Synthesis of robust controllers for nonsquare multivariable nonlinear systems

Author

Kolavennu, Soumitri ; Cockburn, Juan C. ; Palanki, Srinivas

Author_Institution

Honeywell Inc., Minneapolis, MN, USA

Volume

5

fYear

2001

fDate

2001

Firstpage

4032

Abstract

Input/output linearization via state feedback provides a convenient framework for designing controllers for multivariable nonlinear systems. However, in the presence of parametric uncertainty, this approach leads to inexact linearization as well as loss of decoupling. This could result in loss of performance and stability. In this paper, a controller design methodology is developed based on input/output linearization and multiobjective H₂/H_∞ synthesis that ensures robust stability and performance of nonsquare multivariable, nonlinear systems. This methodology is illustrated via simulation of a regulation problem in a continuous stirred tank reactor

Keywords

H^∞ control; control system synthesis; linearisation techniques; multivariable control systems; nonlinear control systems; robust control; state feedback; continuous stirred tank reactor; controller design methodology; inexact linearization; input output linearization; multiobjective H infinity synthesis; nonsquare multivariable nonlinear systems; parametric uncertainty; robust controller synthesis; robust stability; simulation; state feedback; Control system synthesis; Control systems; Linear feedback control systems; Nonlinear control systems; Nonlinear systems; Performance loss; Robust control; Stability; State feedback; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2001. Proceedings of the 2001

Conference_Location

Arlington, VA

ISSN

0743-1619

Print_ISBN

0-7803-6495-3

Type

conf

DOI

10.1109/ACC.2001.946323

Filename

946323