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A zero-voltage switched, three-phase isolated PWM buck rectifier

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3 Author(s)
V. Vlatkovic ; Corp. Res. & Dev., Gen. Electr. Co., Schenectady, NY, USA ; D. Borojevic ; F. C. Lee

A novel three-phase, single-stage, isolated PWM rectifier is proposed, which is capable of achieving unity power factor, and low harmonic distortion of input currents, and at the same time realizing zero-voltage switching for all power semiconductor devices. Operation of the proposed circuit is thoroughly analyzed. Design equations and trade-offs are provided. The performance of the proposed circuit is demonstrated through a 2 kW, 100 kHz, digital signal processor controlled prototype. The conversion efficiency is around 93%

Published in:

IEEE Transactions on Power Electronics  (Volume:10 ,  Issue: 2 )