摘要
概述电磁轨道环境下应答器系统受电磁干扰的研究现状,并依据电磁干扰防护的常用方法提出优化应答器传输单元滤波性能的方案。对现有应答器传输单元滤波性能进行分析,由传统方法设计新滤波电路。针对传统计算方式得到的滤波电路性能指标存在偏差的问题,采取NSGA-Ⅱ算法优化计算方案;在考虑传输线以及实际元器件后,实现滤波电路的等效。采用软件优化参数减小分布参数的影响并制备实体滤波器。最终使用频谱仪测试滤波器的插入损耗指标,与设计时的理论值进行比对,验证方案的可行性。
In this paper,the research status of Electromagnetic Interference(EMI)of balise system in electromagnetic rail environment is summarized,and a scheme of optimizing the filter performance of balise transmission unit is put forward according to the common methods of EMI protection.Firstly,the filter performance of the existing balise transmission unit is analyzed,and a new filter circuit is designed by the traditional method.Then,the NSGA-II algorithm is adopted to optimize the calculation scheme for the problem that the performance index of filter circuit obtained by traditional calculation method has deviation,and the equivalent filter circuit is realized after considering the transmission line and the actual components.After that,the parameters are optimized by software to reduce the influence of distributed parameters and the filter is produced.Finally,the insertion loss index of the filter is tested by spectrum analyzer,and the feasibility of the scheme is verified by comparing with the theoretical value in design.
作者
曹鹤飞
孟天旭
杨景博
向磊
Cao Hefei;Meng Tianxu;Yang Jingbo;Xiang Lei(CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China;Beijing Engineering Technology Research Center of Operation Control Systems for High Speed Railways,Beijing 100070,China;Beijing Railway Signal Co.,Ltd.,Beijing 102613,China;Shijiazhuang Tiedao University,Shijiazhuang 050043,China)
出处
《铁路通信信号工程技术》
2024年第4期1-9,共9页
Railway Signalling & Communication Engineering
基金
中国国家铁路集团有限公司重点课题项目(N2022G045)。
关键词
应答器传输系统
电磁干扰
插入损耗
balise transmission system
electromagnetic interference
insertion loss
