Nonminimum-phase process control with controllers based on simplified modeling

Author

Laszczyk, Piotr ; Czeczot, Jacek

Author_Institution

Silesian Univ. of Technol., Gliwice, Poland

fYear

2012

fDate

3-5 Oct. 2012

Firstpage

1652

Lastpage

1657

Abstract

This paper deals with the control of the example heating-cooling nonminimum-phase system based on its simplified modeling. Two models are considered: FOPDT (First Order + Dead Time) approximation of the step response and simplified first order physical model. On the basis of these models, two model-based control strategies are derived: Balance-Based Adaptive Controller (B-BAC) and Predictive Functional Controller (PFC). They are implemented as virtual controllers and their control performance is verified by simulation in the presence of significant modeling inaccuracies. The results show the superiority of B-BAC and PFC over conventional PI control.

Keywords

PI control; adaptive control; approximation theory; chemical industry; cooling; heating; predictive control; process control; B-BAC; FOPDT; PFC; PI control; balance-based adaptive controller; first order + dead time approximation; heating-cooling nonminimum-phase system; model-based control; nonminimum-phase process control; predictive functional controller; simplified first order physical model; virtual controller; Adaptation models; Approximation methods; Heating; Mathematical model; Process control; Tuning;

fLanguage

English

Publisher

ieee

Conference_Titel

Control Applications (CCA), 2012 IEEE International Conference on

Conference_Location

Dubrovnik

ISSN

1085-1992

Print_ISBN

978-1-4673-4503-3

Electronic_ISBN

1085-1992

Type

conf

DOI

10.1109/CCA.2012.6402373

Filename

6402373