基于近场测量的串联故障电弧传感器  

Series fault arc sensor based on near-field measurement

作　　者：杨卓 蔡晓斌 吴波 谭向宇 唐立军 张文斌[2] YANG Zhuo;CAI Xiaobin;WU Bo;TAN Xiangyu;TANG Lijun;ZHANG Wenbin(Electric Power Research Institute of Yunnan Power Grid Co,Kunming 650504,China;College of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming 650504,China)

机构地区：[1]云南电网有限责任公司电力科学研究院,云南昆明650504 [2]昆明理工大学机电工程学院,云南昆明650504

出　　处：《传感器与微系统》2022年第5期99-101,105,共4页Transducer and Microsystem Technologies

基　　金：云南省科技揭榜项目(202104BN050011)。

摘　　要：为了解决线路中串联故障电弧检测识别率低和成本高的问题,设计了一种基于电场测量的环形电弧传感器。将传感器安装在负载与易发生电弧的线路之间,根据非接触近场感应原理直接对采集到的工频和电弧的电场信号进行简单的波形分析,无需复杂的算法,即可实现对故障电弧的准确测量。同时搭建故障电弧实验平台,模拟线路中不同负载和在故障电弧状态下的波形。实验结果表明:设计的传感器可以直接通过电场波形实现电弧的检测,无需区分负载类型,对故障电弧的识别率均在75%以上,误判率平均为3%。In order to solve the problems of low recognition rate and high cost of series fault arc detection in line,a ring arc sensor based on electric field measurement is designed.The sensor is installed between the load and the line prone to arc.According to the principle of non-contact near-field induction,the collected power frequency and the electric field signal of the arc can be directly analyzed by simple waveform analysis.Without complex algorithm,accurate measurement of fault arc can be realized.At the same time,a fault arc experimental platform is built to simulate the waveforms of different loads and fault arc states in the line.The experimental results show that the designed sensor can directly detect the arc through the electric field waveform without distinguishing the load type.The recognition rate of fault arc is above 75 %,and the average misjudgment rate is 3 %.

关 键 词：串联故障电弧 非接触 电弧传感器 负载类型 电场测量 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]