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Zero-voltage-switching three-phase single-stage power factor correction convertor

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3 Author(s)
Y. Panov ; Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA ; J. G. Cho ; F. C. Lee

As an alternative to two-stage cascaded AC/DC power convertors, the paper presents a zero-voltage-switching (ZVS) single-state three phase rectifier with input/output isolation. The proposed rectifier contains five active devices driven by a simple PWM controller and operates in the discontinuous conduction mode (DCM) for the input power factor correction part and in the continuous conduction mode (CCM) for the DC/DC power conversion part. A simple circuit topology, ZVS, for all active devices and diodes and low device voltage and current stresses make the proposed power convertor attractive for low power (<10 kW) applications. Operational principles, analysis and design procedures are presented and verified by the experimental results obtained from a 5 kW prototype

Published in:

IEE Proceedings - Electric Power Applications  (Volume:144 ,  Issue: 5 )