A High Efficiency Fuel Cell Replacedby an Llc Resonant Dc-dc Converter
نویسندگان
چکیده
In this paper, a high-efficiency fuel cell implemented by an LLC resonant dc–dc converter is proposed to save the cost and energy of fuel cell. The proposed converter has zero-voltage switching (ZVS) operation of the primary switches and zero-current switching (ZCS) operation of the rectifier diodes. By frequency modulation control, the output impedance of an LLC resonant converter can be regulated from zero to infinite without shunt or serial resistors. Proton Exchange Membrane fuel cell (PEMFC) is one of the promising technologies for the distributed power generation. For designing high efficiency fuel cell power systems, a suitable DC-DC converter is required. Among the various topologies, interleavedboost converter (IBC) is considered as a better solution for fuel cell systems, due to improved electrical performance, reduced weight and size.
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