VALIDATION OF THE PSSE MODEL for the Gotland Network

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1、TheRoyalInstituteofTechnologyDepartmentofElectricalEngineeringElectricPowerEngineeringVALIDATIONOFTHEPSS/EMODELFORTHEGOTLANDNETWORKHRAGMARGOSSIANMasterThesisatKTHSupervisor:RobertErikssonExaminer:MehrdadGhandhariXR-EE-ES2010:008AbstractTheaimoftheprojectistorevisetheloadflowanddynamicPSS/Em

2、odelsoftheGotlandnetworkandvalidatethemagainstasetofmeasurementscollectedduringamajordisturbance,athreephaseshortcircuitinthe70kVsystem.Themaintaskinrevisingthemodelistoconverttheinductionmachinemodelsofthewindturbinesintouserandmanufacturerwindturbinemodels.Thevalidationofthemodelisdivided

3、intotwophases.Thefirstistousethemeasurementsaswellassomeassumptionsonthewindpowergenerationandloaddistributionfromthetimeofthefaulttovalidatethedynamicbehaviourofthesystem.Thesecondistousenewmeasurementsduringanormaloperationday.Thelatterwouldnotbeveryhelpfultoillustratethedynamicbehaviouro

4、fthesystem,becauseofthelackofamajorfaultthatwoulddrasticallyaffectthesystem,butitwouldneverthelessbeusefultovalidatetheloadflowwithgreateraccuracy.KeyWords:PSS/E,Gotland,Dynamicsimulationofpowersystem,modelvalidationAcknowledgementsIamverythankfultomysupervisoratKTH,RobertErikssonandmythesi

5、sexaminer,MehrdadGhandharifortheirconstantsupportandguidancethroughoutthespanofthisproject.ItisapleasuretothankmysupervisorsatVattenfall:UrbanAxelssonandDanielWall,whowentoutoftheirwaystohelpmeineverystepoftheprojectandwithoutwhomthisthesiswouldnothavebeenpossible.Iwouldalsoliketoshowmygrat

6、itudetoPer-OlofLindström,whoinmorethanoneoccasionhelpedmethroughsomedifficultsituationswithPSS/E,toallthepeopleworkingattheR&DdepartmentatVattenfallwhomadeworkingthereatrulyenjoyableexperienceandtoallthepeopleatGEABwhoprovidedmewithasmuchinformationastheycouldtomakethevalidationprocessasucc

7、ess.Finally,Iwouldliketodedicatethisthesistomyparentsandmysisterfortheirunconditionalloveandsupportwithoutwhichitwouldhavebeenimpossibleformetocomethisfar.HragTableofContents1INTRODUCTION11.1Background11.2ProjectOrganization11.3ProjectTasks11.4Introducti