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1、第3卷第6期智能电网Vol.3No.62015年6月SmartGridJun.2015DOI：10.14171/j.2095-5944.sg.2015.06.012文章编号：2095-5944(2015)06-0542-10中图分类号：TM15文献标志码：A±800kV直流换流阀模块内部电场仿真对比分析111212张静岚，卢铁兵，齐磊，纪锋，崔翔，刘杰(1.高电压与电磁兼容北京市重点实验室(华北电力大学)，北京市昌平区102206；2.国网智能电网研究院，北京市昌平区102209)Electri
2、cFieldSimulationComparativeAnalysisoftheInternalValveModuleof±800kVHVDCConverterValve111212ZHANGJinglan,LUTiebing,QILei,JIFeng,CUIXiang,LIUJie(1.HighVoltageandEMCBeijingAreaMajorLaboratory(NorthChinaElectricPowerUniversity),ChangpingDistrict,Beijing1
3、02206,China;2.StateGridSmartGridResearchInstitute,ChangpingDistrict,Beijing102209,China)ABSTRACT:Theconceptofglobalenergyinternethasgainedwidespreadconcernbytheindustryforitsadvantagesofrenewability,distribution,interconnection,opennessandintelligenc
4、e.HVDCsystemsareanessentialelementofglobalenergyinternet.Thesurfaceelectricfieldcalculationofconductorsinhigh-potentialareainsidetheHVDCconvertervalveisthekeytoachieveoptimalinsulationundersmallmarginofsafety.InthepracticaloperationofHVDCpowertransmi
5、ssionproject,thetemperatureofDCequalizingresistanceonthecircuitboardinsidethe±800kVHVDCvalvetowerissohigh,thereforethecircuitinsidethevalvemoduleneedstobealtered.Inordertoobtaintheinternalinsulationreliabilityofvalvetoweraftercircuitalteration,athree
6、-dimensionalmodeloftheconvertervalvetowerisestablishedbySolidWorkssoftwareandcombinedwithsuccessivesub-modeltechnology,thesurfaceelectricfielddistributionofcapacitorsandradiatorsinsidethevalvemoduleiscalculatedbyusingANSYSfiniteelementsoftware.Thecom
7、parativeanalysisofelectricfielddistributionofvalvemodulebeforeandafteralterationismade.Thesimulationresultsshowthattheoverallelectricfielddistributionofvalvemoduleisrelativelyreasonable,andtheelectricfielddistributionofavalvelayermeetsthedesignrequir
8、ements.Intheend,theoptimizationsuggestionisproposedfortheelectricfieldweakness.KEYWORDS:HVDCconvertervalve;singlevalveDCwithstandvoltagetest;calculationofelectricfield;successivesub-model;optimizationdesignofinsulation摘要：全球能源互联网以其可再生、分布式、互联性、开放性和智能化等
