Controller synthesis for input-constrained nonlinear systems subject to unmeasured disturbances

Author

Kendi, Thomas A. ; Brockman, Mark L. ; Corless, Martin ; Doyle, F.J.

Author_Institution

Sch. of Chem. Eng., Purdue Univ., West Lafayette, IN, USA

Volume

5

fYear

1997

fDate

4-6 Jun 1997

Firstpage

3088

Abstract

Two synthesis methods for constrained nonlinear systems are applied to systems with unmeasured disturbances. The first approach, an extension to nonlinear internal model control (NLIMC), solves an instantaneous minimization to ensure nominal performance. The second approach utilizes Lyapunov theory to obtain a controller which guarantees bounds on the system input and output for bounded unmeasured disturbances. The utility of both approaches is demonstrated for a CSTR case study

Keywords

Lyapunov methods; constraint theory; control system synthesis; minimisation; model reference adaptive control systems; nonlinear control systems; optimal control; CSTR; IMC; Lyapunov theory; NLIMC; bounded unmeasured disturbances; controller synthesis; input bounds; input-constrained nonlinear systems; instantaneous minimization; nonlinear internal model control; output bounds; Actuators; Continuous-stirred tank reactor; Control system synthesis; Control systems; Extraterrestrial measurements; Nonlinear control systems; Nonlinear filters; Nonlinear systems; Performance loss; Process control;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 1997. Proceedings of the 1997

Conference_Location

Albuquerque, NM

ISSN

0743-1619

Print_ISBN

0-7803-3832-4

Type

conf

DOI

10.1109/ACC.1997.612026

Filename

612026