An improved rule-based energy management strategy for hybrid energy system with hydrogen cycle

In order to solve the problem of cooperation and stable operation of the multi-source hybrid energy system with renewable energy, an improved rule-based energy management strategy considering the whole state of the system is proposed in this paper. According to the states and constraints of fuel cell, electrolyzer, and battery, 13 operation modes of the system are specially designed. Then the simulation is carried out in Matlab/Simulink. The simulation results of the system under long-term and short-term working conditions are presented, which verify the effectiveness of the proposed strategy in improving the system energy utilization and ensuring the stable operation of the system.