Multi model predictive control with integral action for distillation column

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Model Predictive Control (MPC) can be used to achieve offset-free control utilizing an observer. The use of an observer is problematic when the observability is low and may add additional tuning problems. A combined MPC, based on a min-max configuration, is combined with an integral controller as an alternative way of introducing integral action and achieving offset-free control. The controller setup is tuned for control of a distillation unit, which is a non-linear system with considerable interactions when using LV-configuration and controlling both top and bottoms products. The suggested controller is tested using a dynamic model for simulation of the distillation unit. The control simulations show that the proposed technique can achieve good performance, achieving offset-free control and not many oscillations, for both disturbance rejection and set-point tracking.
Original languageEnglish
Title of host publicationAIP Conference Proceedings
Subtitle of host publication2nd Process Systems Engineering and Safety (ProSES) Symposium 2021
PublisherAIP Publishing
ISBN (Electronic)978-0-7354-4640-3
Publication statusPublished - 8 Sept 2023


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