| 执行器卡死并失效的航天器姿态稳定控制 |
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| 引用本文： | 肖冰,胡庆雷,张友民.执行器卡死并失效的航天器姿态稳定控制[J].南京航空航天大学学报,2011(Z1). |
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| 作者姓名： | 肖冰 胡庆雷 张友民 |
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| 作者单位： | 哈尔滨工业大学航天学院;康科迪亚大学机械与工业工程系; |
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| 基金项目： | 国家自然科学基金(61004072)资助项目 |
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| 摘 要： | 考虑挠性航天器执行器卡死与部分失效故障下的姿态控制问题,提出了一种滑模容错控制法。该方法采用自适应技术在线估计系统不确定参数,且该控制器的设计不需要任何在线或离线的故障信息,能够完全独立于地面站的支持。基于Lyapunov方法从理论上证明了该控制器不但能够有效地处理执行器故障,而且保证了闭环系统的全局渐近稳定,实现对姿态的高精度控制。最后将该方法应用于某型挠性航天器的姿态稳定任务中,仿真结果验证了该方法的有效性。
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| 关 键 词： | 航天器 失效故障 卡死故障 容错控制 滑模控制 |
Sliding Mode Fault Tolerant Attitude Control for Flexible Spacecraft under Actuator Fault |
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| Xiao Bing,Hu Qinglei,Zhang Youming.Sliding Mode Fault Tolerant Attitude Control for Flexible Spacecraft under Actuator Fault[J].Journal of Nanjing University of Aeronautics & Astronautics,2011(Z1). |
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| Authors: | Xiao Bing Hu Qinglei Zhang Youming |
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| Institution: | Xiao Bing1,Hu Qinglei1,Zhang Youming2(1.Department of Control Science and Engineering,Harbin Institute of Technology,Harbin,150001,China,2.Department of Mechanical and Industrial Engineering,Concordia University,Canada) |
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| Abstract: | A sliding mode fault tolerant controller is developed for flexible spacecraft attitude stabilization control in the presence of partial loss of actuator effectiveness fault and actuator stuck fault.Adaptive control is employed to estimate system uncertainties and unknown parameters.In contrast to traditional fault tolerant control methods,the proposed control law does not require any knowledge of the actuator faults and is implemented without ground station support.The Lyapunov stability analysis shows that... |
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| Keywords: | flexible spacecraft loss of actuator effectiveness actuator stuck fault tolerant sliding mode control |
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