A COUPLED INDUCTOR BASED SOFT SWITCHING BIDIRECTIONAL DC-DC CONVERTER USING HYBRID ENERGY STORAGE SYSTEM

ELECTRICAL AND ELECTRONICS ENGINEERING

A Soft switching bidirectional DC-DC Converter based on the coupled inductor for battery supercapacitor hybrid energy storage system applied in electric vehicle and hybrid electric vehicles. The bidirectional DC-DC converter (BDC) is the key component to control the energy flow between the battery and the super-capacitor. To reduce the internal energy loss of the BSHESS, the efficient BDC with soft-switching characteristics is the best choice. The renewable energy sources as solar panel can be used as the input sources. This BDC has a simple structure without any auxiliary switch and can provide soft-switching conditions for both switches without additional control signals. In order to prove the feasibility of the proposed BDC, experimental results, which are obtained from an experimental prototype, are presented. Experimental results show that soft-switching conditions of both switches of the proposed BDC are achieved.

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