大型挠性结构航天器姿态精确指向控制  

Precise Orientation Control of Large Flexible Spacecraft

作　　者：操宏磊 朱庆华 孙建党 于常利 CAO Honglei;ZHU Qinghua;SUN Jiandang;YU Changli(Shanghai Aerospace Control Technology Institute,Shanghai 201109;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai 201109)

机构地区：[1]上海航天控制技术研究所,上海201109 [2]上海市空间智能控制技术重点实验室,上海201109

出　　处：《飞控与探测》2019年第5期17-24,共8页Flight Control & Detection

基　　金：上海市青年科技英才扬帆计划资助（17YF1408300）

摘　　要：针对空间大型挠性结构航天器姿态精确指向控制中,执行机构振动和挠性结构变形对载荷指向带来的高频和低频扰动,提出了多环路复合控制策略,在传统姿态控制闭环回路的基础上,引入执行机构隔振回路和载荷指向精确控制回路,实现对执行机构振动的隔离和对载荷指向的精确补偿,并设计了回路的闭环控制方法。数学仿真和部分试验结果表明,该方法能够有效提升载荷指向精度。During precise attitude orientation control of large flexible spacecraft in space,the vibration of actuators and deformation of flexible structures would bring high and low frequency disturbance to orientation control of the load.In allusion to this problem,a multi-loop combined control strategy is promoted.Beyond the basic attitude control loop,an actuator vibration isolation loop and a load precise orientation control loop are introduced,which are used to isolate the vibration of actuators and to precisely compensate for load orientation separately.The control method of each loop is also designed.The results of simulation and some test show that this method is effective to improve load orientation accuracy.

关 键 词：挠性结构航天器 精确指向 多回路控制 执行机构隔振 载荷指向补偿 

分 类 号：TN911.73[电子电信—通信与信息系统] TP391.9[电子电信—信息与通信工程]