摘要
通过测量、分析和研究西江牵引变电所的电磁辐射,得到工频场强值、无线电干扰和场强距离衰减特性.在峰值检波模式下对9kHz^1GHz范围进行频率扫描,并对特定频点进行准峰值测量.为减小高压传输线对测量的影响,提出"沿对角线延长线"进行测量的新方案并用于测试.测量结果表明:周围环境中的电、磁场值小于变电所的发射限值,并且随距离增加呈现衰减趋势;工频场强值远小于国家标准中所规定的限值,符合人体健康标准.牵引变电所的电磁辐射低于发射限值,对人体及周边弱电设施的干扰很小.
Electromagnetic radiation(EMR)of Xijiang traction substations is studied by metrical,analysis and scientific research,and the field strength of power frequency,radio interference and distance attenuation characteristic are acquired.By scanning frequency in peak detection mode,the electrical field strength and magnetic field strength from 9 kHz to 1 GHz are obtained,moreover,quasi-peak measurement at specific frequency points is carried out.In order to reduce the influence of high voltage transmission line,a novel“along diagonal extension line”scheme is proposed and applied in test.Measurement results show that electric field and magnetic field strength around traction substation is less than emission limit of substation,and field strength attenuates with distance increases.Field strength of power frequency is far less than the limitation of national regulation,which is in accordance with human’s health standard.EMR of Xijiang traction substation is less than emission limit,and has little interference to human body and surrounding weak facilities.
作者
曾小虎
马洪
皮从之
杨鹏
阎顺
袁绍华
石建峰
张育明
马林
庞淑萍
ZENG Xiaohu;MA Hong;PI Congzhi;YANG Peng;YAN Shun;YUAN Shaohua;SHI Jianfeng;ZHANG Yuming;MA Lin;PANG Shuping(School of Electronic Information and Communications,Huazhong University of Science and Technology, Wuhan 430074,China;Department of Electrification Design and Research, China Railway Siyuan Survey and Design Group Co.Ltd.,Wuhan 430063,China;Wuhan RF Spectrum Information Technology Co.Ltd.,Wuhan 430075,China)
出处
《电波科学学报》
EI
CSCD
北大核心
2018年第5期525-531,共7页
Chinese Journal of Radio Science
基金
湖北省科技厅科技支撑计划(2015BCE055)
华中科技大学创新研究计划(2015ZDTD017/2017KFXKJC012)
中铁第四勘察设计院项目(2016K66-1)
关键词
牵引变电所
电磁辐射
工频
无线电干扰
距离衰减特性
traction substation
electromagnetic radiation(EMR)
power frequency
radio interference
distance attenuation characteristic
