The invention discloses an energy management method for an SOFC (Solid Oxide Fuel Cell) hybrid power system for the main power of an airplane, which can solve the problems that the SOFC starting time in the hybrid power system is too long, the variable power response speed is too slow, and the single power output power cannot meet the variable power requirements under different working conditions such as takeoff and climbing of the airplane. The hybrid power system can actively control the output power of the fuel cell-gas turbine-lithium ion battery hybrid power system (SOFC-GT-LB) according to the power requirement of an aircraft, the allowable charging power of the lithium battery and the maximum output power of the SOFC, so that the efficiency of a power device and the reliability of the system are improved; the power system can quickly respond to the change of the power demand in each flight stage of the aircraft; according to the hybrid power system, the lithium battery can be charged in the low-power requirement stage such as aircraft cruising, so that the weight of the carried lithium ion battery is reduced, and the light, efficient and reliable aviation power system is obtained.
本发明公开了一种用于飞机主动力的SOFC混合动力系统的能量管理方法,可以解决混合动力系统中SOFC启动时间过长、变功率响应速度过慢、单一动力输出功率无法达到飞机起飞和爬坡等不同工况下变功率需求的问题。该混合动力系统可根据飞机的功率需求、锂电池的允许充电功率、SOFC的最大输出功率,主动控制燃料电池‑燃气轮机‑锂离子电池混合动力系统(SOFC‑GT‑LB)的输出功率,提高了动力装置效率和系统的可靠性,也保证了动力系统能够快速响应飞机飞行各阶段功率需求的变化;该混合动力系统可以在飞机巡航等低功率需求阶段为锂电池充电,以降低携带锂离子电池的重量,得到轻质、高效和可靠的航空用动力系统。
Energy management method for SOFC (Solid Oxide Fuel Cell) hybrid power system for aircraft main power
用于飞机主动力的SOFC混合动力系统的能量管理方法
04.08.2023
Patent
Elektronische Ressource
Chinesisch
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