The invention provides a multi-stack integrated long-life fuel cell system, and belongs to the technical field of fuel cell engines. The multi-stack integrated long-life fuel cell system comprises a hydrogen subsystem, an air subsystem, a thermal management subsystem, an engine control module and a plurality of power output sub-modules connected in parallel and composed of stacks and DC-DC modules. The positive electrodes and the negative electrodes of the stacks are connected with the input ends of the corresponding DC-DC modules, and the output ends of the DC-DC modules are connected to a same group of lines; the hydrogen subsystem, the air subsystem and the thermal management subsystem are all connected with the stacks; the engine control module controls the N stack with the sum of the maximum output power meeting the maximum power requirement to work according to the maximum power requirement of a fuel cell automobile, other stacks are closed, and the hydrogen flow, the air flow and the cooling liquid flow entering all the stacks and the input currents of the corresponding DC-DC modules are proportionally adjusted according to the attenuation degree of all the stacks, so that different power requirements of the fuel cell automobile can be met.

    本发明提供一种多电堆集成的长寿命燃料电池系统,属于燃料电池发动机技术领域,包括氢气子系统、空气子系统、热管理子系统、发动机控制模块和多个并联的由电堆和DC‑DC模块构成的功率输出子模块;电堆的正负极与对应DC‑DC模块的输入端相连,各DC‑DC模块的输出端均连接至同一组线路;氢气子系统、空气子系统和热管理子系统均与各电堆相连;发动机控制模块根据燃料电池汽车的最大功率需求,控制最大输出功率之和满足最大功率需求的N个电堆工作,其他电堆关闭,并根据各电堆的衰减程度按比例调节进入各电堆的氢气流量、空气流量和冷却液流量,及对应DC‑DC模块的输入电流,以适应燃料电池汽车的不同功率需求。


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    Title :

    Multi-stack integrated long-life fuel cell system


    Additional title:

    一种多电堆集成的长寿命燃料电池系统


    Contributors:
    GAO YAN (author) / YIN CONG (author) / FAN HONGWEI (author) / LI KAI (author) / TANG HAO (author)

    Publication date :

    2021-12-24


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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