A New Two Input High Step-up Converter for Renewable EnergySources

In this paper a new two input step-up converter ispresented. In the proposed converter, a new technique has beenused to create soft switching conditions with the least number ofauxiliary elements. The auxiliary circuit not only provides zerovoltage switching, but also absorbs the energy of the leakageinductor and prevents voltage surge across the switches. On theother hand, the use of coupled inductors also increases thevoltage gain of the converter and greatly reduces the voltagestress on the switches. The proposed converter is simulated inPSPICE and its results confirm the circuit theory analysis.

Keywords:

two input converter , high step-up , ZVS , Auxiliary circuit.