The dynamic power sharing method for hydrogen-battery-supercapacitor hybrid energy storage system in DC microgrid

Abstract Recently, the electric-hydrogen hybrid system has gained widespread adoption as a means of enhancing the efficiency of photovoltaic power dissipation. However, optimizing power allocation among various energy storage systems presents a significant challenge. In this paper, we will propose an adaptive droop control strategy for Electric-Hydrogen Hybrid Energy Storage System (EHESS) within DC microgrids. This strategy takes into account the state of charge (SOC) of the battery and the state of hydrogen (SOH) within the hydrogen storage tank. Through simulation analysis, we will evaluate the efficacy of the method and demonstrate its effectiveness in facilitating collaborative power allocation within EHESS.