测量线路故障行波电流的新型罗氏线圈传感器试验与应用  

Test and Application of a New Roche Coil Sensor for Measuring Traveling Wave Current of Line Faults

作　　者：王鑫红 赵海龙 秦力[1] 张明宇 王美娟 Wang Xinhong;Zhao Hailong;Qin Li;Zhang Mingyu;Wang Meijuan(School of Architectural Engineering,Northeast Electric Power University,Jilin Jilin 132012;Hainan Power Grid Co.,Ltd.Institute of Electric Power Science,Haikou Hainan 570105;College of Mechanical and Electrical Engineering,Hainan University,Haikou Hainan 570228)

机构地区：[1]东北电力大学建筑工程学院,吉林吉林132012 [2]海南电网有限责任公司电力科学研究院,海南海口570105 [3]海南大学机电工程学院,海南海口570228

出　　处：《现代工业经济和信息化》2019年第11期74-76,共3页Modern Industrial Economy and Informationization

摘　　要：提出一种开口式半圆型结构的新型罗氏线圈,此种结构的罗氏线圈用于输电线路故障定位装置中,用来监测故障行波波形找出波头。通过线性度实验,得出在0.1~100 A时线性度为1.9%,灵敏度为13.05 mV/A:在100~1 000 A时线性度为0.59%,灵敏度为13.26 mV/A。现场实验验证了在幅值0.1~1 000 A动态范围内可以准确的监测故障行波波形、找出波头,从而进行故障定位。A new Rogowski coil with an open semicircular structure is proposed, which can be used in the fault locating unit of the transmission line to monitor the fault traveling wave waveform and find the wave head.Through the linearity experiment, the linearity is 1.9% at 0.1 A^100 A and the sensitivity is 13.05 mV/A: the linearity is 0.59% and the sensitivity is 13.26 mV/A at 100 A^1000 A. Field experiments have verified that the fault traveling wave waveform can be accurately monitored and the wave head can be found in the dynamic range of0.1 A^1000 A, so as to locate the fault.

关 键 词：罗氏线圈 开口式半圆型 行波电流 

分 类 号：TM755[电气工程—电力系统及自动化]