A 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

44

Issue

4

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

447

Lastpage

455

Abstract

This paper presents a new topology for a pulsewidth modulation (PWM) rectifier which achieves unity power factor on the AC supply side and ripple reduction on the DC output side. The main circuit of this rectifier consists of a conventional PWM rectifier and a pair of additional switches. The switches and PWM rectifier are controlled such that the ripple current on the DC line is reduced, and unity power factor is achieved on the AC line. As a result, this circuit does not require a large DC capacitor or a passive LC resonant circuit. Furthermore, control of the additional switches and PWM rectifier requires only a simple control circuit. The effectiveness of this circuit was confirmed by experiments and analysis. The rectifier is useful for uninterruptible power systems (UPSs) and DC power supplies, especially for cases in which batteries are connected to the DC line

Keywords

PWM power convertors; electric current control; power factor; rectifying circuits; switching circuits; AC supply side; DC output side; DC power supplies; DC ripple compensation; PWM rectifier; UPS; batteries; control circuit; pulsewidth modulation rectifier; ripple current reduction; ripple reduction; switches; uninterruptible power systems; unity power factor PWM rectifier; Circuit topology; Pulse width modulation; RLC circuits; Reactive power; Rectifiers; Space vector pulse width modulation; Switched capacitor circuits; Switches; Switching circuits; Uninterruptible power systems;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.605618

Filename

605618