用于检测架空线路局放的近场磁场探头研究  

Research on Near Field Magnetic Field Probe for Partial Discharge Detection of Overhead Line

作　　者：徐志鹏 张文斌[1] 赵晶晶 XU Zhipeng;ZHANG Wenbin;ZHAO Jingjing(School of Mechanical and Electrical Engineering,Kunming University of Science and Technology,Kunming Yunnan 650093,China;School of Science,Kunming University of Science and Technology,Kunming Yunnan 650093,China)

机构地区：[1]昆明理工大学机电工程学院,云南昆明650093 [2]昆明理工大学理学院,云南昆明650093

出　　处：《传感技术学报》2025年第3期408-415,共8页Chinese Journal of Sensors and Actuators

基　　金：云南省科技厅科技计划项目(202104BN050011)。

摘　　要：局部放电检测常用于判断电力系统的运行状况。在架空线路上,若发生局部放电现象,则存在绝缘子污秽、老化,线路断股,树木以及建筑物与输电线路接触等安全隐患。若不及时检测和排除,局部放电进一步发展则可能导致严重事故。针对上述问题,设计了一种新型的近场磁场探头,用于检测架空线路上局部放电产生的电磁波信号。所设计的探头主要结构为电小环结构,探头主要采用无人机搭载的方式对架空线路进行近场局放检测。探头最终尺寸为长166 mm、宽104 mm、厚2 mm,重量为30 g。最后通过搭建局部放电实验平台验证了探头的性能。Partial discharge detection is often used to judge the operation of power system.On overhead lines,if partial discharge oc-curs,there are potential safety hazards such as polluted insulators,aging,line strand breakage,tree and building contact with transmis-sion lines.If not detected and removed in time,further development of partial discharge may lead to serious accidents.To solve these problems,a new near-field magnetic field probe is designed to detect the electromagnetic wave signal generated by partial discharge on overhead lines.The main structure of the probe designed is a small ring.The probe is mainly installed on the unmanned aerial vehicle to carry out short distance partial discharge detection on overhead lines.The final size of the probe is 166 mm long,104 mm wide,2 mm thick and 30 g heavy.Finally,the performance of the probe is verified by building a partial discharge test platform.

关 键 词：架空线路 局部放电 电小环天线 磁场探头 近场测量 

分 类 号：TM937[电气工程—电力电子与电力传动]