GIS开关操作空间瞬态辐射电场的特性研究  

Study on the EMI characteristics of GIS spatial radiation caused by disconnector operation

作　　者：杨涛 吴细秀[2] 黄良 吴建蓉 朱勇 黄军凯 许逵 YANG Tao;WU Xuxiu;HUANG Liang;WU Jianrong;ZHU Yong;HUANG Junkai;XU Kui(Electric Power Research Institute of Guizhou Power Co.,Ltd.,Guiyang0x0E0xFF0xF00xFF倓0x030x0F550002 Guizhou,China;Wuhan University of Technology,Wuhan 430070 Hubei,China;Kaili Power Supply Bureau of Guizhou Power Grid Co.,Ltd.,Guiyang 556000 Guizhou,China)

机构地区：[1]贵州电网有限责任公司电力科学研究院,中国贵州贵阳550002 [2]武汉理工大学,中国湖北武汉430070 [3]贵州电网有限责任公司凯里供电局,中国贵州贵阳556000

出　　处：《电力大数据》2021年第10期53-62,共10页Power Systems and Big Data

摘　　要：为清楚了解全封闭式气体绝缘变电站开关操作空间特快速瞬态电磁场的骚扰特性,在550kV全封闭式气体绝缘变电站真型试验平台上开展特快速瞬态辐射电磁场的试验研究,测量空间辐射电场骚扰波形。论文介绍了试验测量系统,包括特快速暂态过电压、电磁场联合测量系统的快速暂态过电压测量、电磁场测量、同步触发系统和光纤传输控制系统。给出了试验操作流程,并对测量结果进行了统计分析。得到了瞬态辐射电场脉冲群持续时间、脉冲个数,微脉冲持续时间、电场幅值等骚扰特性。对电场微脉冲波形进行频谱分析,并统计主要频点出现的概率。试验结果表明,电场脉冲群持续时间的范围为59ms-157ms,脉冲个数为40个-83个,微脉冲持续时间为4.584μs-9.592μs;辐射电场频率成分非常丰富,1MHz、7.5MHz、15MHz、20MHz和46.5MHz等频率出现概率较高。In order to clearly understand the disturbance characteristics of the transient electromagnetic field in GIS disconnector operation,the experimental research of transient electromagnetic field was carried out on the 550kV GIS true-type test platform to measure the disturbance waveform of the extra-fast transient electromagnetic field.This paper introduces the test measurement system,including VFTO,electric field,magnetic field measurement,VFTO measurement,magnetic field measurement,synchronous trigger system,and storage and remote control system of VFTO,electric field,and magnetic field joint measurement systems.The experimental operation process is given,and the measured results are analyzed statistically.The disturbance characteristics,such as group duration,number of pulses,micro-pulse duration and amplitude of electric field,are obtained.The frequency spectrum of the electric field micro-pulse waveform is analyzed and the probability of the main frequency point is calculated.The results show that the duration of electric field pulses is 59ms-157ms,the number of pulses is 40-83,and the duration of micropulses is 4.584μs-9.592μs,the frequencies of 1MHz,7.5 mhz,15MHz,20MHz and 46.5 mhz are higher.

关 键 词：瞬态电磁场 全封闭式气体绝缘变电站 快速暂态过电压 空间辐射 辐射电场频率 

分 类 号：TM866[电气工程—高电压与绝缘技术]