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Performance Analysis of Robust Averaging Level Control
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Linköping University, Department of Electrical Engineering, Automatic Control. Linköping University, The Institute of Technology.
Perstorp AB, Sweden.
2012 (English)In: Proceedings of the 2012 Conference on Chemical Process Control, 2012Conference paper, Published paper (Refereed)
Abstract [en]

Frequent inlet flow changes, especially in the same direction, typically cause problems for averaging level controllers. To obtain optimal flow filtering while being robust towards future inlet flow upsets closed loop robust MPC was used. Its performance and robustness is analyzed and compared to the optimal averaging level controller. The knowledge gained from the robust MPC exercise is also used to propose a robustification of the optimal controller. Both the analysis and the simulation results show that the robust controller obtains comparable flow filtering as the optimal controller even when inlet flow changes are sparse while handling frequent upsets considerably better

Place, publisher, year, edition, pages
2012.
Keyword [en]
Averaging level control, Nonlinear control, Surge tanks
National Category
Control Engineering
Identifiers
URN: urn:nbn:se:liu:diva-95600OAI: oai:DiVA.org:liu-95600DiVA: diva2:636475
Conference
2012 Conference on Chemical Process Control, Savannah, GA, USA, 11-13 January, 2012
Funder
Swedish Foundation for Strategic Research
Available from: 2013-07-10 Created: 2013-07-10 Last updated: 2013-07-10

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Isaksson, AlfLöfberg, Johan

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