Design of robust multivariable PID controllers via IMC

Author

Dong, Jiawen ; Brosilow, Coleman B.

Author_Institution

Dept. of Chem. Eng., Case Western Reserve Univ., Cleveland, OH, USA

Volume

5

fYear

1997

fDate

4-6 Jun 1997

Firstpage

3380

Abstract

We obtain a general form for the parameters of multivariable PID controllers by Maclaurin series expansion of the simple feedback form of a multivariable IMC controller. The IMC controller is designed to provide decoupled control, and is tuned either to accommodate modeling uncertainties using multivariable Mp tuning, or to get the best possible PID responses. Application of the multivariable PID controllers to simulations of three distillation models found in the literature indicates that the controllers perform as well or better than those obtained using existing methods

Keywords

control system synthesis; distillation; feedback; frequency-domain synthesis; multivariable control systems; process control; robust control; series (mathematics); three-term control; tuning; IMC; Maclaurin series expansion; PID responses; decoupled control; distillation models; internal model control; modeling uncertainties; multivariable Mp tuning; robust multivariable PID controllers; Control systems; Design methodology; Feedback; Filters; Open loop systems; Pi control; Proportional control; Robust control; Three-term control; Uncertainty;

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.1997.612092

Filename

612092