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Digital
Library of the European Council for Modelling
and Simulation |
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Title: |
Compensation Of Valve Deadzone Using Mixed Integer
Predictive Control |
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Authors: |
Jakub Novak,
Petr Chalupa |
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Published in:
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(2017).ECMS 2017 Proceedings
Edited by: Zita Zoltay Paprika, Péter Horák, Kata Váradi, Péter Tamás
Zwierczyk, Ágnes Vidovics-Dancs, János Péter Rádics European Council for Modeling and Simulation. doi:10.7148/2017 ISBN:
978-0-9932440-4-9/ ISBN:
978-0-9932440-5-6 (CD) 31st European Conference on Modelling and
Simulation, Budapest, Hungary, May 23rd
– May 26th, 2017 |
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Citation
format: |
Jakub
Novak, Petr Chalupa (2017). Compensation Of Valve Deadzone Using Mixed
Integer Predictive Control, ECMS 2017 Proceedings Edited by: Zita Zoltay
Paprika, Péter Horák, Kata Váradi, Péter Tamás Zwierczyk, Ágnes
Vidovics-Dancs, János Péter Rádics European Council for Modeling and
Simulation. doi: 10.7148/2017-0379 |
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DOI: |
https://doi.org/10.7148/2017-0379 |
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Abstract: |
Stiction
is a nonlinear friction phenomenon that causes poor performance of control
loops in the process industries. In this work, we develop a mixed-integer MPC
(Model Predictive Control) formulation including valve dynamics for a sticky
valve in order to improve control loop performance. The introduction of the
valve nonlinearity into the model prevents the MPC from requesting physically
unrealistic control actions due to valve stiction. Simulation studies using a
two-tank system show that, if the deadband value is known apriori, the
Mixed-Integer Quadratic Programming (MIQP) can effectively improve the
closed-loop performance in the presence of valve stiction. |
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