Measuring power losses of electrical steel sheets in one- and two-dimensional magnetic fields

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.advisor Belahcen, Anouar; TkT
dc.contributor.author Alkar, Khaled
dc.date.accessioned 2011-12-08T09:38:12Z
dc.date.available 2011-12-08T09:38:12Z
dc.date.issued 2007
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/1039
dc.description.abstract Among the electrical machine users and designers, strong interest is shown to reduce the core losses at the design stage. Therefore, a rigorous analysis of the electromagnetic behavior is needed to fulfill such a purpose. Rotational power loss can contribute by a significant amount of the total core losses and, thus, has to be given a thoughtful attention. Mathematical models have been emerging to account for these losses. Yet, these models require validation by measurements and the loss phenomena have to be thoroughly studied. Measuring difficulties are often encountered due to many complications associated with the phenomena. This thesis investigates experimentally the power losses using a modern measuring system in one- and two-dimensional magnetic fields. A measurement technique for rotating flux and magnetic field strength components in electrical steel sheets is presented. The behavior of the power losses in the sheets for one- and two-dimensional excitation fields is studied. A comparison of the power losses under different excitation fields and frequencies is presented. The measuring setup allowed the flux density to reach high values in the used material (By=1.85 T and Bx=1.72 T). en
dc.format.extent 71
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Helsinki University of Technology en
dc.publisher Teknillinen korkeakoulu fi
dc.subject.other Electrical engineering en
dc.title Measuring power losses of electrical steel sheets in one- and two-dimensional magnetic fields en
dc.type G2 Pro gradu, diplomityö fi
dc.contributor.department Department of Electrical and Communications Engineering en
dc.contributor.department Sähkö- ja tietoliikennetekniikan osasto fi
dc.subject.keyword power losses en
dc.subject.keyword rotating field en
dc.subject.keyword magnetic measurements en
dc.subject.keyword electrical steel sheets en
dc.identifier.urn urn:nbn:fi:tkk-010204
dc.type.dcmitype text en
dc.programme.major Electromechanics en
dc.programme.major Sähkömekaniikka fi
dc.programme.mcode S-17
dc.type.ontasot Diplomityö fi
dc.type.ontasot Master's thesis en
dc.contributor.supervisor Arkkio, Antero; Prof.
dc.programme Elektroniikan ja sähkötekniikan koulutusohjelma fi
dc.contributor.lab Laboratory of Electromechanics en
dc.contributor.lab Sähkömekaniikan laboratorio fi
dc.location P1 fi


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