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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.