Chattering-free discrete time integral sliding-mode control for systems with unmatched uncertainties

被引：0
|
作者：
Dong, Wen-Han [1 ]
Ma, Zhen-Qiang [1 ]
Xie, Wu-Jie [1 ]
Ma, Jun [1 ]
机构：
[1] Aeronautics and Astronautics Engineering Institute, Air Force Engineering University, Xi'an,710038, China
来源：
Kongzhi yu Juece/Control and Decision | 2015年 / 30卷 / 12期
关键词：
Boundary layer flow - Linear systems - Boundary layers - Linear matrix inequalities - Discrete time control systems - Sliding mode control - Robustness (control systems);
D O I：
10.13195/j.kzyjc.2014.1549
中图分类号：
学科分类号：
摘要：
A chattering-free integral sliding-mode control method is proposed for the discrete-time linear systems with unmatched uncertainties. Based on the linear matrix inequality (LMI) technique, a new switching function and a sliding-mode controller are proposed to minimize the effect of unmatched uncertainties, and the Lyapunov stability is proved. The saturation function is introduced to ensure that the system states move in a small neighborhood of the sliding surface as quasi-sliding motion. The boundary layer thickness of the saturation function is chosen to make sure the controller chattering-free with strong robustness. The results of theoretical analysis and simulation show the effectiveness of the proposed integral sliding-mode control scheme. © 2015, Northeast University. All right reserved.
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收藏
页码：2181 / 2186
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