摘要
提出一个基于改进型自适应陷波器频率估计算法,并对自适应陷波器的参数配置进行分析.当电网谐波较大时,对电压或电流的采样信号和频率估计输出值进行数字滤波,以实时、准确地解决电力系统频率跟踪与估计问题.该方法的优点是结构简单、频率估计精确度高、响应速度快、噪声以及谐波的免疫力相当强.
A method is proposed to estimate the frequency of power system based on the concept of modified Adaptive Notch Filter （ANF）. The way to set the parameters is also discussed. In the condition with serious harmonic distortion, the digital filter is applied to make it possible to achieve real time and precise measurement of frequency in power system. Simple structure, high precision, fast response, and immunity against noise and harmonic wave are the advantages of this method.
出处
《上海海事大学学报》
北大核心
2007年第3期24-27,共4页
Journal of Shanghai Maritime University
基金
上海市登山计划重大科技项目(06dz15002)
关键词
自适应陷波器
频率估计
级联滤波
电网
adaptive notch filter
frequency estimation
cascaded filter
power system
