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1、376IEEETransactionsonPowerSystems,Vol.11,No.1,February1996EMULTIRATESIMULATIONOFFACTSDEVICESINPOWERSYSTEMDYNAMICSM.L.Crow(SeniorMember)andJ.G.Chen(Member)DepartmentofElectricalEngineeringUniversityofMissouri-RollaRolla,MO65401AbstractInthispaper,themultiratemethodisappliediotheprob-contr
2、olleddevices.Usuallyonlyasmallportionofthelemofsimulatingthedynamicsofapowersystemwhichsystemisfistedbythefastdynamicsofthesedevices,containsfastcomponentssuchabinductionmachineloadsyettheintegrationtimestepoftheentiresystemmustandFACTSdevices.Resultsconcerningfhenumericalsta-remainsmall
3、inordertocapturethefastdynamics,thusbilityandaccuracyofthemultiratemethodarepresented.computationalefficiencyislost.ImplementationconcernaarealsoaddressedbystudyingThispaperwilldiscusstheuseofthemultiratemethod,anezamplepowersystemwhichcontainsawiderangeoffirstproposedin[2],forthesimulat
4、ionofpowersystemtameresponsebehavior.dynamics.Thepotentialofmultiratemethodsforana-KeyWords:Powersystemdynamics,computersimula-lyzingpowersystemdynamicswasfirstreportedin[3],tion,multiratemethods.andfurtherdevelopmentswillbediscussedinthispa-per.First,thepossibilityofn-timescalesisexplor
5、ed,ratherthansimplytwotimescales.Second,allintegra-1Introductiontionmethodsareimplicit,ratherthandifferentiatingbe-tweenimplicitmethodsforfasttimescalesandexplicitAtthe1994SummerMeetingofthePowerEngineeringmethodsfortheslowtimescales.Lastly,theproblemofSocietyoftheInstituteofElectricalan
6、dElectronicsEn-incorporatingsystemsofdifferential/algebraicequationsgineers(IEEE),theWorkingGrouponDynamicSecu-isaddressed.Specifically,thispaperwillexploretheaprityAssessmentoutlinedtherequirementsofanon-lineplicationofthemultiratemethodsforthesimulationofdynamicsecurityassessmentapplic
7、ation[I].Itisfore-differential/algebraicpowersystemmodelscontainingfastcastedthatatypicaldynamicsecurityassessmentappli-switchingFACTSdevicesandinductionmachineloads.cationwillrequireatime-domainsimulation(TDS)of30possiblecontingenciesevery20-30minutes.Eachofthesecontinge
