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从工频磁场数据到架空输电线路三相电流的反演逆推方法.pdf

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第 36卷 第5期 中 国 电 机 工 程 学 报 Vo1.36No.5 Mar.5,2016 1438 2016年3月5日 ProceedingsoftheCSEE ~2016Chin.Soc.forElec.Eng. DOI:10.13334~.0258—8013.pcsee.2016.05.031 文章编号 :0258.8013(2016)05.1438507 中图分类号:TM 15;O24 从工频磁场数据到架空输电线路三相电流的 反演逆推方法 肖冬萍 ,姜克儒 ,刘淮通 ,周强 ,李松浓2 (1.输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市 沙坪坝区400044; 2.国家电网重庆市电力公司电力科学研究院,重庆市 渝北区401123) InversionM ethodforCalculatingThree-phaseCurrentsofOverheadTransmissionLinesby UsingPower-frequencyM agneticFieldData XIAODongping,JIANGKeru,LIUHuaitong,ZHOUQiang,LISongnong~ (1.StateKeyLaboratoryofPowerTransmissionEquipmentSystemSecuritynadNewTechnology(ChongqingUniversity), ShapingbaDistrict,Chongqing400044,China;2.StateGridChongqingElectricPowerCo.ElectricPowerResearchInstitute, YubeiDistrict,Chongqing401123,China) ABSTRACT:W ithhtedevelopmentofsmartgrid,thedemand lineswere deduced.The three identification variableswere ofrreal-timemonitoringoftheelectricparametersfe.g.current) praed to only one in hteinversecalculation process,which alonghteoverheadrtnasmissionlinesisincreasing.However, greatly reduce the computation complexiyt ofhte inverse problem solving.Finally,hte simulation analysesverify the therearemnaydiffi cultiesinhteinsatllationofrtansformersin feasibiliytandaccuracyofhteproposedinversionmethod. the existing lines,oreven thereareno theachievable conditionsforinstallation.Inordertosolvehteproblem,anew KEY W ORDS:power-frequency magneticfield;three—phase detection method forthree-phase currentsofoverhead currents; overhead rtnasmission lines; inversion method; rtansmissionlinewasproposed,inwhichthemeasureddataof mult
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