Effect of Multilevel Inverter Supply on Core Losses in Magnetic Materials and Electrical Machines

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorRasilo, Paavo
dc.contributor.authorSalem, Aboubakr
dc.contributor.authorAbdallh, Ahmed
dc.contributor.authorDe Belie, Frederik
dc.contributor.authorDupre, Luc
dc.contributor.authorMelkebeek, Jan A.
dc.contributor.departmentSähkötekniikan ja automaation laitosfi
dc.contributor.departmentDepartment of Electrical Engineering and Automationen
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.schoolSchool of Electrical Engineeringen
dc.date.accessioned2016-05-03T09:01:23Z
dc.date.available2016-05-03T09:01:23Z
dc.date.issued2015
dc.description.abstractThe effect of multilevel inverter supply on power losses in magnetic cores and electrical machines is studied. A dynamic numerical model for the hysteresis, eddy current, and excess losses in a core lamination is first developed. By both measurements and simulations for a ring-core inductor, we demonstrate how increasing the number of inverter voltage levels decreases the iron losses when compared with traditional two-level supply. Although the switching frequency has a significant impact on the iron losses in the case of a traditional two-level inverter, using three or five voltage levels makes the losses almost independent of the switching. Finally, finite-element simulations show that simi-lar reductions are also possible for the core losses of 150-kVA and 12.5-MW wound-field synchronous machines, in which rather low switching frequencies are typically used. Calorimetric loss measurements are also presented for the 150-kVA machine in order to confirm the significant effect of switching frequency on the core losses with two-level inverter supply.en
dc.description.versionPeer revieweden
dc.format.extent736-744
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRasilo, Paavo & Salem, Aboubakr & Abdallh, Ahmed & De Belie, Frederik & Dupre, Luc & Melkebeek, Jan A. 2015. Effect of Multilevel Inverter Supply on Core Losses in Magnetic Materials and Electrical Machines. IEEE Transactions on Energy Conversion. Volume 30, Issue 2. 736-744. ISSN 0885-8969 (printed). DOI: 10.1109/tec.2014.2372095.en
dc.identifier.doi10.1109/tec.2014.2372095
dc.identifier.issn0885-8969 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/20256
dc.identifier.urnURN:NBN:fi:aalto-201605021905
dc.language.isoenen
dc.publisherInstitute of Electrical & Electronics Engineers (IEEE)en
dc.relationinfo:eu-repo/grantAgreement/Finnish Foundation for Technology Promotion
dc.relation.ispartofseriesIEEE Transactions on Energy Conversionen
dc.relation.ispartofseriesVolume 30, Issue 2
dc.rights© 2015 Institute of Electrical & Electronics Engineers (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 work.en
dc.rights.holderInstitute of Electrical & Electronics Engineers (IEEE)
dc.subject.keywordEddy currentsen
dc.subject.keywordelectrical machinesen
dc.subject.keywordexcess lossen
dc.subject.keywordfinite-element analysisen
dc.subject.keywordiron lossen
dc.subject.keywordmagnetic hysteresisen
dc.subject.keywordmagnetic materialsen
dc.subject.keywordmultilevel converteren
dc.subject.keywordpulse width modulationen
dc.subject.otherElectrical engineeringen
dc.titleEffect of Multilevel Inverter Supply on Core Losses in Magnetic Materials and Electrical Machinesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionPost printen
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