A tuning of the nonlinear PI controller and its experimental application

Citation
Dg. Koo et al., A tuning of the nonlinear PI controller and its experimental application, KOR J CHEM, 18(4), 2001, pp. 451-455
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemical Engineering
Journal title
KOREAN JOURNAL OF CHEMICAL ENGINEERING
ISSN journal
0256-1115 → ACNP
Volume
18
Issue
4
Year of publication
2001
Pages
451 - 455
Database
ISI
SICI code
0256-1115(200107)18:4<451:ATOTNP>2.0.ZU;2-R
Abstract
Many industrial chemical process control systems consist of conventional PI D and nonlinear controllers, even though many advanced control strategies h ave been proposed. In addition, nonlinear control methods are widely used e ven for linear processes to achieve better control performance compared wit h linear PID controllers. However, there are few tuning methods for these n onlinear controllers. In this works we suggest new controller tuning method s for the error square type of nonlinear PI controller. These control metho ds can be applied to a large number of linear and nonlinear processes witho ut changing control structures. We also propose new tuning rules for integr ating processes. In addition, we suggest application guidelines for perform ing the proposed tuning rules at the pilot scale multistage level control s ystem. Finally, in this work we confirmed good control performances of the proposed tuning methods through both simulation studies and experimental st udies.