Intelligent learning control for a class of nonlinear dynamic systems

Author

Seo, W.G. ; Park, D.H. ; Lee, J.S.

Author_Institution

Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol., South Korea

Volume

146

Issue

2

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

165

Lastpage

170

Abstract

A controller is presented which guarantees system stability by using a feedback controller coupled with an intelligent compensator, and achieves precise tracking by using a set of iterative learning rules. In the feedback plus intelligent controller unit, the feedback control part stabilises the overall closed-loop system and keeps its error bounded, and the intelligent compensator estimates and compensates for the nonlinear part of the system, thereby keeping the feedback gains reasonably low in the feedback controller. In the iterative learning controller, a simple learning control rule is used to achieve precise tracking of the reference signal and a parameter learning rule is used to update the parameters of the intelligent compensator, thereby identifying the uncertain nonlinearity as closely as possible

Keywords

closed loop systems; compensation; intelligent control; learning systems; nonlinear dynamical systems; stability; tracking; closed-loop system; compensation; feedback; intelligent control; learning control; nonlinear dynamic systems; stability; tracking;

fLanguage

English

Journal_Title

Control Theory and Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2379

Type

jour

DOI

10.1049/ip-cta:19990520

Filename

784761