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| 基于迭代学习观测器的卫星姿态控制系统的鲁棒容错控制 | |
| 引用本文： | 管宇,张迎春,沈毅,贾庆贤.基于迭代学习观测器的卫星姿态控制系统的鲁棒容错控制[J].宇航学报,2012,33(8):1080-1086. |
| 作者姓名： | 管宇 张迎春 沈毅 贾庆贤 |
| 作者单位： | 1. 哈尔滨工业大学卫星技术研究所,哈尔滨,150001 2. 哈尔滨工业大学卫星技术研究所,哈尔滨150001;深圳航天东方红海特卫星有限公司,深圳518057 3. 哈尔滨工业大学航天学院,哈尔滨,150001 |
| 基金项目： | 国家自然科学基金(60874054) |
| 摘 要： | 针对卫星在轨运行时存在执行机构故障和空间干扰问题,提出了一种将迭代学习与未知输入观测器(IL-UIO)相结合的鲁棒容错控制方法.该方法在继承了未知输入观测器干扰解耦优点的同时,运用迭代学习技术,利用前一时刻姿态角速度偏差和IL-UIO输入来更新当前故障信息,实现了执行机构的在线故障重构.进一步基于Lyapunov方法从理论上证明了设计的IL-UIO鲁棒稳定性和姿态角速度偏差一致有界性.最后,建立卫星闭环姿态控制系统对方法进行验证,仿真结果验证了方法的有效性. |
| 关 键 词： | 迭代学习 未知输入观测器 故障重构 鲁棒容错控制 卫星姿控系统 |
Robust Fault-Tolerant Control for Satellite Attitude Control System Based on Iterative Learning Observer |
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| GUAN Yu , ZHANG Ying-chun , SHEN Yi , JIA Qing-xian.Robust Fault-Tolerant Control for Satellite Attitude Control System Based on Iterative Learning Observer[J].Journal of Astronautics,2012,33(8):1080-1086. | |
| Authors: | GUAN Yu ZHANG Ying-chun SHEN Yi JIA Qing-xian |
| Institution: | 1(1.Research Center of Satellite Technology,Harbin Institute of Technology,Harbin 150001,China; 2.Shenzhen Aerospace Dongfanghong HIT Satellite Company Ltd,Shenzhen 518057,China; 3.School of Astronautics,Harbin Institute of Technology,Harbin 150001,China) |
| Abstract: | Based on Iterative learning-unknown input observer(IL-UIO),a robust fault-tolerant control scheme is putford to deal with actuator failures and external disturbances of on-orbit satellite.It decouples disturbances with UIO,meanwhile the IL technique are used to update current fault signal by means of immediate past system output errors and the last step IL-UIO information,thus reconstructing actuator fault on-line.Furthermore,the robust stability of the full-order IL-UIO and uniformly boundness of angular velocity errors are proved by using the Lyapunov stability theory.Simulation results of the closed-loop satellite attitude control system used in a satellite attitude control system validate the effectiveness of the proposed method. |
| Keywords: | Iterative learning Unknown input observer Fault reconstruction Robust fault-tolerant control Satellite attitude control system |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |