Three-phase 7 kW fan cooled telecom rectifier with active power factor correction

Author

pietkiewicz, A. ; Tollik, D.

Author_Institution

ASCOM Energy Systems, Berne, Switzerland

Volume

1

fYear

1993

fDate

27-30 Sep 1993

Firstpage

407

Abstract

The goal of this paper is to present a new three-phase 7 kW rectifier module, which has been recently developed for the telecommunications market. Due to forced-air cooling and active power factor correction, extremely high power density (≈320 W/l) and low weight (≈20 kg) were achieved. Implementation of the most modern zero-voltage and zero-current switching techniques combined with application of state-of-the-art power switches resulted in very high efficiency (≈0.94). This together with high power factor (≈0.96) ensures optimal operation and low running costs of the rectifier

Keywords

AC-DC power convertors; cooling; power factor correction; power semiconductor switches; rectifiers; rectifying circuits; switching circuits; telecommunication power supplies; 20 kg; 7 kW; 94 percent; ZCS; ZVS; active power factor correction; development; forced-air cooling; optimal operation; power density; power switches; running costs; state-of-the-art; telecommunications; three-phase rectifier; zero-current switching; zero-voltage switching; Cooling; Power factor correction; Power generation; Power supplies; Power system reliability; Reactive power; Rectifiers; Telecommunications; Temperature; Ventilation;

fLanguage

English

Publisher

ieee

Conference_Titel

Telecommunications Energy Conference, INTELEC '93. 15th International

Conference_Location

Paris

Print_ISBN

0-7803-1842-0

Type

conf

DOI

10.1109/INTLEC.1993.388491

Filename

388491