The invention discloses an adaptive robust sliding mode attitude control method for a disk satellite, and belongs to the technical field of disk satellite attitude control. The invention aims to solve the problems that the uncertainty of rotational inertia and environmental moment interference are not considered, the control precision is low and the like when an existing sliding mode variable structure control method is used for disk satellite attitude control. Comprising the steps that mass blocks are arranged on a rolling shaft and a pitch shaft; establishing an attitude dynamical model of the disk satellite, and performing expansion to obtain a disk satellite expansion dynamical equation corresponding to the electric propulsive force eccentric torque and the aerodynamic torque; defining an adaptive robust sliding mode function based on the current attitude and the expected attitude of the disk satellite, and designing a Lyapunov function based on the adaptive robust sliding mode function; and combining an adaptive robust sliding mode control law to obtain attitude control laws of the rolling axis and the pitch axis, calculating to obtain displacements of the mass block on the x axis and the y axis of the body coordinate system, and performing attitude control in combination with the adaptive laws of the rolling axis and the pitch axis. The method is used for attitude control of the disk satellite.

    一种磁盘卫星的自适应鲁棒滑模姿态控制方法,属于磁盘卫星姿态控制技术领域。本发明针对现有滑模变结构控制方法用于磁盘卫星姿态控制,解决没有考虑转动惯量不确定性以及环境力矩干扰,控制精度低等问题。包括在滚转轴和俯仰轴上设置质量块;建立磁盘卫星的姿态动力学模型,并展开得到对应电推进力偏心力矩和气动力矩的磁盘卫星展开动力学方程;基于磁盘卫星的当前姿态与期望姿态定义自适应鲁棒滑模函数,再基于自适应鲁棒滑模函数设计Lyapunov函数;再结合自适应鲁棒滑模控制律,得到滚转轴和俯仰轴的姿态控制律,并计算得到质量块在本体坐标系x轴和y轴的位移,同时结合滚转轴和俯仰轴的自适应律进行姿态控制。本发明用于磁盘卫星的姿态控制。


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    Titel :

    Adaptive robust sliding mode attitude control method for disk satellite


    Weitere Titelangaben:

    磁盘卫星的自适应鲁棒滑模姿态控制方法


    Beteiligte:
    DAI YU (Autor:in) / WU FAN (Autor:in) / YANG BOYU (Autor:in) / LIU CHUHONG (Autor:in) / YOU HAORAN (Autor:in) / REN YIWEN (Autor:in) / GUO JINSHENG (Autor:in) / CHEN XUEQIN (Autor:in)

    Erscheinungsdatum :

    2023-10-10


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B64G Raumfahrt , COSMONAUTICS / G05D SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES , Systeme zum Steuern oder Regeln nichtelektrischer veränderlicher Größen



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