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Mathematical Problems in Engineering
Volume 2015, Article ID 436935, 7 pages
http://dx.doi.org/10.1155/2015/436935
Research Article

Robust Fault Diagnosis Design for Linear Multiagent Systems with Incipient Faults

1College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
2College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

Received 30 July 2014; Accepted 24 September 2014

Academic Editor: Peng Shi

Copyright © 2015 Jingping Xia et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The design of a robust fault estimation observer is studied for linear multiagent systems subject to incipient faults. By considering the fact that incipient faults are in low-frequency domain, the fault estimation of such faults is proposed for discrete-time multiagent systems based on finite-frequency technique. Moreover, using the decomposition design, an equivalent conclusion is given. Simulation results of a numerical example are presented to demonstrate the effectiveness of the proposed techniques.