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Mathematical Problems in Engineering
Volume 2015, Article ID 785289, 7 pages
Research Article

Fault-Tolerant Control for Networked Control Systems with Limited Information in Case of Actuator Fault

School of Engineering, Huzhou University, Huzhou, Zhejiang 313000, China

Received 3 January 2015; Revised 17 February 2015; Accepted 25 February 2015

Academic Editor: Hui Zhang

Copyright © 2015 Wang Yan-feng 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.


This paper is concerned with the problem of designing a fault-tolerant controller for uncertain discrete-time networked control systems against actuator possible fault. The step difference between the running step and the time stamp of the used plant state is modeled as a finite state Markov chain of which the transition probabilities matrix information is limited. By introducing actuator fault indicator matrix, the closed-loop system model is obtained by means of state augmentation technique. The sufficient conditions on the stochastic stability of the closed-loop system are given and the fault-tolerant controller is designed by solving a linear matrix inequality. A numerical example is presented to illustrate the effectiveness of the proposed method.