Volume 33, Issue 9 pp. 1407-1424
RESEARCH ARTICLE

Finite-time prescribed performance adaptive fuzzy fault-tolerant control for nonstrict-feedback nonlinear systems

Hang Su

Hang Su

College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China

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Weihai Zhang

Corresponding Author

Weihai Zhang

College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China

Weihai Zhang, College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao 266590, China.

Email: [email protected]

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First published: 17 July 2019
Citations: 17

Summary

This paper focuses on a finite-time adaptive fuzzy control problem for nonstrict-feedback nonlinear systems with actuator faults and prescribed performance. Compared with existing results, the finite-time prescribed performance adaptive fuzzy output feedback control is under study for the first time. By designing performance function, the transient performance of the corresponding controlled variable is maintained in a prescribed area. Combining the finite-time stability criterion with backstepping technique, a feasible adaptive fault-tolerant control scheme is proposed to guarantee that the system output converges to a small neighborhood of the origin in finite time, and the closed-loop signals are bounded. Finally, simulation results are shown to illustrate the effectiveness of the presented control method.

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