Adaptive fault-tolerant control of heterogeneous MASs based on dynamic event-triggered communication

This paper describes a solution to the problem of fault-tolerant control (FTC) problem for leader-following heterogeneous linear multi-agent systems (MASs) subject to loss of effectiveness and time-varying additive actuator faults. The main goal of the proposed FTC approach is to maintain the behavi...

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Bibliographic Details
Published inInternational journal of control Vol. 96; no. 11; pp. 2871 - 2884
Main Authors Pham, Thiem V., Nguyen, Quynh T. T., Messai, Nadhir
Format Journal Article
LanguageEnglish
Published Abingdon Taylor & Francis 02.11.2023
Taylor & Francis Ltd
Subjects
actuator faults
Actuators
Adaptive control
Automatic Control Engineering
Communication
Computer Science
Event-triggered control
fault estimation
Fault tolerance
fault-tolerant control
Faults
heterogeneous MASs
Linear systems
Multiagent systems
System effectiveness
Tracking
Zeno's behaviour
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Summary:This paper describes a solution to the problem of fault-tolerant control (FTC) problem for leader-following heterogeneous linear multi-agent systems (MASs) subject to loss of effectiveness and time-varying additive actuator faults. The main goal of the proposed FTC approach is to maintain the behaviour of the heterogeneous MASs in spite of actuator faults and to save on bandwidth required for the MASs communication by using a dynamic event-triggered communication mechanism. Firstly, a fault estimation observer, which deals with linear systems with matched disturbances, is constructed to estimate simultaneously the actuator faults and the followers' states. Then, an FTC with dynamic event-triggered communication is proposed. The latter is based on a dynamic internal reference for each agent and exploits the estimated faults. Thus, it is at first shown that the FTC problem can be indirectly solved through the consensus tracking of the defined internal references. Then, a sufficient condition of consensus tracking for the internal references with a dynamic event-triggered communication is proposed. Finally, a sufficient and necessary condition is derived for the FTC of linear heterogeneous multi-agent systems. The effectiveness of the proposed approach is illustrated with a numerical simulation.
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ISSN:0020-7179
1366-5820
DOI:10.1080/00207179.2022.2117085