传感技术学报2017，Vol.30Issue(3)：385-390,6.DOI:10.3969/j.issn.1004-1699.2017.03.009
基于电场的快速暂态过电压测量
Measurement of VFTO Based on Electric Field Sensor
陈叶倩 1吴光敏 1张文斌 1谭向宇 2王科2
作者信息
- 1. 昆明理工大学,昆明 650500
- 2. 云南电网责任有限公司电力科学研究院,昆明 650011
- 折叠
摘要
Abstract
A measurement system based on electric field sensor was proposed,which is used to achieve the measurement of very fast transient overvoltage(VFTO)caused by switching operation of gas insulated substations(GIS).Used the miniature electric field sensor to measure electric field of GIS bus bar,calculated the linear relationship between electric field intensity and the voltage of bus bar according to experiments for hundreds times,calibrated the sensor,finished the measurement of VFTO.Firstly,analyzed the VFTO waveform characteristics and the requirements of measurement system;then,made VFTO modeling of different loads on the GIS;tested the response characteristics of the sensor which has the high-frequency cut-off frequency higher than 134 MHz;test the high amplitude of voltage measurements in the laboratory,finally the measurement system was applied in the ultra-high voltage test base of Yunnan power grid electric power research institute and measured for hundreds times,indicating the reliability of measurement of VFTO on electric field sensor.关键词
快速暂态过电压/气体绝缘变电站/电场传感器/开关操作电场Key words
very fast transient overvoltage/gas insulated substations/electric field sensor/switching operation electric field分类
信息技术与安全科学引用本文复制引用
陈叶倩,吴光敏,张文斌,谭向宇,王科..基于电场的快速暂态过电压测量[J].传感技术学报,2017,30(3):385-390,6.
