牵引网故障数字仿真系统

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1、西南交通大学研究生学位论文牵引网故障数字仿真系统年级三QQ四堑姓名互璇霞申请学位级别工堂亟±专业皇力丕缝盈基自动丝指导教师直丝堑熬攮二oo七年一月西南交通大学硕士研究生论文第1I页AbstractRealTimeDigitalSimulators(RTDS)havebeellappliedtotestingfieldsofrelay-protectionequipmentsforelectricpowersystemandcontrol＆protectionforHVDCsystem,whoseauthoritiesoftestingresultsh

2、avebeenappmvaledbyelectricpowertrade．Becauseofthelackofeffectivedynamicsimulationtestingtoolofelectrifledrailwayrelay-protectionequipmentsinourcountry,inordertoimprovethereliabilityofelectrifiedrailwayrelay-protectionequit：lmentsandbuildtheelectrifiedrailwaytradetestingstandard

3、ofrelay-protectionequipments,itbecomesanewtrialinthefieldofelectrifiedrailwayrelay-protectionequipmentstestingbythewayofinbuildingtractionpowersystemsimulationmodelsontheflatoflUDSwhichCallbeusedtoresearchthedynamicsimulationofelectrifiedrailwayrelay-protectionequipments．Aimeda

4、tthedifferencebetweenelectricpowersystemACandDCnetworkandelectrifiedrailwaynetwork,componentmodellibrarysuitableforelectrifiedrailwayrelay-protectionequif'mentstestingisuser-definedonthebaseofwhich．electrifledrailwaynetworkmodelisconstructedapplicableforthere∞amhoftractionpower

5、systemdynamicsimulationwhichisimportanttoresearchonnewprincipleofrelay．protection,shortendresearch&developmentperiodandimprovethesyntheticalperformanceofprotectionequipments．SimulationmodelsoftractionpowersubstationsimulationsystemareabstractedSOast0defineuser-definedcomponentm

6、odelslibraryontheplatofmS．modelssuchastractiontransformer,over-heMcontactsystem,tractionsupplymodeandfaultarerealised．OntheprototypeofBeijing-Ti面inDedicatedPassengerLine，introducingtheabstractionmethodofsystemprototypeandparameterdefiningmethodofcomponentmodels．Thesimulationtes

7、tingofcomponentmodeIsindicatesthatuser-definedcomponentmodelsareaccurateenoughtobeusedtotractionpowersystemdynamicsimulation．Onthebaseofcomponentmodellibrary,adynamicsimulationsystemofAll-parallelATtractionpowersystemisconstructed．Theshort-circuittestoftheconstructedsystemmodel

8、indicatesthatsystemmodelconstructedbyuser-definedcompo