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dc.contributor.authorCodas, Andres
dc.contributor.authorJahanshahi, Esmaeil
dc.contributor.authorFoss, Bjarne Anton
dc.date.accessioned2017-02-02T12:36:03Z
dc.date.available2017-02-02T12:36:03Z
dc.date.created2016-12-01T10:42:13Z
dc.date.issued2016
dc.identifier.citationIFAC-PapersOnLine. 2016, 49 (7), 931-936.nb_NO
dc.identifier.issn2405-8963
dc.identifier.urihttp://hdl.handle.net/11250/2429282
dc.description.abstractIn this work, we present the control and optimization of a network consisting of two gas-lifted oil wells, a common pipeline-riser system and a separator. The gas-lifted oil wells may be open-loop unstable. The regulatory layer stabilizes the system by cascade control of wellhead pressure measurements without needing bottom hole sensing devices. An economic Nonlinear Model Predictive Control (NMPC) based on the Multiple Shooting (MS) formulation is applied for optimization of the network operations. The optimization layer thus provides optimal settings for the regulatory controllers. The control structure has been validated by using the realistic OLGA simulator as the process, and using simplified models for Kalman filtering and the NMPC design. The simplified models are implemented in Modelica and fit to the Olga model to represent the main dynamics of the system. The proposed two-layer controller was able to stabilize the system and increase the economical outcome.nb_NO
dc.language.isoengnb_NO
dc.publisherElsevier In co-operation with IFACnb_NO
dc.subjectNonlinear Model Predictive Control; Oil Production Optimization; Extended Kalman filters; Control Structure designnb_NO
dc.titleA two-layer structure for stabilization and optimization of an oil gathering networknb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.pagenumber931-936nb_NO
dc.source.volume49nb_NO
dc.source.journalIFAC-PapersOnLinenb_NO
dc.source.issue7nb_NO
dc.identifier.doi10.1016/j.ifacol.2016.07.317
dc.identifier.cristin1406977
dc.description.localcodeAll papers published on the web site can be cited using the IFAC PapersOnLine ISSN and the individual paper DOI (Digital Object Identifier). The site is Open Access in nature - no charge is made to individuals for reading or downloading.nb_NO
cristin.unitcode194,63,25,0
cristin.unitnameInstitutt for teknisk kybernetikk
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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