Research on Decision-making Layer Energy Management Strategy for Airborne Microgrid of MEA

In recent years, airborne HVDC power supply system has attracted much attention due to its advantages such as simple structure, easy parallel operation, effective suppression of feeder voltage drop and skin effect. However, the load characteristics of future aircraft will be more complex, requiring the on-board power network to have high power storage and pulse discharge capabilities. Therefore, the airborne hybrid power system based on generator-battery-energy storage capacitor not only retains the advantages of More-Electric Aircraft (MEA) for long endurance, but also reduces the great influence of large load pulse on the robustness of airborne power supply system, which has high engineering application value. This paper focuses on the architecture of MEA hybrid propulsion system and energy storage system, and studies the energy management strategies (EMS) of power network cooperative control layer and decision layer. The simulation results show that the designed airborne microgrid can effectively reduce the frequent fluctuations caused by load changes of generators, which provides a reference for the future research of airborne microgrid for MEA.