Abstract
Significantly, the performance of a grid-independent hybrid electric vehicle (GIHEV) is decided by a multi-input converter in it. This paper discusses the detailed mathematical modeling, design, prototype validation, and analysis of a multi-input DC-DC converter (MIC). This converter actively accommodates fuel cell and solar photovoltaic (PV) panel as sources and utilizes the concept of multiple switching frequencies to get wide regulation of output voltage and power flow. The average large-signal modeling, small-signal modeling, and steady-state modeling are demonstrated to achieve accurate design and analysis. The reliability analysis of the proposed converter along with the respective mathematical background is discussed. The proposed system design is validated with the help of an experimental setup and tested effectively. The proposed converter promises higher gain and 95.58% efficiency with fewer switches, low voltage stress, and fewer circuit components.
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