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dc.contributor.authorGustavsen, Bjørn
dc.date.accessioned2022-07-25T08:25:16Z
dc.date.available2022-07-25T08:25:16Z
dc.date.created2021-08-10T10:33:41Z
dc.date.issued2021
dc.identifier.issn0885-8977
dc.identifier.urihttps://hdl.handle.net/11250/3008116
dc.description.abstractMeasurement-based wide-band black-box transformer models are well suited for simulation studies of high-frequency transients in power systems. The inclusion of neutral points in such models can be difficult when the model is required to simulate voltage transfer to windings with high-impedance loads. The difficulty arises because it is then necessary to include the small winding capacitive currents in the measurement and model extraction procedure, while at the same time the capacitances can be asymmetrical with respect to the winding ends. This paper introduces a new measurement procedure which can accurately capture the effect of such capacitive asymmetries. The procedure is demonstrated for a wye-wye connected transformer. The measurement and subsequent passive rational modeling results in two alternative models. The first is a four-terminal model with bonded high-voltage and low-voltage terminals, suitable for simulation of lightning overvoltages in distribution systems. The second is a full eight-terminal model, suitable for general purpose transient studies.en_US
dc.language.isoengen_US
dc.publisherIEEEen_US
dc.titleInclusion of Neutral Points in Measurement-Based Frequency-Dependent Transformer Modelen_US
dc.title.alternativeInclusion of Neutral Points in Measurement-Based Frequency-Dependent Transformer Modelen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionacceptedVersionen_US
dc.rights.holder© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
dc.source.journalIEEE Transactions on Power Deliveryen_US
dc.identifier.doi10.1109/TPWRD.2021.3098701
dc.identifier.cristin1924945
dc.relation.projectNorges forskningsråd: 269303en_US
dc.relation.projectNorges forskningsråd: 294508en_US
cristin.ispublishedtrue
cristin.fulltextpostprint
cristin.qualitycode2


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