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Research Article



An Integrated Boost-Sepic Higher Static Gain DC-DC Converter for Photovoltaic (PV) Based Micro-Grid Application

H. Isah, Y. M. Sagagi and Y. Aliyu.



Abstract
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A new circuit topology is designed for a DC-DC converter. The proposed converter employ a single power switch which integrates a conventional boost with SEPIC converter for photovoltaic (PV). A prototype is developed and implemented for 105 V DC output from 9 V DC input. The performance of the proposed topology was validated using theoretical and practical verification. The results indicate higher voltage gain of 11.67, low duty-cycle of 0.82 and reduced voltage stress across the components of about 54 V. The circuit can be used for PV and other renewable energy resources that requires DC-DC voltage step-up conversion ratio.

Key words: DC-DC STEP-UP CONVERTER, PHOTOVOLTAIC (PV) PANEL, VOLTAGE GAIN, DUTY-CYCLE and VOLTAGE STRESS

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070809101112010203040506
20252026

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