新型特高压全光纤直流电流互感器性能研究  

Study of the Performance of New Extra-high Voltage All Fiber Optical Direct Current Transformer

作　　者：赵俊[1,2] 石磊 黄堃 孙小菡[1] ZHAO Jun;SHI Lei;HUANG Kun;SUN Xiao-han(Southeast University,Nanjing 210096,China;不详)

机构地区：[1]东南大学,电子科学与工程学院,江苏南京210096 [2]南京曦光信息科技有限公司,江苏南京210012 [3]国电南瑞科技股份有限公司,江苏南京211106

出　　处：《电力电子技术》2020年第9期19-22,共4页Power Electronics

基　　金：航空科学基金(2019ZH069003);国家重点研发计划(2016YFB0601500)。

摘　　要：研制了一种基于偏振干涉式光纤温度传感器(PMF-TS)的1100 kV直流全光纤电流互感器(FOCT),通过PMF-TS实时监测FOCT传感环的温度信息,消除环境温度变化对FOCT测量准确度的影响。完成了样机研制,设计了试验方案,测试了样机的精度、温度及频率响应特性。结果表明,经过实时温度修正后,在-40~70℃温度范围内系统的比差波动小于±0.2%,满足10%~110%一次额定电流范围内0.2级的误差限值要求,同时,在50~1200 Hz谐波范围内,系统的测量误差不超过0.75%。A 1100 kV all fiber optical direct current transformer(FOCT)based on a polarization interference fiber optical temperature sensor(PMF-TS)is developed.PMF-TS is used to monitor the temperature information of the FOCT sensor ring in real-time,eliminating the impact of ambient temperature changes on FOCT measurement accuracy.Completed prototype development,designed a test plan,and tested the accuracy,temperature,and frequency response characteristics of the prototype.The results show that after real-time temperature correction,the system’s ratio fluctuation within the temperature range of-40~70℃is less than±0.2%,which meets the 0.2 level error limit requirement in the range of 10%~110%primary rated current.In addition,within the 50~1200 Hz harmonic range,the measurement error of the system does not exceed 0.75%.

关 键 词：直流全光纤电流互感器 特高压 温度补偿 

分 类 号：TM452.94[电气工程—电器]