The invention provides a multi-stack fuel cell energy management method, which comprises the following steps: acquiring a state of charge (SOC) and a required power Preq of a power cell, determining a power distribution mode of 1-n electric stacks based on the SOC and the required power Preq of the power cell, and determining a starting sequence of the electric stacks by the following method: calculating a decline percentage D = (Ve-V'e)/Ve of voltage of the electric stacks; the D values of all the electric piles are compared and sorted, and the electric piles with the small electric pile decline percentage work preferentially; and if the D values are the same, further preferably selecting the galvanic piles with the small working time length T to work. According to the invention, alternate use of a plurality of electric piles can be realized, and the consistency of the service life of each electric pile in the multi-pile fuel cell power system is maintained, so that the service life of the system is prolonged.
本发明提出一种多堆燃料电池能量管理方法,包括获取动力电池荷电状态SOC和需求功率Preq,基于动力电池荷电状态SOC和需求功率Preq确定1~n个电堆的功率分配方式,电堆的启动顺序由下述方法确定:计算电堆电压的衰退百分比为D=(Ve‑V’e)/Ve;比较各个电堆的D值并排序,电堆衰退百分比小的电堆优先工作;若D值相同,则进一步优选工作时长T小的电堆工作。本发明可以实现多个电堆的交替使用,保持多堆燃料电池动力系统中每一个电堆寿命的一致性,进而提升系统的使用寿命。
Multi-stack fuel cell energy management method
一种多堆燃料电池能量管理方法
2022-11-01
Patent
Electronic Resource
Chinese
IPC: | B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen |
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