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Terminal Sliding Mode Control with Unidirectional Auxiliary Surfaces for Hypersonic Vehicles Based on Adaptive Disturbance Observer

机译:基于自适应扰动观测器的超音速飞行器单向辅助表面终端滑模控制

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摘要

A novel flight control scheme is proposed using the terminal sliding mode technique, unidirectional auxiliary surfaces and the disturbance observer model. These proposed dynamic attitude control systems can improve control performance of hypersonic vehicles despite uncertainties and external disturbances. The terminal attractor is employed to improve the convergence rate associated with the critical damping characteristics problem noted in short-period motions of hypersonic vehicles. The proposed robust attitude control scheme uses a dynamic terminal sliding mode with unidirectional auxiliary surfaces. The nonlinear disturbance observer is designed to estimate system uncertainties and external disturbances. The output of the disturbance observer aids the robust adaptive control scheme and improves robust attitude control performance. Finally, simulation results are presented to illustrate the effectiveness of the proposed terminal sliding mode with unidirectional auxiliary surfaces.
机译:利用终端滑模技术,单向辅助表面和扰动观测器模型,提出了一种新颖的飞行控制方案。尽管存在不确定性和外部干扰,但是这些提出的动态姿态控制系统可以改善高超声速车辆的控制性能。终端吸引子用于提高与高超声速飞行器短周期运动中注意到的临界阻尼特性问题相关的收敛速度。所提出的鲁棒姿态控制方案使用具有单向辅助表面的动态终端滑模。非线性干扰观测器旨在估计系统不确定性和外部干扰。干扰观测器的输出有助于鲁棒的自适应控制方案并提高鲁棒的姿态控制性能。最后,仿真结果表明了所提出的具有单向辅助表面的终端滑模的有效性。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第16期|285716.1-285716.11|共11页
  • 作者单位

    Jiangsu Univ Technol, Sch Elect & Informat Engn, Changzhou 213001, Peoples R China.;

    Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nanjing 210016, Peoples R China.;

    Nanjing Univ Aeronaut & Astronaut, Coll Automat Engn, Nanjing 210016, Peoples R China.;

    Jiangsu Univ Technol, Sch Comp Engn, Changzhou 213001, Peoples R China.;

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