The invention discloses an electric energy autonomous distribution method for a direct-drive electric propulsion power supply system of a spacecraft, and belongs to the technical field of spacecraft power supplies. In the spacecraft electric energy distribution process, the power of a solar cell array, the power of a low-voltage load and the current and voltage of a storage battery pack are collected, the SOC of the storage battery pack is predicted, reasoning is carried out by utilizing a fuzzy rule, and the working gear and the working power of the electric propulsion load are obtained through adjustment on the basis of the reference power of the electric propulsion load. And meanwhile, a model prediction control method is utilized, the state space of the storage battery pack model is discretized, an objective function and constraint conditions capable of tracking the battery current of the storage battery pack with high precision are designed, the SOC is controlled within a safe range, and the service life of the SOC is prolonged.

    一种航天器直驱电推进供电系统的电能自主分配方法,属于航天器电源技术领域。本发明在航天器电能分配的过程中,采集太阳电池阵的功率、低压负载功率、蓄电池组的电流和电压,预测蓄电池组的SOC,并利用模糊规则进行推理,在电推进负载基准功率的基础上调节得到电推进负载的工作档位和工作功率。同时利用模型预测控制方法,离散化蓄电池组模型的状态空间,设计可实现高精度跟踪蓄电池组电池电流的目标函数和约束条件,将SOC控制在安全范围内,延长其使用寿命。


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    Titel :

    Electric energy autonomous distribution method for direct-drive electric propulsion power supply system of spacecraft


    Weitere Titelangaben:

    一种航天器直驱电推进供电系统的电能自主分配方法


    Beteiligte:
    ZHU LIYING (Autor:in) / LIU ZHIGANG (Autor:in) / HE ZONGBO (Autor:in) / YANG DONG (Autor:in) / LIU QIANSHI (Autor:in) / YU LEI (Autor:in) / LEI ZHAN (Autor:in) / JIANG YUAN (Autor:in) / XING YANJUN (Autor:in) / ZHANG JIAXUN (Autor:in)

    Erscheinungsdatum :

    25.04.2025


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung



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    Barber, T.A. / Goldsmith, J.V. / Edberg, J.R. | Engineering Index Backfile | 1968


    Electric Propulsion of Spacecraft

    D. G. Fearn | NTIS | 1981