Continuous Sliding Mode Controller with Disturbance Observer for Hypersonic Vehicles

被引:16
|
作者
Chaoxu Mu [1 ]
Qun Zong [1 ]
Bailing Tian [1 ]
Wei Xu [2 ]
机构
[1] the Department of Electrical Engineering and Automation, Tianjin University
[2] the School of Electrical and Electronic Engineering,Huazhong University of Science and Technology
基金
中国国家自然科学基金;
关键词
Sliding mode control; finite time disturbance observer; chattering suppression; robustness; hypersonic vehicles;
D O I
暂无
中图分类号
V249.1 [飞行控制];
学科分类号
摘要
In this paper, a continuous sliding mode controller with disturbance observer is proposed for the tracking control of hypersonic vehicles to suppress the chattering. The finite time disturbance observer is involved to make that the continuous sliding mode controller has the property of disturbance rejection.Due to continuous terms replacing the discontinuous term of traditional sliding mode control, switching modes of velocity and altitude firstly arrive at small regions with respect to disturbance observation errors. Switching modes keep zero and velocity and altitude asymptotically converge to their reference commands after disturbance observation errors disappear. Simulation results have proved the proposed method can guarantee the tracking of velocity and altitude with continuous sliding mode control laws,and also has the fast convergence rate and robustness.
引用
收藏
页码:45 / 55
页数:11
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