多通道雷电流在线监测系统的研发和应用  

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

作　　者：端木林楠[1] 余占清[2] 彭珑[1] 程一[3] 赵媛[1] 李雨[1] 

机构地区：[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

出　　处：《中国电力》2015年第2期49-54,共6页Electric Power

基　　金：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"~~

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 k V神保双回线路、500 k V太山双回线路实际运行,于2013年6月25日捕获了雷击500 k V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。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.

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 

分 类 号：TM863[电气工程—高电压与绝缘技术]