Robust optimal model matching for the non-minimum phase plants

Author

Wu, Xudong ; Zhong, Yisheng ; Xie, Xueshu

Author_Institution

Dept. of Autom., Tsinghua Univ., Beijing, China

Volume

3

fYear

1997

fDate

10-12 Dec 1997

Firstpage

2567

Abstract

Robust optimal (or perfect) model matching problem for the linear time-variant systems is dealt with in this paper. A two-degree of freedom controller is used. For the case of the nonminimum phase plants with multiplicative perturbations, the problem of robust stability of closed-loop system under the conditions of optimal model matching is transferred into a constrained H_∞ optimization problem. A new method for determining parameters of the controller is given, which involves solving an H_∞ interpolation problem

Keywords

H^∞ control; closed loop systems; interpolation; model reference adaptive control systems; optimal control; perturbation techniques; robust control; time-varying systems; 2-DOF controller; H_∞ interpolation problem; closed-loop system; constrained H_∞ optimization problem; linear time-variant systems; multiplicative perturbations; nonminimum phase plants; perfect model matching; robust optimal model matching; robust stability; Automatic control; Automation; Constraint optimization; Design methodology; Interpolation; Optimal control; Polynomials; Robust stability; Robustness; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 1997., Proceedings of the 36th IEEE Conference on

Conference_Location

San Diego, CA

ISSN

0191-2216

Print_ISBN

0-7803-4187-2

Type

conf

DOI

10.1109/CDC.1997.658269

Filename

658269