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ID:36600273
大小:8.05 MB
页数:68页
时间:2019-05-12
《基于GA的列车自动调整算法在CBTC系统中的应用研究》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、北京交通大学硕士学位论文基于GA的列车自动调整算法在CBTC系统中的应用研究姓名:张亦南申请学位级别:硕士专业:交通信息工程及控制指导教师:唐涛20080601ABSTRACTABSTRACT:Withtherapiddevelopmentofurbanrailwaytrafficautomatictraincontroltechnology,CBTC(Communication—BasedTrainContr01)isthetrendofurbanrailwaytrafficcontrolsysteminthefuture.ThemovingblocktechnologybasedOil
2、CBTCbringsnewchallengetoautomatictrainregulation,becausehighertrafficdensityandshorterheadwayoftrainsresultinmoredifficultyfortrainoperationadjustment.Sothecorrelationstudyhaspracticalsignificance.Inviewofthis,studyalgorithmsofautomatictrainregulationbasedonGA(GeneticAlgorithms,GA)consideringcombi
3、natorialoptimizationoftrainoperationadjustmentandfeatureofCBTCsystem,then,correspondingsimulationiscardedout.Firstofall,modelofautomatictrainregulationpertinentlyisputforwardthronganalyzingcharacteristicsofurbanrailwaytraffic、movingblockandtrainoperationadjustment.Secondly,basedonthemodelandcharac
4、teristicsofautomatictrainregulationofurbanrailwaytraffic,GAisselectedtogetsolutionofthemodel.ApplicationprocessofGAisdetaileddescription.Differentfromtraditionalcodingmethodbytrainserialnumb%realcodingisputforwardaccordingtotime.GAisimprovedbyusingelitisminselection,two-pointcrossover,mutationoper
5、atorwithbreedingdevice,andconstrainedconditionsviaparameter-freepenaltyfunctionsmethod.Atlast,basedonBatonglineofBeijingmetroinchina,simulationenvironmentisconstructed.Inthepaper,thesimulationiscarriedoutundertrainseriousdelayandtraingroupdelayaccordingtopracticallinedataandoperationalsituationofB
6、atonglinecombinedwithCBTCsystem.SimulationresultsprovealgorithmsofautomatictrainregulationbasedonGAiseffectiveandfeasibleforbusyline.KEYWORDS:CBTC;MovingBlock;ATS;AutomaticTrainRegulation;GeneticAlgorithms;SimulationAnalysisCLASSN0:U292图索引图1典型的CBTC系统框图【31⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯~⋯⋯⋯⋯⋯⋯⋯⋯2图2CBTC系统的基本结构⋯⋯⋯⋯
7、⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯4图3ATS系统的基本结构⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯.6图4列车自动调整原理图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯7图5CBTC(移动闭塞)与传统固定闭塞比较示意图娜1⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯。14图6轨道交通运行图示例⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯..21图7复线铁路示意图⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯⋯
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