:职称:讲师
f摘要
电流互感器作为电力系统中的重要设备,对电力系统的正常运行和精确计量起着十分重要的作用。随着国民经济的发展,各种供电电压等级不断出现,对电力系统的测量和保护准确度要求不断提高。传统的电流互感器已经不能满足电力系统的高要求。而Rogowski线圈结构简单、测量精度高、线性度好,在一定条件下Rogowski线圈可以作为电流互感器的替代品。本文分析了Rogowski线圈结构参数(如线圈宽度、厚度和中心半径)和电磁参数(如线圈自感、互感和内阻)之间的关系以及它们对线圈动态特性的影响。分析了罗氏线圈结构尺寸与电气参数的关系,建立了线圈的数学模型。研究了三种不同截面形状(矩形、圆形、和跑道形)的Rogowski线圈,针对不同截面形状的线圈建立了不同的数学模型,利用Matlab软件和等值电路对Rogowski线圈进行了仿真研究。通过比较分析提出了有关优选Rogowski线圈电磁和结构的方法,对于快速设计具有合理结构、最优电磁参数和良好动态特性的Rogowski线圈具有理论指导作用。关键词Rogowski线圈;截面形状;电磁参数;结构参数;仿真;
fAbstract
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f目录
摘要r