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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