高电压技术2024，Vol.50Issue(5)：2198-2206,9.DOI:10.13336/j.1003-6520.hve.20231130
基于法拉第效应的宽频光学电流传感器研制及其性能研究
Development and Performance Study of Wide-band Optical Current Sensor Based on Faraday Effect
摘要
Abstract
At present,there are a large number of high-frequency transient current components in smart grid and new power system.High-frequency transient current is an important information reflecting the disturbance and fault process of power system,and the real-time observation of its waveform,frequency,amplitude and other information parameters is the premise to prevent and ensure the safe and stable operation of power grid.However,the traditional current measure-ment method has some problems,such as narrow frequency band,susceptibility to electromagnetic interference and difficulty in insulation coordination,which makes it difficult to effectively detect the transient current.Therefore,a sole-noid broadband optical current sensor with anti-interference ability is proposed and designed in this paper.Based on the sensor performance test platform,the sensitivity,linearity and frequency characteristics of the sensor are studied.The re-sults show that the sensitivity of the current sensor is 62.57 mV/A and the bandwidth can reach more than 1 MHz.In addition,a DC arc experimental platform was built to measure the DC arc.The experimental results show that the sensor can effectively measure DC to the high-frequency arc components,the linear correlation between the measurement results and the standard current probe can reach 0.9971,and the relative change rate of the correlation coefficient of many ex-perimental results is less than 2%,which has a certain engineering value.关键词
高频暂态电流/光学电流传感器/性能测试/频率特性/直流电弧Key words
high frequency transient current/optical current sensor/performance test/frequency characteristics/DC arc引用本文复制引用
朱鸿,沙致远,李佳讯,张乔根,文韬..基于法拉第效应的宽频光学电流传感器研制及其性能研究[J].高电压技术,2024,50(5):2198-2206,9.基金项目
国家自然科学基金(52277142) （52277142）
中国科协青年人才托举工程(YESS20210026) （YESS20210026）
中国电机工程学会青年人才托举工程(JLB-2022-86).Project supported by National Natural Science Foundation of China(52277142),Young Elite Scientists Sponsorship Program by CAST(YESS20210026),Young Elite Scientists Sponsorship Program by CSEE(JLB-2022-86). （JLB-2022-86）
