Detection and characterization of oscillatory transient using Spectral Kurtosis

Jose María Sierra-Fernández, Juan José González de la Rosa, Agustín Agüera-Pérez, José Carlos Palomares-Salas

Abstract

This paper describes a new procedure for analyze oscillatory transient, based in the Spectral Kurtosis (SK). It gives the kurtosis of each frequency component, and it is related to the amplitude evolution. With all this information any frequency which amplitude keeps constant or suddenly change will be identified. This second case is the oscillatory transient, in which a specific frequency appears. SK detects and characterizes that frequency univoquely. Some theoretical situations and a real one will be analyzed in order to proof the great capacities of the SK in the analysis of this kind of defect.

Keywords

power quality, spectral kurtosis, oscillatory transient, signal processing, spectral analysis

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IMEKO-TC4-2013-036.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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