Computation of eddy currents in a solid rotor induction machine with 2-D and 3-D FEM

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorBelahcen, Anouar
dc.contributor.authorSilwal, Bishal
dc.contributor.departmentElektroniikan laitosfi
dc.contributor.supervisorArkkio, Antero
dc.date.accessioned2012-09-20T09:09:12Z
dc.date.available2012-09-20T09:09:12Z
dc.date.issued2012
dc.description.abstractAlthough a two-dimensional numerical analysis of an electrical machine provides an approximately accurate solution of the electromagnetic field in the machine, a three-dimensional study is needed to understand the actual phenomena. But due to the large problem size and the complex geometries, the three dimensional model requires a huge amount of degrees of freedoms (DoFs) to be solved, which is not possible with a limited computing resources. Therefore, a coupled 2D-3D model can be the best alternative to solve such type of problems. In this thesis, a 2-D finite element analysis is performed on a solid rotor induction motor by an in-house software FCSMEK. The eddy current in the solid steel rotor was computed. A 3-D model for the same machine was built and solved in COMSOL MultiphysicsTM. To reduce the computation time of the 3-D model, the solution of the 2-D model was used as the source to the 3-D model where the stator current density is used as a transferred variable. The eddy currents are computed and the results from both 2-D and 3-D simulations are compared. Other quantities of interest such as the torque of the machine computed with the 2-D and 3-D models are also computed and compared.en
dc.format.extentix + 62 s.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/5234
dc.identifier.urnURN:NBN:fi:aalto-201209213171
dc.language.isoenen
dc.locationP1fi
dc.programme.majorSähkömekaniikkafi
dc.programme.mcodeS-17
dc.rights.accesslevelopenAccess
dc.subject.keywordelectrical machinesen
dc.subject.keywordfinite element methoden
dc.subject.keywordFEMen
dc.subject.keywordeddy currentsen
dc.subject.keywordcoupled modelsen
dc.titleComputation of eddy currents in a solid rotor induction machine with 2-D and 3-D FEMen
dc.typeG2 Pro gradu, diplomityöfi
dc.type.dcmitypetexten
dc.type.okmG2 Pro gradu, diplomityö
dc.type.ontasotDiplomityöfi
dc.type.ontasotMaster's thesisen
dc.type.publicationmasterThesis
local.aalto.digifolderAalto_90985
local.aalto.idinssi45058
local.aalto.openaccessyes
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