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1、LOADFREQUENCYCONTROLOFMULTIPLE-AREAPOWERSYSTEMSYAOZHANGBachelorofElectricalEngineeringTsinghuaUniversityJuly,2007submittedinpartialfulfillmentofrequirementsforthedegreeMASTEROFSCIENCEINELECTRICALENGINEERINGattheCLEVELANDSTATEUNIVERSITYAugust,2009?CopyrightbyYaoZhang20
2、09ThisthesishasbeenapprovedfortheDepartmentofElectricalandComputerEngineeringandtheCollegeofGraduateStudiesby________________________________________________ThesisCommitteeChairperson,Dr.LiliDong________________________________Department/Date__________________________
3、______________________CommitteeMember,Dr.DanielSimon________________________________Department/Date________________________________________________CommitteeMember,Dr.ZhiqiangGao________________________________Department/Date____________________________________________
4、____CommitteeMember,Dr.F.EugenioVillaseca________________________________Department/DateTomybelovedparentsXuZhangandMingYaoandmyfiancéeYiXuACKNOWLEDGEMENTSDuringthetwo-yearresearchlifeinClevelandStateUniversity,IreceivedagreatdealofselflesslyhelpfromalotofpeoplethatIw
5、ouldliketosaythanksto.Firstofall,Iwouldliketothankmyadvisor,Dr.LiliDong,forherdirections,guidance,andsupport.Herenthusiasmandinspirationlightenedtheroadofcompletingthiswork.Iwouldalsoliketothankallthecommitteemembers,Dr.ZhiqiangGao,Dr.DanielSimonandDr.EugenioVillaseca
6、,forallthesuggestionsandguidance.IwouldliketothankmyofficemateKaiZhang,SiluYouandmycolleaguesGangTianandShuangWuforcreatingthefriendly,pleasantworkingatmosphereandthepatienthelp.Specialthanksgotothetwofamilies,Kai’sandHonglei’s,forhelpingmegothroughallthehardesttimes.
7、Lastly,andmostimportantly,IgivemysincereappreciationtomyparentsXuZhangandMingYaofortheirunconditionalsupportandmakingmeabetterperson.MydeepestgratitudegoestomybelovedfiancéeYiXuforherconstantloveandencouragement.LOADFREQUENCYCONTROLOFMULTIPLE-AREAPOWERSYSTEMSYAOZHANGA
8、BSTRACTInaninterconnectedpowersystem,asapowerloaddemandvariesrandomly,bothareafrequencyandtie-linepowerinterchangealsovary.T
