弓网离线电弧对机场ADS-B地面站系统电磁骚扰测试与分析

Test and analysis of off-line arc in pantograph catenary on electromagnetic disturbance of airport ADS-B ground station system

为研究弓网离线电弧对机场广播式自动相关监视(automatic dependent surveillance broadcast,ADS-B)地面站系统的影响同时给出电分相对ADS-B地面站系统的保护距离,实测并分析了动车组弓网离线电弧典型辐射特性。测试结果表明,弓网离线电弧电磁发射,电分相处强度最大。距离电分相拉弧点23.3 m处实测数据结果为峰值检波的最大场强值达66 d BμV/m;准峰值检波较峰值检波降低约20 d B;平均值检波较准峰值又降低约14 d B。依据GB 6364(航空无线电导航台(站)电磁环境要求)的一般保护率条件,分析各种影响因素,给出电分相拉弧点距离ADS-B地面站系统的保护距离为537 m。本研究结果能够对动车邻近机场区域的线路设计与布局提供依据;同时也对国标的修订提供重要参考。

In order to research the influence of off-line arc in the pantograph catenary on Automatic Dependent Surveillance Broadcast( ADS-B) ground station system and give the protection distance between the phase insulator and the ADS-B ground station system,typical radiation characteristics of the off-line arc in pantograph catenary are measured and analyzed. The test results show that the electric field intensity of the off-line arc in pantograph catenary has maximum in the phase insulator. The measurement data of the point whose distance between the phase insulator is 23. 3 meters is that the field intensity is 66 d B μV/m by the PK detection mode,the field intensity reduces about 20 d B by the QPK detection mode. It reduces about 14 d B by the AV detection mode. According to the general protection rate conditions in GB 6364-2013( Electromagnetic environment requirements for aeronautical radio navigation stations),the conclusion is that the protection distance between the phase insulator and the ADS-B ground station system is 537 meters. The results of this research can provide the basis for the design and layout of the airport in the vicinity of the EMU and an important reference for the revision of the national standard.