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1、江苏科技大学工学硕士学位论文II万方数据AbstractAbstractWiththedevelopmentofscienceandtechnologyaswellasthecontinuousimprovementofproductivity,theproportionoftheelectricpowercostsandtheoperatingcostswhichareassociatedwithelectricpowerhasincreasedsignificantly.Animpeccableelectricpowerm
2、onitoringsystemcanbefullyusedtosupervisethepowerquality,improvetheefficiency,reducethelossandtheoperatingcosts.ThetopicisoriginatedfromtheprojectLNG(LiquefiedNaturalGas,LiquefiedNaturalGas).Toinsurethenormaloperationofthetankequipments,thereshouldbeasetofintelligent
3、powermonitoringsystemwhichissimple,safe,reliableandhighinstantaneitytoguaranteethecontinuityofelectricpowersupply.First,combiningtheactualrequirementofZhuhaiLNGproject,thispaperanalyzesthenetworktopologystructureoftheelectricpowermonitoringandcontrolsystemoftheZhuha
4、iLNGpotarea,introducesthegeneralrequirementsofthemonitoringsystemdesign,configurationandperformance.ThesubstationlayeroftheelectricpowermonitoringandcontrolsystemusesthemonitoringsoftwareandremotecommunicationdevicebasedonIEC61850standard,whilethesubstationlayernetw
5、orkappliesthedualredundantnetworkwiththereal-timeandhighreliabilityfeatures,thespacerlayerdevicesusethedigitalprotectionandcontrolequipmentbasedonIEC61850standardandtheelectricparametermeasuringinstrumentbasedonModbus,etc.Secondly,thepaperintroducestheIEC61850standa
6、rd,illustratestheprincipleandprocessofmodelingaswellastheconfigurationlanguage,mainlyusingintheincominglineneartheLNGtankmeasurementandcontrolprotectiondevice'smodelasexamplewithadetaileddiscussionofthewholeprocessofmodelingandSCLfiledescriptionoftheserver,logicalde
7、vices,logicalnode,dataobjects,dataattributeanddatasets,etc.Again,thispaperexplainstheMMScommunicationbetweenthesubstationlayerandthespacerlayerofthemonitoringsystem,withtheintroductionoftheabstractcommunicationserviceinterface,specificcommunicationservicemapping,MMS
8、communicationmodeandcommunicationprotocolstack.ThenintroducesthespecificconfigurationofMMScommunicationcombinedwiththeapplicationoftheactu