西华大学学报（自然科学版）2025，Vol.44Issue(4)：99-106,8.DOI:10.12198/j.issn.1673-159X.5408
基于信号-能量双采集线圈的雷电流测量系统设计
Design of Lightning Current Measurement System Based on Signal-energy Dual Acquisition Coil
摘要
Abstract
Measurements of the properties of lightning currents are important for the analysis of light-ning accidents and the study of lightning protection.In this paper,a lightning current measurement system based on a signal-energy dual acquisition coil was proposed to address the high hardware requirements and difficult energy supply of the Rogowski coil systems.Based on electromagnetic theory,the relationships of the coil parameters on the frequency band and output characteristics were derived,and the signal coil was designed to fit the amplitude and frequency characteristics of the lightning current.A passive peak holding circuit was designed,which allowed the acquisition voltage of the signal coil to maintain values above 90%of the peak for 60 ms,which reducing the sampling rate requirement of the acquisition device.Based on the charge and energy conservation relations during the lightning current energy harvesting,the energy harvest-ing coils and circuits were designed to meet the self-supplying energy demand.The working time of each module was properly allocated and self-triggered measurements and energy obtaining of the system under lightning current conditions were achieved.With the impulse current experiment,it was verified that the system can measure the amplitude and polarity data of the lightning current and store them in the power-off state.The system can supply 50 mW of energy for 1s at 10 kA of lightning current,with a measurement er-ror of less than 5%for the lightning current amplitude.关键词
雷电流/信号线圈/取能线圈/峰值保持/测量系统Key words
lightning current/signal coil/energy obtaining coil/peak retention/measurement system分类
动力与电气工程引用本文复制引用
梅琪斌,王棣生,杨云坤,史俊,吴一鸣,侯营,王恩浩..基于信号-能量双采集线圈的雷电流测量系统设计[J].西华大学学报（自然科学版）,2025,44(4):99-106,8.基金项目
成都市科技计划项目(2024-YF08-00082-GX). （2024-YF08-00082-GX）
