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The paper develops a spectrum localization method for the symmetrical components of a three-phase, unbalanced systems, in non-sinusoidal regime. Spectral density of symmetrical components is determined in relation to the spectral density of the analytical signals associated to voltage and current signals of the three-phase systems. The method allows determining the direct and inverse sequence of components...
This paper presents a new analysis method of a multi-phased electric system, based upon the concept of analytic signals. Analytic signals are complex values, formed by pairs of real signals connected through the Hilbert Transform. Analytic signals are associated to the voltage and current signals that characterize the multi-phased electric system. Fortescue transformations, formally similar to those...
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