On techniques for localization of sources producing distortion in three‐phase networks

Abstract

Abstract This paper extends the underlying network theory defining the direction of harmonic power in single‐phase systems to three‐phase systems. By employing symmetrical component theory for multi‐frequency systems, zero‐, positive‐ and negative‐phase sequence components may be considered separately. However, the theoretical results and the modelling show that single‐point measurements for the localization of distortion‐producing sources are not practical when these sources are distributed over the network.