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1、SchoolofInformationTechnologyandElectricalEngineeringPowerSystemLoadModellingByWenZingAdelineChanTheSchoolofInformationTechnologyandElectricalEngineeringTheUniversityofQueenslandSubmittedforthedegreeofBachelorofEngineering(Honours)indivisionofElectricalEngineeringOctober2003th29October2
2、003GraceCollegeWalcottStreetSt.LuciaQueensland4067AustraliaProfessorSimonKaplanHeadofSchoolSchoolofInformationTechnologyandElectricalEngineeringUniversityofQueenslandSt.Lucia,Queensland4072DearSir,AspartialfulfilmentoftherequirementsfortheBachelorofEngineering(Electrical)Degree(Honours)
3、,Iherebysubmitforyourconsiderationsthisthesisentitled:“PowerSystemLoadModelling”Ideclarethattheworksubmittedinthisthesisistothebestofmyknowledgeandability,andanyworkthatisnotmyownhasbeenquotedandacknowledgedinthebibliography.ThisworkhasnotbeenpreviouslysubmittedforadegreeattheUniversity
4、ofQueenslandoranyotherinstitutes.Yourssincerely,WenZingAdelineChan(40193869)PowerSystemLoadModellingAcknowledgenentsACKNOWLEDGEMENTSFirstandforemost,Iwouldliketoexpressmysincerestappreciationtomythesissupervisor,Dr.Z.Y.Dong,forhispatienceandguidancethroughouttheentiredurationofmythesis.
5、Withouthissupervision,thisthesiswouldneverbeasuccess.Iwouldliketotakethisopportunitytoexpressmydeepestgratitudetomyfamilyfortheirsupportandencouragementtheyhaveprovidedmeovertheyears.Lastbutnotleast,Iwouldalsoliketothankallmyfriendswhohaveofferedmetheirunrelentingassistancethroughoutthe
6、course.-i-PowerSystemLoadModellingAbstractABSTRACTPowerSystemLoadModellingisatechniqueusedtomodelthepowersystemandessentialforstabilityassessments.Accuratemodellingofloadscontinuestobeadifficulttaskduetoseveralfactors,forexamples,lackofpreciseinformationonthecompositionoftheload,changin
7、gofloadcompositionwithtimedelayandweek,seasons,weather,throughtimeandmore.Electricutilityanalystsandtheirmanagementrequireevidenceofthebenefitsofimprovedloadrepresentationinordertojustifytheeffortandexpenseofcollectingandprocessingloaddata,aswellastomodifycomputerprogramloadmod