Document details

On-line implementation of nonlinear MPC: an experimental case study

Author(s): Santos, Lino O. cv logo 1 ; Afonso, Paulo A. F. N. A. cv logo 2 ; Castro, José A. A. M. cv logo 3 ; Oliveira, Nuno M. C. cv logo 4 ; Biegler, Lorenz T. cv logo 5

Date: 2001

Persistent ID: http://hdl.handle.net/10316/3826

Origin: Estudo Geral - Universidade de Coimbra

Subject(s): Process control; Predictive control; Model-based control; Nonlinear models


Description
A nonlinear model predictive control algorithm is implemented on-line to control the liquid level and temperature in a pilot plant CSTR, where an irreversible exothermic chemical reaction is simulated experimentally by steam injection. The dynamic behavior of the pilot plant reactor is represented using a mechanistic, first principle model and a comparison between off-line simulation and experimental data is presented. Several sources of model mismatch and unmeasured disturbances are identified that affect the quality of the model in representing the reactor dynamics. Despite these mismatches and disturbances, the closed loop system is able to track setpoint changes and reject disturbances quite well. In particular, the NMPC controller is demonstrated for different tuning parameters and under conditions of constraint saturation at unstable points. http://www.sciencedirect.com/science/article/B6V2H-43K2P7T-5/1/342536dc21267c866ea2f015c70c30ec
Document Type Article
Language English
delicious logo  facebook logo  linkedin logo  twitter logo 
degois logo
mendeley logo

Related documents



    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento EU