Use of Permeance Network Method in the Demagnetization Phenomenon Modeling in a Permanent Magnet Motor

《Use of Permeance Network Method in the Demagnetization Phenomenon Modeling in a Permanent Magnet Motor》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、IEEETRANSACTIONSONMAGNETICS,VOL.42,NO.4,APRIL20061295UseofPermeanceNetworkMethodintheDemagnetizationPhenomenonModelinginaPermanentMagnetMotorJ.Farooq1,S.Srairi1,A.Djerdir1,andA.Miraoui1DepartmentofElectricalEngineeringandL2ESLaboratory,UniversityofTechnologyBelfort-Montbe

2、liard,90010Belfort,FranceTheaimofthispaperistopresentanewmodelforthedemagnetizationprobleminapermanentmagnetmachinehavingareversedstructure.Thepermeancenetworkapproachandsuperpositiontheoremhavebeenusedtocheckoutthesemi-analyticalmodel.Inordertovalidatethemodel,atwo-dimen

3、sionalfiniteelementmethodanalysishasbeencarriedout.Theobtainedresultsareencouragingtocontinuethemodelingprocessandthiswillopenseveralprospectsparticularlyinthediagnosticsareasofthepermanentmagnetmachines.IndexTerms—Finiteelementmethod(FEM),outer-rotorpermanentmagneticmachi

4、ne,permeancenetworkmethod.I.INTRODUCTIONNTHISPAPER,weareinterestedinstudyingthede-Imagnetizationprobleminaouter-rotorpermanentmagnetmachine.Thisdemagnetizationphenomenonismainlyduetoarmaturereactionespeciallyinthecaseswherestrongstartingtorqueisrequired;otherreasonsmayinc

5、ludehighvaryingworkingtemperaturesandalsoduetogrowingoldageofmagnet.Theuseofthepermeancenetworkmethodologyandthesuperpositiontheoremhasallowedindevelopingasoft-wareprogramwhichcomputesallthemainelectromagneticparametersofthemachineforexample,theelectromagnetictorque,thein

6、ducedvoltage,etc.Thepermeancenetworkisbasicallyamagneticnetworkanal-ogoustoelectricalnetworkwhichisbasedonmachinesgeom-etry.Itsavesinformationofgeometrywithinpermeances.Theconnectionschemeofpermeancescaneitherbeinparallelorinseriesanditispossibletorepresentacertainpartofm

7、achinesFig.1.Two-dimensionaltransversecrosssectionofthestudiedmotor.geometrybyonecommonpermeance.Thepermeancenetworkmethodhasafuturepotentialasaresearchtool,inparticular,indone;intheend,somesimulationresultsareshowntovalidatethedynamicsimulationsofanelectricalmachine.Asco

8、mparedtheproposedmodel.toanaccuratefiniteelementmethod(FEM)analysis,asimplepermeancemodelcansolve