利用递推最小二乘算法测量电力系统频率  

USING RECURSIVE LEAST SQUARE ALGORITHM TO MEASURE FREQUENCY OF POWER SYSTEM

作　　者：李振然[1] 

机构地区：[1]广西大学电气系

出　　处：《电网技术》1995年第6期38-40,44,共4页Power System Technology

摘　　要：本文根据递推最小二乘算法，从受到干扰污染的输入信号中估计基波电压，利用电压相角变化来测量电力系统频率、电压幅值及两电压间的相位差，同时通过自适技术调整采样间隔，不仅提高了频率测量的精度，也加快了算法的收敛速度，减小了计算量。In this paper a method of estimatingfundamental voltage from polluted input signals ac-cording to recursive least square algorithm is intro-duced.Using the change of voltage phase angle,thefrequency,the voltage amplitude and the phase differ-ence between two voltages can be measured.Not onlythe accuracy of measurement is improved, but also thespeed of convergence is accelerated by adaptive sam-pling

关 键 词：递推最小二乘法 电力系统 频率测量 

分 类 号：TM935.1[电气工程—电力电子与电力传动]