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dc.contributor.authorKetelsen, Søren
dc.contributor.authorAndersen, Torben Ole
dc.contributor.authorEbbesen, Morten Kjeld
dc.contributor.authorSchmidt, Lasse
dc.date.accessioned2020-12-09T09:58:28Z
dc.date.available2020-12-09T09:58:28Z
dc.date.created2020-11-26T23:36:55Z
dc.date.issued2020
dc.identifier.citationKetelsen, S., Andersen, T. O., Ebbesen, M. K. & Schmidt, L. (2020). A Self-Contained Cylinder Drive with Indirectly Controlled Hydraulic Lock. International journal of Modeling, identification and control, 41 (3), 185-205. doi:en_US
dc.identifier.issn1746-6172
dc.identifier.urihttps://hdl.handle.net/11250/2712548
dc.description.abstractThis paper presents a self-contained pump-controlled hydraulic linear drive including an innovative load holding sub-circuit. For safety critical applications such as crane manipulators, locking valves or load holding valves are enforced by legislation, but the load holding functionality may also be used actively to decrease the energy consumption for applications where the load is kept stationary for longer periods of time. The system proposed in this paper is based on a simple hydraulic architecture using two variable-speed electric motors each connected to a fixed-displacement pump. This architecture is well-known in academic literature, but in this paper a novel load holding sub-circuit has been included. To control this load holding functionality, the low chamber pressure needs to be controlled accurately, while still being able to control the motion of the cylinder piston as well. Due to strong cross-couplings between cylinder piston motion and chamber pressures this task is non-trivial. The control for opening the locking valves is indirect in the sense that it is controlled via the chamber pressures, which are actively controlled. The fundamental control strategy presented in this paper is based on transforming the highly coupled physical states to virtual states, significantly reducing cross-couplings.en_US
dc.language.isoengen_US
dc.publisherInstitutt for teknisk kybernetikken_US
dc.relation.urihttps://www.mic-journal.no/ABS/MIC-2020-3-4.asp/
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleA Self-Contained Cylinder Drive with Indirectly Controlled Hydraulic Locken_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.rights.holder© 2020 Norwegian Society of Automatic Controlen_US
dc.subject.nsiVDP::Teknologi: 500en_US
dc.source.pagenumber185-205en_US
dc.source.volume41en_US
dc.source.journalInternational journal of Modeling, identification and controlen_US
dc.source.issue3en_US
dc.identifier.doi10.4173/mic.2020.3.4
dc.identifier.cristin1853185
dc.relation.projectNorges forskningsråd: 237896en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


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