LINEAR TIME-VARYING H2-OPTIMAL CONTROL OF SAMPLED-DATA SYSTEMS

被引：25

作者：

CHEN, TW ^{[1
]}

FRANCIS, BA ^{[1
]}

机构：

[1] UNIV TORONTO,DEPT ELECT ENGN,TORONTO M5S 1A4,ONTARIO,CANADA

来源：

AUTOMATICA | 1991年 / 27卷 / 06期

基金：

加拿大自然科学与工程研究理事会;

关键词：

LINEAR OPTIMAL CONTROL; TIME-VARYING SYSTEMS; DIGITAL CONTROL; DISCRETE SYSTEMS; SAMPLED-DATA SYSTEMS;

D O I：

10.1016/0005-1098(91)90131-K

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The goal in this paper is twofold. First, it is shown that linear time-varying control is in general superior to linear time-invariant (lti) control for lti plants with an H-2 criterion; an expression for the optimal performance using time-varying control is derived and a condition under which there is no advantage in using linear time-varying control over lti control is determined. Second, the H-2-optimal control of continuous-time systems is studied via dual-rate sampled-data controllers. It is shown that such a problem can be recast via the lifting technique as a standard lti H-2 problem in discrete time. A design procedure for the dual-rate H-2-optimal controller is proposed.

引用

页码：963 / 974

页数：12

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