Title :
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
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;
Conference_Titel :
American Control Conference, 2000. Proceedings of the 2000
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-5519-9
DOI :
10.1109/ACC.2000.878580
