| 一种新型具有温度补偿功能的光纤光栅交流电流互感器 |
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| 引用本文： | 孙菲菲,赵洪,张开玉. 一种新型具有温度补偿功能的光纤光栅交流电流互感器[J]. 光电子．激光, 2015, 26(12): 2288-2293 |
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| 作者姓名： | 孙菲菲 赵洪 张开玉 |
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| 作者单位： | 哈尔滨理工大学 测控技术与通信工程学院,工程电介质及应用技术教育 部重点实验室,黑龙江 哈尔滨 150080;哈尔滨理工大学 测控技术与通信工程学院,工程电介质及应用技术教育 部重点实验室,黑龙江 哈尔滨 150080;哈尔滨理工大学 测控技术与通信工程学院,工程电介质及应用技术教育 部重点实验室,黑龙江 哈尔滨 150080 |
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| 基金项目： | 黑龙江省科技攻关(GZ11A407)资助项目 (哈尔滨理工大学测控技术与通信工程学院,工程电介质及应用技术教育 部重点实验室,黑龙江哈尔滨 150080) |
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| 摘 要： | 为了消除温度对实现电流测量的影响,提出了一种具有温度补偿 功能的光纤Bragg光栅(FBG)交流电流互感器。利用两个FBG和超磁致伸缩材料(GMM)组成的 传感单元分别放置在两个相邻对称的铁磁回中,并加上两个方向相反的直流偏置磁场,利用 匹配检测方法对两只FBG进行解调,实现交流的测量。测量结果表明,在温度的影响下,系 统的静态工作点几乎未发生变化,在线性区测得最大电流为93.78A , 可获得1.68%的满量程精度。这种FBG电流传感器不仅可以测量交流电 流,也可以实现直流电流的测量。
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| 关 键 词： | 电流互感器 光纤Bragg光栅(FBG) 温度补偿 |
| 收稿时间： | 2015-09-12 |
A novel fiber Bragg grating ac current transformer with temperature-compensatio n |
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| Affiliation: | Key Laboratory on Engineering Dielectric and Its Application of Ministry of Edu cation,College of Measurement and Control Technology and Communication Engineeri ng,Harbin University of Science and Technology,Harbin 150080,China;Key Laboratory on Engineering Dielectric and Its Application of Ministry of Edu cation,College of Measurement and Control Technology and Communication Engineeri ng,Harbin University of Science and Technology,Harbin 150080,China;Key Laboratory on Engineering Dielectric and Its Application of Ministry of Edu cation,College of Measurement and Control Technology and Communication Engineeri ng,Harbin University of Science and Technology,Harbin 150080,China |
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| Abstract: | In order to eliminate the influence of the temperature in current measurement,a fiber Bragg grating (FBG) al ternative cu rrent transformer with temperature compensation is proposed.Two FBGs and the gia nt magnetostrictive material (GMM) which is composed of sensing unit are placed in t wo adjacent and symmetrical ferromagnetic circuits,respectively.The ferromagnetic circuits are loaded with t wo opposite direct current bias magnetic fields.We realize the demodulation of two fiber FBGs and the measuremen t of alternative current by using matching detection.Finally,it is suggested that with the influence of temperature,the static working point of the system is almost unchanged,and in the linear region,the maximum measured current is 93.78A with 1.68% full scale accuracy.This kind of FBG current sensor can not only measure alternative curren t but also realize direct current measurement. |
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| Keywords: | current transformer fiber Bragg grating (FBG) temperature compensation |
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