变压器局放检测光纤超声传感器优化设计与分析

作者:张映月;张春燕;顾进;陆云才;高超飞;王伟; 刊名:电网与清洁能源 上传者:张宇

【摘要】光纤超声传感器凭借抗干扰能力强、灵敏度高等优点有望成为变压器局部放电在线监测的有效手段。简述了光纤超声传感器膜片和腔体设计的基本原理,从灵敏度和响应频率入手,分析了多种因素对灵敏度和响应频率的影响,并对传感器进行了优化设计最后在变压器本体上进行了局部放电检测试。结果表明,只要传感器安装位置合理,布置多个传感器就可以有效检测到变压器内部由局部放电产生的超声信号。

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第33卷 第1期 2017年1月 电网与清洁能源 Power System and Clean Energy 叠 夏 Smart Grid Vol|33 No.1 Jan.2017 文章编号:1674—3814(2017)01—0071—08 中图分类号:TM938 文献标志码:A 变压器局放检测光纤超声传感器优化设计与分析 张映月 ,张春燕·,顾进 ,陆云才z,高超飞s,王伟s (1.扬 州供 电公 司,江苏 扬州 225009;2.江苏电力科 学研究院,江苏 南京 210036;3.新能源电力 系统 国家重点实验室(华北电力大学 高电压与电磁兼容北京市重点实验室),北京 102206) Optimal Design and Analysis of EFPI Sensor in Transformer Partial Discharge Detection ZHANG Yingyue ,ZHANG Chunyan ,GU Jin ,LU Yuncai ,GAO Chaofei ,WANG W ei 【1.Yangzhou Power Supply Company,Yangzhou 225009,Jiangsu,China;2.Jiangsu Electric Power Research Institute,Nanjing 210036,Jiangsu,China;3.State Key Laboratory of Ahemate Electrical Power System with Renewable Energy Sources(Beijing Key Laboratory of High Voltage& EMC,Noah China Electric Power University),Beijing 102206,China) ABSTRACT: Optical fiber ultrasonic sensor with advantages of strong anti——interference ability and high sensitivity is expec—- ted to become an eective method for transformer partial discharge on-line monitoring.The basic principle of diaphragm and cavity design of the optical fiber ultrasonic sensor are briefly discussed in this paper,and from the perspective of the sensitivity and response frequency,the paper analyzes various factors influence on sensitivity and response~equeney,and the optimization design of the sensor.Finally,pa~ial discharge detection tests have been carried out in the transformer body, and the test results show that as long as the sensors’installation locations are reasonable,the arr

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