第47卷第4期电网技术Vol.47No.42023年4月PowerSystemTechnologyApr.2023文章编号：1000-3673（2023）04-1490-10中图分类号：TM721文献标志码：A学科代码：470·40柔性直流输电系统的桥臂功率解析雷顺广1，束洪春2，李志民1，田鑫萃2，王广雪2（1．哈尔滨工业大学电气工程及自动化学院，黑龙江省哈尔滨150001；2．昆明理工大学电力工程学院，云南省昆明市650051）BridgeArmPowerAnalysisofFlexibleHVDCTransmissionSystemLEIShunguang1,SHUHongchun2,LIZhimin1,TIANXincui2,WANGGuangxue2(1.SchoolofElectricalEngineeringandAutomation,HarbinInstituteofTechnology,Harbin150001,HeilongjiangProvince,China;2.FacultyofElectricPowerEngineering,KunmingUniversityofScienceandTechnology,Kunming650051,YunnanProvince,China)ABSTRACT:ThispaperanalyzesthefaultsoftheflexibleHVDCtransmissionsystemfromtheenergytransferringperspective,uponwhichanewfaultanalysismethodbasedonthearmbridgepoweroftheflexibleHVDCtransmissionsystemisproposed,whichprovidesthebasisfortheanalysisandsolutionofACfaults,DClinefaults,andtransientenergybalancecontrolinflexibleDCtransmissionsystems.Firstly,anequivalentcircuitforACsystemfaultsisestablished,andtheanalyticalexpressionsforarmbridgepowerunderACsingle-phasefaults,phase-phaseshort-circuitfaults,andthree-phaseshort-circuitfaultsarederivedusingthesymmetriccomponentmethod.Meanwhile,thevariationcharacteristicsofbridgearmpowerunderACfaultsareanalyzed.Then,fromtheenergytransferringpointofview,aDCfaultequivalentcircuitisestablished,basedonwhichtheanalyticalexpressionsforthearmbridgepowerunderDClinefaultsarederivedandthechangingcharacteristicsofthearmbridgepowerunderDCfaultsareanalyzed.Finally,aflexibleDCtransmissionsystemisestablishedonthePSCAD/EMTDCsimulationplatform,andtheanalyticalresultsarecomparedwithsimulationresultstoverifytheaccuracyandreliabilityoftheproposedanalyticalmethod.KEYWORDS:flexibleHVDCtransmission;faultcircuitequivalent;faultsanalysis;armbridgepoweranalysis;armbridgepowercharacteristics摘要：该文从能量传递角度对柔性直流输电系统故障进行解析，提出了基于换流阀桥臂功率的柔性直流输电系统故...
