Multi input Bidirectional Resonant Converter for Hybrid Energy Systems

A multi input bidirectional LCLC resonant converter for hybrid energy systems is proposed. The proposed converter consists of four voltage sources and transfers power from different combination of input sources to DC link based on the power availability with the sources. The converter charge the batteries in battery charging mode thus enabling bidirectional capabilities. All the high frequency operated switches in the converter turn on with ZVS in both the modes of operation. The converter achieves good voltage regulation for the load as well as input voltage variations using frequency modulation. Simulation results and design guidelines are outlined for the proposed converter.