1,1,2(11,100085;21,063500):,,,,:;;;:TN915.853:B:1005-7641(2004)04-0007-04:2004-02-10:(1969-),,,,;(1977-),,,,;(1967-),,,,,0,,,500kHz,,,,40MHz,200MbitPs,,,,1,,,,1.1P,380P220V250m,,,,,,;,T,,,,,;,,,:,,,720044©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,1.2,,,40500kHz,9450kHz,CENELEC9148.5kHz;(4kHz5kHz)N(1,2,3,4),100kbitPs,100kbitPs500kHz,,MbitPs,500kHz,138MHz,200MbitPs,,138MHz1.3(13dB),,,,,,,,200400,,,,,,,1.4,1MHz,,(OFDM),,,OFDM,kbitPsMbitPs,1.5,380V,,,,,500kHz,,0.120,,250kHz500kHz,,,2080,,,2,:(1),,,;(2),,,;(3),,3,(),3.1,(),(CU),,820044©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.11,(275V),,,C10.01FT1,C1T1,50Hz,,,138MHz,T1Hz105Hz,T1,,,,T1:(1),,,,();(2),,(NXO);(3),,,,250,10H2T1,,,(),MOV100D13,,33.2,,,,,4CPE,,();,,CPE4,,,,,,,:(1)(238MHz),,920044©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,25008000HPm(2),,,,,,50,50150,,1112(3),,,,,,,,,,,,,,,,,5(),,,3.3,,,,5,,24dB,,4,,,,,:[1]LIUHua2ling,ZHANGBao2hui.TheCoupleTechnologyofDistributionHigh2SpeedCarrierCommunication[J].PowerSystemCommunication,2002(2):1312-1315.[2]MDAmore,MSStao.DigitalTransmissionPerformanceofCarrierChannelonDistributionPowerLineNetworks[J].IEEETransactionsonPowerDelivery,1997,12(2):616-623.[3].[M].:,1990.[4],.[M].:,2002.Thewide2bandcouplingtechnologyanddeviceoflow2voltagepowerlinecarriercommunicationLIJian2qi1,HULan1,MIShuo2(11ChinaElectricPowerResearchInstitute,Beijing100085,China;21LuannanElectricPowerBureau,Luannan063500,China)Abstract:Thecouplingdeviceisoneofthemostimportantdevicesforthepowerlinecommunicationsystems.Aconvenient,safeandhighefficiencycoupledeviceisthebasistorealizepowerlinecommunicationofhighfrequencycarriersignal.Inthispaper,wefirstlyanalyzetherequirementofthecouplersstructureandfrequencybandfromtheviewofthenetworksstructureandsignaltransmissioncharacteristics.Andweresearchthedistributionimpedancecharacterinhighfrequency,furthermorethedesignprincipleofcouplingdeviceisadvised.Fi2nally,thedesignandrealizationoftwokindsoftechnologyanddevicesareintroduced.Keywords:powerlinecommunication;highfrequencycarrier;broadbandcoupledevice;low-voltagedistributionnetwork0120044©1995-2006TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.