GIS电子式互感器内部电磁干扰研究  

Study on Internal Electromagnetic Interference in GIS Electronic Instrument Transformer

作　　者：成林 陶佳鑫 吴涛 卢江平 马雪杰 罗逸涵 毕闯[4] CHENG Lin;TAO Jiaxin;WU Tao;LU Jiangping;MA Xuejie;LUO Yihan;BI Chuang(State Grid Shaanxi Electric Power Company Electric Power Research Institute,Xi’an 710010,China;School of Electrical Engineering,Xi’an University of Technology,Xi’an 710048,China;State Grid Shaanxi Electric Power Company,Xi’an 710048,China;University of Electronic Science and Technology of China,Chengdu 611731,China;Xi’an Jiaotong University,Xi’an 710049,China)

机构地区：[1]国网陕西省电力有限公司电力科学研究院,西安710010 [2]西安理工大学电气工程学院,西安710048 [3]国网陕西省电力有限公司,西安710048 [4]电子科技大学,成都611731 [5]西安交通大学,西安710049

出　　处：《高压电器》2023年第9期211-218,共8页High Voltage Apparatus

基　　金：国网陕西省电力公司科技项目支持(5226KY190056)。

摘　　要：针对GIS隔离开关操作时电子式互感器内部电磁干扰问题,文章首先对电子式互感器进行了结构建模,基于偶极子天线的辐射理论模型对电子式互感内部的三维电磁场分布规律和强度开展分析,最终得到电子式互感器内部不同时刻的电磁场强度及其分布规律:在电磁骚扰产生0.5~2.5μs内电子式互感器内部电场强度较大,在3μs之后电场逐渐减小,在相同频率下,y轴方向电场最强,x轴方向磁场最强。In view of the problem of electromagnetic interference inside the electronic instrument transformer in the operation of GIS disconnector,the structural model of the electronic instrument transformer is set up firstly in this paper,the distribution and intensity of the three-dimensional electromagnetic field inside the electronic instrument transformer based on the radiation theoretical model of the dipole antenna is developed.Finally,the electromagnetic field intensity and its distribution in the electronic instrument transformer at different times are obtained.The internal electric field intensity of electronic instrument transformer within 0.5~2.5μs is higher.After 3μs,the electric field gradually decreases.At the same frequency,the electric field in the y-axis direction is the strongest and the magnetic field in the x-axis direction is the strongest.

关 键 词：GIS 电子式互感器 偶极子辐射模型 内部电磁干扰 

分 类 号：TM45[电气工程—电器]