The embodiment of the invention discloses a low-orbit satellite attitude magnetic control method and system combined with pneumatic attitude control. The method comprises the following steps: carrying out aerodynamic moment attitude control and magnetic control moment attitude control on a satellite; the aerodynamic moment attitude control comprises the steps of establishing an aerodynamic parameter model of the satellite, obtaining aerodynamic force and aerodynamic moment borne by the satellite according to the aerodynamic parameter model, carrying out aerodynamic configuration design, deploying a geometrical relationship between a pressure center envelope and a mass center, and realizing directional control of the flight direction of the satellite by calculating the size and the direction of the aerodynamic moment; the magnetic control moment attitude control comprises the steps of performing time-sharing magnetic measurement on a local magnetic field vector and measuring an attitude angular velocity of a satellite in a body coordinate system, and obtaining an orbit surface single-axis attitude deviation through attitude extrapolation and an initial attitude; according to the deviation and the attitude angular velocity, magnetic moment calculation distribution is carried out after attitude angle correction is completed through proportional differential control and switch control, magnetic control moment is output through time-sharing magnetic control, and normal directional control over the satellite orbital plane is achieved.

    本发明实施例公开一种结合气动姿控的低轨卫星姿态磁控方法及系统。该方法包括对卫星进行气动力矩姿态控制和磁控力矩姿态控制;气动力矩姿态控制包括建立卫星的气动参数模型,并根据气动参数模型得到卫星所受的气动力和气动力矩,及进行气动构型设计和调配压心包络与质心的几何关系,并通过计算气动力矩的大小和方向,实现卫星飞行方向的定向控制;磁控力矩姿态控制包括分时磁测当地的磁场矢量和测量卫星在本体坐标系中的姿态角速度,并通过姿态外推和初始姿态得到轨道面单轴姿态偏差,及根据偏差和姿态角速度通过比例微分控制和开关控制完成姿态角修正后进行磁矩计算分配,通过分时磁控输出磁控力矩,实现卫星轨道面法向的定向控制。


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    Title :

    Low earth orbit satellite attitude magnetic control method and system combined with pneumatic attitude control


    Additional title:

    一种结合气动姿控的低轨卫星姿态磁控方法及系统


    Contributors:
    ZHAI JUNYI (author) / XIN XING (author) / HUANG LIYA (author) / CHENG CHUNXIAO (author) / ZHANG JIAMING (author)

    Publication date :

    2023-12-01


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B64G Raumfahrt , COSMONAUTICS / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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