Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title A Bidirectional Three-phase Push-pull Zero-Voltage Switching DC-DC Converter
Authors Min-Ho Kwon ; Kook-In Han ; Jung-Sung Park ; Se-Wan Choi
DOI 10.6113/TKPE/2013.18.4.403
Page pp.403-411
ISSN 1229-2214
Keywords ZVS; soft-switching; bi-directional dc-dc converter; three-phase transformer; push-pull; current-fed
Abstract This paper proposes an isolated bidirectional three-phase push-pull dc-dc converter for high power application such as eco-friendly vehicles, renewable energy systems, energy storage systems, and solid-state transformers. The proposed converter achieves ZVS turn-on of all switches and volume of passive components is small by an effect of three-phase interleaving. The proposed converter has identical switching pattern for both boost and buck mode, and therefore can provide seamless characteristic at the mode transition. A 3kW prototype of the proposed converter has been built and tested to verify the validity of the proposed operation.