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

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Rasilo, Paavo
dc.contributor.author Salem, Aboubakr
dc.contributor.author Abdallh, Ahmed
dc.contributor.author De Belie, Frederik
dc.contributor.author Dupre, Luc
dc.contributor.author Melkebeek, Jan A.
dc.date.accessioned 2016-05-03T09:01:23Z
dc.date.available 2016-05-03T09:01:23Z
dc.date.issued 2015
dc.identifier.citation Rasilo, 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.issn 0885-8969 (printed)
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/20256
dc.description.abstract The 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.format.extent 736-744
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical & Electronics Engineers (IEEE) en
dc.relation info:eu-repo/grantAgreement/Finnish Foundation for Technology Promotion
dc.relation.ispartofseries IEEE Transactions on Energy Conversion en
dc.relation.ispartofseries Volume 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.subject.other Electrical engineering en
dc.title Effect of Multilevel Inverter Supply on Core Losses in Magnetic Materials and Electrical Machines en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.rights.holder Institute of Electrical & Electronics Engineers (IEEE)
dc.contributor.school Sähkötekniikan korkeakoulu fi
dc.contributor.school School of Electrical Engineering en
dc.contributor.department Sähkötekniikan ja automaation laitos fi
dc.contributor.department Department of Electrical Engineering and Automation en
dc.subject.keyword Eddy currents en
dc.subject.keyword electrical machines en
dc.subject.keyword excess loss en
dc.subject.keyword finite-element analysis en
dc.subject.keyword iron loss en
dc.subject.keyword magnetic hysteresis en
dc.subject.keyword magnetic materials en
dc.subject.keyword multilevel converter en
dc.subject.keyword pulse width modulation en
dc.identifier.urn URN:NBN:fi:aalto-201605021905
dc.type.dcmitype text en
dc.identifier.doi 10.1109/tec.2014.2372095
dc.type.version Post print en

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