Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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全光纤电流互感器长期温度稳定特性研究

来源:电工电气发布时间:2019-01-21 14:21 浏览次数:749
全光纤电流互感器长期温度稳定特性研究
 
胡浩亮1,黄俊昌1,夏历2,严震霖2,彭慎3
 
(1 中国电力科学研究院有限公司,湖北 武汉 430074;2 华中科技大学 光学与电子信息学院,湖北 武汉 430074;
3 长飞光纤光缆股份有限公司,湖北 武汉 430074)
 
    摘 要:互感器的关键器件之一是λ/4 波片。针对不完美λ/4 波片对系统的温度补偿作用,阐述了光纤电流互感器的原理,分析了传感环的温度特性,并给出了一组实验验证,实验结果表明,在没有温度补偿算法的情况下,相位延迟约为108°的波片相对于标准的波片对比差变化范围有0.9% 的改善,较大地提高了系统的性能。
    关键词:全光纤电流互感器;电力计量;λ/4 波片;温度补偿
    中图分类号:TM452     文献标识码:A     文章编号:1007-3175(2019)01-0005-05
 
Study on Long-Term Temperature Stability Characteristics of Fiber Optical Current Transformer
 
HU Hao-liang1, HUANG Jun-chang1, XIA Li2, YAN Zhen-lin2, PENG Shen3
 
(1 China Electric Power Research Institute Co. Ltd, Wuhan 430074, China;
2 Huazhong University of Science and Technology , School of Optical and Electronic Information, Wuhan 430074, China;
3 Yangtze Optical Fiber and Cable Joint Stock Limited Company, Wuhan 430074, China)
 
    Abstract: One of the key components of the transformer is the λ/4 wave plate. Aiming at the temperature compensation of the imperfect λ/4 wave plate to the system, this paper expounded the principle of optical current transformer, analyzed the temperature characteristic of sensing ring and gave a set of experimental verification. The experimental results show that without temperature compensation algorithm, there is 0.9% improvement on ratio error by replacing the standard wave plate with an imperfect λ/4 wave plate which has a phase delay of about 108°, so as to greatly improve the performance of the system.
    Key words: fiber optical current transformer; power metering; λ/4 wave plate; temperature compensation
 
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