Assessment of electric power quality: indices for identifying disturbing loads

The study aimed at defining parameters capable of assessing, in terms of distortion and unbalance, the quality of the electric power drawn by the customer: Taking as a starting point the advantages and limitations of the methods proposed so far in the literature, two new indices are introduced, useful for quantifying the disturbing characteristics of a load. The efficiency of these indices has been assessed by computer simulations to assess the applicability of the method to three-wire and four-wire three-phase systems in many realistic situations