Title page for ETD etd-12162009-020342


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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