電子式電流互感器中數(shù)據(jù)通信的研究.pdf

1、華中科技大學碩士學位論文電子式電流互感器中數(shù)據(jù)通信的研究姓名：王濤申請學位級別：碩士專業(yè)：電工理論與新技術指導教師：李紅斌20060427IIAbstractDevelopmentofopticfibretechnology，havepromotedtheresearchofelectroniccurrenttransfmer（ECT）；Theriseripenessofopticfibercommunicationtechnology

2、，singlechipcomputerDSPtechnologymakethedevelopmentofECTcarryonpracticalstage.Onthebasisofthethingthatthegeneralprinciple，methodoftheopticfibrefiberopticcommunicationareanalysed，combinetheacteristicofECT，thispaperhasputfw

3、ardseveralkindsofdifferentcommunicationschemes，suchasasynchronouscommunication，VFFVconvert，digitalencoding，etc..combineacteristicofharmoniccurrentmeasurementinDC，theanaloguecommunicationoffibreoptichasbeenappliedtothehar

4、moniccurrentmeasuringsystem.Firstly，theessentialphotoelectricdeviceoffiberopticcommunications，suchasopticfibre，lightsource(electricitylightconverter)，photoelectricconverteropticfibreconnect，etc.isintroduced.hasintroduced

5、themaintechnicalparameterofeverydeviceindetail.ThentherealizationwaytheapplicationwayintheECToffiberopticcommunicationhavebeendiscussed.Thewayoflightintensitymodulatinghasbeenedbeencarriedonthesignaltransmissionbetweenth

6、ehigh，lowvoltagesidesofsystem.Theaccuracyexperimentsindicatesthatthiswaycanmeet5%oftheaccuracyofharmoniccurrentmeasuringsystem.Finally，thepapercarriedonthediscussiontothedigitalcommunicationwayofopticfibre，havedevelopedt

7、heECTinwhichachipnamedADE7759isusedasadigitalintegrat.ItisprovedbytheaccuracyexperimentsthattheECTcanmeetat0.2classinIEC600448.Keywds：FiberopticcommunicationDigitalencodingElectroniccurrentTransfmerHarmoniccurrentmeasuri