Second-order Terminal Sliding Mode Control for Near-space Vehicles Based on Disturbance Observer

被引:0
|
作者
Xu, Hui [1 ]
Wang, Cui [1 ]
Zhang, Qiang [1 ]
机构
[1] Univ Jinan, Sch Elect Engn, Jinan 250000, Shandong, Peoples R China
基金
中国国家自然科学基金;
关键词
Near space vehicle; second-order terminal sliding mode control; double-power reaching law; nonlinear disturbance observer;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
For a class of affine nonlinear near space vehicle system, a second-order terminal sliding mode control with double-power reaching law is designed to make the attitude angle tracking command signal. Double-power reaching law is selected to ensure that the tracking error can move to the sliding mode surface for a finite time and keeps moving along the sliding mode surface until the tracking error converges to zero. Nonlinear disturbance observer is proposed to estimate the external disturbances and the parameter uncertainty. Lyapunov theory proves the validity of this method. Finally, simulation results show the feasibility of the control scheme.
引用
收藏
页码:605 / 610
页数:6
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