高频电流传感器几何位置影响的数值仿真分析  

Numerical Simulation and Analysis of the Effect of Geometric Position of High-Frequency Current Sensor

作　　者：赵法强 唐明 郭飞飞 ZHAO Faqiang;TANG Ming;GUO Feifei(Shenzhen Power Supply Co.,Ltd.,Longgang Power Supply Bureau,Shenzhen 050021,China;Changyuan Gongchuang Electric Power Security Technology Co.,Ltd.,Zhuhai 519085,China)

机构地区：[1]深圳供电有限公司龙岗供电局,广东深圳050021 [2]长园共创电力安全技术股份有限公司,广东珠海519085

出　　处：《电线电缆》2020年第6期25-29,38,共6页Wire & Cable

摘　　要：采用Biot-Savart定理推导被测导线偏心情况下高频电流传感器(HFCT)感应电势与输出误差的解析解。基于Ansoft软件建立高频电流传感器与载流导线的有限元模型,并与Simplore软件联合,完成电磁场与电路的仿真。分别仿真载流导体为矩形以及圆形时,导体几何位置对HFCT输出的影响。仿真结论指出,为了获得最佳效果,在现场检测时需尽量让被测载流导体靠近传感器线匝绕制所在的骨架平面。The theoretical solution of the output and relative error of a high-frequency current sensor(HFCT)under the condition of the eccentricity of measured wire is deduced by the Biot-Savart theorem.Based on the Ansoft software,the finite element model of the HFCT is established,and the simulation of electromagnetic field and circuit is completed with Simplore software.The influence of the geometric position of conductor on HFCT output is simulated when the current-carrying conductor is rectangular and circular.The simulation results show that in order to obtain the best effect,it is necessary to make the current-carrying conductor close to the skeleton plane of the sensor wire winding as far as possible.

关 键 词：高频电流传感器 感应电势 有限元 联合仿真 

分 类 号：TM206[一般工业技术—材料科学与工程]