Journal
AUTOMATICA
Volume 103, Issue -, Pages 62-68Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.automatica.2019.01.013
Keywords
Fault-tolerant control; Actuator faults; Cooperative output regulation; Multi-agent systems; Regulator equations
Funding
- Funds of the National Natural Science Foundation of China [61621004, 61473067, 61603081, 61773056, 61420106016]
- Research Fund of State Key Laboratory of Synthetical Automation for Process Industries, PR China [2018ZCX03]
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In this paper, the cooperative output regulation problem for linear multi-agent systems with actuator faults is considered. It is assumed that the actuator faults are outage faults and loss-of-effectiveness faults. First, a distributed finite-time observer is designed to estimate the state of the exosystem. Based on the state of the finite-time observer, a distributed adaptive fault-tolerant controller is designed. Then, it is shown that the cooperative output regulation problem can be solved with the proposed fault-tolerant controller. Compared with the existing cooperative output regulation results, a novel lemma is introduced to guarantee the solvability of the regulator equations under actuator faults, and the developed controller is effective to compensate the actuator faults. Finally, a simulation example is presented to show the validity of the proposed method. (C) 2019 Elsevier Ltd. All rights reserved.
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