Original scientific paper
https://doi.org/10.1080/00051144.2023.2236855
Event-triggered adaptive robust fault-tolerant control for a class of uncertain switched nonlinear systems
Dong-Mei Li
; School of Science, University of Science and Technology Liaoning, Anshan, Liaoning, People’s Republic of China
Xi-Qin He
; Graduate School, University of Science and Technology Liaoning, Anshan, Liaoning, People’s Republic of China
Li-Bing Wu
; School of Science, University of Science and Technology Liaoning, Anshan, Liaoning, People’s Republic of China
Qing-Kun Yu
; School of Science, University of Science and Technology Liaoning, Anshan, Liaoning, People’s Republic of China
Abstract
In this paper, the adaptive robust H∞
fault-tolerant control problem for a class of switched nonlinear systems with parameter uncertainty, disturbances and actuator failures is concerned based on event-triggered control strategy. The adaptive laws based on state-dependent switched strategy are designed to eliminate the effects of actuator faults and parameter uncertainties by using the estimations of the unknown upper bounds of uncertain parameters. Then, the robust H∞
fault-tolerant technique and multiple Lyapunov functions method are used, the designed controller can guarantee that all signals of the switched closed-loop systems are uniformly bounded. Meanwhile, the desired H∞
performance of the systems is promised. Finally, the simulation results are given to illustrate the effectiveness of the proposed design method.
Keywords
Event-triggered control; adaptive robust control; fault-tolerant control; state-dependent switched strategy
Hrčak ID:
315950
URI
Publication date:
21.7.2023.
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