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.
作者
成林
陶佳鑫
吴涛
卢江平
马雪杰
罗逸涵
毕闯
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)
出处
《高压电器》
CAS
CSCD
北大核心
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)。
关键词
GIS
电子式互感器
偶极子辐射模型
内部电磁干扰
GIS
electronic instrument transformer
dipole radiation model
internal electromagnetic interference
