Frequency tracking algorithms: A contribution considering phase unbalance, step variations, noise, harmonics, and different sampling rates

被引：2

作者：

Marchesan G. ^{[1
]}

Dos Santos E.M. ^{[1
]}

Cardoso Jr. G. ^{[1
]}

Gomes N.R. ^{[1
]}

Mariotto L. ^{[1
]}

机构：

[1] Power System and Energy Research Center, Federal University of Santa Maria, UFSM, Santa-Maria RS CEP 97050-520, Av. Roraima, No 1000, Bairro Camobi

来源：

Journal of Control, Automation and Electrical Systems | 2013年 / 24卷 / 4期

关键词：

Frequency estimation; Frequency trackers; Harmonics; Noises; Numerical relays; Power quality;

D O I：

10.1007/s40313-013-0037-y

中图分类号：

学科分类号：

摘要：

Frequency estimation has a great importance for protection services, power quality, and in the operation of an electric power system. This paper describes and analyzes six methods used in frequency estimation. The techniques were tested by employing signals generated from mathematical equations, with and without noise and harmonics. Aiming to analyze the algorithms behavior in applications that involve the monitoring of the power quality, a rate of 96 samples per cycle was used. On the other hand, for applications in protection services, 16 samples per cycle were used, since numerical relays work with a lower sample rate. It was also tested the performance of the methods considering a signal obtained from simulations on a test system using the software DIgSILENT circledR. The techniques were compared by performance indicators commonly employed in phasor measurement. © 2013 Brazilian Society for Automatics - SBA.

引用

页码：493 / 503

页数：10