Decentralized adaptive FTC of interconnected nonlinear systems with actuator faults and output constraints
Decentralized adaptive FTC of interconnected nonlinear systems with actuator faults and output constraints
This paper investigates the decentralized adaptive fault-tolerant control (FTC) problem of a class of interconnected nonlinear systems in the presence of actuator faults and output constraints. To compensate the effects of unknown nonlinear interactions among subsystems, a tanh-type auxiliary function and the corresponding parameter updating law are proposed. The actuator faults are allowed to be unknown and time-varying, and an adaptive mechanism is designed to estimate the unknown bounds of faults. Meanwhile, the output transformation technique is introduced which transforms the constrained output into an unconstrained one. Stability analysis shows that the proposed scheme can ensure the boundedness of all the closed-loop system signals and the output constraints are not violated. Finally, simulation results are presented to demonstrate the effectiveness of the proposed FTC strategy.
Actuator Faults, Adaptive Control, Decentralized Control, Interconnected Systems, Output Constraints
1497-1502
Fang, Xinpeng
135f800e-5011-4e4f-a483-f0d935ed85a4
Fan, Huijin
c2d58f76-05ea-416d-a5e9-ad971930d613
Liu, Lei
51ddf4cf-b2db-43ad-8e3b-46f0e110f3b2
Wang, Bo
c7e48a2e-8790-4e1f-9740-5b50dd713030
Hu, Wenqiang
442552d4-f18a-412f-ad82-3a2d8fc3934f
15 August 2022
Fang, Xinpeng
135f800e-5011-4e4f-a483-f0d935ed85a4
Fan, Huijin
c2d58f76-05ea-416d-a5e9-ad971930d613
Liu, Lei
51ddf4cf-b2db-43ad-8e3b-46f0e110f3b2
Wang, Bo
c7e48a2e-8790-4e1f-9740-5b50dd713030
Hu, Wenqiang
442552d4-f18a-412f-ad82-3a2d8fc3934f
Fang, Xinpeng, Fan, Huijin, Liu, Lei, Wang, Bo and Hu, Wenqiang
(2022)
Decentralized adaptive FTC of interconnected nonlinear systems with actuator faults and output constraints.
In Proceedings of the 34th Chinese Control and Decision Conference, CCDC 2022.
IEEE.
.
(doi:10.1109/CCDC55256.2022.10033610).
Record type:
Conference or Workshop Item
(Paper)
Abstract
This paper investigates the decentralized adaptive fault-tolerant control (FTC) problem of a class of interconnected nonlinear systems in the presence of actuator faults and output constraints. To compensate the effects of unknown nonlinear interactions among subsystems, a tanh-type auxiliary function and the corresponding parameter updating law are proposed. The actuator faults are allowed to be unknown and time-varying, and an adaptive mechanism is designed to estimate the unknown bounds of faults. Meanwhile, the output transformation technique is introduced which transforms the constrained output into an unconstrained one. Stability analysis shows that the proposed scheme can ensure the boundedness of all the closed-loop system signals and the output constraints are not violated. Finally, simulation results are presented to demonstrate the effectiveness of the proposed FTC strategy.
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Published date: 15 August 2022
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© 2022 IEEE.
Venue - Dates:
34th Chinese Control and Decision Conference, CCDC 2022, , Hefei, China, 2022-08-15 - 2022-08-17
Keywords:
Actuator Faults, Adaptive Control, Decentralized Control, Interconnected Systems, Output Constraints
Identifiers
Local EPrints ID: 495503
URI: http://eprints.soton.ac.uk/id/eprint/495503
PURE UUID: 6fd46b69-fae4-4111-944a-86133a78242f
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Date deposited: 14 Nov 2024 18:10
Last modified: 15 Nov 2024 03:13
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Contributors
Author:
Xinpeng Fang
Author:
Huijin Fan
Author:
Lei Liu
Author:
Bo Wang
Author:
Wenqiang Hu
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