光纤电流互感器误差研究凝聚态物理专业论文.docxVIP

On the Errors of All Fiber Optical Current Transformers Abstract With the development of modern power system, the development of OCT will greatly speed up the trend of the power equipment in direction of small size, automation and high reliability, which will take place of the traditionally used electromagnetic current transformer. On the basis of analyzing the FOCT’s principle, employing Jones’ Matrix as a mathematical tool, the expression of interference of FOCT in ideal circumstance is set up. The effects of the extinction ratio and the bias angle error of the polarizer and the phase modulator upon the output characteristice of the FOCT system are theoretically analyzed in detail. These results may have useful reference value on the performance improvement of the present FOCT and the development of practical FOCT. Keyword：Fiber optical current transformers, Polarization error, Jones matrix, Error Analysis 目 录 HYPERLINK \l _bookmark0 1．绪论………………………………………………………………………………………1 HYPERLINK \l _bookmark1 2．电流互感器的分类……………………………………………………………………3 HYPERLINK \l _bookmark1 2.1 电磁式电流互感器…………………………………………………………………3 HYPERLINK \l _bookmark1 2.2 光学电流互感器……………………………………………………………………3 HYPERLINK \l _bookmark2 2.2.1 有源型光学电流互感器……………………………………………………4 HYPERLINK \l _bookmark3 2.2.2 无源性光学电流互感器……………………………………………………5 HYPERLINK \l _bookmark4 2.3 几种互感器的比较…………………………………………………………………7 HYPERLINK \l _bookmark4 2.3.1 有源型OCT与传统电流互感器比较………………………………………7 HYPERLINK \l _bookmark4 2.3.2 无源型 OCT与传统电流互感器比较………………………………………8 HYPERLINK \l _bookmark5 3．全光纤电流互感器的理论研究……………………………………………………9 HYPERLINK \l _bookmark5 3.1 全光纤电流互感器…………………………………………………………………9 HYPERLINK \l _bookmark6 3.2 法拉第效应…………………………………………………………………………9 HYPERLINK \l _bookmark7 3.3 光纤电流互感器工作原理………………………………………………………10 HYPERLINK \l _bookmark8 4．偏振光学和琼斯矩阵…………………………………………………………………13 HYPERLINK \l _bookmark9 4.1 偏振光学…………………………………………………………………………13 HYPERLINK \l _bookmark9 4.2 琼斯矩阵…………………………………………………………………………13 HYPERLINK \l _bookmark