Analysis for effect of fiber-optic current transformer on protection accuracy and reliability

被引：6
作者：
机构：
[1] School of Electrical Engineering, Southeast University
[2] Jiangsu Electric Power Company Research Institute
来源：
Xu, Y. (yrabbits@163.com) | 1600年 / Automation of Electric Power Systems Press卷 / 37期
关键词：
Defect classification; Fiber-optic current transformer (FOCT); Reliability; Transient performance; Verdet constant;
D O I：
10.7500/AEPS201212032
中图分类号：
学科分类号：
摘要：
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. © 2013 State Grid Electric Power Research Institute Press.
引用
收藏
页码：119 / 124
页数：5
相关论文
共 10 条
  • [1] Short S.X., Tselikov A.A., de Arruda J.U., Et al., Imperfect quarter-waveplate compensation in Sagnac interferometer-type current sensors, Journal of Lightwave Technology, 16, 7, pp. 1212-1219, (1998)
  • [2] Pei H., Zu J., Chen H., Research on all fiber-optical current transducer, Journal of Electronic Measurement and Instrument, 22, 4, pp. 34-38, (2008)
  • [3] Wang X., Zhang C., Zhang C., Et al., A new all-digital closed-loop fiber optic current transformer, Automation of Electric Power Systems, 30, 16, pp. 77-80, (2006)
  • [4] Zhang C., Zhang C., Wang X., Et al., Temperature compensation methods of λ/4 wave plate for fiber optic current sensor, Transactions of China Electrotechnical Society, 23, 12, pp. 55-59, (2008)
  • [5] Wang L., Yang Z., Yin M., Et al., Simulation and test of dynamic performance of digital closed-loop fiber optic current transducer, Chinese Journal of Scientific Instrument, 31, 8, pp. 1890-1895, (2010)
  • [6] Zhao J., Feng L., Zhang C., Optimum design of fiber optical current sensor, Optical Technique, 31, 6, pp. 918-920, (2005)
  • [7] Li H., Li F., Hua X., The principles and application research on all-optical electronic current transformers, East China Electric Power, 39, 5, pp. 776-777, (2011)
  • [8] Li C., Zhang C., Wang X., Et al., Key techniques of reflective Sagnac interferometer-type fiber optic current transformers, Automation of Electric Power Systems, 37, 12, pp. 104-108, (2013)
  • [9] Wang W., Wu W., Wang X., Effect of modulator modulation coefficient on measuring accuracy of fiber optic current sensor, Automation of Electric Power Systems, 36, 24, pp. 64-68, (2012)
  • [10] Xiao H., Liu B., Wan S., Et al., Temperature error compensation technology of all-fiber optical current transformers, Automation of Electric Power Systems, 35, 21, pp. 91-95, (2011)
1