DESIGN OF HIGH STEP UP DC-DC CONVERTER FOR FUEL CELL APPLICATIONS

Abstract — In recent years fuel cells are becoming an attractive power source in automotive applications with the converter topology. This paper gives an overview of high step up dc-dc converter,that interfaces the fuel cell with hybrid electric vehicles. This converter is proposed for high voltage gain with reduced number of switches. The DC/DC converter topology is compared with other converter topologies as conventional boost converter(BC), multi device boost converter(MDBC) and interleaved boost converter(IBC), multi device interleaved boost converter(MDIBC). This converter topology is designed by using MATLAB/simulink. Index terms- dc-dc converter, fuel cell hybrid electric vehicles (FCHEVs), coupled inductor. I