Experimental investigation of PV based modified SEPIC converter fed hybrid electric vehicle (PV-HEV)

摘要

This paper presents a high gain modified three-port dual boost single-ended primary-inductor converter (SEPIC) converter operated hybrid photovoltaic (PV)/battery electric vehicle to improve the power transfer capability and efficiency of the power conversion stage. The proposed three-port dual boost high gain SEPIC converter accepts wide voltage range of input then the conventional single stage SEPIC converter. The three-winding high frequency coupling transformer integrates the two input sources and step-up the input voltage. The theoretical and experimental analyses are presented to validate the performance of the proposed modified SEPIC converter in boosting the wide range of input voltage. A 6 kW, 12 to 600 V of experimental model has been developed and tested. The efficiency obtained from the designed model is around 94.11%.