Distributed Fault-Tolerant Control of High-Order Input-Output Multi-Agent Systems
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In this paper, a distributed adaptive fault-tolerant control (FTC) scheme for a class of nonlinear uncertain input-output multi-agent systems is developed. A decentralized local nonlinear observer is employed for estimating the state variables of each agent, and a distributed local FTC component is designed for each agent in the distributed system by utilizing local output measurements and state estimation information exchanged between neighboring agents. The time-varying leader’s command is only communicated to a small portion of follower agents through directed links, and each follower agent exchanges measurement information only with its neighbors through a bidirectional but asymmetric topology. Under certain assumptions, the closed-loop stability and leader-follower consensus properties of the distributed system are rigorously established.