Blind source separation methods applied to evaluate harmonic contribution

One of the greatest challenges found in power quality has been, and still is, establishing a reliable noninvasive method for quantifying harmonic contributions an electric utility consumer at point common coupling (PCC). This difficulty arises from fact that distortions measured on PCC are unidentifiable mixtures both parties. Currently, some work focused exploring use blind source separation (BSS) techniques to promote sharing responsibilities way. However, usage this methodology is very recent requires thorough evaluations, not only view BSS available literature, but also perspective electrical systems nature their loads. Thus, seeking contribute consolidation responsibilities, aimed investigate impact variation current sources accuracy methods. In addition, three algorithms suitable complex-valued signals were evaluated computationally experimentally; results obtained compared with based covariance characteristic random vectors, experimental was through invasive procedure.