Title :
Improved delay-dependent stability criteria for networked control systems
Author :
Song, Yan ; Wang, Jingcheng
Author_Institution :
Dept. of Autom., Univ. of Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
This paper is concerned with robust H∞ control of uncertain networked control systems with interval time-varying delay and packet dropout. For less conservative transformation, we propose a new integral inequality by dividing time interval into two subintervals and defining an appropriate scalar instead of introducing free weighting matrix. Based on this integral inequality, a new delay-dependent stability criteria for the systems are obtained by solving a convex domain. Moreover, we may obtain the feasible solutions by solving a minimization problem in terms of linear matrix inequalities. Finally numerical examples are used to illustrate the effectiveness and validity of the proposed methods.
Keywords :
H∞ control; delays; linear matrix inequalities; minimisation; networked control systems; robust control; time-varying systems; uncertain systems; LMI; convex domain; free weighting matrix; improved delay-dependent stability criteria; integral inequality; interval time-varying delay; linear matrix inequalities; minimization problem; packet dropout; robust H∞ control; time interval; uncertain networked control systems; Delay; Delay effects; Linear matrix inequalities; Robustness; Symmetric matrices; H∞ control; Networked control systems; delay-dependent; interval time-varying delay; packet dropout;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2012 10th World Congress on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-1397-1
DOI :
10.1109/WCICA.2012.6358005