| 大型挠性结构航天器姿态精确指向控制 |
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| 作者姓名： | 操宏磊 朱庆华 孙建党 于常利 |
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| 作者单位： | 上海航天控制技术研究所；上海市空间智能控制技术重点实验室,上海航天控制技术研究所；上海市空间智能控制技术重点实验室,上海航天控制技术研究所；上海市空间智能控制技术重点实验室,上海航天控制技术研究所；上海市空间智能控制技术重点实验室 |
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| 基金项目： | 上海市青年科技英才扬帆计划（17YF1408300） |
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| 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。
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| 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 |
Precise Orientation Control of Large Flexible Spacecraft |
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| Authors: | CAO Honglei ZHU Qinghu SUN Jiandang and CHEN Minhua |
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| Institution: | Shanghai Aerospace Control Technology Institute;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai Aerospace Control Technology Institute;Shanghai Key Laboratory of Aerospace Intelligent Control Technology,Shanghai Aerospace Control Technology Institute;Shanghai Key Laboratory of Aerospace Intelligent Control Technology and Shanghai Aerospace Control Technology Institute;Shanghai Key Laboratory of Aerospace Intelligent Control Technology |
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| Abstract: | 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. |
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| Keywords: | flexible spacecraft precise orientation multi-loop control actuator vibration isolation load orientation compensate |
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