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1、ModifiedTakagi-SugenoFuzzyLogicBasedControllersforaStaticCompensatorinaMultimachinePowerSystemSalmanMohagheghi,RonaldG.Harley*GaneshK.VenayagamoorthySchoolofElectricalandComputerEngineeringDepartmentofElectricalandComputerEngineeringGeorgiaInstituteofTe
2、chnologyUniversityofMissouri-RollaAtlantaGA30332-0250USAMO65409-0249USArharley@ece.gatech.edugkumar@ieee.org*EmeritusProfessor,UniversityofKwa-ZuluNatal,Durban,SouthAfricaAbstract-Takagi-Sugeno(TS)basedfuzzylogiccontrollersThedrawbackofsuchPIcontrollers
3、isthattheirhavebeendesignedforcontrollingaSTATCOMinaparametersaremostlytunedbasedonatrialanderrormultimachinepowersystem.Suchcontrollersdonotneedapproach.Moreover,theirperformancedegradesastheanypriorknowledgeoftheplanttobecontrolledandcansystemoperatin
4、gconditionschange.NonlinearadaptiveefficientlycontrolaSTATCOMduringdifferentdisturbancescontrollersontheotherhandcangivegoodcontrolinthenetwork.TwodifferentapproachesfortheTSfuzzycapabilityoverawiderangeofoperatingconditions,butlogiccontrollerarepropose
5、d:aconventionalTSfuzzylogicdesignandamodifiedTSfuzzylogicdesignbasedontheyhaveamoresophisticatedstructureandaremoreshrinkingspanmembershipfunctions.Simulationresults,difficulttoimplementcomparedtolinearcontrollers.Inalongwithacomparisonoftheconventional
6、TSfuzzylogicaddition,theyneedamathematicalmodelofthesystemtocontrollerperformancewiththatoftheproposedcontrollerbecontrolled[5]-[7].arepresented.Fuzzylogiccontrollersoffersolutionstothisproblem.Keywords-Takagi-Sugenofuzzylogiccontroller;shrinkingTheyare
7、nonlinearcontrollersandneednopriorplantspanfuzzymembershipfunctions;StaticCompensator;information.Moreover,theycanprovideefficientcontrolmultimachinepowersystem.overawiderangeofsystemoperatingconditions.ConventionalfuzzylogiccontrollershavebeenwidelyI.I
8、NTRODUCTIONappliedinpowersystems[8]-[11].StaticCompensators(STATCOMs)arepowerThispaperdesignsaconventionalandtwomodifiedelectronicbasedshuntFlexibleACTransmissionSystemTakagi-Sugenofuzzylogicbasedcontrollersfora(FACTS)deviceswhic
