Title

Model-Reference Robust-Control Of A Class Of Siso Systems

Authors

Authors

Z. H. Qu; J. F. Dorsey;D. M. Dawson

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

IEEE Trans. Autom. Control

Keywords

ADAPTIVE-CONTROL; LINEAR-SYSTEMS; STABILIZATION; STABILITY; Automation & Control Systems; Engineering, Electrical & Electronic

Abstract

A new control design technique, model reference robust control (MRRC), is introduced for a class of SISO systems which contain unknown parameters, possible nonlinear uncertainties, and additive bounded disturbances. The design methodology is a natural, nontrivial extension of model reference adaptive control (MRAC) which is essential to achieving robust stability and performance for linear time-invariant systems. The methodology also represents an important step toward achieving robust stability for time-varying and nonlinear systems. MRRC requires only input and output measurements of the system, rather than the full state feedback and structural conditions on uncertainties required by existing robust control results. MRRC is developed from existing model reference control (MRC) in a manner similar to MRAC. An intermediate result gives conditions under which MRRC yields exponentially asymptotic stability. The general result yielding uniformly ultimately bounded stability is then developed. A scalar example provides intuition into why the control works against a wide class of uncertainties and reveals the implicit learning capability of MRRC.

Journal Title

Ieee Transactions on Automatic Control

Volume

39

Issue/Number

11

Publication Date

1-1-1994

Document Type

Article

Language

English

First Page

2219

Last Page

2234

WOS Identifier

WOS:A1994PT58900004

ISSN

0018-9286

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