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Journal of Control Science and Engineering
Volume 2013 (2013), Article ID 327525, 9 pages
Research Article

Integrity Design for Networked Control Systems with Actuator Failures and Data Packet Dropouts

1College of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255049, China
2Department of Electrical and Computer Engineering, Dalhousie University, Halifax, NS, Canada B3J 2X4

Received 8 June 2013; Revised 7 October 2013; Accepted 8 October 2013

Academic Editor: Ying Wang

Copyright © 2013 Xiaomei Qi and Jason Gu. 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.


The integrity design problem of fault tolerant control for networked control system (NCS) with actuator failures and data packet dropouts is investigated. The data packet dropouts in both sensor-controller (S-C) and controller-actuator (C-A) links are described by two switches, which can be modeled as a discrete event system with known rate. After introducing the matrix of actuator failure, the closed-loop NCS is developed, which can be viewed as asynchronous dynamical systems (ADSs). Then, the sufficiency of exponential stability for the NCS is obtained based on the theory of ADSs. The output feedback controllers that can guarantee system stability are also proposed. Finally, two numerical examples are given to demonstrate the validity of our proposed approach.