Multi-variable nonlinear MPC of an ill-conditioned distillation column

JB Waller, Jari Böling

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    14 Citations (Scopus)


    A quasi-ARMAX modelling scheme is studied for the purpose of modelling and control of multi-variable ill-conditioned and nonlinear processes. A distillation column is used as a case-study. The modelling technique is in this paper extended for use in the multi-variable case. Also, the nonlinear directionality of the distillation column is analyzed and illustrated. The nonlinear MPC formulation with the quasi-ARMAX model used for prediction is studied for control of the distillation column at different operating regions. (C) 2004 Elsevier Ltd. All rights reserved.
    Original languageUndefined/Unknown
    Pages (from-to)23–29
    Number of pages7
    JournalJournal of Process Control
    Issue number1
    Publication statusPublished - 2005
    MoE publication typeA1 Journal article-refereed


    • directionality
    • distillation
    • III-conditionedness
    • multi-variable control
    • multi-variable identification
    • nonlinear control

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