Prasad, S.Prabhakaran, P.Arun Dominic, A.D.2026-02-062024INTELEC, International Telecommunications Energy Conference (Proceedings), 2024, Vol., , p. -2750473https://doi.org/10.1109/INTELEC60315.2024.10678980https://idr.nitk.ac.in/handle/123456789/28885This paper introduces a novel four-port DC-DC converter designed for hybrid energy integration. The proposed non-isolated circuit topology provides a symmetrical bipolar output with enhanced voltage gain. It is specifically designed to interface Solar PV and fuel cells with a Bipolar DC microgrid, enabling single-stage energy conversion. The power converter features a simplified circuit structure with fewer components compared to existing high-gain multiport converters. Furthermore, it effectively controls inductor current and balances both pole voltages using a single set of controllers. A small-signal model is deduced for each operating state to facilitate the design of the control system. Steady-state and transient results are presented to validate the efficacy of the proposed circuit topology. © 2024 IEEE.Bipolar dc microgrid (BDMG)fuel cell (FC)multi-input dc-dc convertersingle-stage energy conversionsolar photovoltaic (PV)