Estimation of additional losses due to random contacts at the edges of stator of an electrical machine

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorShah, Sahas Bikram
dc.contributor.authorRasilo, Paavo
dc.contributor.authorBelahcen, Anouar
dc.contributor.authorArkkio, Antero
dc.contributor.departmentSähkötekniikan ja automaation laitosfi
dc.contributor.departmentDepartment of Electrical Engineering and Automationen
dc.contributor.labResearch Group of Electromechanicsen
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.schoolSchool of Electrical Engineeringen
dc.date.accessioned2016-05-20T09:01:19Z
dc.date.available2016-05-20T09:01:19Z
dc.date.issued2015
dc.description.abstractThe burrs of electrical machine formed during punching process impair the insulation and make random galvanic contacts between the electrical sheets. This paper presents the modeling of random galvanic contacts in a 37 kW induction machine using a surface boundary layer model. Several thousand time stepping finite element simulations were performed, varying the conductivity randomly at the edges of electrical sheets. Then, the additional losses were computed using a vector potential formulation and the surface boundary layer model. The preliminary result showed the increase of total electromagnetic loss by 7.7%en
dc.description.versionPeer revieweden
dc.format.extent1501-1510
dc.format.mimetypeapplication/pdfen
dc.identifier.citationShah, Sahas Bikram & Rasilo, Paavo & Belahcen, Anouar & Arkkio, Antero. 2015. Estimation of additional losses due to random contacts at the edges of stator of an electrical machine. COMPEL. Volume 34, Issue 5. 1501-1510. ISSN 0332-1649 (printed). DOI: 10.1108/compel-02-2015-0083.en
dc.identifier.doi10.1108/compel-02-2015-0083
dc.identifier.issn0332-1649 (printed)
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/20375
dc.identifier.urnURN:NBN:fi:aalto-201605192043
dc.language.isoenen
dc.publisherEmeralden
dc.relation.ispartofseriesCOMPELen
dc.relation.ispartofseriesVolume 34, Issue 5
dc.rights© 2015 Emerald. This is the post print version of the following article: Shah, Sahas Bikram & Rasilo, Paavo & Belahcen, Anouar & Arkkio, Antero. 2015. Estimation of additional losses due to random contacts at the edges of stator of an electrical machine. COMPEL. Volume 34, Issue 5. 1501-1510. ISSN 0332-1649 (printed). DOI: 10.1108/compel-02-2015-0083, which has been published in final form at http://www.emeraldinsight.com/doi/full/10.1108/COMPEL-02-2015-0083.en
dc.rights.holderEmerald
dc.subject.keywordboundary conditionsen
dc.subject.keywordeddy currenten
dc.subject.keywordelectric conductivityen
dc.subject.keywordFEMen
dc.subject.keywordmagnetic vector potentialen
dc.subject.otherElectrical engineeringen
dc.subject.otherMathematicsen
dc.titleEstimation of additional losses due to random contacts at the edges of stator of an electrical machineen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.dcmitypetexten
dc.type.versionPost printen

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