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1、西南交通大學碩士學位論文基于IEC61850的變電站通信網(wǎng)絡的研究姓名：張順利申請學位級別：碩士專業(yè)：電力系統(tǒng)及其自動化指導教師：王茜20080501西南交通大學碩士研究生學位論文第1l頁AbstractSubstationplaysanimportantroleinpowersystem，anditisextremelyimportantforpowersysteminrunningsafelyandeconomically,becauseitconvertsanddistributespowerenergy．S
2、ubstationcommunicationnetworksconnectsthevarioussubstationIEDs(intelligentelectronicdevices，IEDs)，whichisthesubstationautomationsystem’Slifeblood，andthesystem’Savailabilityisdecidedbyitsreal·timeperformanceandreliability．IEC61850standard，istheonlyinternational
3、standardbasedontheuniversalnetworkcommunicationplatformforsubstationautomationsystem．ThepurposeofthestandardistorealizeinteroperabilityforsubstationIEDsfromdifferentmanufactures。IEC61850willbecomethebestsolutionforthesubstationseamlesscommunication，ithasrepres
4、entedthesubstationautomationfuturedevelopmentdirection．a(chǎn)nditsimplementationwillcertainlypromotethesubstationautomationlevel．Firstly,thispaperpresentstheIEC61850standardarchitectureanditsmaincharacteristics，andthentheservicemodelsanditscorrespondingmappingservi
5、cesdefinedinthestandardareanalyzed．Accordingtothesubstationcommunicationnetworksperformancerequirements，thesubstationcommunicationnetworksstructurebasedontheIEC61850standardispresented；thefeasibilityofapplyingEthernettechnologytothesubstationcommunicationnetwo
6、rksisadequatelyresearched．Analysisofthesubstationmessagestransmissiondelayanditsimpactfactors，andseveralmethodswhichcanimprovethereal—timeperformancearediscussedinthispaper．Onthebasisofanalysisofdataflowwithinasubstation，mathematicalmodelsofdifferentkindofdata
7、flowwithinsubstationisestablished，andpresentstheIEC61850messagetypeanditsproperty；StationnetworkssimulationmodelisestablishedbyusingOPNETsoftware，andthereal．timeperformanceofthestationnetworkswhichiSbasedswitchedorsharedEthernetnetworkissimulated．Thesystem’Sre
8、liability西南交通大學碩士研究生學位論文第1II頁indextoassessthereliabilityofthesystemispresented，analysisofseveralanalysismethodswhichappliedtosubstationcommunicationsnetworkreliability．Onthebasisof
