Loss Identification using Inverse Thermal Modelling in Cage Induction Motor

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dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.advisorOsaruyi, Osemwinyen
dc.contributor.authorRazzaq, Muhammad
dc.contributor.schoolSähkötekniikan korkeakoulufi
dc.contributor.supervisorArkkio, Antero
dc.date.accessioned2019-05-12T15:09:34Z
dc.date.available2019-05-12T15:09:34Z
dc.date.issued2019-05-06
dc.description.abstractInduction motors play a key role in moving the wheel of the modern industry with ever increasing demand and need of high performance and more efficient electric machines. To meet this ever increasing demand, this thesis covers the base of it i.e. losses occurring in the induction motor and thermal modelling of motor on the basis of the losses. In order to compute the iron losses, COMSOL Multiphysics has been put to use which is a very useful for vast analysis on the basis of Finite Element Analysis. A quasi 3D model of the induction motor is built in COMSOL to compute the losses occurring in the stator and rotor of the induction motor. These losses are then put to further application by building 3D thermal model of the same motor in COMSOL Multiphsics for modelling the thermal behavior of the machine. In order to validate the theoretical work, experiments have been conducted on actual machine. In order to get vast practical data of temperature from the motor, a dedicated printed circuit board embedded with PT100 RTDs is designed to be put inside the stator of the machine while manufacturing. In the end, a detailed comparison of the simulated and measured results is done for deep understanding of the loss and thermal behavior phenomena. The experimental results validated the thermal modelling for the simulated losses by showing strong coherence with the simulated results. The temperature rise data from sensors sheet inserted in the stator came out to be very useful in validating the results and in using the inverse thermal computation of losses.en
dc.format.extent53+1
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/37922
dc.identifier.urnURN:NBN:fi:aalto-201905123024
dc.language.isoenen
dc.locationP1fi
dc.programmeAEE - Master’s Programme in Automation and Electrical Engineering (TS2013)fi
dc.programme.majorElectromechanicsfi
dc.programme.mcodeELEC3024fi
dc.subject.keywordelectric Mmchinesen
dc.subject.keywordiron iossen
dc.subject.keywordcopper iossen
dc.subject.keywordheat transferen
dc.subject.keywordfinite element analysisen
dc.titleLoss Identification using Inverse Thermal Modelling in Cage Induction Motoren
dc.typeG2 Pro gradu, diplomityöfi
dc.type.ontasotMaster's thesisen
dc.type.ontasotDiplomityöfi
local.aalto.electroniconlyyes
local.aalto.openaccessyes
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