TheDesignofSubwayPowerSupplySystem地铁牵引供电系统设计摘要牵引供电系统是城市轨道交通系统中最为重要的基础能源设施，其功能是为轨道交通系统中的电力车辆供电，确保轨道交通列车车辆的正常运行。通过对供电方案的比较，**地铁供电系统采用集中供电方式，系统包含电业局地区变电所与轨道交通主变电所之间的输电线路、轨道交通供电系统内部牵引降压输配电网络、直流牵引供电网和车站低压配电网；牵引供电系统由主变电所、高压/中压供电网络、牵引供电系统电力监控系统、接触网系统、杂散电流防护和接地系统、供电车间等组成。轨道交通供电系统的主要功能如下：接受、分配电能：主变电所的主变压器将110KV高压电变换成20KV中压电、20KV供电网络将电能分配到每一个车站和车辆段内的牵引变电所和降压变电所。关键字：集中供电方式牵引变电所DC1500V接触轨20kV中压AbstractTractionpowersupplysystemofurbanrailtransitsystemisthemostimportantbasicenergyfacilities,itsfunctionisprovidingpowerforrailtransitsystem,ensurethenormaloperationofrailtransitvehicle.Throughthecomparisonofthepowersupplyscheme,shijiazhuangmetropowersystemusescentralizedpowersupplymode,systemcontainsthetransmissionlinesbetweenareasubstationandrailtrafficmainsubstation,Tractionstep-downpowertransmissionanddistributionnetworkofrailtransportpowersupplysystem,DCtractionsupplynetworkandstationlowvoltagedistributionnetwork;tractivepowersupplysystemiscomposedofmainsubstation,high-pressure/mediumvoltagepowersupplynetwork,tractivepowersupplysystem,electricpowermonitoringandmanagementsystem,overheadcontactsystem,straycurrentprotectionandgroundingsystem,Powersupplyworkshopandsoon.Themainfunctionofrailtransportpowersupplysystemisinthebelow:Accept,distributionofthemainsubstationpower:maintransformerwillconverttoa20KV110kvhigh-voltagepowersupplynetworkin20KVpiezoelectric,energyallocatedtoeachstationandmaximizethetractionsubstationandstep-downinsubstation.Keywords:entralizedpowersupplysystemtractionsubstationDC1500Vcontactrail20kVmediumvoltage目录第1章绪论.....................................................................................................41.1供电系统的功能...................................................................................41.2供电系统的构成...................................................................................51.3供电系统电磁兼容...............................................................................6第2章电源与主变电所..................................................................................72.1电源.......................................................................................................72.2主变电所...............................................................................................92.3中压供电网路....................................................................................10第3章牵引供电系统.....................................................................................113.1牵引供电运行方式.............................................................................113.2牵引供电系统保护.............................................................................143.3牵引变电所.........................................................................................183.4牵引网.................................................................................................21第4章杂散电流............................................................................................224.1概述..........
