电力系统自动化Issue(13)：137-143,7.DOI:10.7500/AEPS20140924007
全光纤电流互感器受导体偏心影响的机理
Influence Mechanism of Conductor Eccentricity on All-fiber Optic Current Transformers
摘要
Abstract
In view of the influence of conductor eccentricity on the all-fiber optic current transformers (FOCTs), the corresponding distributed parameter model for the sensing coils of FOCTs is developed based on the distributed parameter model for sensor sections of optic current transformers.Based on the distributed parameter model of sensing coils,the influence mechanism of conductor eccentricity on FOCTs is proposed.The mechanism reveals the reasons for leading to the eccentricity problem of FOCT,i.e.,the combined effect of sensing fiber linear birefringence and nonuniform magnetic field on the sensing coil.The influence of measured conductor eccentricity on the measuring accuracy is analyzed.The conclusion that the eccentricity could only influence the ratio error of FOCT instead of linearity is obtained.The results of theoretical analysis are in agreement with experimental results,which shows the correctness of the theory and conclusion proposed. This work is supported by Heilongjiang Provincial Natural Science Foundation of China(No.E201237)and Fundamental Research Funds for the Central Universities(No.HIT.NSRIF.2013018).关键词
全光纤电流互感器/分布参数模型/偏心问题/比差Key words
all-fiber optic current transformer (FOCT)/distributed parameter model/eccentricity problem/ratio error引用本文复制引用
程嵩,张国庆,郭志忠,申岩,于文斌..全光纤电流互感器受导体偏心影响的机理[J].电力系统自动化,2015,(13):137-143,7.基金项目
黑龙江省自然科学基金资助项目(E201237) （E201237）
中央高校基本科研业务费专项资金资助项目(HIT.NSRIF.2013018)。 （HIT.NSRIF.2013018）
