Observer-based H-infinity output feedback control with feedback gain and observer gain variations for Delta operator system

作     者：Ruiquan LIN Fuwen YANG Renchong PENG 

作者机构：College of Electrical Engineering and Automation Fuzhou University Fuzhou Fujian 350002 China 

出 版 物：《控制理论与应用（英文版）》 (控制理论与应用)

年 卷 期：2009年第7卷第2期

页      面：169-174页

核心收录：

学科分类：08[工学] 0835[工学-软件工程] 0802[工学-机械工程] 080201[工学-机械制造及其自动化] 

基　　金：supported by the Natural Science Foundation of Fujian Province (No.2008J04016) the Fujian Education Bureau Foundation (No.JA07075) 

主　　题：Observer Delta operator system Robust control Output feedback LMI 

摘      要：Considering that the controller feedback gain and the observer gain are of additive norm-bounded variations, a design method of observer-based H-infinity output feedback controller for uncertain Delta operator systems is proposed in this paper. A sufficient condition of such controllers is presented in linear matrix inequality （LMI） forms. A numerical example is then given to illustrate the effectiveness of this method, that is, the obtained controller guarantees the closed-loop system asymptotically stable and the expected H-infinity performance even if the controller feedback gain and the observer gain are varied.