Intelligent Energy Management Strategy For Multi-Sources Isolated DC-Microgrid

In recent years, DC microgrids have exhibited notable advantages over traditional counterparts, particularly in standalone and agricultural applications. This paper presents a standalone DC microgrid integrating multiple energy sources, energy storage systems, and power electronic converters. Emphasizing the region's substantial solar irradiation and wind potentials, the primary focus lies on Photovoltaic (PV) and Wind Turbine (WT) systems. Additionally, a Fuel Cell (FC) serves as a secondary power source to ensure energy continuity in critical scenarios. To effectively manage this complex system, an Intelligent Energy Management System (EMS) employing Fuzzy Logic Control (FLC) has been proposed. This FLC regulates the FC system's current reference based on the power discrepancy between the generation and demand sides while considering the battery's State of Charge (SOC). Utilizing the Matlab/Simulink environment, the results demonstrate the FLC's efficiency in managing the entire system, prolonging battery lifespan, and minimizing hydrogen (H2) consumption from the FC source.