Title :
Robust Stable Controller Design of Networked Closed-loop Systems
Author :
Cui, Guimei ; Mu, Huiling ; Mu, Zhichun ; Li, Xiaoli
Author_Institution :
Inf. Eng. Sch., Univ. of Sci. & Technol. Inner Mongolia, Baotou
Abstract :
The stochastic time delays in networked closed-loop control systems are inevitable and have a significant effect on system performance or stability. In this paper, the uncertainty of time delays is regarded as that of coefficient matrices in system state equations. Furthermore, NCS is modeled as an uncertain discrete-time model with time delays. Based on the model, the problem of stable control for NCS is converted to studying the robust stability of an uncertain discrete-time system with time delays. In terms of Lyapunov theory and LMI method, the sufficient conditions of NCS robust stability is deduced to be equivalent to solving a set of LMIs by static state feedback. Simulation results show the effectiveness of the proposed method
Keywords :
Lyapunov methods; closed loop systems; control system synthesis; delay systems; discrete time systems; linear matrix inequalities; robust control; state feedback; uncertain systems; LMI method; Lyapunov theory; coefficient matrices; networked closed-loop system; networked control system; robust stable controller design; static state feedback; stochastic time delays; system state equations; uncertain discrete-time system; Control systems; Delay effects; Equations; Matrix converters; Robust control; Robust stability; Stochastic systems; Sufficient conditions; System performance; Uncertainty; Discrete-time System; LMI; Networked Control System; Robust Control; Time Delays;
Conference_Titel :
Control, Automation, Robotics and Vision, 2006. ICARCV '06. 9th International Conference on
Conference_Location :
Singapore
Print_ISBN :
1-4244-0341-3
Electronic_ISBN :
1-4214-042-1
DOI :
10.1109/ICARCV.2006.345083
