Robust stability analysis of networked control systems  

作　　者：Jinfeng GAO Hongye SU Jian CHU 

机构地区：[1]Institute of Automation, Zhejiang Sci-Tech University, Hangzhou Zhejiang 310018, China [2]Institute of Advanced Process Control, Zhejiang University, Hangzhou Zhejiang 310027, China

出　　处：《控制理论与应用（英文版）》2009年第3期301-306,共6页

基　　金：supported by the National Natural Science Foundation of China (No.60721062);863 Program of China (No.2006AA04Z182);Department of Science and Technology Project of Zhejiang Province (No.2006C31016);Science Foundation of Zhejiang SciTech University(No.0803817-Y)

摘　　要：This paper is concerned with the problem of robust stability analysis for networked control systems （NCSs）. A new NCS model is proposed under consideration of both the network-induced delay and parameter uncertainties. The parameter uncertainties appearing in NCSs are norm-bounded, and possibly time-varying. The conventional method and the descriptor system method are used to obtain maximum allowable delay bound （MADB） guaranteeing robust stability and stability of the NCSs, respectively, where the stability criteria are formulated in terms of linear matrix inequalities （LMIs）. And the MADB can be derived by solving the feasibility problem of the corresponding LMI. Some numerical examples are provided to illustrate the effectiveness of the proposed method.This paper is concerned with the problem of robust stability analysis for networked control systems （NCSs）. A new NCS model is proposed under consideration of both the network-induced delay and parameter uncertainties. The parameter uncertainties appearing in NCSs are norm-bounded, and possibly time-varying. The conventional method and the descriptor system method are used to obtain maximum allowable delay bound （MADB） guaranteeing robust stability and stability of the NCSs, respectively, where the stability criteria are formulated in terms of linear matrix inequalities （LMIs）. And the MADB can be derived by solving the feasibility problem of the corresponding LMI. Some numerical examples are provided to illustrate the effectiveness of the proposed method.

关 键 词：Robust control Time-delay system Networked control systems （NCSs） Linear matrix inequality （LMI） 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置] TP13[自动化与计算机技术—控制科学与工程]