IEC TR 61000-3-18-2024.docx

IECIECTR61000-3-18Edition1.02024-02TECHNICA1.REPORTco1.ourinsideE1.ectromagneticcompatibi1.ity(EMC)-Part3-18:1.imits-Assessmentofnetworkcharacteristicsfortheapp1.icationofharmonicemission1.imits-Equipmentconnectedto1.VdistributionsystemsnotcoveredbyIEC61000-3-2andIEC61000-3-12THISPUB1.ICATIONISCOPYRIGHTPROTECTEDCoPyright©2024IEC1Geneva,Switzer1.andAJ1.rightsreserved.UnteesO1.herWigespecified,nopartofthisPUb1.iCabonmaybereproducedoruti1.izedinanyformOfAanymeans,e1.ectronicormeca11<ca1.,inc1.udingpoxx>opyigandmcro1.m,WAhOSpermissioninwntngfromeitherIECofIECmemberNationa1.Committeeinthecountryoftherequester.IfycuhaveanyquestionsaboutIECcopyrighthaveanenquiryaboutOb1.aningancona1.rightStothsPUbtCagn.pte-ascontacttheaddressM11oryour1.oca1.IECmc11crNatKXI霖COmn1.inC«f<xfurtheri11formatkx.IECSeaeiariaiTd.:412291902113.ruedeVarembe,M<*cchCH-1211Geneva20*ww.iec.chSWtZedBndAbouttheIECTheInternabona1.tectrotech11>ca1.Commtsskxi(IEC)isth©1.eadinggot>a1.organizationthatpreparesandpunishes1.n½f11abona1.Standards1.ota1.1.e1.ectricai.Gectronicandre1.atedIechnoksgies.AboutIECpub1.icationsThetechnica1.contortdIECpub1.ications»$keptunderconstantreviewbyIbCIECP1.cascmakesurothatyouhavethe1.atestedition,a<xrendumoranamendmentfnhthavebeenpuUed.IECpub1.icationssearchwcbstorc.icc.chadvscarchformTheadvancedsearchenab1.estofindIECpub1.icationst>yaIafteCyotcriteria(referencenumber,texttechnica1.oommitt<jo.1.Kateogivesinformabo11onprojects,rep1.acedarriw!hdrav,npub1.ications.IECJustPub1.ished-webstore.iec.ch,Justpub1.tshedStayuptodaU?onoi1.nowIECPUbhaItiOns.JUStPuMshodde1.atea1.1.newpub1.>cat3reteased.Avai1.ab1.eon1.ineandCnCeamonthbyemai1.IECCustomerServiceCentre-webstore.1.ec.chescIfyouwhtogrveuyourfeedbackonthispub1.icationorneedfurtherasstsia11,p1.easecontacttheCustomerServiceCnure.sates©»ec.ch.IECProducts&ServicesPor1.a1.products.icc.chDiscoverourPCWCrfU1.sarcengineandrc<×Jfree1.ya1.1.thePubMa1.ton§previews,graphica1.symbo1.sandthegrossary.Wi1.hasubscriptionyouw1.a1.wayshaveacoo&$IopIodatecontentIatocedk>yourneeds.E1.ec1.ropcdui-www.c1.cc1ropcdia.orgIhexx1(fseadngon1.inedcoaryone1.ectrotechno1.ogy,containingmorethan22500termrioksgicaientriesinEngishandFrench.Wi1.heoutvtfe1.terms25addf1.kxa1.1.anguages.AJsoknownastheInternationa1.Ekjcirotcchnica1.VocabUary(IEV)on1.ne.IECIECTR61000-3-18Edition1.02024-02TECHNICA1.REPORTco1.ourinsideE1.ectromagneticcompatibi1.ity(EMC)-Part3-18:1.imits-Assessmentofnetworkcharacteristicsfortheapp1.icationofharmonicemission1.imits-Equipmentconnectedto1.VdistributionsystemsnotcoveredbyIEC61000-3-2andIEC61000-3-12INTERNATIONA1.E1.ECTROTECHNICA1.COMMISSIONCS33.100.10ISBN97823222199Warning!Makesurethatyouobtainedthispub1.icationfromanauthorizeddistributor.®ftVgvrtrMMw<n,>rfC<>5ifwcnCONTENTSFOREWORD4INTRODUCTION61 Scope72 Normativereferences73 Terms.M1.irU1.iOnSandabbreviatedterms73.1 Termsanddefinitions.832Abbreviatedterms104 Genera1.105 StateofexistingIECstandards125.1 OvervewoferstigStanda心125.2 Vo1.tagegaps125.3 Frequencygaps135.4 Systemimpedancensk5era!ions136 Genera1.approach147 Detai1.edimptementationofthemethodo1.ogy157.1 Overview.1512Europeanreferenceetorkmode1.(RNM)151.1.1 History151.1.2 AcustcdRNMIorassessingharmonicsensitivity167.3 Harmoniccurrentmode1.187.4 Methodo1.ogyforadaptingIECequipmentharmonicemission1.imits207.4.1 Genera1.20742Conversionfactor(Cfh)217 5Sensitivityratio5R228 Simu1.abonconsiderations22182Simu1.ationmode1.adjustr>ont2383Studieswithon1.ythemaximumharmonic(fcsto11iono<eachfc<Jer-2384Samp1.ingthefeedersofthoentirepowersystem249 Statistica1.ana1.ysis2410 Conc1.usions25AnnexAQM(XmaIiVC)Othermethodsstudiedtormparingfeederhar11>onicsensitivity27A1Genera1.27ANVo1.tagedrcop27AZ1.Exp1.anation27A22Voitagedroopsimu1.ation27A23Conccp(ofthovo1.tagedroopapproach28A24Vabdationofthevo1.tagedroopmethod29A25C1.ustering30A26Feederparameters33AnnexB(informative)PovrerdistributionsystemsinCanada368.1 Overview.368.2 Conversionfactor37Annex C (itormatfve)POwerdistributionsystemsanJapan40C.1BackgroundforharmonicsSmits40C.2Ou1.k)okonatypica1.distributionsysteminJapan40C.3Powersupp1.ytocustomersinJapan42C.4DistributionsystemimpedanceinJapan42C.5Casestudyof95thpercentsandconversionfactorinJapan43C.6Comparingthe95thpercenti1.edistortion1.veOiJapanvs.EURNM43Annex D (iformatcve)Examp1.eofaPythonscriptusedwithCYMDSTsoftware46Bib1.iography57Figure1-Referencenetworkmedwmvo1.tag©powersystem17Figure2-1.Vnetworkof153customerssupp1.iedbya400kVAtransformer17FigureA1.-ScatterpAotofvo1.tageharmonicIeve4s(3rdand51.h)asfunctionofthevo1.tagedrp28FigureA.2-Compansonofthe95thpercenti1.eharmonicIeVeiSobtainedfromsimu1.ationandca1.cu1.atedfromthevo1.