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ID:32050287
大小:3.35 MB
页数:69页
时间:2019-01-31
《风电机组控制系统监控通信服务器的设计与实现》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、AbstractNowwindturbinefromdifferentmanufacturersinourcountry’swindfarmhavecompatibility,interoperability,scalabilityaspectsoftheproblemofinsufficientbecauseoflackofunifiedcommunicationstandardSoitisdiffculttooperateandmanagethewindfarm.Withtheintroductionofwindpowerplantinternationalcommunicatio
2、nstandardIEC61400-25,itprovidesaunifiedcommunicationprotocolstandardtodesignthenextgenerationofstandardizedwindturbineandwillbecometheunifiedcommunicationstandardforfuturewindfarm’smonitoringandcontrolsystem.Tomeetthedemandofunifiedmonitoringandtheseamlesscommunicationbetweenwindturbinesinwindfa
3、rm,aschemeofstandardizedcommunicationsofwindturbinesbasedontheIEC61400-25protocolisdesignedinthecontrolsystem.itcankeepupwiththeinternationalstandardandmeettheneedsofconcentratedandremotemonitoringofthewindturbine.Theworkcanbesummarizedinfollowingpoints:(1)Theinformationmodel,informationexchange
4、modelandthemappingofcommunicationprotocolaboutthewindturbineareanalyzed.Incomparisonwiththeadvantagesanddisadvantagesoftheunderlyingmappingofcommunicationprotocol,MMSprotocolisadopted.MMSinformationmodelismappedtotheVMDstructureinMMSserver.ByconstructingtheVMDmodelofkeypartsofthewindturbines,itc
5、anshieldtheheterogeneousofwindturbines.ThecorrespondingservicemodelmappingtoMMSservicemakescharacteristicsmanagementofeachentitypartsintothecommonstandardizationmanagementofVMD.(2)IntheEclipseplatformaMMScommunicationserverisdesignedbyjavalanguage.Athird-partysoftwareisusedtodesignandrealization
6、ofasn.1decodingandencodingofMMSmessage.AoptimizedmethodisusedthroughdirectlyintheformofencapsulationMMSprotocolstack,andservicesofMMSvariablemodelaredesignedtomeetthemontoringandcontrolofwindturbinesandtheyaresolidifiedinthesoftwareofMMSserver.Thesemethodscanensuretheintegrityofthecommunicationf
7、unctionofMMSandreducethecostofnetworkprocessing,whichcanimprovetherateoftransmissionofreal-timedata.(3)Forwindturbinecontrolsystemwillhavethefunctiontomonitorinternaldeviceandtobemonitoredbyexternalprogram,theembeddedsoftwar
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