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ID:36460323
大小:2.62 MB
页数:83页
时间:2019-05-10
《火电厂厂级监控信息系统SIS建模、实现及人工智能的应用研究》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、东南大学博士学位论文火电厂厂级监控信息系统(SIS)建模、实现及人工智能的应用研究姓名:余廷芳申请学位级别:博士专业:热能工程指导教师:林中达20040901垒!!!!!壁——AbstractInordertoimprovethewh01eeconomiebenefitsandthe1evelofproducemanagementforpowerplantinourcountry,theappearanceofSupervisoryInformationSystem(SIS)inplantlevelisinevitable,andtheproblemscorrelatedwithsis
2、systemhavealreadybecomeakindofhotsubjectfurresearch.Becausecomplexityofstudyobjcotsinpowerplant,nonlinear,couplingrelationamongparameters,duringtheprocessofestablishinganddevelopingofSISfunctionalmodelsexiststheproblemssuchasinaccurately,sometimeimpossibletosetupamodel.Inthisthesis,Usingthedevel
3、opmentof“The012-linesystemofunitperformancemonitoringandenergylossanalysisinpowerplant”andestablishmentofoptimizationproblemmodelsinSiSasexamples,conventionalmethodsofmodelingfursolvingtheproblemssuchasthecalculationofunitperformance,determinationoftargetvalueofoperationparameters,energylossanal
4、ysisastheoperationparametersdeviatesfromtargetvaluewereintroduced,andadvantagesanddisadvantagesofthosemethodswerealsodiscussed.Inordertoaddresstheaboveproblemsoftheconventionalmodelingmethods,theArtificialIntelligence(A1)modelingmethodssuchasArtificialNeuralNetwork(ANN)andGeneticAlgorithms(GA)we
5、readoptedintheSISfunctionalmodelestablishment,whichhasadvantageinthemodelingofcomplexobjacts.TheANNofSelfOrganizationFeatureMaprSOM)andBPnetworkwereadoptedtoestablishthemodelofsteamturbinepoweroutput,withtheaidofSOM’sabilityinclustering,thelimitationofconventionalcollectionoftrainingsampleswerea
6、ddressed.Withthemodelaftertrained,thedifferencebetweenthepredictedpoweroutputcalculatedbyourmodelandtheactualvaluegeneratedbysteamturbinelocatedin1.5percentage.mostofthemlocatedin1percentage.Withtheestablishedmodelandthedataofpowerneededincyclecoolingwatersystem.thebestvacuumvaIueofcondensercanb
7、edetermined.andenergylossresultbydeviationofsomemainoperationparametercanalsobedetermined,comparedwithconventionalmodels,themodelestablishedbyushastheadvantageofpertinencetotheactualequipmentsincethesampledatawerecollectedfr
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