Abstract—In this paper, we investigate a problem related to an estimation and decentralized control for faults for a networked control system whose configuration between subsystems is with variable structures. Taking advantage of the variable structures, the NCS could be formulated as a distributed type or a decentralized one, or as a time-varying kind switching between these two types. In the NCS, subsystems subject to network induced phenomena, such as networked induced time-varying delay, packets losses, and some faults caused by faulty actuators. To deal with these considerations, we introduce a fault dynamics and derive a set of LMI-based delay-dependent conditions for a stability analysis problem to the corresponding augmented estimation system for faults. Based on the resultant stability conditions, we also derive a set of LMI-based synthesis conditions for designing estimators and decentralized controllers to cope with faults. At the end of this paper, a numerical example is presented to show the feasibility and efficiency for the proposed method.
Index Terms—Decentralized control, faults estimation, LMI, NCS.
Ching-Min Lee is with the Department of Electrical Engineering, I-Shou University, Kaohsiung City, Taiwan (e-mail: cmlee@isu.edu.tw).
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Cite: Ching-Min Lee, "Faults Estimation and Decentralized Control for a Networked Control System with Specified Faulty Actuators," International Journal of Future Computer and Communication vol. 8, no. 4, pp. 123-128, 2019.
