The invention provides a multistage double-super drag-free control method and system in a gravitational wave detection displacement mode, and the method comprises the steps: performing a first-stage tracking step: controlling a magnetic levitation mechanism between a load cabin and a platform cabin through a current in a uniform magnetic field according to the relative displacement of the load cabin and a mass block in the load cabin, and enabling the magnetic levitation mechanism to generate a Lorentz force, reversely acting the Lorentz force on the load cabin to counteract the relative displacement change between the load cabin and the mass block; and performing a second-stage tracking step: when the relative displacement between the platform cabin and the load cabin exceeds a set threshold value, keeping the relative displacement between the platform cabin and the load cabin within the set threshold value by using the propulsion of a thruster on the platform cabin. Firstly, the magnetic levitation mechanism between the two cabins is used for achieving first-level tracking of the mass block by the load cabin, then the constant thruster on the platform cabin is used for achieving second-level tracking of the load cabin by the platform cabin, and multi-level drag-free control over the translational freedom degree of a satellite is achieved.

    本发明提供了一种引力波探测位移模式下的多级双超无拖曳控制方法及系统,包括:一级跟踪步骤:根据载荷舱与载荷舱内的质量块的相对位移,在匀强磁场中通过电流控制载荷舱与平台舱之间的磁浮机构,使所述磁浮机构产生洛伦兹力,将所述洛伦兹力反向作用在载荷舱上,抵消载荷舱和质量块之间的相对位移变化;二级跟踪步骤:在平台舱与载荷舱之间的相对位移超出设定阈值时,使用平台舱上的推力器的推进让平台舱与载荷舱之间的相对位移保持在设定阈值内。首先利用两舱之间的磁浮机构实现载荷舱对质量块的一级跟踪,其次利用平台舱上的常值推力器实现平台舱对载荷舱的二级跟踪,实现了对卫星平动自由度的多级无拖曳控制。


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    Titel :

    Multistage double-super drag-free control method and system in gravitational wave detection displacement mode


    Weitere Titelangaben:

    引力波探测位移模式下的多级双超无拖曳控制方法及系统


    Beteiligte:
    ZHU ZHU (Autor:in) / LIU SHENG (Autor:in) / ZHANG WEI (Autor:in) / ZHAO YANBIN (Autor:in) / ZHAO HONGBO (Autor:in) / XU YI (Autor:in) / XIE JINJIN (Autor:in) / YAO CHUANG (Autor:in)

    Erscheinungsdatum :

    2021-04-06


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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