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Modeling and robust stability criterion of uncertain networked control systems with time-varying delays

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3 Author(s)
Huaicheng Yan ; Department of Electronic Engineering, The Chinese University of Hong Kong, Shatin N.T., Hong Kong ; Max Q. -H. Meng ; Xinhan Huang

In this paper, the problem of delay-dependent stability for a class of networked control systems (NCSs) with uncertainties and time-varying delays is investigated. A continuous time model for a class of multi-input and multi-output (MIMO) NCSs with many independent sensors and actuators is proposed. Based on descriptor system approach combined with linear matrix inequality (LMI) techniques, a novel delay-dependent robust stability criterion in terms of LMI is obtained. Compared to some existing results, the proposed method can give a much less conservative maximum allowable delay bound (MADB) and the result is more effective. Numerical example is illustrated the effectiveness of the proposed criterion and is an improvement over previous ones.

Published in:

Intelligent Control and Automation, 2008. WCICA 2008. 7th World Congress on

Date of Conference:

25-27 June 2008