中国电力 ›› 2015, Vol. 48 ›› Issue (2): 49-51.DOI: 10.11930.2015.2.49

• 电网 • 上一篇    下一篇

多通道雷电流在线监测系统的研发和应用

端木林楠1,余占清2,彭珑1,程一3,赵媛1,李雨1   

  1. 1. 华北电力科学研究院有限责任公司,北京 100045;
    2. 清华大学 电机工程与应用电子技术系电力系统及发电设备仿真和控制国家重点实验室,北京 100084;
    3. 国网北京市电力公司,北京 100031
  • 收稿日期:2014-10-29 出版日期:2015-02-25 发布日期:2015-11-30
  • 作者简介:端木林楠(1984—),男,河北沧州人,硕士,工程师,从事输变电技术及输电线路防雷研究。E-mail: duanmulinnan@163.com
  • 基金资助:
    国家电网公司总部管控项目“雷电特征参数监测与分析研究:一期”

Development and Application of Multi-channel Lightning Current On-line Monitoring System

DUANMU Linnan1, YU Zhanqing2, PENG Long1, CHENG Yi3, ZHAO Yuan1, LI Yu1   

  1. 1. North China Electric Power Research Institute Co. Ltd., Beijing 100045, China;
    2. State Key Laboratory of Power System, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;
    3. State Grid Beijing Electric Power Company, Beijing 100031, China
  • Received:2014-10-29 Online:2015-02-25 Published:2015-11-30
  • Supported by:
    This project is managed and controlled by Science and Technology Foundation of SGCC(“The characteristic parameters of monitoring and analysis of lightning (first stage)”)

摘要: 雷电流特征参数的测量对于研究雷电放电过程以及雷电防护有着十分重要的意义。介绍了一套多通道雷电流在线监测系统。使用自行研制的基于柔性罗氏线圈的雷电流传感器,通过电磁耦合把大的雷电流转化为低电压信号;采用高速数据采集处理单元对耦合出来的电压信号进行高速采集,保证信号的完整性和精确度;利用通用分组无线服务技术(GPRS)进行无线数据传输;利用专家分析查询系统对远程接收系统测得的雷电流波形信号分析处理,并对系统进行远程控制,保证系统稳定运行。系统经过在500 kV神保双回线路、500 kV太山双回线路实际运行,于2013年6月25日捕获了雷击500 kV架空输电线路实测波形,成功监测到雷电流幅值、波头时间等特征量,同时监测并记录雷电流全波波形数据,为雷电监测数据比对与仿真反演提供更全面的基础资料。

关键词: 架空输电线路, 雷击, 雷电流, 在线监测, 数据采集, 基站系统, 专家分析系统

Abstract: Measurement of lightning current characteristic parameters are very important for study of lightning process and protection. An on-line monitoring system for multi-channel lightning current is developed in this paper. A flexible Rogowski coil lightning current sensor is designed to convert high lightning flow to low voltage signal by electromagnetic coupling. A high-speed data acquisition and processing unit is used to acquire voltage signal to ensure the integrity and accuracy of the signal. The wireless data transmission is based on GPRS. The expert analysis system, which is remotely controlled on the purpose of stable operation, is used for analysis and processing of the received lightning current waveform signal. The system has been implemented in the 500 kV Shenbao Ⅰ-Ⅱ and Taishan Ⅰ-Ⅱ transmission lines, in which a lightning current waveform was successfully caught on June 25, 2013 and its characteristic parameters were monitored and the lightning current waveform data were recorded, which can provide the basic data for lightning current comparison and simulation inversion.

Key words: overhead transmission lines, lightning, lightning current, online monitoring, data collection, base station system, expert analysis system

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