SerialNo.93RailTransitVocationalEducationResearchan(总第93期)No.4,20232023年第4期交通职业教育研究西安轨道基于频谱分析对兰新高铁弓网受流质量研究张宗芳(西安铁路职业技术学院陕西西安710026)摘要:弓网系统作为高速铁路重要的组成部分,担负着为动车组输送电能的重任。弓网耦合特性对列车运行发挥着越来越重要的作用,本文以兰新高铁为研究对象,建立弓网耦合模型,进行了弓网耦合性能谱分析。首先本文以兰新高铁运行在250km/h时接触压力为研究对象,应用自回归模型,分别使用自相关法,Burg递推法,最大炳谱分析法,对接触压力做频谱分析,进行弓网耦合评价的同时比较三种方法的优劣性。其次分析兰新高铁在不同运行速度,不同弓网匹配关系情况下,以接触压力为研究对象应用频谱分析法,评价弓网耦合性能。最后使用弓网抬升量为研究对象,应用频谱分析法,评价弓网耦合性能。关键词:弓网耦合;接触压力;抬升量;谱分析中图分类号:U228.2+6文献标识码:A文章编号:SY010-(2023)04-0015-09ResearchonCurrentCollectionQualityofLanxinHighSpeedRailwayPantographNetworkBasedonSpectrumAnalysisLinNan(Xi'anRailwayVocationalandTechnicalInstitute,Xi'an,Shaanxi710026,China)Abstract:Asanimportantcomponentofhigh-speedrailways,thepantograph-catenarysystemisresponsiblefordeliveringelectricalenergytomultipleunits.Thecouplingcharacteristicsofpantographandcatenaryplayanin-creasinglyimportantroleintrainoperation.ThisarticletakestheLanxinhigh-speedrailwayastheresearchobject,establishesacouplingmodelofpantographandcatenary,andconductsaspectralanalysisofthecouplingperform-anceofpantographandcatenary.Firstly,thisarticletakesthecontactpressureoftheLanxinhigh-speedrailwayrunningat250km/hastheresearchobject,appliesanautoregressivemodel,andusesautocorrelationmethod,Burgrecursivemethod,andmaximumentropyspectralanalysismethodtoconductspectralanalysisofthecontactpressure,evaluatethecouplingbetweenthepantographandthecatenary,andcomparetheadvantagesanddisad-vantagesofthethreemethods.Secondly,analyzetheLanxinhigh-speedrailwayunderdifferentoperatingspeedsandmatchingrelationshipsbetweenpantographandcatenary,andapplyspectrumanalysismethodtoevaluatethecouplingper...