电子科技大学学报
電子科技大學學報
전자과기대학학보
JOURNAL OF UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA
2014年
2期
216-221
,共6页
双折射%电流互感器%琼斯矩阵%模型%对称双光路
雙摺射%電流互感器%瓊斯矩陣%模型%對稱雙光路
쌍절사%전류호감기%경사구진%모형%대칭쌍광로
birefringence effect%current transformer%Jones matrix%model%power quality symmetrical double-light
基于对称双光路检测法,采用琼斯矩阵,提出了磁光式电流互感器(MOCT)的整体模型。该模型表明,MOCT的输出电压是两个分量的乘积,一个分量是线性分量,它正比于一次电流瞬时值,另一个分量是非线性分量,该分量与磁线振双折射和法拉第(Faraday)旋转角的共同作用相关。在没有磁线振双折射效应的理想MOCT系统中,当一次电流瞬时值较小时, MOCT的输出电压与一次电流瞬时值成正比。仿真结果证明了结论的正确性。
基于對稱雙光路檢測法,採用瓊斯矩陣,提齣瞭磁光式電流互感器(MOCT)的整體模型。該模型錶明,MOCT的輸齣電壓是兩箇分量的乘積,一箇分量是線性分量,它正比于一次電流瞬時值,另一箇分量是非線性分量,該分量與磁線振雙摺射和法拉第(Faraday)鏇轉角的共同作用相關。在沒有磁線振雙摺射效應的理想MOCT繫統中,噹一次電流瞬時值較小時, MOCT的輸齣電壓與一次電流瞬時值成正比。倣真結果證明瞭結論的正確性。
기우대칭쌍광로검측법,채용경사구진,제출료자광식전류호감기(MOCT)적정체모형。해모형표명,MOCT적수출전압시량개분량적승적,일개분량시선성분량,타정비우일차전류순시치,령일개분량시비선성분량,해분량여자선진쌍절사화법랍제(Faraday)선전각적공동작용상관。재몰유자선진쌍절사효응적이상MOCT계통중,당일차전류순시치교소시, MOCT적수출전압여일차전류순시치성정비。방진결과증명료결론적정학성。
The paper presents a model of whole magneto-optic current transformer (MOCT) based on symmetrical double-light circuit detection and Jones matrix. The research result indicates:the output voltage is two parts multiplying. One part is linear part, which is direct proportion to the primary current transient value. The other part is nonlinear part, which is related with the magnetic linear birefringence effect and Faraday Effect. In ideal MOCT system without magnetic linear birefringence effect, when the primary current transient value is small enough, the output voltage of MOCT is direct proportion to the primary current transient value. Simulation results verify the exactitude of conclusion.