Adaptive output feedback stabilization of a class of nonlinear systems

Author

Karagiannis, D. ; Astolfi, A. ; Ortega, R.

Author_Institution

Electr. & Electron. Eng. Dept., Imperial Coll., London, UK

Volume

2

fYear

2002

fDate

10-13 Dec. 2002

Firstpage

1491

Abstract

The problem of (adaptive) stabilization by means of output feedback of a class of nonlinear systems is addressed and solved. The proposed method relies on the asymptotic reconstruction of a stabilizing state feedback control, does not require stable zero dynamics nor the construction of a Lyapunov function for the closed loop system, and treats in a unified way unknown parameters and unmeasured states. The applicability of the method to the problem of adaptive output feedback regulation for a DC-to-DC power converter is discussed in detail.

Keywords

Lyapunov methods; adaptive control; closed loop systems; nonlinear control systems; poles and zeros; stability; state feedback; DC-to-DC power converter; Lyapunov function; adaptive output feedback regulation; adaptive output feedback stabilization; asymptotic reconstruction; closed loop system; nonlinear systems; stabilizing state feedback control; stable zero dynamics; unknown parameters; unmeasured states; Closed loop systems; Control systems; DC-DC power converters; Educational institutions; Lyapunov method; Nonlinear dynamical systems; Nonlinear equations; Nonlinear systems; Output feedback; Particle measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2002, Proceedings of the 41st IEEE Conference on

ISSN

0191-2216

Print_ISBN

0-7803-7516-5

Type

conf

DOI

10.1109/CDC.2002.1184730

Filename

1184730