Fast Tracking the Fundamental component in Synchrophasors applications using the Recursive Corrected Phase Wavelet Transform

Abstract

This paper presents the use of Recursive

Corrected Phase Wavelet Transform to track harmonic

components (always present in Power Systems), in order to

determine the fundamental frequency “as soon as possible”, to

provide appropriate input values to a non-linear algorithm that

can accurately approach in only one cycle the amplitude and

phase of the fundamental frequency. This technique is useful in

real-time synchrophasors applications, specially for load

identification and characterization. Based on the deepest

descend method, the algorithm has less computational effort in

comparison with phased locked loop.