Title :
A novel stability criterion for networked control systems using a new bounding technique
Author :
Zhang, Xian-Ming ; Han, Qing-Long
Author_Institution :
Centre for Intell. & Networked Syst., Central Queensland Univ., Rockhampton, QLD, Australia
Abstract :
This paper is concerned with the stability of networked control systems in the discrete-time domain. A new bounding technique is proposed to estimate some finite-sum terms appearing in the forward difference of the chosen Lyapunov functional. This new bounding technique can provide tighter upper bounds for some finite-sum terms and avoid overly bounding for the finite-sum terms. Then a novel delay-dependent stability criterion is derived by using this new bounding technique. Compared with some existing stability criteria in the published literature, the novel stability criterion is proven theoretically to be less conservative and is shown to be of smaller numerical complexity.
Keywords :
Lyapunov methods; computational complexity; delays; discrete time systems; networked control systems; stability criteria; Lyapunov functional; bounding technique; delay-dependent stability criterion; discrete-time domain; finite-sum term estimation; networked control systems; numerical complexity; Analytical models; Complexity theory; Vectors;
Conference_Titel :
IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society
Conference_Location :
Montreal, QC
Print_ISBN :
978-1-4673-2419-9
Electronic_ISBN :
1553-572X
DOI :
10.1109/IECON.2012.6389393