[1]高超飞,宋树,童中宇,等.基于EFPI光纤超声传感器的油中局部放电定位[J].高压电器,2019,55(04):90-95.[doi:10.13296/j.1001-1609.hva.2019.04.013]
 GAO Chaofei,SONG Shu,TONG Zhongyu,et al.Partial Discharge Location in Oil Based on EFPI Optical Fiber Ultrasonic Sensor[J].High Voltage Apparatus,2019,55(04):90-95.[doi:10.13296/j.1001-1609.hva.2019.04.013]
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基于EFPI光纤超声传感器的油中局部放电定位()
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《高压电器》[ISSN:1001-1609/CN:61-11271/TM]

卷:
第55卷
期数:
2019年04期
页码:
90-95
栏目:
研究与分析
出版日期:
2019-04-15

文章信息/Info

Title:
Partial Discharge Location in Oil Based on EFPI Optical Fiber Ultrasonic Sensor
文章编号:
0090-0095
作者:
高超飞1 宋树2 童中宇3 王伟1
1. 华北电力大学高电压与电磁兼容北京重点实验室,北京102206;2. 国网安徽省电力有限公司物资分公司, 合肥230061;3. 国网安徽省电力有限公司合肥供电公司,合肥230022
Author(s):
GAO Chaofei1SONG Shu2TONG Zhongyu3WANG Wei1
1. Beijing Key Laboratory of High Voltage & Electromagnetic Compatibility,North China Electric Power University,Beijing 102206, China;2. State Grid Anhui Procurement Company,Hefei 230061,China;3. State Grid Anhui Electric Power Co.,Ltd.,Hefei Power Supply Co.,Hefei 230022,China
关键词:
局部放电超声波定位EFPI传感器可控响应功率
Keywords:
partial dischargeultrasonic positioningEFPI sensorsteered response power
DOI:
10.13296/j.1001-1609.hva.2019.04.013
摘要:
非本征法布里帕罗干涉(extrinsic fabry?perot interferometric,EFPI)的光纤超声传感器灵敏度高,不受电 磁干扰的影响,文中将其应用于油中局部放电定位。首先设计了2×2的EFPI超声传感器阵列,可放置在油 中检测局放超声波信号;然后根据可控响应功率(steered response power,SRP)声源定位理论对局放源进行定 位;最后应用SRP和多重信号分类(multiple signal classification,MUSIC)算法处理实验信号并进行对比。结 果表明文中设计的EFPI传感器阵列能够在油中检测到信噪比较高的局部放电信号;SRP算法测向误差小于 MUSIC算法,能够根据单次测量实现定位,但定位精度有待进一步提高。文中提出的方法对于EFPI光纤超 声传感器在电气设备局部放电定位方面的实际应用具有参考意义。
Abstract:
Extrinsic fabry?perot interferometric(EFPI)optical fiber ultrasonic sensor has high sensitivity and is not affected by electromagnetic interference. This paper applies it to partial discharge(PD)localization in oil. First a 2 × 2 EFPI ultrasonic sensor array is designed,which can be placed in the oil to detect PD ultrasonic signal. Then according to the steered response power(SRP)sound source localization theory to locate PD. Finally SRP and MU? SIC(multiple signal classification)algorithms are used to process the experimental signals and compared. The re? sults show that the EFPI sensor array can detect the partial discharge signal with high SNR in the oil. The SRP algo? rithm has less error than the MUSIC algorithm and can locate PD according to a single measurement,but the posi? tioning accuracy should be further improved. The method proposed in this paper has reference significance for the practical application of EFPI optical fiber ultrasonic sensor in partial discharge positioning of electrical equipment.

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备注/Memo

备注/Memo:
收稿日期:2018?08?21; 修回日期:2018?10?19 基金项目:国家自然科学基金资助项目(51577063)。 Project Supported by National Natural Science Foundation of China(51577063). 高超飞(1986—),男,博士研究生,研究方向为电气设备 在线监测与故障诊断。 宋树(1991—),男,硕士研究生,主要从事电气设备在 线监测与故障诊断。 页码:95+101
更新日期/Last Update: 2019-04-16