用电负荷管理系统终端设备雷害风险评估

上海交通大学硕士学位论文用电负荷管理系统终端设备雷害风险评估姓名：崔雪申请学位级别：硕士专业：电气工程指导教师：傅正财200901158dA2kmeA2km'eA2kmiA2m1A2mmA2kmC1C2C3C4C5C6CdCeCtCEHmPHmKLmdLfLiL0LtLXLNCNDNgN2kma⋅iNINLNMN123LoadcontrolsysteminelectricmanagementmustLimitspowerconsumptiontemporarily,reducesandavoidspullingthefloodgatetolimitpowerconsumptiondirectly,whentheelectricpowersupplypresentsthegap;andmustgatheringuseselectricitydataaboutelectricpowercustomer,servefortheelectricpowerproductionandtheelectricpowermarketing,enhancesthemanagementlevelabouttheuseselectricity;anddothebaseworkaboutthemanagementofelectricpowerdemandsidebetter,raiseslevelwiththeelectricpowercustomerscienceuseselectricity,useselectricityreasonably,maketheelectricpowersustainabledevelopment.Withthedevelopmentoftelecommunicationtechnology,theuseofelectroniccommunicationsinthemanagementofelectricityloadsystemhasbecomemoreandmorepopular.Mostoftheelectroniccommunicationsequipmentconsistsofalargenumberofelectronicintegratedcircuitcomponents,assensitiveelectronic,comparedwithotherelectricalequipment,electroniccomponentsaremorevulnerabletoover-voltage,over-currentand4theeffectsofelectromagneticinterferenceandeveneasilytobedestructed.Asapowerfulsourceofelectromagneticinterference,lightingcangenerateenormousinstantaneouscurrentchanges,resultinginhugetransientelectromagneticfield.Whentheintegrationofelectronicdevicesisgettinghigherandhigher,powerconsumptionisgettingsmallerandsmaller;itsover-voltagecapacityisweakerandweaker.Asaresult,itisvulnerabletotheeffectsoflightningover-voltage.Accordingto1999-2005sixyearsthunderstrokeaccidentreportstatistics,altogetherthenumberofmovementterminalsare17046,inthissixyears,hasthethunderstrokeaccident26times,theprobabilityofthunderstroketimesis0.001525284524times/year.Throughlossandanti-radarcostcomparison,alltheloadcontrolsysteminelectricmanagementandterminalequipmentinstalltheanti-radarequipmentsisuneconomical.Therefore,toconcreteloadcontrolsysteminelectricmanagementandterminalequipmentwhetherinstalltheanti-radarequipmentornot,canuseriskassessmentofthunderstrokegivesthereasonablesuggestion.Thisispositivesignificanceforitseconomicalandsafeoperation.Thispapermainlyintroducesthemineriskassessmentparameters,calculationmethodsandevaluationprocessandalsoconductstheactualassessmentvialoadmanagementsystemandterminalequipment.Inaddition,othereffectscausedbylightninghavealsobeenanalysedandcalculated.For5example,calculationoftheformationoflightningsensorovervoltage,andthecomputingofpotentialrisecausedbylightingnearthegroundandthemetalpipe-lineimpactofinternalcommunicationsbylighting.Then,thispaperwillanalysetheactualoperationofthemineaccidentwhichisbasedonthecompositionoftheentireterminalsystemandworkingmechanismoftheanalysis.Fortwo-terminalsystem,theremaybetwowaysfromthelightningpulse,Oneisthepowersupplysystemwhichisconnectedtofactory-frequencyandhaveanimpactontheintroductionofAntennalightningdisastersthroughthelightningover-voltagepulse.Fromthesetwoaspectsofthemainconsiderations,twomensuresforantidirectLightningStrokehavebeentaken.Finally,thesurveyofthreeLPSrelativelylacksofloadterminalsystemsandtheriskoflossfromdirectandindirectlightningcalculationshowsthattheriskoflosstheantennaindirectlystruckbylightningdamagearelessthanitstolerancelimits,whichmeetsRiRTconditionsandmeettherequirementsofsafeandreliableoperation.DirectLightningStrokedamageforriskassessmentshowsthattheantennadirectlystruckbylightningarelessthantheriskofdamagetolerancelimits,whichmeetRdRTconditions,sonospecialanti-lightningdirectlyorindirectlymeasuresarerequiredElectricityLoad,TerminalEquipment,ThunderStroke,RiskAssessment1019991200200565002006100001999200572020042005181.2RiRT111.3(IEC)(ITU)ATP1.4122.12.21.2m0.5m34mΩ502-1Fig2-1ComponentdiagramaboutTerminalEquipmentofLoadmanagementsystemI/O2-213Fig2-2TheinternalstructureoftheTerminalFig2-3SchematicofElectricalconnections2.31410kVTherearetalltreesinthevicinitybNearthewallorbuildingprocessescNearbytallbuildingsdTotallyexposedFig2-4Schematicofthearrangementabouttheantenna153.1123.2()163.3dT173.4(LPS)E'1.3'()(0.024)()geedeeNKNAAKTAA=⋅⋅+=⋅⋅⋅+KgN2kma⋅dT/daeA2km'eA2kmcNCNC/108.55.1-×=C1/cENN=-E183.5XNdT3.1024.0:dggTNN=610:-×=ddgDDCANNNdAdAdC610)(:-××-×=ddmgMMCAANNNmA2kmMNMN225.025.0)(2×+×+×+×=pWLWLAmdCTab3-1LocationfactorsdCdCLN6110-×=tdgLCCANNgN2kma⋅1A2m19dCtCININ610-×=teigICCANNgN)/(2akm⋅iA2meCtC3.6PdPAPBPCPiPMPWPZP203.7LdLtLfL0LiLiL04L05L3.8dRiRdRDNAPBPCPdLdRDNAPBPCPdLDNAP1tL3tLBPfrr1fL2fL3fLCP01L02L03Lrfr21iRMNLNINMPWPZPiLiRMMPNWLPNZIPNiLMMPNWLPNZIPN0504LL+3.8.2Fig3-1Flowchartofthunderdisasterriskassessmentsystem3.8.3dRiR22idRRR+=TRTRTRTab3-2TolerancevalueoftheriskTRTR510-310-310-TRdRiRRTRdRTRiRTRdRTRiRTRRTRdRTRiRTRdRTR23ABC4.1LPS1dT49.9da)]/([87.39.49024.023.1akmNg⋅=×=K1.0eALWHeA4-1eATab4-1CalculationabouteA2/kmAe3′eA6102000-××=′LAe50Lm=:1.0=′eA4N4-224NTab4-2CalculationaboutNN0.41540.403370.402485cNCNC/108.55.1-×=CcN4-3Tab4-3selectionoffactorC1C1.01.51.52C0.50.50.53C1.01.01.04C1.01.81.85C1.01.01.06C1.21.21.2123456CCCCCCC=+++++5.777CNC/108.55.1-×=0.032180.02620.