ESTIMATION OF THE POWER QUALITY DISTURBANCES IN THE FREQUENCY DOMAIN

Dušan Agrež

Abstract

In this paper, simple algorithms for fast measurement and estimation of the unknown changing frequency, amplitude, and phase difference of the sinusoidal signals from two channels with the same frequency, and other parameters for evaluation of the power quality disturbances are presented. Parameters are calculated from the DFT coefficients around the component peaks. The improvements for reducing the influences of the harmonic components can be the estimation with the three-point interpolation and the Hann window.

Download: IMEKO-TC4-2010-026.pdf
DOI: -
IMEKO TC: TC4 - Measurement of Electrical Quantities

Event details

Event: Instrumentation for the Information and Communication Technology Era
Technical Committee: TC4
Place: Kosice, SLOVAKIA
Time: 8 September 2010 - 10 September 2010
Website: http://www.imeko.tuke.sk

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