山东科学 ›› 2017, Vol. 30 ›› Issue (2): 55-60.doi: 10.3976/j.issn.1002-4026.2017.02.009

• 光纤与光子传感技术 • 上一篇    下一篇

变压器绕组光纤光栅温度传感器的优化设计

刘媛,赵林,王纪强,侯墨语,李振   

  1. 山东省光纤传感技术重点实验室,山东省科学院激光研究所, 山东 济南 250014
  • 收稿日期:2016-12-13 出版日期:2017-04-20 发布日期:2017-04-20
  • 作者简介:刘媛(1981—),女,助理研究员,硕士,研究方向为光纤传感技术。E-mail:yuan.liu@sdlaser.cn
  • 基金资助:

    2016年度山东省自然科学基金领军人才前瞻性研究专题项目(2016ZRC01104);山东省自然科学基金博士基金(ZR2016FB03)

Design and optimization of FBG based sensors for monitoring the temperature of transformer windings

LIU Yuan, ZHAO Lin, WANG Ji-qiang, HOU Mo-yu, LI Zhen   

  1. Shandong Provincial Key Laboratory of Optical Fiber Sensing Technologies, Laser Institute
     of Shandong Academy of Sciences, Jinan 250014, China
  • Received:2016-12-13 Online:2017-04-20 Published:2017-04-20

摘要:

基于光纤光栅原理,研制了直接测量变压器绕组内部温度的光纤传感器,对传感器的封装工艺、材料进行了优化设计,解决了热力场和应力影响问题。经过温度标定实验,对光纤温度传感器进行了温度校准。现场实验表明,光纤温度传感器与电子传感器的测量温度能够保持较好的一致性和重复性,测量灵敏度小于0.1 ℃,测量精度可达到±0.5 ℃,满足变压器绕组内部温度的实时在线检测要求。

关键词: 变压器绕组, 光纤光栅(FBG), 实时监测, 温度传感器

Abstract:

Based on the principle of fiber Bragg grating (FBG), an optical fiber sensor was designed to directly measure the internal temperature of transformer winding, and the packaging technology and material of the sensor were optimized, which could solve the problems caused by thermal field and stress. After the temperature calibration experiment, the temperature calibration was carried on to the optical fiber temperature sensors. The field experiment showed that good consistency and repetition of temperature measurement were kept between the optical fiber temperature sensor and the electronic sensor, and the system’s measurement sensitivity is less than 0.1 ℃, and the measurement accuracy is up to ±0.5 ℃, which meets the requirements of the realtime online detection of the internal temperature of the transformer winding.

Key words: fiber Bragg grating(FBG), real-time monitoring, temperature sensors, transformer winding

中图分类号: 

  • TP277

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