International Journal of Control, Automation and Systems 2021; 19(3): 1241-1251
Published online March 3, 2021
https://doi.org/10.1007/s12555-019-0946-z
© The International Journal of Control, Automation, and Systems
This paper is concerned with the problem of adaptive asymptotic tracking fault-tolerant control (FTC) for uncertain nonlinear systems with actuator faults and event-triggered inputs. Firstly, fault-tolerant controller is designed to effectively compensate the unknown actuator failures by constructing the proper parameter updated laws. Then, the event-triggered strategy based on the relative threshold method is applied to the proposed adaptive fault-tolerant controller. Furthermore, it is proved that all the closed-loop signals are uniformly bounded and the tracking error can asymptotically converge to zero. Finally, the simulation results are given to demonstrate the effectiveness of the presented control scheme.
Keywords Adaptive control, asymptotic tracking, event-triggered control, fault-tolerant control, nonlinear systems.
International Journal of Control, Automation and Systems 2021; 19(3): 1241-1251
Published online March 1, 2021 https://doi.org/10.1007/s12555-019-0946-z
Copyright © The International Journal of Control, Automation, and Systems.
Yan Yan, Libing Wu*, Nannan Zhao, and Ruiyan Zhang
University of Science and Technology Liaoning
This paper is concerned with the problem of adaptive asymptotic tracking fault-tolerant control (FTC) for uncertain nonlinear systems with actuator faults and event-triggered inputs. Firstly, fault-tolerant controller is designed to effectively compensate the unknown actuator failures by constructing the proper parameter updated laws. Then, the event-triggered strategy based on the relative threshold method is applied to the proposed adaptive fault-tolerant controller. Furthermore, it is proved that all the closed-loop signals are uniformly bounded and the tracking error can asymptotically converge to zero. Finally, the simulation results are given to demonstrate the effectiveness of the presented control scheme.
Keywords: Adaptive control, asymptotic tracking, event-triggered control, fault-tolerant control, nonlinear systems.
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