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dc.contributor.authorNikoobakht, Ahmad
dc.contributor.authorAghaei, Jamshid
dc.contributor.authorNiknam, Taher
dc.contributor.authorVahidinasab, Vahid
dc.contributor.authorFarahmand, Hossein
dc.contributor.authorKorpås, Magnus
dc.date.accessioned2019-04-30T11:09:13Z
dc.date.available2019-04-30T11:09:13Z
dc.date.created2019-01-15T16:23:12Z
dc.date.issued2018
dc.identifier.citationIET Renewable Power Generation. 2018, 12 (6), 691-701.nb_NO
dc.identifier.issn1752-1416
dc.identifier.urihttp://hdl.handle.net/11250/2596127
dc.description.abstractThis study jointly addresses two major challenges in power system operations: (i) sustained growth of intermittent offshore wind farms (OWFs) connected to AC grid via multi-terminal voltage source converter (VSC)-based high-voltage DC (HVDC) grid that brings new challenges to the power system operation, and (ii) dealing with non-linearity of the AC power flow equations with the multi-terminal VSC-based HVDC grid model. To overcome these challenges, firstly, to deal with the uncertainties caused by the high penetration of the intermittent OWFs, this study introduces a robust optimisation approach. The proposed framework is computationally efficient and does not require the probability density function of the wind speed. The proposed decision-making framework finds the optimal decision variables in a way that they remain robust against the set of uncertainties. Secondly, the mathematical representation of the full AC optimal power flow (OPF) problem, with the added modelling of multi-terminal VSC-based HVDC grid in a day-ahead scheduling problem, is a mixed-integer non-linear programming (MINLP) optimisation problem, which is computationally burdensome for large-scale systems. Accordingly, this paper proposes a computationally efficient method for adjustment of solutions set points, which is also compatible with existing customary solvers with minimal modification efforts.nb_NO
dc.language.isoengnb_NO
dc.publisherInstitution of Engineering and Technology (IET)nb_NO
dc.titleTowards robust OPF solution strategy for the future AC/DC grids: Case of VSC-HVDC-connected offshore wind farmsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionacceptedVersionnb_NO
dc.source.pagenumber691-701nb_NO
dc.source.volume12nb_NO
dc.source.journalIET Renewable Power Generationnb_NO
dc.source.issue6nb_NO
dc.identifier.doi10.1049/iet-rpg.2017.0575
dc.identifier.cristin1657560
dc.relation.projectEU/731148nb_NO
dc.description.localcodeThis paper is a postprint of a paper submitted to and accepted for publication in [IET Renewable Power Generation] and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at the IET Digital Librarynb_NO
cristin.unitcode194,63,20,0
cristin.unitnameInstitutt for elkraftteknikk
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode1


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