A Fuzzy Logic Control-Based Energy Management Strategy for Fuel Cell/Battery UAV Hybrid Power System

For the fuel cell/battery UAV hybrid power system, an energy management strategy(EMS) based on fuzzy logic control(FLC) is proposed in this paper, which is optimized to reduce the system's hydrogen consumption, maintain the state of charge(SOC) of lithium battery, and stabilize the bus voltage. In order to verify the effectiveness of the EMS, a fuel cell UAV hardware experimental platform is built and a finite state machine(FSM) strategy is designed for comparison. Experimental comparison results verify the effectiveness of the proposed fuzzy logic control strategy in stabilizing the bus voltage, maintaining the SOC of the lithium battery, and improving the system fuel economy.