输电线路覆冰厚度监测技术分析与应用

输电线路覆冰厚度监测技术分析与应用

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页数:47页

时间:2019-03-03

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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

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