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1、1EvaluationstudyfortheSimulationofPowerSystemTransientsusingDynamicPhasorModelsT.Demiray,G.AnderssonandL.BusarelloAbstract—InthispaperthedynamicphasorapproachwillbepowerelectronicbasedequipmenthasbeentreatedindetailusedforthesimulationoftheIEEE39-busbenchmarktestcasein[
2、5],whereafundamentalphasorTCSCmodelhasbeenfordynamicstudies.Thedynamicphasorapproachprovidesderivedbyselectingfirst,thirdandfifthFouriercoefficientsmoreaccuratemodelsthanthequasi-stationaryonesand,attheasanappropriateapproximationforthecapacitorvoltage.Insametime,iscomputa
3、tionallymoreefficientthandetailedEMTPmodels.Resultsarecomparedwithstandardelectromechanical[6],asystematiccomparisonbetweenmostlyusedmodelingandelectromagneticalmodels.techniques(ABCandDQ0)andthephasordynamicsapproachhasbeenmade.IndexTerms—Simulation,PowerSystemTransient
4、s,Dynamicphasorapproach,unbalancedconditionsInthesepapers,sincethedynamicphasorsapproachwasmainlyusedtomodelthesecomponentsandtostudytheirbe-havior,smallsizedtestsystems,e.g.SingleMachineInfinite-I.INTRODUCTIONBus(SMIB),havebeenused.However,effortshavenotbeenorthesimulat
5、ionofmixedelectromagneticandelec-madetoimplementanewtypeofpowersystemsimulatorFtromechanicaltransientsinpowersystems,varioussystemwhichbasedonthedynamicphasorrepresentationofthevariablerepresentationsareused.Theelectromagnetictran-wholepowersystemandalsosimulatelargepow
6、ersystemssientsprogramsoftenusetheinstantaneousvaluerepresenta-withthedynamicphasorsapproach.In[6],aMATLABbasedtionofsystemvariablesandsystemequationsintheoriginalversionofthissimulatorwasreported.Theaimofthispaperthreephases[1].Simulationsintheoriginalthreephasesareist
7、osimulatetheIEEE39-bustestsystemfordynamicstudiesaccuratebutinefficientduetothepresenceofACquantitieswiththedynamicphasormodelsandcomparetheiraccuracyevenatsteadystateconditionsandcomputationalperformance.Someproductiongradeprograms(e.g.SIMPOW[2]),preferThepaperwillbeorg
8、anizedasfollows.FirsttheoutlinestousetheDQ0referenceframemodelsfordetailedtimedo-ofthedynamicphasorsapproachwi
