Title :
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
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;
Conference_Titel :
Telecommunications Energy Conference, INTELEC '93. 15th International
Conference_Location :
Paris
Print_ISBN :
0-7803-1842-0
DOI :
10.1109/INTLEC.1993.388491
