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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers >Robust fault-tolerant tracking control for a near-space vehicle using a sliding mode approach
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Robust fault-tolerant tracking control for a near-space vehicle using a sliding mode approach

机译：使用滑模方法的近空间飞行器鲁棒容错跟踪控制

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摘要

In this study, a flight fault-tolerant control scheme based on an adaptive sliding mode technique is proposed. First, a control allocation of a near-space vehicle (NSV) attitude dynamics is analysed, and actuator fault modelling is introduced. Then, a modified sliding model tracking control approach, using a continuous strategy of integral sliding mode control, is designed to improve the position tracking precision. This scheme can solve the chattering problem without loss of robustness and control accuracy. Actuator fault and unmeasurable external disturbances are compensated for by an integral action term. To verify the effectiveness of the proposed control scheme, a numerical simulation is performed for an NSV attitude system, which is a non-linear aircraft model with six degrees of freedom. Simulation results demonstrate that the closed-loop system has good performance in spite of the actuator fault and system disturbances.
机译：本文提出了一种基于自适应滑模技术的飞行容错控制方案。首先，分析了近空间飞行器（NSV）姿态动力学的控制分配，并介绍了执行器故障建模。然后，设计了一种改进的滑模跟踪控制方法，该方法采用了连续的整体滑模控制策略，以提高位置跟踪的精度。该方案可以解决抖动问题，而不会损失鲁棒性和控制精度。执行器故障和无法测量的外部干扰通过积分作用项进行补偿。为了验证所提出的控制方案的有效性，对NSV姿态系统进行了数值模拟，该系统是具有六个自由度的非线性飞机模型。仿真结果表明，尽管存在执行器故障和系统干扰，闭环系统仍具有良好的性能。

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  • 来源
    《Proceedings of the Institution of Mechanical Engineers》 |2011年第i8期|p.1173-1184|共12页
  • 作者

    B Jiang; Y Xu; P Shi; Z Gao;

  • 作者单位

    College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China;

    College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China;

    Department of Computing and Mathematical Sciences, University of Glamorgan, Pontypridd, UK,School of Engineering and Science, Victoria University, Melbourne, Victoria, Australia;

    College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fault-tolerant control; near-space vehicle; adaptive sliding mode control;

    机译：容错控制近空间飞行器;自适应滑模控制;

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