期刊名称:International Journal of Engineering and Computer Science
印刷版ISSN:2319-7242
出版年度:2013
卷号:2
期号:10
页码:3019-3025
出版社:IJECS
摘要:This paper presents a novel, yet simple zero-voltage switching (ZVS) interleaved boost power factor correction (PFC) ac/dcconverter used to charge the traction battery of an electric vehicle from the utility mains. The proposed opology consists of a passiveauxiliary circuit, placed between two phases of the interleaved front-end boost PFC converter, which provides enough current to chargeand discharge the MOSFETs’ output capacitors during turn-ON times. Therefore, the MOSFETs are turned ON at zero voltage. Theproposed converter maintains ZVS for the universal input voltage (85 to 265 Vrms ), which includes a very wide range of duty ratios(0.07–1). In addition, the control system optimizes the amount of reactive current required to guarantee ZVS during the line cycle fordifferent load conditions. This optimization is crucial in this application since the converter may work at very light loads for a longperiod of time. Experimental results from a 3 kW ac/dc converter are presented in the paper to evaluate the performance of theproposed converter. The results show a considerable increase in efficiency and superior performance of the proposed convertercompared to the conventional hard-switched interleaved boost PFC converter