492023年2月/February2023nvironmentalAdaptability&ReliabilityE环境适应性和可靠性摘要：以输电线路分布式监测技术为基础，将双端行波定位的应用范围从本线路延申至同电压等级的相邻线路，以拓展双端定位的途径。首先，分析了行波信号在相邻及同塔多回线路之间串入式传播的衰变规律，提出以串入式行波信号进行双端定位的方法，指明了其应用条件；其次，在某地区电网选取典型输电线路进行实例验证，分析比对了串入式行波双端定位的误差。结果表明，在串入途径选取合适时，串入式行波的定位方法仍具有较高的定位精度。关键词：分布式监测；故障定位；串入式行波；定位误差中图分类号：TM852文献标识码：A文章编号：1004-7204(2023)02-0049-07基于邻近线路行波监测的故障定位方法研究ResearchonTravelingWaveFaultLocationMethodBasedonSeriesTransmissionofAdjacentLines赵海龙1,2，刘伦3，刘宏欣3（1.海南电网有限责任公司电力科学研究院，海口570311；2.热带智能电网实验室，海口570311）3.武汉三相电力科技有限公司，武汉430074）ZHAOHai-long1,2,LIULun3,LIUHong-xin3(1.ElectricPowerResearchInstituteofHainanPowerGridLimitedLiabilityCompany,Haikou570311;2.KeyLaboratoryofPhysicalandChemicalAnalysisforElectricPowerofHainanProvince,Haikou570311;3.WuhanSunshinePowerScience&TechnologyCo.,Ltd.,Wuhan430074)Abstract：Basedonthedistributedmonitoringtechnologyoftransmissionlines,theapplicationrangeofdoubleterminaltravelingwavelocationisextendedtotheadjacentlineswiththesamevoltagelevel,soastoexpandthepathofdoubleterminaltravelingwavelocation.Firstly,thedecaylawoftravelingwavesignalinseriestransmissionbetweenadjacentlinesandcommon-towertransmissionlinesisanalyzed,andthemethodofdoubleterminallocationbasedonseriestravelingwavesignalsisproposed,anditsapplicationconditionsarepointedoutinthispaper.Secondly,thetypicaltransmissionlinesareselectedinacertainareapowergridforexampleverification,andtheerrorofdoubleterminallocationbasedonseriestravelingwaveisanalyzedandcompared.Theresultsshowthatthelocationmethodoftheseriestravelingwavestillhasahighaccuracywhentheseriesapproachisselectedproperly.Keywords：distributedmonitoring;faultlocation;seriestravelingwave;locat...
