A6kw rectifier, unity power factor, three-phase, non-dissipative commutation in DC-DC converter and synchronized control in freqeuency

摘要

This paper presents how a three-phase rectifier, unity power factor, non-dissipative commutation in DC-DC converter and synchronized control in frequency, working with 89% of global efficiency and low level do RFI. The proposed structure allows the operation with high switching frequency. The output voltage is controlled by PWM with a constant frequency. The operation principle, theoretical analysis from DC converter, relevant equations, current balance control technique and experiences results, are also showed in this paper.