预览加载中，请您耐心等待几秒...

变频牵引电机绞线对介质损耗的研究.docx

预览
1/2
2/2

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

变频牵引电机绞线对介质损耗的研究 Title:StudyonDielectricLossinVariableFrequencyTractionMotorWindings Abstract: Variablefrequencytractionmotorsareessentialcomponentsinelectricvehicles,providinglocomotionpower.Inthesemotorwindings,dielectriclossisanimportantfactorthataffectstheperformanceandefficiencyofthemotor.Thisresearchaimstoinvestigateandanalyzethedielectriclossinvariablefrequencytractionmotorwindings.Thestudyexplorestheimpactofvariousparameters,includinginsulationmaterials,temperature,frequency,andvoltage,onthedielectricloss.Theresultsobtainedfromthisresearchwillprovideabetterunderstandingofthedielectriclossinvariablefrequencytractionmotorwindingsandcontributetothedevelopmentofmoreefficientandreliableelectricvehicles. Introduction: Withtheincreasingdemandforelectricvehicles(EVs),variablefrequencytractionmotorshavebecomewidelyusedduetotheirhighefficiencyandcompactdesign.Thesemotorsoperateatvariousfrequencies,allowingforflexiblecontrolandimprovedperformance.However,oneofthesignificantchallengesinthedesignandoperationofthesemotorsisthedielectricloss. Dielectriclossreferstotheenergydissipatedthroughtheinsulationmaterialsinthemotorwinding.Itisprimarilycausedbytheinteractionbetweentheelectricfieldandthepolarmoleculespresentintheinsulationmaterial.Thedielectriclossleadstoheatgeneration,reducedefficiency,andpotentialdamagetothemotorwinding. Methods: Toinvestigatethedielectriclossinvariablefrequencytractionmotorwindings,aseriesofexperimentswereconducted.DifferentinsulationmaterialscommonlyusedinEVmotorwindingsweretested,includingenamel-coatedwire,polyimide,andmicatapes.Thespecimensweresubjectedtovaryingtemperatures,frequencies,andvoltagestosimulatereal-worldoperatingconditions.Thedielectriclosswasmeasuredusingahigh-resolutionpoweranalyzer,andthedatawererecordedforanalysis. Results: Theresearchfindingsrevealedseveralkeyfactorsthatinfluencedielectriclossinvariablefrequencytractionmotorwindings.Firstly,highertemperaturesincreaseddielectriclosssignificantlyduetoelevatedmolecularmotion.Secon