电子式电流互感器中Rogowski线圈的设计及动静态性能分析

Design of Rogowski Coil on Electronic Current Transformer and Analysis on Dynamic and Static Performance

测量传感头Rogowski线圈是电子式电流互感器的关键部分,通过分析Rogowski线圈的测量原理,导出了测量关系,并设计了一个Rogowski线圈。实验结果表明该Rogowski线圈具有良好的线性度。根据仿真分析可知该传感头不但在测量稳态电流上有很高的精度,还能很好地反映故障电流的暂态过程,并在动态试验中得到了验证。从而为设计一个高测量精度和良好动态性能的电子式电流互感器奠定了基础。

The measure sensor, Rogowski coil, is the key part of electronic current transformer. According to the analysis of the design principle, the measure relation is educed and a Rogowski coil is designed in this paper. Experiment shows that Rogowski coil has a good linear relation. The analysis of simulation shows that this Rogowski coil not only can measure steady AC current accurately but also has a good performance in describing the transient process of fault current, which has been verified in the dynamic test. So it lays a good foundation for designing a high precision and good dynamic performance electronic current transformer.