A nonlinear adaptive controller for a pH neutralization process

Author

Sankar De, D. ; Loh, Ai-Poh ; Krishnaswamy, P.R.

Author_Institution

Nat. Univ. of Singapore, Singapore

Volume

4

fYear

2000

fDate

2000

Firstpage

2250

Abstract

A model reference adaptive control scheme is designed for the control of pH in a neutralization problem. In this adaptive scheme, the control and parameter estimation laws are derived based on a reference model approach for nonlinearly parameterized systems. By suitably choosing the parameter update and control laws, the algorithms are much simplified for this pH problem. Global stability and zero tracking error can be achieved with this new adaptive controller. Simulation and experimental results are given to illustrate the control scheme. Comparative results are also given

Keywords

asymptotic stability; chemical technology; model reference adaptive control systems; nonlinear control systems; pH control; parameter estimation; process control; global stability; model reference adaptive control scheme; nonlinear adaptive controller; nonlinearly parameterized systems; pH neutralization process; Adaptive control; Ear; Error correction; Hydrogen; Nonlinear control systems; Parameter estimation; Process control; Programmable control; Robust control; Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

American Control Conference, 2000. Proceedings of the 2000

Conference_Location

Chicago, IL

ISSN

0743-1619

Print_ISBN

0-7803-5519-9

Type

conf

DOI

10.1109/ACC.2000.878580

Filename

878580