Three-Phase AC-DC Converters with Input Power Factor Correction for Telecom Rectifiers
Conference: Intelec 2013 - 35th International Telecommunications Energy Conference, SMART POWER AND EFFICIENCY
10/13/2013 - 10/17/2013 at Hamburg, Deutschland
Proceedings: Intelec 2013
Pages: 6Language: englishTyp: PDF
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Authors:
Wijeratne, Dunisha; Moschopoulos, Gerry (Western University, London, ON, Canada)
Abstract:
Rectifiers for telecom applications need to produce a - 48 Vdc output from an AC source. Such rectifiers are typically implemented with two-stage converters that consist of a three-phase, six-switch AC-DC front-end converter and a fourswitch DC-DC converter. Researchers have tried to reduce the cost and complexity of standard two-stage converters by using various approaches. In this paper, several of these approaches are reviewed and a new three-phase AC-DC frontend converter is proposed. Experimental results that confirmed the feasibility of this converter are presented in the paper.