Metropolitan Univ., Japan

Volume

1

fYear

1994

fDate

5-9 Sep 1994

Firstpage

657

Abstract

This paper presents a new topology of PWM rectifier which can achieve unity-power-factor on the AC supply side and ripple-reduction on the DC output side. The main circuit of this rectifier is accomplished by adding only a pair of switches to a conventional PWM rectifier. And it does not need the large DC capacitor or passive L-C resonant circuit. These additional switches and PWM rectifier are controlled not only to make a unity power factor but also to reduce the ripple current. The effectiveness of this circuit is confirmed by the experiments and analysis. This rectifier is useful for UPS and DC power supply, especially in case that the batteries are connected to the DC line

Keywords

PWM power convertors; power factor; rectifying circuits; switching circuits; AC supply side; DC capacitor; DC output side; DC ripple compensation; UPS; passive L-C resonant circuit; ripple-reduction; switches; topology; unity-power-factor PWM rectifier; Circuit topology; Power supplies; Pulse width modulation; RLC circuits; Reactive power; Rectifiers; Switched capacitor circuits; Switches; Switching circuits; Uninterruptible power systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control and Instrumentation, 1994. IECON '94., 20th International Conference on

Conference_Location

Bologna

Print_ISBN

0-7803-1328-3

Type

conf

DOI

10.1109/IECON.1994.397855

Filename

397855