Robust control and stability analysis of linearized system with parameter variation application to induction motors

Author

Cauët, S. ; Rambault, L. ; Bachelier, O. ; Mehdi, D.

Author_Institution

ESIP-LAII, Poitiers, France

Volume

3

fYear

2001

fDate

2001

Firstpage

2645

Abstract

This paper discusses the synthesis and the analysis techniques applied to a nonlinear system subjected to parameter variations for which an exact feedback linearization is performed. The obtained linear system is described by a linear and a nonlinear dependant parameter parts. An H₂/H_∞ robust output feedback controller is designed on the linear part. The effect of the nonlinear part is attenuated by means of a reference model. A stability analysis method using parameter-dependant Lyapunov function is used to check the global stability in the presence of the nonlinearity which has been ignored in the synthesis step. The synthesis and the analysis results are then applied to an induction motor

Keywords

H^∞ control; control system synthesis; feedback; induction motors; linearisation techniques; machine control; nonlinear systems; robust control; H₂/H_∞ robust output feedback controller; controller design; feedback linearization; global stability; induction motor; linear dependant parameter; nonlinear dependant parameter; nonlinear system; parameter variations; parameter-dependant Lyapunov function; robust control; stability analysis; Control system synthesis; Induction motors; Linear feedback control systems; Linear systems; Lyapunov method; Nonlinear systems; Output feedback; Performance analysis; Robust control; Stability analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Decision and Control, 2001. Proceedings of the 40th IEEE Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-7061-9

Type

conf

DOI

10.1109/.2001.980667

Filename

980667