Study and Design of Rogowski Coil for Partial Discharge Signal Measurement

JIANG Jinbo; CHEN Guifeng; LUO Zheng; FANG Chunhua; ZOU Yun’an; ZHAO Lei

doi:10.13296/j.1001-1609.hva.2025.01.007

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Study and Design of Rogowski Coil for Partial Discharge Signal Measurement

Research & Analysis | 更新时间：2025-04-26

- Study and Design of Rogowski Coil for Partial Discharge Signal Measurement
- High Voltage Apparatus Vol. 61, Issue 1, Pages: 63-71(2025)
- 作者机构：
  
  1.三峡大学湖北省输电线路工程技术研究中心，湖北　宜昌　 443002
  2.三峡大学电气与新能源学院，湖北　宜昌　 443002
  3.浙江赛禄克电气有限公司，浙江　温州　 325602
- 作者简介：
- 基金信息：
  
  National Natural Science Youth Foundation of China(51707105);Open Foundation of State Key Laboratory of Intense Pulsed Radiation Simulation and Effect(SKLIPR2008)
- DOI：10.13296/j.1001-1609.hva.2025.01.007
  CLC：
- Received：11 July 2024，
  
  Revised：15 September 2024，
  
  Published：16 January 2025
- 稿件说明：
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JIANG Jinbo, CHEN Guifeng, LUO Zheng, et al. Study and Design of Rogowski Coil for Partial Discharge Signal Measurement[J]. High voltage apparatus, 2025, 61(1): 63-71.
DOI：

JIANG Jinbo, CHEN Guifeng, LUO Zheng, et al. Study and Design of Rogowski Coil for Partial Discharge Signal Measurement[J]. High voltage apparatus, 2025, 61(1): 63-71. DOI： 10.13296/j.1001-1609.hva.2025.01.007.

摘要

针对局部放电信号的在线测量与监测需求，文中研究并设计了一种镍锌铁氧体磁芯的宽频带（100 kHz~50 MHz）、高灵敏度（5.64 V/A）罗氏线圈。首先对罗氏线圈的工作模式和频率特性展开分析，通过公式推导出线圈工作于不同模式的条件，以及自积分模式下线圈的频带和灵敏度影响因素，随后用Pspice建立等效电路模型进行线圈参数扫描并对推导的理论进行验证，通过改变线圈几何参数来简化积分条件，确定磁芯尺寸和线圈匝数以及终端电阻的最优取值。最后加工制作了5个相同参数的线圈并通过信号发生器分析线圈方波响应，对其工作模式进行验证，同时对线圈进行了频带与灵敏度的标定，实验结果表明所设计的罗氏线圈性能良好，可满足高频局放信号的测量需求。

Abstract

As for the on-line measurement and monitoring requirement of partial discharge signals

a kind of broad-band (100 kHz-50 MHz) and high sensitivity (5.64 V/A) Rogowski coil with nickel zinc ferrite core is studied and designed in this paper. Firstly

the operating modes and frequency characteristics of the Rogowski coil are analyzed

and the conditions of the coil working in different operating modes as well as the influencing factors of the frequency band and its sensitivity of the coil under self-integration operating mode are derived. Then

Pspice is used to set up the equivalent circuit model for coil parameters scanning and verification of the derived theory. The integral conditions are simplified by changing the geometric parameters of the coil to determine the magnetic core size

coil turns and the optimal value of terminal resistance. Finally

five coils with the same parameters are fabricated and the square-wave response of the coils is analyzed by signal generator to verify their operating modes and

at the same time

the frequency band and sensitivity of the coils are also calibrated. The experimental results show that the designed Rogowski coil has good performance and can meet the measurement requirements of high frequency partial discharge signal.

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