The invention discloses an energy distribution method for a long-endurance unmanned aerial vehicle SOFC hybrid power system. The energy distribution method comprises the following specific steps that S1, the power of an aircraft in each flight stage, the maximum output power of a solid oxide fuel cell SOFC, the maximum output power of a lithium battery and the maximum allowable charging power of the lithium battery are obtained; s2, calculating to obtain an external environment model based on the high-altitude low-oxygen low-pressure environment data; s3, building an SOFC system and lithium battery system model through computer software based on thermodynamic and kinetic equations; compared with the prior art, by controlling the power output of the SOFC and the lithium battery, it is guaranteed that the aircraft can rapidly meet the load change requirement in the whole flight process; the overall fuel utilization rate is improved by feeding back and controlling the fuel flow and the charging and discharging state of the lithium battery according to the energy distribution method, and energy waste is reduced.

    本发明公开了一种长航时无人机SOFC混合动力系统能量分配方法,包括以下具体步骤:S1、获取飞机在各飞行阶段的功率、固体氧化物燃料电池SOFC最大输出功率、锂电池最大输出功率以及锂电池最大允许充电功率;S2、基于高空低氧低压的环境数据,计算得到外部环境模型;S3、基于热力学、动力学方程计通过计算机软件搭建SOFC系统与锂电池系统模型;相比现有技术,本发明通过控制SOFC和锂电池的功率输出,保证飞机在全飞行过程中能够迅速满足负载变化需求;本发明根据能量分配方法反馈控制燃料流量和锂电池充放电状态的方式来提高整体的燃料利用率,减少能源浪费。


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    Titel :

    Energy distribution method for SOFC (Solid Oxide Fuel Cell) hybrid power system of long-endurance unmanned aerial vehicle


    Weitere Titelangaben:

    长航时无人机SOFC混合动力系统能量分配方法


    Beteiligte:
    LIANG FENGLI (Autor:in) / ZHANG YEPENG (Autor:in) / MAO JUNKUI (Autor:in) / HE ZHENZONG (Autor:in)

    Erscheinungsdatum :

    22.11.2024


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64U / B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT



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