摘要
设计了一种基于罗氏线圈的高频电流传感器,对高频等效电路模型进行了理论计算,分析了影响传感器性能的各项参数.然后用Matlab软件对传感器进行仿真,总结参数变化对传感器性能影响的规律,最终确定适合本设计的传感器参数.最后对传感器加装处理电路,实现信号幅频响应通带到阻带快速降落的良好边界性能.测试结果表明,在特定频段内该传感器具有频带宽、灵敏度高及通带到阻带降落迅速等特点,性能良好.
The design of high frequency current transformer based on Rogowski coil is introduced. Parameters that affect the performance of the sensor are analyzed by calculating the high frequency circuit model. By using M atlab software,the senser is simulated. The influence of the variation of the parameters on the performance of the sensor is changed with circuit simulation.The pretreatment to the Rogowski coil＇s sampling signal is finished and the amplitude-frequency performance is improved. The experimental results showthat this current transformer has high sensitivity and high bandwidth.
出处
《上海电力学院学报》
CAS
2014年第6期559-562,573,共5页
Journal of Shanghai University of Electric Power
关键词
电磁耦合
电流互感器
高频模型
传感器仿真
electromagnetic coupling
current transformer
high frequency circuit model
sensor simulation
