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ID:39449876
大小:467.79 KB
页数:107页
时间:2019-07-03
《Thesis - Analysis of transmission system faults in teh phase》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、ANALYSISOFTRANSMISSIONSYSTEMFAULTSINTHEPHASEDOMAINAThesisbyJUNZHUSubmittedtotheOfficeofGraduateStudiesofTexasA&MUniversityinpartialfulfillmentoftherequirementsforthedegreeofMASTEROFSCIENCEAugust2004MajorSubject:ElectricalEngineeringANALYSISOFTRANSMISSIONSYSTEMFA
2、ULTSINTHEPHASEDOMAINAThesisbyJUNZHUSubmittedtoTexasA&MUniversityinpartialfulfillmentoftherequirementsforthedegreeofMASTEROFSCIENCEApprovedastostyleandcontentby:AliAbur(ChairofCommittee)MladenKezunovicKrishnaNarayanan(Member)(Member)YalchinEfendievChananSingh(Mem
3、ber)(HeadofDepartment)August2004MajorSubject:ElectricalEngineeringiiiABSTRACTAnalysisofTransmissionSystemFaultsinthePhaseDomain.(August2004)JunZhu,B.S.,ShanghaiJiaotongUniversityChairofAdvisoryCommittee:Dr.AliAburInordertomaintainacontinuouspowersuppply,nowadays
4、relaysintransmissionsystemsarerequiredtobeabletodealwithcomplicatedfaultsinvolvingnon-conventionalconnections,whichposesachallengetotheshortcircuitanalysisperformedforthedatasettingsoftherelay.Thetraditionalsequencedomainmethodhascongenitaldefectstotreatsuchcase
5、s,whichleadstoatrendofusingtheactualphasedomainmethodinfaultcalculation.Althoughthecalculationspeedofthephasedomainmethodisnotsofastandismemoryconsumable,itperfomrswellwhenhandlingcomplicatedfaults.Todaymoreandmorecommercialsoftwareinvolvesphasedomaincalculation
6、intheirshortcircuitanalysistotreatcomplicatedcases.Withtheadvanceddevelopmentofcomputers,thereisapossibilitytototallygetridofthesequencemethod.Inthisthesis,ashortcircuitanalysismethodbasedonphasedomainisdeveloped.Afterthethreesequenceadmittancematricesofthesyste
7、marebuilt,allthedataaretransformedintophasedomaintogetthephasedomainadmittancematrix.Thefollowingfaultcalculationsareperformedpurelyinphasedomain.Thetestresultsofdifferenttypesoffaultsin3bus,14bus,and30bustransmissionsystemsarepresentedandcomparedwiththeresultso
8、facommercialfaultanalysissoftware.Thevalidationofthisprogramisalsopresented.ToMyFamilyandParentsivACKNOWLEDGMENTSFirst,Iwouldliketoexpressdeepgratitudetomyadvisor,Dr.
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