CAJ | 학술논문

分析了全光纤电流互感器（FOCT）温度误差的主要来源,理论计算了温度变化下光纤λ/4波片与维尔德（Verdet）常数引入的误差,提出了一种温度误差补偿技术。通过在制作光纤λ/4波片时选择合适的初始相位延迟角,使λ/4波片引入误差与维尔德常数引入误差正好相反,从而达到相互补偿的目的。试验结果表明,通过补偿,FOCT能够满足0.2s级测量用电子式电流互感器的温度循环准确度要求。
분석료전광섬전류호감기（FOCT）온도오차적주요래원,이론계산료온도변화하광섬λ/4파편여유이덕（Verdet）상수인입적오차,제출료일충온도오차보상기술。통과재제작광섬λ/4파편시선택합괄적초시상위연지각,사λ/4파편인입오차여유이덕상수인입오차정호상반,종이체도상호보상적목적。시험결과표명,통과보상,FOCT능구만족0.2s급측량용전자식전류호감기적온도순배준학도요구。
The main temperature error sources of all-fiber optical current transformer （FOCT） are analyzed. The errors caused by fiber λ/4 waveplate and Verdet constant are calculated in theory. A temperature error compensation technology is presented, which uses the error caused by λ/4 waveplate to compensate for the error caused by Verdet constant by choosing appropriate original phase retardation angle of the λ/4 waveplate. The experimental results show that FOCT can satisfy the temperature cycle accuracy requirements of the 0.2 s class measuring electronic transformer.