基于频谱分析对兰新高铁弓网受流质量研究  

Research on Current Collection Quality of Lanxin High Speed Railway Pantograph Network Based on Spectrum Analysis

作　　者：张宗芳 Lin Nan(Xi'an Railway Vocational and Technical Institute,Xi'an,Shaanxi 710026,China)

机构地区：[1]西安铁路职业技术学院,陕西西安710026

出　　处：《西安轨道交通职业教育研究》2023年第4期15-23,共9页Xi'an Rail Transit Vocational Education Research

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。As an important component of high-speed railways,the pantograph-catenary system is responsible for delivering electrical energy to multiple units.The coupling characteristics of pantograph and catenary play an in-creasingly important role in train operation.This article takes the Lanxin high-speed railway as the research object,establishes a coupling model of pantograph and catenary,and conducts a spectral analysis of the coupling perform-ance of pantograph and catenary.Firstly,this article takes the contact pressure of the Lanxin high-speed railway running at 250km/h as the research object,applies an autoregressive model,and uses autocorrelation method,Burg recursive method,and maximum entropy spectral analysis method to conduct spectral analysis of the contact pressure,evaluate the coupling between the pantograph and the catenary,and compare the advantages and disad-vantages of the three methods.Secondly,analyze the Lanxin high-speed railway under different operating speeds and matching relationships between pantograph and catenary,and apply spectrum analysis method to evaluate the coupling performance of pantograph and catenary with contact pressure as the research object.Finally,the lifting a-mount of the pantograph and catenary is used as the research object,and the spectrum analysis method is applied to evaluate the coupling performance of the pantograph and catenary.

关 键 词：弓网耦合 接触压力 抬升量 谱分析 

分 类 号：U228.26[交通运输工程—道路与铁道工程]