Thesis - Damping power system osscillations using an SSSC-ba文稿

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1、DAMPINGPOWERSYSTEMOSCILLATIONSUSINGANSSSC-BASEDHYBRIDSERIESCAPACITIVECOMPENSATIONSCHEMEAThesisSubmittedtotheCollegeofGraduateStudiesandResearchinPartialFulfillmentoftheRequirementsFortheDegreeofMasterofScienceintheDepartmentofElectricalandComputerEngineeringUniversityofSaskatchewanSaskat

2、oon,SaskatchewanByIrfanUnal©CopyrightIrfanUnal,August2011.Allrightsreserved.PERMISSIONTOUSEIagreethattheLibrary,UniversityofSaskatchewan,maymakethisthesisfreelyavailableforinspection.Ifurtheragreethatpermissionforcopyingofthisthesisforscholarlypurposemaybegrantedbytheprofessororprofessor

3、swhosupervisedthethesisworkrecordedhereinor,intheirabsence,bytheHeadoftheDepartmentortheDeanoftheCollegeinwhichthethesisworkwasdone.ItisunderstoodthatduerecognitionwillbegiventomeandtotheUniversityofSaskatchewaninanyuseofthematerialinthisthesis.Copyingorpublicationoranyotheruseofthisthes

4、isforfinancialgainwithoutapprovalbytheUniversityofSaskatchewanandmywrittenpermissionisprohibited.Requestforpermissiontocopyortomakeanyotheruseofthematerialinthisthesisinwholeorpartshouldbeaddressedto:HeadoftheDepartmentofElectricalandComputerEngineering57CampusDriveUniversityofSaskatchew

5、anSaskatoon,SaskatchewanCanadaS7N5A9iABSTRACTInterconnectionofelectricpowersystemsisbecomingincreasinglywidespreadaspartofthepowerexchangebetweencountriesaswellasregionswithincountriesinmanypartsoftheworld.Therearenumerousexamplesofinterconnectionofremotelyseparatedregionswithinonecountr

6、y.SucharefoundintheNordiccountries,Argentina,andBrazil.IncasesoflongdistanceACtransmission,asininterconnectedpowersystems,carehastobetakenforsafeguardingofsynchronismaswellasstablesystemvoltages,particularlyinconjunctionwithsystemfaults.Withseriescompensation,bulkACpowertransmissionoverv

7、erylongdistances(over1000km)isarealitytoday.Theselongdistancepowertransferscause,however,thesystemlow-frequencyoscillationstobecomemorelightlydamped.Asaresult,manypowernetworkoperatorsaretakingstepstoaddsupplementarydampingdevicesintheirsystemstoimprovethesystemsecurityby