Adaptive multivariable mpc controller with lp constraints

Details Adaptive multivariable mpc controller with lp constraints Adaptive multivariable mpc controller with lp constraints

G - Physics

05

B

G05B 13/04 (2006.01)

Patent

CA 2666526

A Complex Fractionator contains a feed flow rate (5) that is controlled by the upstream unit and is pre-heated in a furnace (6). The fractionator (7) has a top, middle and bottom product. The fractionator overhead temperature is controlled with a Pl controller (8) moving the top reflux. The middle product draw temperature is controlled with a PI controller (9) moving the middle product draw rate A third Pl controller (10) moves the bottom product rate to control the fractionator bottoms level The bottom composition is measured with an analyzer (11).

L'invention concerne un procédé pour développer et utiliser un contrôleur adaptatif à plusieurs variables à grande vitesse en supprimant les caractéristiques dynamiques des contrôleurs PID à partir d'un contrôleur de modèle prédictif développé en utilisant un test d'identification d'un processus. Le contrôleur à plusieurs variables résultant, basé sur des éléments de contrôle final en tant que variables manipulées, est alors utilisé dans une nouvelle adaptation de contrôle avec tous les contrôleurs PID commutés en manuel.

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