传感技术学报2017，Vol.30Issue(11)：1619-1624,6.DOI:10.3969/j.issn.1004-1699.2017.11.001
基于光纤传感技术的局部放电超声信号检测方法研究
Study on Partial Discharge Ultrasonic Signal Detection Method Based on Optical Fiber Sensing Technology
摘要
Abstract
The partial discharge of power equipment can easily cause electrical short-circuit fault and the traditional e-lectrical measurement for single-point measurement has limitations in the long-distance measurement.The characteris-tics of partial discharge are analyzed,a kind of fiber ring structure is designed and a partial discharge detection scheme based on the interference principle of Sagnac is constructed. In the laboratory environment,the partial dis-charge of the power equipment is simulated and a partial discharge optical fiber detection system is built. The partial discharge detection is carried out on the fiber with the total fiber length of 8.398 km. The experimental results show that the amplitude of partial discharge is between 0.1 V~1.8 V and the frequency response range is up to 60 kHz at 10 kV voltage level.The research shows that the method has the characteristics of high sensitivity and wide frequency re-sponse range,which provides a new idea for partial discharge detection of power equipment.关键词
电力设备/局部放电/光纤传感/萨格耐克/时域分析/频域分析Key words
power equipment/partial discharge/optical fiber sensing/sagnac/time-domain analysis/frequency-domain analysis分类
信息技术与安全科学引用本文复制引用
李晓敏,高妍,王宇,靳宝全,张红娟,王东..基于光纤传感技术的局部放电超声信号检测方法研究[J].传感技术学报,2017,30(11):1619-1624,6.基金项目
国家自然科学基金项目(51504161) （51504161）
山西省回国留学人员科研项目(2016-035) （2016-035）
山西省应用基础研究项目(201701D221115) （201701D221115）
山西省科技基础条件平台项目(201605D121028) （201605D121028）
