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Distributed Fault Accommodation for a Class of Interconnected Nonlinear Systems With Partial Communication

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2 Author(s)
Panagiotis Panagi ; KIOS Research Center for Intelligent Systems and Networks, Department of Electrical and Computer Engineering, University of Cyprus, Nicosia, Cyprus ; Marios M. Polycarpou

Motivated by applications related to large-scale and complex systems, there has recently been an increased interest in the design and analysis of distributed control and fault accommodation schemes. This note presents a distributed fault detection and accommodation design method for a class of nonlinear interconnected subsystems. A fault may occur in the subsystems local dynamics as well as in the interconnections between the subsystems. The subsystems exchange state information according to a tracking error based communication protocol, where each subsystem transmits its state information only when its tracking error exceeds a certain threshold. The robustness of the distributed fault detection scheme and the closed-loop stability properties of the fault accommodation design are established through a rigorous analysis.

Published in:

IEEE Transactions on Automatic Control  (Volume:56 ,  Issue: 12 )