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A soft switching three-phase three-switch buck rectifier

Noroozi, N ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1109/IECON.2010.5675006
  3. Abstract:
  4. In this paper a novel soft switching three-phase pulse width modulation (PWM) rectifier is proposed. Various switching state sequences of a three-phase three-switch buck-type unity power factor rectifier are reviewed and the operation modes of the converter are explained and analyzed. The converter operates under zero current switching (ZCS) condition. By using an auxiliary circuit with a simple method of energy recovery, the current is diverted away from the main power switches before they are to be turned off; so, switching losses in the converter are reduced. The auxiliary circuit consists of two auxiliary switches and a resonant inductance-capacitance circuit connected to the auxiliary switches. The proper operation of the converter is confirmed by the results obtained from the digital simulations
  5. Keywords:
  6. Auxiliary circuits ; Auxiliary switch ; Digital simulation ; Energy recovery ; Operation mode ; Power switches ; Pulse-width modulation rectifiers ; Resonant inductance ; Simple method ; State sequences ; Switching loss ; Unity power factor rectifier ; Zero-current switching ; DC-DC converters ; Electric power factor ; Industrial electronics ; Pulse width modulation ; Soft switching ; Zero voltage switching ; Electric rectifiers
  7. Source: IECON Proceedings (Industrial Electronics Conference), 7 November 2010 through 10 November 2010 ; 2010 , Pages 321-326 ; 9781424452262 (ISBN)
  8. URL: http://ieeexplore.ieee.org/document/5675006