Title: Stability analysis of networked control system based on quasi T-S fuzzy model

Authors: Hong Zhang; Huajing Fang; Xianping Ren; Tonghui Qian

Addresses: Department of Control Science and Engineering, HuaZhong University Science and Technology, Wuhan, Hubei, 430074, China; College of Physics and Information Engineering, Jianghan University, Wuhan, Hubei, 430056, China. ' Department of Control Science and Engineering, HuaZhong University Science and Technology, Wuhan, Hubei, 430074, China. ' Department of Control Science and Engineering, HuaZhong University Science and Technology, Wuhan, Hubei, 430074, China. ' College of Physics and Information Engineering, Jianghan University, Wuhan, Hubei, 430056, China

Abstract: This study presents a quasi T-S fuzzy model to represent networked control systems (NCS), which takes the performance of network with time-delay and data packet dropouts into the investigations. Representing the probability of the time-delay and the data packet dropouts in networks as the degree of membership, then according to the data packet dropouts in different node of system, this study constructs the corresponding system model, in which the system's stability is proved with linear matrix inequality (LMI). As a bench test, a double inverted pendulum control system is selected to demonstrate the feasibility and efficiency through numerical analysis. This study provides a new method of analysing and designing networked control systems.

Keywords: networked control systems; NCS; T-S fuzzy models; linear matrix inequality; LMI; stability analysis; modelling; time delay; data packet dropouts; inverted pendulum control; fuzzy control.

DOI: 10.1504/IJMIC.2012.046694

International Journal of Modelling, Identification and Control, 2012 Vol.16 No.1, pp.41 - 49

Published online: 17 Dec 2014 *

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