Reflective Detection Method of Partial Discharge Using Optical Fiber Sensor

被引：1
作者：
Xin G. [1 ,2 ,3 ]
Zhu J. [1 ]
Luo C. [2 ,3 ]
Li W. [4 ]
机构：
[1] School of Mechanical and Electrical Engineering, Changzhou College of Information Technology, Changzhou
[2] Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai University, Changzhou, Jiangsu Province
[3] College of Internet of Things Engineering, Hohai University, Changzhou
[4] School of Mechatronic Engineering, China University of Mining and Technology, Xuzhou
来源：
Journal of Optical Communications | 2020年 / 41卷 / 04期
关键词：
all-optical fiber current sensor; assembled magnetic effect; fiber birefringence errors; partial discharge;
D O I：
10.1515/joc-2017-0222
中图分类号：
学科分类号：
摘要：
Aiming at the characteristic of small amplitude of partial discharge current signal, all-optical fiber current sensing system is designed. Two kinds of optical fiber current sensor structures are proposed, which are linear and reflective. The optical path systems of two kinds of fiber optical current sensor are modeled based on Jones matrix. In addition, the output sensitivities of two structures are compared. The results indicate that the sensitivity of the two current sensor structures can be improved, and the output sensitivity of the reflective fiber optical current sensor is twice as high as that of the linear sensor. At the same time, the complete optical path model of optical fiber sensing system is established under the influence of fiber birefringence errors. Finally, the birefringence errors of sensing fiber are simulated. It is concluded that the reflective fiber optical current sensor can suppress the influence of linear birefringence on the accuracy of the sensing system by introducing a large amount of circular birefringence in the sensing fiber. © 2020 Walter de Gruyter GmbH, Berlin/Boston 2020.
引用
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页码：363 / 370
页数：7
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