Type of Document	Master's Thesis
Author	Gatari?, Slobodan
URN	etd-12162009-020342
Title	Single-switch three-phase zero-current-transition rectifier with power factor correction
Degree	Master of Science
Department	Electrical Engineering
Advisory Committee	Advisor Name Title Borojevich, Dushan Committee Chair Baumann, William T. Committee Member Lee, Fred C. Committee Member
Keywords	Electric power factor.
Date of Defense	1994-06-26
Availability	restricted
Abstract A novel, zero-current-transition (ZCT) topology of the single-switch three-phase boost PFC rectifier is proposed. The soft transition is achieved with a low-power auxiliary circuit employing an additional switch. The circuit can be used with an IGBT at switching frequencies up to 50. Its operation is analyzed in detail, and design guidelines are provided. The small signal model of the circuit is developed, and voltage mode control is designed. The results are verified on a 4 kW, 50 kHz, experimental ZCT rectifier with an IGBT; total harmonic distortion below 9% and efficiency above 95% were obtained.
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