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1、华北电力大学硕士学位论文AbstractTheicingphenomenonoftransmissionlineispronetogenerateinlowtemperatureandhumidenvironment.Transmissionlineicingwillcausepowerlinedisconnection,fittingsdamage,insulatorstingsflashingice,basicsinkortilt,andevenwillcausetowerscollapsed,wiregroundingaccident,whichthreatensth
2、enormaloperationofthepowersystemseriouslyandaffectsthenormalproductionandlifeofpeople.Therefore,enhancingthestudyofthetransmissionlineicethicknessmonitoringtechnologyandmasteringtheicingsituationoftransmissionlinereal-timehasimportantpracticalsignificancetoensurethesafeandstableoperationof
3、powersystem.Thispaperpresentsageneraldesignofthetransmissionlineicingon-linemonitoringsystem.Thetensionsensors,anglesensors,industrialcameras,temperatureandhumiditysensors,windspeedanddirectionsensorsareusedtocollectfielddata,andthroughGPRSnetworkandInternetnetworkthedataistransferredtothe
4、mainstationofpowersystemmonitoringandcontrolcenter,atfinalthetransmissionlineicethicknessiscalculatedbytherelevantsoftware.Onthebasisoftheoveralldesign,thechoiceprincipleoftensionsensor,anglesensor,GPRStransmitmodulesandpowerissummarizedandthespecificselectionprogramisgiven.Forthecoremodul
5、eoftransmissionlineicingon-linemonitoringsystem-powertransmissionlineicethicknesscalculationmodule,thispaperproposesatransmissionlineicethicknesscalculationmodelbasedonthemechanical.Themodeltakesintoaccountthewindandnowindeithercase,andthetransmissionlineicethicknessiscalculatedbythebasicc
6、haracteristicparameterssuchastheaxialtensionoftensionwiresegmentandthetensionandexcursionangleofhanginsulatingstring.Throughsimulationmethodthetransmissionlineicecalculationmodelisvalidatedinthispaper.Thealuminumisusedtosimulatetheactualtransmissionline,andthesmalltensionsensorandsuspensio
7、nringsareusedtosimulateinsulatorstring.Transmissionlineiceissimulatedbydoughevenly.Thetestresultsoftheindividualsegmentaswellasstallscontinuousconductorshowthatthetransmissionlineicethicknesscalculationmodelproposedbythispaperhasasmallcalculationerrorwhichcanm
