高压电缆接头局部放电声光联合检测系统设计与实现  

Design and implementation of partial discharge acousto-optic joint detection system for high voltage cable connector

作　　者：唐波 邱浩宇 吴慧娟 TANG Bo;QIU Haoyu;WU Huijuan(Key Lab of Optical Fiber Sensing and Communication(Ministry of Education),School of Information and Communication Engineering,University of Electronic Science and Technology of China(UESTC),Chengdu 611731,China)

机构地区：[1]电子科技大学信息与通信工程学院,光纤传感与通信教育部重点实验室,四川成都611731

出　　处：《电气应用》2021年第5期10-20,共11页Electrotechnical Application

基　　金：国家自然基金重大项目(61290312);国家自然基金重大仪器专项(41527805);国家自然基金青年基金项目(61301275);国家电网项目(5455HT160014);教育部创新团队(PCSIRT,IRT1218);111创新引智项目(B14039)。

摘　　要：针对传统局部放电检测系统成本高.易受电磁干扰.检测距离和准确性有限等缺点,基于超声与紫外两种非电气局部放电检测技术,利用超声传感技术实现近端局部放电信号的高灵敏、动态和精确捕获,利用空气中紫外光比超声信号衰减慢弥补超声的检测距离极限,综合实现复杂电磁干扰环境下远距离、非接触、信息可靠和低成本的高压电缆接头处局部放电状态的实时动态检测。经实验验证,该系统设计具有较强的实用性,并可以达到10m的有效检测距离。In view of the shortcomings of traditional partial discharge detection system, such as high cost, easy to be affected by electromagnetic interference, limited detection distance and accuracy, ultrasonic sensing technology is used to achieve high sensitivity, dynamic and accurate acquisition of near end partial discharge signal based on ultrasonic and ultraviolet non electrical partial discharge detection technology, and ultraviolet light in the air is used to make up for the detection distance limit of ultrasonic to realize the real-time dynamic detection of partial discharge at the connector of high-voltage cable with long-distance, non-contact, reliable information and low cost under complex electromagnetic interference environment. The experimental results show that the system design has strong practicability, and can achieve an effective detection distance of 10 m.

关 键 词：电缆局部放电检测 声光检测 非接触检测 

分 类 号：TM855[电气工程—高电压与绝缘技术]