风电机组控制系统监控通信服务器的设计与实现

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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