变压器在线故障诊断方法的研究与软件实现

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1、大连交通大学硕士学位论文变压器在线故障诊断方法的研究与软件实现姓名：王睿申请学位级别：硕士专业：机械电子工程指导教师：王道顺20090612人造交通人学1—学硕十学何论文AbstractWiththpowerscXPana1ngimt'hh1err01c•1raaecurty■Angascsd•1ss0cVaemodem1arge一scystemsisrapidl,1c.TransformerseofelectricaloftewmselalseO1duesbtcddircctlyimpsofequipmen

2、t,hepowersystetabilityandsnthcinsulativcoilonand4rtheamountofpowertificia1IAc・ls0ftransf0rmcrPr0VcdancffcctiVransf0rmer•1sraP•1d•1ncreas•1ngttonthcpowcrsyinglyunableomeeactualneeds.0ingisbecomingincreassummarizintheresearchresultsinterna1andabroad,periodict

3、estn—1inemonitoremotemonitoringandtringhasbeenputontheagCombinedwiththeneedoftheactualsubjectrequest,aprogramoftransformeroilgasremoteon•1inemonitoringisprovided.Programisdividedintotnreeparts：thescenepart,communicationprotocolandthehostcomputer・Thescenpart

4、inc1udingthechoiceofpolymermembrane,gasseparationmethodofchoicingco1umn,gassensorsandlhechoiceofsing1e—chipandSOon.Usingsolublepolymer1…_PTFEmembranepermeabi1itytogasmixtureisolatedfromthetransformeroil；Useingtheprinciplesofgas.chromatographystationaryphase

5、throughatwoophasecofumnlofepir^tethemixedgasintofivekindofseperatedgases：hydrogen,methane,acetylene,ethy1encandethanc.ThcSn02scmiconduetorgassensorsdetectconcentrationsofdifferentgasesandsentsignaltoAtmega32whichisthecoreofdata—process1Commug・lnnunit.Remote

6、cationwasdoncbuusingModBuscommunicationprotocolbctwccnData—processingunitandthchostcomputcr.Thcproblemofseria1communication^Slongpacketofdataissolved.CombinedwithSQLSERVER2000databaseal1VB6.0,kfAfaceofhostcomputerisdesigned.Thefunctionsofremotereal一timedata

7、monitoring,systemparametersettings,historicaldatarecordsandfaultdiagnosisarearchieved.Comparingwiththemethodoftranditionalcxpcricnccorgasproductth1rd—rat1o1au1td1agnos1smethod1sprovlded.Comprehens1veana1ys1sthegascontent,gasproductionrateandgascompositionma

8、kesthediagnosisoffau1ttypemoreaccurate.WiththeF1exibi1ityof0n—1inemonitoringsystem,AvarietyofdifferentoccasiaanridseTad^s^（ferrm（）RjtoringaremeetedKeywords：On—1ine^monitoring；Transformer；MeteorologiS?U