城市轨道交通供电论文.ppt

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1、PowerSupplySystemAndFeedingModeOfUrbanRailTransit城市轨道交通的供电制式和馈电方式Name：**Major:ElectricalEngineeringStudentID：*********CityTheopeningandoperational line numberOperationmileages/kmThelengthof long-term planning/kmShangHai14567Over1000kilometersBeiJing17467Over1000kilometersGu

2、angZhou9260.5Over1000kilometersNanJing5182.2785ShenZhen5178.1866ChongQing5168.8820TianJin4135.61380DaLian3106.2———WuHan379.91200ChengDu2601106PowersupplysystemforurbanrailtransitSelectionandanalysisoftwopowersupplymodes（DC750VandDC1500V）Characteristicsofthethirdrailandcaten

3、aryfeedingmodeResearchQuestion1:PowerSupplySystemForUrbanRailTransit110kVvoltagewillbetransformedinto35kVbythemainsubstationAC35kVvoltagewillbetransformedintoDC750VorDC1500VbythetractionsubstationResearchQuestion2:Selectionandanalysisoftwopowersupplymodes（DC750VandDC1500V）T

4、hemain technicalindicatorsDC750VDC1500VVoltageLossLargeSmallTheeffectofstraycurrentLargeSmallRatedpassengercapacityRelativelysmallLargeFeedermodeThethirdrailCatenaryRangeofvoltagefluctuation500V~900V1000V~1800VPowersupplydistance≤2kM(4M2T)≤2.5kM(4M2T)Comparisonofthemain tec

5、hnicalindicatorsofDC750VandDC1500VfeedermodeResearchQuestion3:CharacteristicsofthethirdrailandcatenaryfeederpatternThethirdrailpowersupplyNoCatenaryThethirdrail(第三轨)compositiondiagramofthethirdrail第7页ResearchQuestion3:CharacteristicsofthethirdrailandcatenaryfeederpatternCat

6、enarypowersupply第8页ResearchQuestion3:CharacteristicsofthethirdrailandcatenaryfeederpatternComparisonofthethirdrailandcatenaryfeederpatternthethirdrail（第三轨）Catenary（接触网）SystemStructuresimplecomplexTheconductivematerialsteel-aluminumcompoundrailcopperTheunit ofelectricalresis

7、tivity0.1250.0178Allowsthe speed≤90km/h≥120km/hThecostofthesystemTherelativelysmallTherelativelylargeMaintenanceworkSmalllargeThanksforyourattention!