單相自起動永磁同步電機電磁分析.pdf

1、青島大學碩士學位論文單相自起動永磁同步電機電磁分析姓名：藺江磊申請學位級別：碩士專業(yè)：電力系統(tǒng)及其自動化指導教師：吳新振20080601AbstractAbstractmesinglephasepermanentmagnetsynchronousmotorwhichisofasimplerstructurethanthatofthebrushlessDCmotorcanselfstartwhensinusoidatvoltageiSsu

2、ppliedTherefore，ithasahigherefficiencythansinglephaseinductionm面chineDue‘toitssimplestructure，highefficiencyandlowcost，themotorisacompetitivehousehold’’applianceinthefutureBasedonthemotorstructureandoperatingprinciple，th

3、eradialairgapfluxdensitytheinduction，theEMFandthereluctancetorquearecalculated，whichprovideatheoreticalfoundationtooptimizationdesignforitCalculationofradialairgapfluxdensitywhichiSthebaseofmotordesigniSthepreconditionfo

4、ranalyzingmotoroscillationandnoiseByusingthemagneticcircuitmethod，theradialairgapfluxdensityiSobtainedSincethemagneticfluxdistributioniSdifficulttocalculated，anairgaprelativespecificpermeancefunctionispresentedbymeansoft

5、heSchwarzChristofieltransformationandthedistributionofstatorportfluxdensityiScalculatedInadditionfortwooperatingcasesrelatedtothestatorcurrentwaveformandpermanentrotoraxisposition，atwodimensionalfiniteelementmethod(2DFEM

6、)iSusedtoanalyzethemagneticfieldofthemotonMagneticlinesoffluxandairgapradialfluxdensitywaveformsatfourtypicalpatternsareobtainedMagneticlinesoffluxandradialairgapfluxdensitywaveformsatthr如typicalconditionsareobtainedby2D

7、FEMMagnetomotiveisresolvedintothedIlxesandqaxesbyusingdoublereactiontheory111eprincipleofsuperpositionisu4lizedtodeducefluxdensitywaveformswithstatorwindingexcifkdConsequently，tlieradialairgapradialfluxdensitywaveformsca

8、nbegained矗ccurate黟andconvenient!ZwithrotorinthearbitrarypositionandstatorwindingexcitedbyanycurrentThestatorwindinginductance，EM『Fandreluctance侈內Hecalculationarecardedoutbytwodifferentmethods，themagneticcircuitmethodandF

9、EMTheagreementbetweentheexperimentresultsandthecalculationresultsvalidatesthereliabilityandaccuracyoftheanalysismethodspresentedKeywords：singlephasepermanentmagnetsynchronousmotor；radialairgapfluxdensity；parametercalcula