Event-trigger-based fault-tolerant control of uncertain non-affine systems with predefined performance

Journal article

Yang, Yang, Zhang, Yuwei, Wang, Zijin, Wu, Jinran and Si, Xuefeng. (2023). Event-trigger-based fault-tolerant control of uncertain non-affine systems with predefined performance. International Journal of Control, Automation and Systems. 21(2), pp. 519-535. https://doi.org/10.1007/s12555-021-1007-y
AuthorsYang, Yang, Zhang, Yuwei, Wang, Zijin, Wu, Jinran and Si, Xuefeng
Abstract

Fault-tolerant control (FTC) of a non-affine system with uncertainties is one of critical issues in nonlinear control. In this paper, in the presence of unknown actuator failures, an event-trigger-based FTC scheme is proposed for such a nonlinear system with predefined performance. For actuator failures, a compensation mechanism is designed to alleviate their impacts. By utilizing a predefined performance function, higher tracking accuracy can be obtained. Meanwhile, an event-triggered mechanism with a time-varying threshold, depending on tracking error, reduces the number of communications for a controller-to-actuator channel. An adaptive event-triggered function is then proposed with the compensation mechanism to improve the self-adjusting ability of the triggered function. Also, extended state observers and tracking differentiators are utilized to reconstruct unknown dynamics of the system and to simplify high-order derivation of virtual control laws, respectively. The stability of the closed-loop system is analyzed by input-to-state practically stability. Finally, two simulation results are supplied to verify the effectiveness of the proposed control method.

Keywordsactive disturbance rejection control; actuator failures; event-triggered control; fault-tolerant control; uncertain non-affine system
Year2023
JournalInternational Journal of Control, Automation and Systems
Journal citation21 (2), pp. 519-535
PublisherSpringer
ISSN1598-6446
Digital Object Identifier (DOI)https://doi.org/10.1007/s12555-021-1007-y
Scopus EID2-s2.0-85146982047
Page range519-535
FunderNational Natural Science Foundation of China (NSFC)
Natural Science Foundation of Jiangsu Province
Natural Science Foundation of Hebei Province
Nanjing University of Posts and Telecommunications (NUPTSF), China
Natural Science Foundation of Nanjing University of Posts and Telecommunications
Ministry of Education of China
Publisher's version
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All rights reserved
File Access Level
Controlled
Output statusPublished
Publication dates
Online30 Jan 2023
Publication process dates
Accepted22 Mar 2022
Deposited25 Jul 2023
Grant ID61873130
BK20191377
E2020203139
NY220194
NY221082
NY222144
2021FF01
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