Rogowski线圈电流互感器相差分析与补偿设计

Phase Error Analysis and Phase Compensation Design in Electronic Current Transducer Based on Rogowski Coil

为了解决基于Rogowski线圈的电子式电流互感器(ECT)的相位误差影响测量精度的问题,对电子式电流互感器相位误差的产生原因进行了研究,提出了新的全通型恒时延滤波器移相电路的补偿设计方案,实验结果验证了相位补偿方案的有效性。

In order to solve the problems of electronic current transformer phase errors affecting the meas- urement accuracy, this paper introduces the principle of electronic current transformer based on Rogowski coil. The cause of phase error in ETC is analyzed. According to the analysis results of different phase com- pensation methods, a new type of all-pass filter phase shifter circuit constant delay compensation design is presented. The experiment results prove the validity of the design.