Multi-Phase QR ZCS Switched-Capacitor Bidirectional Power Converter for PV System Application  

作　　者：Yi-Pin Ko Yuang-Shung Lee Li-Jen Liu 

机构地区：[1]Department of Electrical Engineering, Fu Jen Catholic University, New Taipei City 24205, Taiwan

出　　处：《Journal of Energy and Power Engineering》2012年第11期1869-1877,共9页能源与动力工程（美国大卫英文）

摘　　要：The multi-phase implementation in the QR （quasi resonant） ZCS （zero current switching） SC （switched capacitor） bidirectional DC-DC converter structure has been proposed to reduce current ripple, switching loss and significantly increase the converter efficiency and power density. This approach provides a more precise output voltage to obtain voltage conversion ratios from the double-mode versus half-mode to n-mode versus 1/n mode. This is accomplished by adding a different number of switched-capacitors and power MOSFET switches with a small series connected resonant inductor for forward and reverse schemes. The size and cost can be reduced when the proposed converter has been designed with the coupled inductors. The simulation and experimental results have been used to demonstrate the performance of the two-phase with and without coupled inductor interleaved QR ZCS SC converters for bidirectional power flow control application, and an extending structure for N-phase is mentioned.

关 键 词：Quasi resonant zero current switching multiphase DC-DC converter switched capacitor bidirectional converter PVsystem. 

分 类 号：TN4[电子电信—微电子学与固体电子学] TM42[电气工程—电器]