H-INFINITY LTR PROCEDURE WITH SPECIFIED DEGREE OF RECOVERY

被引：10
作者：
SAEKI, M
机构：
[1] Institute of Information Sciences and Electronics, University of Tsukuba, Tsukuba, Ibaraki
来源：
AUTOMATICA | 1992年 / 28卷 / 03期
关键词：
ROBUST CONTROL; LINEAR OPTIMAL CONTROL; OBSERVERS; STABILITY; KALMAN FILTERS;
D O I：
10.1016/0005-1098(92)90175-F
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a new Loop Transfer Recovery procedure which recovers a robustness property at plants inputs to a specified degree. It is pointed out that stability of a controller is a necessary condition for the LTR procedure. A weighted difference between the open loop transfer function of a state feedback system by a LQ regulator and that of an output feedback system by a LQ regulator with an observer is estimated quantitatively by an H(infinity) norm. A design problem of full/minimal order observers for which the norm is less than a specified value is proposed. This problem is reduced to an H(infinity) optimal control problem with state feedback. A relation between this method and LQG/LTR method is examined.
引用
收藏
页码：509 / 517
页数：9
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