Minimization of input current ripple in 2-level full-bridge converter for fuel cell power system

In this paper, dual full-bridge dc-dc converter which is controlled by interleaved method is proposed. By using interleaved control two full-bridge converters with parallel input and series output connection, both input and output current voltage ripple can be reduced. Therefore, lower input current ripple mitigates heat in battery and it prolongs the lifetime of battery. In introduction, after choosing topology and designing hardware, discuss the proposed control method with waveform and mode analysis. The theoretical analysis is verified by implementing simulation and experimental result for a 1.5-kW interleaved full-bridge converter are provided in the paper.