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1、IECIECTR61000-3-18Edition1.02024-02TECHNICA1.REPORTco1.ourinsideE1.ectromagneticcompatibi1.ity(EMC)-Part3-18:1.imits-Assessmentofnetworkcharacteristicsfortheapp1.icationofharmonicemission1.imits-Equipmentconnectedto1.VdistributionsystemsnotcoveredbyIEC61000-3-2andIEC61000-3-12THISPUB1.ICATIONISCOPYR
2、IGHTPROTECTEDCoPyright2024IEC1Geneva,Switzer1.andAJ1.rightsreserved.UnteesO1.herWigespecified,nopartofthisPUb1.iCabonmaybereproducedoruti1.izedinanyformOfAanymeans,e1.ectronicormeca11opyigandmcro1.m,WAhOSpermissioninwntngfromeitherIECofIECmemberNationa1.Committeeinthecountryoftherequester.Ifycuhavea
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4、ndards1.ota1.1.e1.ectricai.Gectronicandre1.atedIechnoksgies.AboutIECpub1.icationsThetechnica1.contortdIECpub1.ications$keptunderconstantreviewbyIbCIECP1.cascmakesurothatyouhavethe1.atestedition,ayaIafteCyotcriteria(referencenumber,texttechnica1.oommittcat3reteased.Avai1.ab1.eon1.ineandCnCeamonthbyem
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6、ngon1.inedcoaryone1.ectrotechno1.ogy,containingmorethan22500termrioksgicaientriesinEngishandFrench.Wi1.heoutvtfe1.terms25addf1.kxa1.1.anguages.AJsoknownastheInternationa1.Ekjcirotcchnica1.VocabUary(IEV)on1.ne.IECIECTR61000-3-18Edition1.02024-02TECHNICA1.REPORTco1.ourinsideE1.ectromagneticcompatibi1.
7、ity(EMC)-Part3-18:1.imits-Assessmentofnetworkcharacteristicsfortheapp1.icationofharmonicemission1.imits-Equipmentconnectedto1.VdistributionsystemsnotcoveredbyIEC61000-3-2andIEC61000-3-12INTERNATIONA1.E1.ECTROTECHNICA1.COMMISSIONCS33.100.10ISBN97823222199Warning!Makesurethatyouobtainedthispub1.icatio
8、nfromanauthorizeddistributor.ftVgvrtrMMwrfC5ifwcnCONTENTSFOREWORD4INTRODUCTION61 Scope72 Normativereferences73 Terms.M1.irU1.iOnSandabbreviatedterms73.1 Termsanddefinitions.832Abbreviatedterms104 Genera1.105 StateofexistingIECstandards125.1 OvervewoferstigStanda心125.2 Vo1.tagegaps125.3 Frequencygaps
9、135.4 Systemimpedancensk5era!ions136 Genera1.approach147 Detai1.edimptementationofthemethodo1.ogy157.1 Overview.1512Europeanreferenceetorkmode1.(RNM)151.1.1 History151.1.2 AcustcdRNMIorassessingharmonicsensitivity167.3 Harmoniccurrentmode1.187.4 Methodo1.ogyforadaptingIECequipmentharmonicemission1.i
10、mits207.4.1 Genera1.20742Conversionfactor(Cfh)217 5Sensitivityratio5R228 Simu1.abonconsiderations22182Simu1.ationmode1.adjustront2383Studieswithon1.ythemaximumharmonic(fcsto11ionoeachfconicsensitivity27A1Genera1.27ANVo1.tagedrcop27AZ1.Exp1.anation27A22Voitagedroopsimu1.ation27A23Conccp(ofthovo1.tage
11、droopapproach28A24Vabdationofthevo1.tagedroopmethod29A25C1.ustering30A26Feederparameters33AnnexB(informative)PovrerdistributionsystemsinCanada368.1 Overview.368.2 Conversionfactor37Annex C (itormatfve)POwerdistributionsystemsanJapan40C.1BackgroundforharmonicsSmits40C.2Ou1.k)okonatypica1.distribution
12、systeminJapan40C.3Powersupp1.ytocustomersinJapan42C.4DistributionsystemimpedanceinJapan42C.5Casestudyof95thpercentsandconversionfactorinJapan43C.6Comparingthe95thpercenti1.edistortion1.veOiJapanvs.EURNM43Annex D (iformatcve)Examp1.eofaPythonscriptusedwithCYMDSTsoftware46Bib1.iography57Figure1-Referencenetworkmedwmvo1.tagpowersystem17Figure2-1.Vnetworkof153customerssupp1.iedbya400kVAtransformer17FigureA1.-ScatterpAotofvo1.tageharmonicIeve4s(3rdand51.h)asfunctionofthevo1.tagedrp28FigureA.2-Compansonofthe95thpercenti1.eharmonicIeVeiSobtainedfromsimu1.ationandca1.cu1.atedfromthevo1.
