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1、1796IEEETRANSACTIONSONPOWERDELIVERY,VOL.25,NO.3,JULY2010InterfacingTechniquesforTime-DomainandFrequency-DomainSimulationMethodsIEEETaskForceonInterfacingTechniquesforSimulationToolsJosedeJesusChavez,AbnerI.Ramirez,VenkataDinavahi,RezaIravani,JuanA.Martinez,
2、JuriJatskevich,andGaryW.ChangAbstract—Thispaperreviewsdifferentmethodologiesforinter-methodsforaccurateandefficientsimulationofpowersystemfacingtime-domainandfrequency-domainsimulationprograms.networks.Themainobjectiveforthisinterfaceistoobtainthesteady-stat
3、eTheoreticallyitisnotpossibletointerfaceTDandFDduetoortransientstateofapowernetworkcontaininglinearandnon-thedifferencesmentionedabove.However,themodelingofalinearloads,andthecalculationofthecorrespondingharmonicsandtheforegoingvaluesfordifferenttypesofanal
4、ysesinpowersystemviaitsdecompositionintoexternalandinternal(study)systems.zones,enablessuchinterfacingpossiblethroughatransmissionlineusedasalinkbetweentheTDandFDparts.IndexTerms—Frequency-domainanalysis,harmonicanalysis,interfacing,powersystemsimulation,ti
5、me-domainanalysis.ToobtainanefficienthybridprocedureitisrecommendedthatthespecificcharacteristicsofTDandFDbeconsideredtodecidethepartsofthesimulationthatshouldbeconductedinI.INTRODUCTIONFD,orTD.Thetheoryofwavelets,combinedwithFouriertransformandthedynamicharm
6、onicdomain(DHD)providealternativetech-OWERsystemnetworkscanbecomputationallysolvedniquestodealwiththetimeandthefrequencydomainssimul-Pbasedontime-domain(TD)andfrequency-domain(FD)taneously.Thesetechniquesalsohavebeenappliedforthede-methods.Theformerisprefer
7、redincaseswhereswitchingde-terminationofharmonicsinthetransientstate.vicesandnonlinearelementsaretobeconsidered.ThelatterisThispaperisintendedtopresentasummaryoftechniquesadoptedasastandardmethodincaseswherethefrequencyde-whereTDandFDareusedsimultaneouslywi
8、thinthesamependenceoftheelectricalelementsisimportant,orwhenonlysolutionalgorithm.Thetechniquesintheliteratureforinter-(frequency)datameasurementsareavailable.Moreover,there-facingTDandFDalgorithmscanb
