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An efficient approach to detect and classify power quality disturbances

Radil, T. ; Janeiro, F. M. ; Ramos, P. M. ; Serra, A.

COMPEL - The International Journal for Computation and Mathematics in Electrical and Electronic Engineering Vol. 27, Nº 5, pp. 1178 - 1191, September, 2008.

ISSN (print): 0332-1649
ISSN (online):

Scimago Journal Ranking: 0,30 (in 2008)

Digital Object Identifier: 10.1108/03321640810890843

The purpose of this paper is to develop a new method for detection and classification of power quality disturbances such as transients, waveform distortions, sags, swells and interruptions.
For the purposes of the proposed method, the power quality disturbances are divided into two groups. Different algorithms are applied to detect and classify the disturbances from each of the two groups. For the processing of transients and waveform distortions, digital high-pass filter and the mathematical morphology closing are used. Calculation of the RMS value is used for detection of sags, swells and interruptions.