Measurement of power systems voltage and flicker levels for power quality analysis: a static LAV state estimation based algorithm

被引：41
|
作者：
Soliman, SA [1 ]
El-Hawary, ME [1 ]
机构：
[1] Ain Shams Univ, Fac Engn, Elect Power & Machines Dept, Cairo, Egypt
来源：
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS | 2000年 / 22卷 / 06期
关键词：
least absolute value; flicker; fast Fourier transform;
D O I：
10.1016/S0142-0615(00)00003-X
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
There is a need to accurately measure voltage flicker levels for power quality analysis. This paper introduces a new application of the least absolute value (LAV) state estimation algorithm to measure the flicker voltage magnitude as well as the voltage magnitude. The problem ends up as one of linear optimization, for which we use the LAV parameter estimation algorithm. We use a linear model of the flicker voltage magnitude as well as the power system voltage magnitude and their phase angles. The proposed algorithm uses digitized samples of the voltage signal. Effects of data window size, sampling frequency and number of samples on the estimated voltages magnitudes and phase angles are investigated. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：447 / 450
页数：4
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