Design and Analysis of Interleaved High-Gain Bi-Directional DC–DC Converter for Microgrid Application Integrated with Photovoltaic Systems

Abstract

Solar photovoltaic (PV) connection with the grid becomes more prevalent in distributed generation, and the DC grid contributes a significantly to the distributing system. The current study focuses on combining rooftop solar with the DC microgrid. A high-gain DC–DC converter for photovoltaic systems (HGBC-PVS) is proposed in this article to link two lower-voltage photovoltaic panels to a higher-voltage network. The designed converter with low-rating switches generates improved values of voltage gain and efficiency. To gain the most power out of solar modules, Maximum Power Point Tracking (MPPT) is used, which employs the Adaptive Incremental Conductance approach. It extracts the maximum power, thereby facilitating efficient converter operation and generating optimal outputs. The simulation outcomes in terms of voltage, inductor current, output efficiency, and voltage gain are computed, and the outcomes show the significance of the introduced topology. The efficacy of the introduced work is proved by the comparison of measured outputs with the computed outputs for various parameters.