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ID:37415167
大小:2.66 MB
页数:101页
时间:2019-05-23
《基于混沌载波优化及行波多分辨理论的输电网故障诊断》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、ABSTRACTPowerconsumersarerequestingmoreonreliabili吼whilethenetworkfaultisinevitableduetothereasonsofoperation,maintenance,insulationandeta1.Fastfaultdiagnosisandeliminationcanenhancethespeedofexamine,repairandrestoration,aswellasoperationstabilityandreliability,whichleadstomorenationalprofits.
2、Therefore,IEEEPES2004conferencebringsforwardtheconceptofintelligentfaultdiagnosisdefinitelywhichmakesoutthatoptimalfaultdiagnosissystemconstructionisanall-importantworkfordispatcherstojudgefaultsection,faulttypesandfaultlocationusingallkindsofalarmsandelectricalparameters.Thisdissertationsprea
3、dstheworkfromtwoaspects,‘‘examination'’and‘Judgment”offaults,whichincludesthreemainparts.Firstly,self-customizedchaoticoptimizationarithmeticisputforwardtoseekfaultsectionbyprotectionorbreakerinformation.Secondly,onenovelmodularcriterionisprovidedtorecognizethefaulttypecomparedwiththetradition
4、almethod.Intheend,severalcountermeasuresarepresentedaccordingtothefaultlocation.Detailworkissummarizedasthefollowing.I.Regardingthefaultsectiondiagnosisasakindof0-1integerprogrammingproblem,thedissertationfetchesint11econce:ptofchaoticoptimizationandfirstlyputsforwardself-customizedcarrierwave
5、mappingforconsecutivevariablestoapplyinthisproblem.Thesimulationresultsindicatet11atthismetllodcanovercomethe1imitationsof仃aditionalalgorithmsandcanbeeasilytobeon-lineutilized.2.Thefaultwaveformcourseisexpatiatedfromtheviewpointofenergy.Themethodofpracticalasymmetricaldecouplingisprposedtoelim
6、inatetheinteractionsbetweenphases.Subsequently,itisalsoprovidedofthereflectionandrefractionofwaveformatthenodeoffaultpointorbuses,andequivalencetransmissionruleofmulti-linesbusnodes.3.Themultipleresolutionanalysistheoryandtheconceptofaverageanddetailarebroughtforwardfromthepracticalprojectleve
7、l,whichdescribesthelow·frequencycomponentsandhigh-frequencyonesoftransientsignals.Thewaveletsolutionfortransientanalysisisalsopresentedandwaveletfunctionselectioninsomepapersissuspected.4.Afteranalyzingthepromulgationlawofinteractionbet
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