全光纤电流互感器的研究现状

Present Research Situation of All-Fiber-Optical Current Transformer

光纤电流互感器因其具有绝缘性能好、安全性高、动态范围大、测量精度高、输出数字化等特点,在电力系统中具有广阔的应用前景。本文比较了传统电磁式电流互感器和光纤电流互感器的性能,阐述了光纤电流互感器Faraday磁光效应原理及全光纤电流互感器的常见结构模型,回顾了近年来全光纤电流互感器的研究情况,归纳分析了其研究和实用化过程中的关键问题和解决方法。

Fiber Optical Current Transformers have broad application prospects in the power system because of its good insulation properties, high safety, wide dynamic range, high accuracy, digital output, etc. The performance of the traditional electromagnetic current transformer and Fiber Optical Current Transformer are compared in this paper. The Faraday magneto-optic effect principle of Fiber Optical Current Transformer and the typical structural models of All-Fiber-0ptical Current Transformer are described. Additionally, the recent research ad- vance of All-Fiber-Optical Current Transformer is reviewed, and its key problems and solutions that appeared in the research and practical procedure are summed up.