An optimization-based control strategy is proposed to improve control performance of a primary PI controller. The strategy, referred to as a MPC-based reference governor, optimizes the performance of a primary PI controller by supplying optimal setpoints to the primary controller. This primary PI controller is responsible for reflux ratio manipulation in a distillation column, to control the temperature of the column head. This paper shows theoretical and experimental results obtained on the laboratory-scale.
Ahmad A, Wahib A (2007) Application of Model Predictive Control (MPC) Tuning Strategy in Multivariable Control of Distillation Column. Reaktor, 11: 66-70.
Drgoňa J, Janeček F, Klaučo M, Kvasnica M (2016) Regionless explicit mpc of a distillation column. In European Control Conference 2016, 1568-1573, Aalborg, Denmark.
Drgoňa J, Klaučo M, Valo R, Bendžala J, Fikar M (2015) Model identification and predictive control of a laboratory binary distillation column. In Fikar, M. and Kvasnica, M., editors, Proceedings of the 20th International Conference on Process Control, Štrbske Pleso, Slovakia. Slovak University of Technology in
Bratislava, Slovak Chemical Library.
Gilbert E, Kolmanovsky I (2002) Nonlinear tracking control in the presence of state and control constraints: a generalized reference governor. Automatica, 38(12): 2063-2073.
Klaučo M (2016) Modeling of the Closed-loop System with a Set of PID controllers. Technical Report, Slovak University of Technology in Bratislava, Bratislava. http://www.uiam.sk/assets/publication_info.php?id_pub=1770.
Lofberg J (2004) YALMIP: A Toolbox for Modeling and Optimization in MATLAB. In Proc. of the CACSD Conference, Taipei, Taiwan. Available from http://users.isy.liu.se/johanl/yalmip/.
Martin PA, Odloak D, Kassab F (2013) Robust model predictive control of a pilot plant distillation column. Control Engineering Practice, 21(3): 231-241.
Mihaľ M, Svandova Z, Markoš J (2010) Steady state and dynamic simulation of a hybrid reactive separation process. Chemical Papers, 64(2): 193-202.
Muske KR, Badgwell TA (2002) Disturbance modeling for offset-free linear model predictive control. Journal of Process Control, 12(5): 617-632.
Skogestad S (2007) The dos and donts of distillation column control. Chemical Engineering Research and Design, 85(1): 13-23.
Volk U, Kniese D-W, Hahn R, Haber R, Schmitz U (2005) Optimized multivariable predictive control of an industrial distillation column considering hard and soft constraints. Control Engineering Practice, 13(7): 913-927.