Integral terminal sliding mode control for nonlinear systems

被引:0
|
作者
GUO Jianguo [1 ]
LIU Yuchao [1 ]
ZHOU Jun [1 ]
机构
[1] Institute of Precision Guidance and Control, Northwestern Polytechnical University
基金
中国国家自然科学基金;
关键词
terminal sliding mode(TSM); finite-time convergence; mismatched disturbance; Lyapunov stability; nonlinear systems;
D O I
暂无
中图分类号
TP273 [自动控制、自动控制系统];
学科分类号
080201 ; 0835 ;
摘要
This paper proposes a fast integral terminal sliding mode(ITSM) control method for a cascaded nonlinear dynamical system with mismatched uncertainties. Firstly, an integral terminal sliding mode surface is presented, which not only avoids the singularity in the traditional terminal sliding mode, but also addresses the mismatched problems in the nonlinear control system. Secondly, a new ITSM controller with finite convergence time based on the backstepping technique is derived for a cascaded nonlinear dynamical system with mismatched uncertainties. Thirdly, the convergence time of ITSM is analyzed, whose convergence speed is faster than those of two nonsingular terminal sliding modes.Finally, simulation results are presented in order to evaluate the effectiveness of ITSM control strategies for mismatched uncertainties.
引用
收藏
页码:571 / 579
页数:9
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