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1、Proc.ofthe5thWSEAS/IASMEInt.Conf.onElectricPowerSystems,HighVoltages,ElectricMachines,Tenerife,Spain,December16-18,2005(pp614-618)VoltagedipmodelinPSS/EP.LEDESMAandC.GALLARDOElectricEngineeringDepartmentUniversidadCarlosIIIdeMadridButarque15,28911Legan´esSPAINAbstr
2、actThispapershowsindetailamodelofavoltagedipinthepowersystemdynamicsimulationtoolPSS/E.ThemodelledvoltagedipcorrespondstoaspecificationpublishedbytheSpanishSystemOperatorRedEl´ectricadeEspa˜na.Dynamicsimulationsinvolvingthisvoltagedipareinterestingforwindenergyprodu
3、cersbecauseanywindfarminSpainwhichisabletoremainconnectedandstableaftersuchadipwillreceiveaneconomicrevenue.Thesourcecodeofthemodelisshownandcommented.Resultsofasimulationinvolvingthevoltagedipandafixed-speedwindmillareshowninordertoillustratetheperformanceofthemode
4、l.Key-WordsVoltagedip,transientstability,powersystemdynamics,windenergyI.INTRODUCTIONwindfarmstoremainconnectedafteravoltagedip[2].INDpowerinstalledintheSpanishpeninsula,ThisdipisdefinedasavoltagedecayfollowedbyaWwhichhasbeengrowingcontinuouslyoverthevoltagerecovery
5、intworampswithdifferentslope.Windlastdecade,reached8.2GWattheendof2004[1].installationswhichremainconnectedaftersuchadipwillThisisasignificantamountofinstalledcapacity,takingobtainaneconomicprime.intoaccountthatthemaximumdemandatthesameareaThepublicationofthevoltage
6、diphaspromptedandthesameyearwas37.7GW.Thus,dependingonwindmillmanufacturestoperformtestandsimulationstheweatherandthepowerdemand,alargepercentageontheirmachines,inordertoknowiftheirwindmillsofenergymaybeproducedbywindfarms.Thissituationwillremainconnectedaftersuchv
7、oltagedip,andtotakeismorelikelytohappenatwindynights,whentheloadtheappropriatemeasuresifthisisnotthecase.Inorderislowandthewindpowerproductionishigh.toperformthesesimulations,itisnecessarytomodeltheAsaresultoftheincreaseinwindpowerproduction,voltagedipinsoftwaretoo
8、lssuitableforpowersystemconcernhasarisenabouttheeffectofvoltagedipsonanalysis.OneofthesetoolsisPSS/EfromPTI,whichisthetransmissiongrid.Thesevolta
