The invention relates to a satellite in-orbit propellant consumption optimization method, which is suitable for a satellite in a long-term operation mode, and comprises the following steps: S1, determining a satellite orbit condition, and calculating an earth shadow duration T actually experienced by the satellite; s2, determining a satellite load working condition, and analyzing and determining the maximum earth orientation duration T'meeting an energy balance requirement; s3, adjusting a shadow inlet point and a shadow outlet point based on the earth shadow duration T and the maximum earth orientation duration T '; s4, adjusting the image entering point and the image exiting point according to a preset step length n based on the performance requirement and the thermal control balance requirement of the storage battery, and repeatedly executing the step S3 to obtain the optimized image entering point and image exiting point; and step S5, completing satellite in-orbit attitude adjustment based on the optimized image entering point and image exiting point. According to the invention, the problem of propellant shortage of the satellite in various scenes such as long-year solar activity and late service life of the satellite is solved, and the attenuation of the satellite orbit can be delayed, so that the fuel consumption is reduced.

    本发明涉及一种卫星在轨推进剂消耗优化方法,适应于长期运行模式的卫星,优化方法包括以下步骤:步骤S1、确定卫星轨道条件,计算卫星实际经历的地影时长T;步骤S2、确定卫星负载工况,分析确定满足能源平衡要求的最大对地定向时长T’;步骤S3、基于地影时长T和最大对地定向时长T’调整进影点和出影点;步骤S4、基于蓄电池性能要求及热控平衡要求,按照预设步长n调整进影点和出影点,重复执行步骤S3,得到优化后的进影点和出影点;步骤S5、基于优化后的进影点和出影点,完成卫星在轨姿态调整。本发明,解决了卫星在太阳活动高年、卫星寿命晚年等多种场景下推进剂紧张的问题,能够延缓卫星轨道衰减,从而降低燃料消耗。


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    Title :

    Satellite in-orbit propellant consumption optimization method


    Additional title:

    卫星在轨推进剂消耗优化方法


    Contributors:
    LIU JIA (author) / CHANG XINYA (author) / ZHAO ZHIMING (author) / WU BIN (author) / HAO DONGQING (author) / ZHANG JIN (author)

    Publication date :

    2025-02-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS



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