The invention provides a satellite jet angular momentum unloading method and system. The method comprises the steps that angular momentum needing to be unloaded of a reaction wheel set in three orthogonal coordinate axis directions of a satellite is calculated; determining an opening threshold value and a closing threshold value of jet unloading; according to the opening threshold value and the closing threshold value, the unloading requirement of the three-axis unloading angular momentum is determined; according to the unloading requirement of the three-axis unloading angular momentum, the unloading state of each axis is corrected; wherein if the three-axis angular momentum unloading requirement is to unload three-axis or one-axis angular momentum, the unloading state correction is not carried out; if the angular momentum of the two shafts needs to be unloaded, the unloading state is corrected to be unloading of the larger angular momentum of the two shafts; and obtaining an unloading jet width instruction according to the corrected unloading state of each shaft. The efficiency of unloading angular momentum by air injection can be improved, and fuel consumption is reduced; the three-axis angular momentum can be kept within a small range for a longer time, and the residual angular momentum of the reaction wheel is less after the jet unloading mode is switched out through on-orbit remote control.

    本发明提供了一种卫星喷气角动量卸载方法及系统,其中方法包括:计算卫星三个正交坐标轴方向上的反作用轮组需要卸载的角动量;确定喷气卸载的开启阈值和关闭阈值;根据开启阈值和关闭阈值,确定三轴卸载角动量的卸载需求;根据三轴卸载角动量的卸载需求,矫正各轴卸载状态;其中,如果三轴角动量卸载需求为卸载三轴或一轴角动量,则不进行卸载状态矫正;如果有两轴角动量需要卸载,则将卸载状态矫正为卸载两个轴中更大的角动量;根据矫正后的各轴卸载状态,获得卸载喷气宽度指令。本发明能够提高喷气卸载角动量的效率,减少燃料消耗;能够使三轴角动量更长时间保持在较小范围内,在轨遥控切出喷气卸载模式后反作用轮残余角动量更少。


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    Titel :

    Satellite jet angular momentum unloading method and system, terminal and medium


    Weitere Titelangaben:

    一种卫星喷气角动量卸载方法、系统、终端及介质


    Beteiligte:
    WANG JUN (Autor:in) / RONG JIANGANG (Autor:in) / WANG ZUN (Autor:in) / ZHU HAO (Autor:in) / SHAO SHUAI (Autor:in) / WANG MENG (Autor:in) / CHANG LIANG (Autor:in)

    Erscheinungsdatum :

    2023-07-28


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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