干式潛水電機定子溫度場分析.pdf

1、合肥工業(yè)大學碩士學位論文干式潛水電機定子溫度場分析姓名：王瑞男申請學位級別：碩士專業(yè)：電氣工程指導教師：鮑曉華201105AnalysisofStatTemperatureFieldofDrySubmersibleMotABSTRACTLargedrysubmersiblemotmainlyusedinlargescaledwaterconservancyprojectsurbanwatersupplydrainagesystemsmi

2、nedrainagedisasterreliefothermajoccasions.Withthedevelopmentofsubmersiblemotmanufacturingindustrytheunitcapacityofsubmersiblemotisgrowing.Therefetherearememematerialswhicharehighelectromagicthermalloadsbeingusedinthedrys

3、ubmersiblemotdesignthismeanstheunitvolumelossofthemotwouldincreaseconstantly.Itcouldleadtothemot’stemperaturetoohighitslocaltemperaturetoohigh.Thiswouldnotonlyreducethemotlifeaffectthemot’soutputaswellasefficiencytheothe

4、reconomictechnicalindicatsbutalsocauseseriousdisttionofmotstructuralcomponentsendangeringthesafeoperationofmot.Soithasimptantsignificancetocalculatethethreedimensionaltemperaturefieldofthesubmersiblemotaccurately.Asthest

5、ructureofthedrysubmersiblemotisextremelycomplextherotthefanwoulddriveinternalairflowduringthemotruntimethismakestheanalysiscalculationofthemotstatthreedimensionaltemperaturefieldmecomplicated.Accuratecalculatethedistribu

6、tionofthedrysubmersiblemotstatthreedimensionaltemperaturefieldinvolvesfluidmechanicselectromagicfieldtheyheattransferthefiniteelementmethodmanyotherdisciplinesfieldsalargenumberofexperimentsindepthresearchareneeded.Inthi

7、spaperHefeiSanYiJiangHaiPumpCo.Ltd.(thefmerHefeiElectricFacty)800kWinternalairexternalwatercooleddrysubmersiblemotwasusedastheresearchobjectit’sstatthreedimensionaltemperaturefieldwascalculatedanalyzed.Firstthe3Dmathemat

8、icalmodelcalculationmodelofthestattemperaturefieldoverthelargedrysubmersiblemotaredevelopedbasedonheattransferthey.Themethodofcalculatingtheconductivitythermalcoefficientaboutsubmersiblemotisgiven.Secondthefiniteelementm