Indian Journal of Science and Technology

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This paper proposes a new boost DC-DC converter with a high voltage conversion ratio for the renewable energy source. To get a high voltage gain, the proposed converter consists of the new two stage cascaded structure and has two voltage conversion processes. Due to the new structure and voltage conversion process, it has the higher output voltage gain at the same duty cycle than the conventional boost converter. To verify the performance and effectiveness the proposed circuit was analyzed and tested by the PSIM simulator. The calculated power efficiency of the proposed circuit was 90.5% and the proposed circuit had the 3.5 times higher conversion ratio at the half duty cycle than the conventional boost converter. Therefore, the superior voltage conversion ability of the proposed circuit is proved from the simulation results.

Keywords

Boost Converter, Cascaded Structure, High Voltage Gain.
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