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首页> 外文期刊>Journal of guidance, control, and dynamics >Fault-Tolerant Attitude Control for Spacecraft Under Loss of Actuator Effectiveness
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Fault-Tolerant Attitude Control for Spacecraft Under Loss of Actuator Effectiveness

机译：执行器有效性损失下的航天器容错姿态控制

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摘要

An adaptive backstepping control scheme was developed for the spacecraft attitude stabilization system, in which the external disturbances and partial loss of actuator effectiveness fault are considered. More specifically, a normal control law is first proposed to the normal attitude system, and then three auxiliary systems are added. Based on these manipulations, three implicit filters are proposed to estimate the actuator faults, and three new adaptive controllers are designed based on the estimation of fault to let the output of auxiliary system follow the normal control signals. Hence, fault tolerance, robustness against the actuator fault, and high accuracy of attitude stabilization can be achieved. The control designs are evaluated using numerical simulation comparisons between the developed approach and PD control scheme for the normal and faulty actuator scenarios.
机译：针对航天器姿态稳定系统，考虑了外部干扰和执行器有效性故障的部分损失，提出了一种自适应反推控制方案。更具体地，首先向法向姿态系统提出法线控制定律，然后添加三个辅助系统。基于这些操作，提出了三个隐式滤波器来估计执行器故障，并基于故障的估计来设计三个新的自适应控制器，以使辅助系统的输出遵循正常的控制信号。因此，可以实现容错，针对致动器故障的鲁棒性以及姿态稳定的高精度。对于正常和故障执行器情况，使用开发的方法与PD控制方案之间的数值模拟比较来评估控制设计。

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  • 来源
    《Journal of guidance, control, and dynamics》 |2011年第3期|p.927-932|共6页
  • 作者

    Qinglei Hu; Bing Xiao; Youmin Zhang;

  • 作者单位

    Harbin Institute of Technology, 150001 Harbin, People's Republic of China,Department of Control Science and Engineering;

    Harbin Institute of Technology, 150001 Harbin, People's Republic of China,Department of Control Science and Engineering;

    Concordia University, Montreal, Quebec H3G 2W1, Canada,Department of Mechanical and Industrial Engineer-ing;

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  • 正文语种 eng
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