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Comparison of harmonic estimation methods for power quality assessment

Rodrigues, N. ; Ramos, P.M. ; Janeiro, F. M.

Comparison of harmonic estimation methods for power quality assessment, Proc IMEKO World Congress, Belfast, Ireland, Vol. , pp. - , September, 2018.

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Abstract
Power quality is regulated by international accepted standards from IEEE and IEC.
One of the parameters that is defined in the standards is the harmonic distortion. The grouping
method is the standard-advised method to evaluate harmonics but other approaches can be used.
In this paper, three different methods are compared considering memory requirements, relative
time consumption and the uncertainty of the harmonic estimation with spectral leakage, noise
and different harmonic phases.