Disturbance Observer-Based Nonsingular Finite Time Control Scheme for a Class of Chaotic Systems

被引:0
|
作者
Mobayen, Saleh [1 ,2 ]
Jafari, Maryam [3 ]
Fekih, Afef [4 ]
Bayat, Farhad [3 ]
机构
[1] Univ Zanjan, Dept Elect Engn, Zanjan, Iran
[2] Natl Yunlin Univ Sci & Technol, Future Technol Res Ctr, Touliu, Taiwan
[3] Univ Zanjan, Dept Elect Engn, Fac Engn, Zanjan, Iran
[4] Univ Louisiana Lafayette, Dept Elect & Comp Engn, Lafayette, LA 70504 USA
关键词
finite time stability; non-singular terminal sliding control; disturbance observation; robust control; TRACKING CONTROL;
D O I
10.1109/iccar49639.2020.9108022
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
The current article suggests a new non-singular fast terminal sliding controller approach for a class of chaotic systems subject to exterior disturbances and time-varying nonlinear terms. The approach combines the estimation properties of disturbance observers with the robustness features of sliding mode control. The disturbance estimator is designed to ensure the convergence of disturbance approximate error to origin in the finite time, whereas the proposed stabilizing controller guarantees the existence of switching behavior around switching surface in the finite time. The performance of proposed approach was evaluated using a Wang-Chen chaotic system subject to external disturbances and time-varying nonlinearities. Achieving good dynamic behavior with reduced chattering without requiring any information about upper bound of disturbance are among the positive features of the proposed design.
引用
收藏
页码:226 / 229
页数:4
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