基于罗氏线圈的雷电流监测系统的设计与实现

摘要

Based on requirements of lightning current measuring and using Rogowski coil with broadband as sensor , a data collection system with low power consumption and high performance based on high -speed analogt-o-digital converter , MSP430 sig-nal processing chip and FPGA was put up .Combined with wireless transceiver technology of GPRS , the design of lightning current monitoring system on transmission line was realized .The system used master-slave communication mode .Each monitoring terminal can measure five channels ’ lightning current at the same time , and it can monitor each phase of the electric transmission line and lightning current amplitude , polarity and lightning time of the overhead ground wire in real time .It has positive effects on the de-velopment of the lightning protection technology .%基于雷电流测量需求，使用宽频带的罗氏线圈作为传感器，搭建了以高速模数转换器、MSP 430微控制器和FP-GA为核心的低功耗、高性能的数据采集系统，结合GPRS无线收发技术实现了架空输电线雷电波形监测系统的研制。该系统采用主从通信模式，各监测终端能够同时测量五通道的雷电流，能够实时监测输电线路的各相和避雷线的雷电流幅值、极性及雷击时间，对于防雷技术的发展具有积极作用。