特快速空间辐射暂态电磁场测量装置研究
Research on extra fast space radiation transient electromagnetic field measurement device
完朋朋 1吴细秀 1杨涛 2文博 1侯博文 1龙国华3
作者信息
- 1. 武汉理工大学,湖北武汉 430070
- 2. 贵州电网有限责任公司电力科学研究院,贵州贵阳 550002
- 3. 国网江西省电力有限公司电力科学研究院,江西南昌 330096
- 折叠
摘要
为研究隔离开关操作条件下GIS的瞬态辐射电磁场特性,该文开展特快速高频辐射电磁场测量装置的研制.开关操作辐射电磁场具有上升陡度大、幅值高、频带宽等特点,因此该文选择双锥天线和电小环天线进行电场和磁场的测量,设计特快速辐射电场、磁场与VFTO联合测量方案.通过特快速高频辐射电磁场测量装置对 550 kV GIS试验平台隔离开关操作产生的特快速辐射电场、磁场进行测量.结果表明:开关操作时GIS变电站电磁环境极其恶劣,分闸时电场强度可达 3.5 kV/m,磁场强度可达 220 A/m;合闸时电场强度为 2.5 kV/m,磁场强度为 150 A/m.单次脉冲持续时间约5 μs,主要频率成分为8 MHz,46 MHz,58 MHz.
Abstract
In order to research the transient radiated electromagnetic field characteristics of GIS under isolated switch operating conditions,the paper carries out the development of an ultra-fast high frequency radiated electromagnetic field measurement device.The radiation electromagnetic field of switch operation has the characteristics of large steepness of rise,high amplitude and wide frequency band,so this paper selects biconical antenna and electric small loop antenna for electric field and magnetic field measurement,and designs a joint measurement scheme of ultra-fast radiation electric field,magnetic field and VFTO.The measurements of the electric and magnetic fields generated by the isolation switch operation of the 550 kV GIS test platform are carried out by means of an ultra-fast high frequency radiation electromagnetic field measurement device.The results show that the electromagnetic environment of the GIS substation is extremely harsh during switch operation,with the electric field intensity reaching 3.5 kV/m and the magnetic field intensity reaching 220 A/m when the switch is opened;The electric field intensity reaching 2.5 kV/m and the magnetic field intensity reaching 150 A/m when the switch is closed.the duration of a single pulse is about 5 μs and the main frequency components are 8 MHz,46 MHz and 58 MHz.
关键词
隔离开关/电磁辐射/天线/数据处理/单次脉冲/GISKey words
isolating switch/electromagnetic radiation/antenna/data processing/single pulse/GIS引用本文复制引用
基金项目
贵州电网有限责任公司科技项目(066600KK52170049)
出版年
2024
NETL
NSTL
万方数据