中国电机工程学报2017，Vol.37Issue(12)：3621-3626,6.DOI:10.13334/j.0258-8013.pcsee.160353
特殊螺旋高双折射保椭圆光纤研究及其在电流互感器中的应用
Special Spun High Birefringence Elliptical Polarization-maintaining Fiber and Its Application in Current Sensor
摘要
Abstract
The performance of sensing optical fiber plays a key role in maintaining the stability of a fiber optical current sensor (FOCS).In order to overcome the impact of the random birefringent,a special spun high birefringence elliptical polarization-maintaining fiber was fabricated and applied to design a FOCS sensing coil.The structure and working mechanism of the sensing fiber were described,and the ability of anti-interference was analyzed.At a rated current of 1200 A,over a temperature range from 40℃ to 70℃ the sensor was tested and achieved a high accuracy.The amplitude measuring error was lower than 0.05％ and the phase measuring error was within ±2'respectively;when the frequency of current measured was between 0Hz and 1500Hz,the amplitude measuring error was within 0.2％.During eight hours,of vibration at 40m/s2,the amplitude measuring error was always kept within ±0.05％,and the phase measuring error was always kept within 2'.The FOCS achieved by the special optical fiber is put into operation in the 800kV Ling Zhou Convertor Station.关键词
光纤电流互感器/法拉第效应/电流测量/特殊螺旋双折射光纤/抗干扰Key words
fiber optical current/Faraday effect/current measurement/special spun hi-bi fiber/anti-interference分类
信息技术与安全科学引用本文复制引用
刘建明,黄勇..特殊螺旋高双折射保椭圆光纤研究及其在电流互感器中的应用[J].中国电机工程学报,2017,37(12):3621-3626,6.基金项目
国家863高技术基金项目(2013AA050101).The National High Technology Research and Development of China 863 Program (2013AA050101). （2013AA050101）
