雷电流测量用PCB型Rogowski线圈研究  

Research on PCB Rogowski Coil for Lightning Current Measurement

作　　者：李璿[1] 张传计 吴士普[1] 周祎[2] 

机构地区：[1]中国电力科学研究院,武汉430074 [2]华中科技大学电气与电子工程学院,武汉430074

出　　处：《高压电器》2015年第10期158-162,共5页High Voltage Apparatus

基　　金：国家电网公司科技项目(GYW17201400161)~~

摘　　要：为提高雷电流测量用Rogowski线圈的准确度,文中提出了一种PCB型Rogowski线圈的设计原则。通过合理设计线圈参数与积分方式,解决了测量带宽与输出信号衰减之间的矛盾,并对设计的线圈以及积分器参数进行了仿真。在文中提出的线圈结构和积分方式下,峰值10 k A的8/20μs标准雷电流最大测量误差不超过2%。结果表明:所设计的PCB型线圈结合带补偿型二阶RC积分器,可以在保证频带的前提下保持较大的信号输出强度,且有较高测量准确度。In order to improve the measurement precision of Rogowski coil for lightning current, a design principle of the PCB Rogowski coil is proposed in this paper. Through the reasonable designation of parameters of the coil and the integration method, the contradiction between measurement bandwidth and output signal amplitude is solved; a simulation of designed coil and integrator parameters is carried out. Under the proposed coil structure and integrator, the maximum measurement error of standard lightning current of 8/20 txs which has a peak current of 10 kA is less than 2%. The result shows that： the structure of designed PCB coil with two order RC integrator, has large output signal and meanwhile guarantees the bandwidth, and high measurement accuracy.

关 键 词：雷电流 PCB型Rogowski线圈 补偿 二阶RC积分器 

分 类 号：TM863[电气工程—高电压与绝缘技术]