星上转动部件对卫星姿态的影响分析及补偿控制  

Analysis on Disturbance of Mobile Bodies and Compensation Control of Satellite Attitude

作　　者：刘军[1] 韩潮[1] 张伟 

机构地区：[1]北京航空航天大学宇航学院,北京100083 [2]上海航天控制工程研究所,上海200233

出　　处：《上海航天》2006年第6期22-26,64,共6页Aerospace Shanghai

摘　　要：研究了考虑有效载荷运动部件干扰时三轴稳定卫星的姿态控制。由卫星有效载荷转动部件运动规律建立了转动部件和挠性太阳帆板的动力学模型,根据干扰力矩的特点,提出了一种通过设定角动量交换系统标称值条件对卫星进行控制,以及抑制变速转动部件引起卫星本体姿态扰动的前馈控制的方案。仿真结果表明,该控制方案可有效消除星内外干扰力矩对姿态控制精度的影响,卫星的指向精度优于0.2°。The attitude control of 3-axis stabilization satellite was studied under the disturbance due to the movement of payload in this paper. The dynamic models of the mobile body and flexible solar sail were established according to the moving rule of the mobile bodies for the payload. A control method which adopted the attitude control by setting normalized value of angular momentum exchange and feed forward controller to suppress the satellite attitude disturbance caused by variable motion of the mobile bodies was put forward. The simulation results showed that this method would eliminate the effects of disturbance induced by disturbance torque onboard on the attitude control precision. The direction accuracy was better than 0.2°.

关 键 词：三轴稳定卫星 有效载荷 转动部件 姿态控制 标称值 前馈控制 控制精度 

分 类 号：V448.22[航空宇航科学与技术—飞行器设计]