摘要
对武广客运专线上高速运行的列车弓网系统所产生的电磁干扰进行实测分析,内容包括地点的选择、天线的摆放与极化、测试仪器的选择与设置等。考虑扫描时间、放电时间以及离线过程中电弧的形态,对GB/T24338.2中定义的测试方法进行优化和改进,提出了适合于高速列车电磁干扰频谱的抓取方式;结合测试数据,探讨对数周期天线在不同极化方式下对测试结果的影响,以及不同的分辨率带宽对测试频谱和内部参数的影响;提出了标准中有待进一步修订的项。
The electromagnetic interference generated by pantograph catenary system of high-speed trains on WuhanGuangzhou Passenger Line is measured and analysed,including mainly the choice of location,the polarization and placement of antenna,the instrument selection and settings,etc.By putting the sweep time,the discharge time and arc shape into full consideration,the testing method which has been defined in the standard of GB/T24338.2 is optimized and improved,an acquisition mode suitable for electromagnetic interference spectrum of high-speed train is proposed.Combined with the testing data,the influence from different polarization modes of log periodic antenna,the influence of RBW （resolution bandwidth） for spectrum curve and internal parameters are mainly discussed,some items in the standards that need further revision are also pointed out.
出处
《城市轨道交通研究》
北大核心
2015年第1期39-42,共4页
Urban Mass Transit
基金
国家"八六三"高技术研究发展计划重点项目子项目(2009AA110303)
关键词
高速列车
弓网电磁干扰
测试方法
high-speed train
pantograph network electromagnetic interference
testing method
