光学电流互感器的性能分析与试验研究  

Performance analysis and experimental investigation of optical current transducers

作　　者：于文斌[1] 李岩松[2] 张国庆[1] 高桦[2] 郭志忠[1] 杨以涵[2] 

机构地区：[1]哈尔滨工业大学电气工程系,黑龙江哈尔滨150001 [2]华北电力大学电力系,北京102206

出　　处：《哈尔滨工业大学学报》2006年第3期353-356,共4页Journal of Harbin Institute of Technology

基　　金：国家自然科学基金资助项目(50347023)

摘　　要：介绍了一种基于Faraday磁光效应的光学电流互感器.通过稳态参考模型,建立了一种自适应校正的补偿方法,有效地提高了光学电流互感器的测量精度.根据IEC 60044-8标准,对设计的样机进行了详细的性能测试.试验结果表明:研制的样机能准确高保真地反映被测电流,在-40^+60℃,稳态测量精度优于0.2%.根据一年多的现场运行数据,通过光学传感头输出本底光强的波动性对样机的长期运行稳定性进行了分析.研制的光学电流互感器在测量精度和运行稳定性方面达到了实用化的要求.A type of optical current transducer （OCT） based on Faraday magneto-optic effect is introduced. In order to improve the measurement performances of OCT, a novel compensation method based on steady state reference model is proposed, which is defined as independent value self-adaptation adjustment technique. According to the standard of IEC 60044 - 8, the performance tests are carried out in detail. The test results indicate that the designed prototype of OCT can reflect the measured current accurately, and the steady state metering accuracy exceeds 0. 2% within the temperature range from -40 to ＋60℃. A prototype has been running in the field for about eighteen months, and the operational state is well. According to the field data, the longterm stability of OCT is analyzed by discussing the fluctuation of output light intensity of the optical sensing head. The designed OCT has achieved the requests in the field of measurement accuracy and operation stability.

关 键 词：光学电流互感器 温度影响 稳态精度 暂态性能 运行稳定性 

分 类 号：TM452[电气工程—电器]