_220kV变电站电晕噪声抑制技术研究和应用

1674-0629201503-0035-06TM851ADOI10.13648/j.cnki.issn1674-0629.2015.03.007220kV510080。、ANSYS220kV。、。3000V/mm。。220kVResearchandApplicationofCoronaNoiseSuppressionTechnologyfor220kVSubstationWANGSongCHENGJianweiZHANGXiLIRuihaiLIMinLIBinElectricPowerResearchInstituteCSGGuangzhou510080ChinaAbstractResidents'livingconditionandprojectenvironmentevaluationareaffectedgreatlybynoiseandelectromagneticpollutioncausedbysubstationcornadischargewhichmustbesuppressed.Accordingtotheactuallayoutandstructuraldrawingsofrelatede-quipmentandfittingstakingmeasuredresultsofsubstationcornadischargeasreferenceandconsideringtheeffectsofthreephasesandsurroundingconductorsanelectricfieldfiniteelementsimulationmodelfor220kVsubstations'typicaldischargepositionsisbuiltbythefiniteelementmethodFEMsoftwareANSYS.Themaximumsurfaceelectricfieldmagnitudesofthefittingsarecalculatedthesurfaceelectricfielddistributionconditionsareobtainedthestructureofthosecoronafittingsisoptimizedbasedonthecalculationresultsandcoronanoisesuppressionmeasuresareputforward.Theresultsshowthatafterstructureoptimizationthedistortionofelec-tricfielddistributionofthefittingsisdeclinedgreatlyandthemaximumsurfaceelectricfieldmagnitudesarereducedtolessthan3000V/mm.Thisresearchprovidesimportantreferenceforpreventionofcoronaandreductionofsubstationnoiseandsuppliesbasisforconstructionofgreengridandsubstation．Keywordscoronanoisesuppressionelectromagneticenvironment220kVsubstationelectricfieldsimulation01。220kV500kV。。2－3。。。220kVANSYS1∶12015932015Vol.9No.3SOUTHERNPOWERSYSTEMTECHNOLOGYHighVoltageandInsulation。11.1、4。240～400nm。300～400nm300nm。3。OfilSuperbSuperb1005。1001000。1.2Superb220kV。220kV、、。1.2.1。10060001。1Superb。。1Fig.1CoronadischargeultravioletImagesofpostInsulators。。1.2.2。100100002。2Fig.2CoronadischargeultravioletImagesofbusconnections。。1.2.3。100639150003。3Fig.3CoronadischargeultravioletImagesoflittlejumpers。。2。ANSYS6－8。ANSYS220kV。3000V/mm9。2.14。。。－1/2。4Fig.4ElectricfieldsimulationmodelsofpostInsulators220×1.1÷槡3×槡2≈197.568kV1－197.568/2=－98.784kV20kV。6。5。5Fig.5ElectricfieldsimulationresultsofpostInsulators、、3000V/mm。2.2。36733220kV。197.568kV－98.784kV0kV7。ab6Fig.6Electricfieldsimulationmodelsofbusconnections7Fig.7Electricfieldsimulationresultsofbusconnections。4000V/mm。2.3220kV。、、8。ab8Fig.8Electricfieldsimulationmodelsoflittlejumpers9。9Fig.9Electricfieldsimulationresultsoflittlejumpers4500V/mm5000V/mm。3839、、、10－13。3.110。D1d1h1。ab10Fig.10Optimumproposalandelectricfieldsimulationresultsofpostinsulators3000V/mm2000V/mm2365V/mm。3.28、11。D2h2L1L2d2r2。4000V/mm2500V/mm2600V/mm。ab11Fig.11Optimumproposalandsimulationresultsofbusconnections3.3。。12。12Fig.12Electricfieldsimulationresultsofoptimizedlittlejumpers933220kV。3.41。3000V/mm。。1Tab.1Electricfieldcomparisonofkeypositionbeforeandafteroptimization/V·mm－1/V·mm－1＞3000＜2000－2365＞4000250030002300－2600＞5000－4500－4220kVANSYS。1220kV、、。2。3、3000V/mm5000V/mm。4、3000V/mm。1Q/GDW551—2010S．2.J．2010361109－115．WANBaoquanXIEHuichunFANLiangetal.Electromag-neticenvironmentandcoronacontrolmeasuresofUHVsubsta-tionJ．HighVoltageEngineering2010361109－115．3JIANWEICZONGRENPHAOHUIC.Researchonthegri-dingringconfigurationof±800kVultra-high-voltageDCswitchyardpostinsulatorsC//2012Asia-PacificPowerandEn-ergyEngineeringConferenceAPPEEC2012Shanghai2012325－328．4.J2012481259－64．YANGNingWUXutaoBIJiangangetal.Experimentalre-searchofinfluencefactorsindetectingcoronadischargebyUVimagingmethodJ．HighVoltageApparatus2012481259－64．5.J．20095831779－1784．6.M．2013．7.J201375114－118．LIRufengWANGChengjiangHUShuaietal.Theimpactoftheshedsrootthicknessandinclinationsizeofcompositeinsula-toronfieldintensitydistributionJ．SouthernPowerSystemTechnology201375114－118．8.M．1987．9.M．2007．10.M．1998．11.500kVJ．20103671779－1784．XIETianxiMOJuanPENGZongrenCoronasuppressionofgradingringsonsuspensioncompositeinsulatorson500kVcom-pacttransmissionlineJ．HighVoltageApparatus20103671779－1784．12.1000kVD．2011．13.±800kVJ．20082447－50．WANBaoquanRAOHongWUXiongetal.Studyontubu-larbusbarcoronacharacteristicsandoptimizationof±800kVYun-GuangHVDCprojectJ．SouthernPowerSystemTech-nology.20082447－50．2014-11-151983、[e-mail]1984、[e-mail][e-mail]。049