光纤电流互感器对保护精度和可靠性的影响分析

XU Yang

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光纤电流互感器对保护精度和可靠性的影响分析

更新时间：2025-08-13

- 光纤电流互感器对保护精度和可靠性的影响分析
- Automation of Electric Power Systems Vol. 37, Issue 16, Pages: 119-124(2013)
- 作者机构：
  
  东南大学电气工程学院,江苏省,南京市,210096
- 作者简介：
- 基金信息：
- DOI：
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- Published：2013
- 稿件说明：
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XU Yang. [J]. Automation of electric power systems, 2013, 37(16): 119-124.
DOI：

XU Yang. [J]. Automation of electric power systems, 2013, 37(16): 119-124. DOI：

摘要

光纤电流互感器具有无饱和、动态范围大等优点，在智能变电站和直流输电工程中有一定应用。文中从光纤电流互感器原理及结构出发，分析其对交、直流系统的暂态响应特性及对保护应用的影响;研究Verdet常数、光粒子性、环境温度、光学器件老化等因素对互感器精度的影响及对保护的影响;分析其数字化采样、光纤施工、安装极性等带来的保护可靠性问题，并提出应对策略;提出了提高光纤电流互感器可靠性的方法和技术应用水平。

Abstract

With its advantages of freedom from saturation and large dynamic range，the fiber-optic current transformer（FOCT）has definite applications in smart substations and DC transmission projects.Based on the principle and structure of FOCT，its influence on the AC and DC transient response characteristics and protective application is dealt with.The influence of such factors as the Verdet constant，particle nature of light，ambient temperature，optical components aging on the transformer accuracy and protection is studied.Also analyzed is the problem of protection reliability brought about by the characteristics of digital sampling，fiber installation and polarity.Countermeasures are proposed as the measures to improve the reliability of FOCT in application.

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