Power system frequency tracking using an adaptive lattice notch filter

被引：2
|
作者：
Zhang, S [1 ]
Li, D [1 ]
Sun, J [1 ]
机构：
[1] Harbin Inst Technol, Dept Automat Measurement & Control, Harbin 150001, Peoples R China
来源：
MEASUREMENT TECHNOLOGY AND INTELLIGENT INSTRUMENTS VI | 2005年 / 295-296卷
关键词：
frequency measurement; adaptive notch filter; down-sampled technique;
D O I：
10.4028/www.scientific.net/KEM.295-296.673
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A new approach for power system frequency estimation is proposed. The approach consists of two stage adaptive notch filters. The first stage eliminates harmonics and enhances the fundamental waveform. After the down-sampled processing, the second stage produces an accurate estimate of the fundamental frequency. The notch filter is based on all-pass filter with an efficient lattice structure and is simple to realize. Simulation is presented to demonstrate the effectiveness of the algorithm.
引用
收藏
页码：673 / 678
页数：6
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