电力系统保护与控制2012，Vol.40Issue(8)：38-43，94,7.
Sagnac型光纤电流互感器数据同步的研究
Study of data synchronization of Sagnac fiber optic current transformer
马超 1李立京 1李传生1
作者信息
- 1. 北京航空航天大学仪器科学与光电工程学院,北京100191
- 折叠
摘要
Abstract
Data synchronization method based on Sagnac fiber optic current transformer (S-FOCT) is discussed. According to the digital closed-loop signal detecting principle of S-FOCT, data synchronization method based on interpolation is ascertained. In order to improve the measuring precision and real-time performance, data synchronization technology based on linear interpolation with high sampling frequency is presented, and the work of simulation and error analysis are finished. The simulation result shows that linear interpolation method with the sampling frequency of 200 points per period can meet the requirement of the data synchronization of S-FOCT. And static amplitude error can reach less than 0.014% , phase error less than 0.12', transient amplitude error less than 0.2% , and phase error less than 1.2', which are much less than the limited values of error regulated in IEC60044-8 standard. Therefore, this algorithm has no influence on the precision of S-FOCT.关键词
Sagnac型光纤电流互感器/数据同步/线性插值/误差分析/幅值误差/相位误差Key words
Sagnac fiber optic current transformer/ data synchronization/ linear interpolation/ error analysis/ amplitude error/ phase error分类
信息技术与安全科学引用本文复制引用
马超,李立京,李传生..Sagnac型光纤电流互感器数据同步的研究[J].电力系统保护与控制,2012,40(8):38-43，94,7.
