Partial Discharge Ultrasonic Detection Based on Sagnac Optical Interference Technique

被引：2
|
作者：
Jiang, Jun [1 ]
He, Yaqian [1 ]
Song, Yu [2 ]
Wang, Ruizhi [1 ]
Li, Xiaohan [3 ]
Ma, Guoming [4 ,5 ]
Wu, Qiang [6 ,7 ]
Liu, Jun [8 ]
机构：
[1] Nanjing Univ Aeronaut & Astronaut, Jiangsu Key Lab New Energy Generat & Power Conver, Nanjing 211106, Jiangsu, Peoples R China
[2] State Grid Huzhou Power Supply Co, Hangzhou 313000, Peoples R China
[3] State Grid Jiangsu Elect Power Co Ltd, Res Inst, Nanjing 211103, Peoples R China
[4] North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China
[5] North China Elect Power Univ, Beijing Key Lab High Voltage & EMC, Beijing 102206, Peoples R China
[6] Northumbria Univ, Fac Engn & Environm, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
[7] Nanchang Hangkong Univ, Key Lab Nondestruct Test, Minist Educ, Nanchang 330063, Jiangxi, Peoples R China
[8] Hangzhou Qianjiang Elect Grp Co Ltd, Hangzhou 311243, Peoples R China
来源：
IEEE SENSORS JOURNAL | 2023年 / 23卷 / 22期
基金：
中国博士后科学基金;
关键词：
Interference; optical fiber sensor (OFS); partial discharge (PD); polarization state; sensitivity; FIBER SENSOR; LOCALIZATION;
D O I：
10.1109/JSEN.2023.3321934
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Partial discharge (PD) ultrasonic detection based on optical interference technique shows practical advantages such as anti-electromagnetic interference, intrinsic safety, and implantability of power equipment, but sensitivity improvement is still a necessity. In this article, the sensitivity is improved by polarization state control and interference structure parameter adjustment. For the disorder of polarization state in the interference system, the detection sensitivity within 20-300 kHz can be improved by 6.48 dB with the help of polarization control. In order to meet the PD detection requirements for various power apparatus, an optical PD detection method based on Sagnac interference structure is proposed. The frequency response can be dynamically adjusted according to the type of PD signals. For the typical PD model in the air, the frequency response of the sensor can be controlled at 20-100 kHz by using a 2000 m delay fiber, and the detection amplitude of the sensor is 5.85 times than that of the conventional piezoelectric transducer (PZT) sensor. For the detection of PD signals in insulating oil, the frequency response can be moved to 20-160 kHz by using a delay fiber with length of 500 m, and the detection amplitude of the sensor is 12.68 times than that of PZT sensor. Therefore, the proposed PD sensor based on the Sagnac interference shows the advantages of adjustable frequency response, multiscenario application, and high detection sensitivity.
引用
收藏
页码：27382 / 27389
页数：8
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