I. INTRODUCTION
Solving the problem of a harmonic sources localization means solving the problem of responsibility for a harmonic generation, what is very essential from the view-point of disputes between suppliers and customers regarding harmonic distortion. There are many methods for localization of harmonic sources [1] - [10]. In the previous papers of the author the methods utilizing the specially-defined rates for a harmonic source localization have been proposed [9], [10]. The mentioned rates are the voltage rate and the current rate. The aim of the paper is to present comparison of the methods described in [9] and [10]. The comparison of these methods is made from the view-point of their theoretical background (the considered criteria of a harmonic source localization), principles of localization of harmonic sources, utilization, efficiency and case studies.
II. CONSIDERED LOCALIZATION CRITERIA
During an analysis of harmonics at the Point of Common
Coupling (the point PCC) the equivalent circuits shown in Fig. 1 are utilized. The circuit from Fig. 1a is more usable when harmonics in the voltage at the point PCC are considered, and the circuit from Fig. 1b is used when a harmonic analysis deals with the current at the point PCC. Source C represents the customer side and Source U represents the utility side. The relation between V’c_pcc and V’u_pcc (Fig.2a) , i.e. the relation between projections of Vc_pcc and Vu_pcc onto the voltage Vpcc, representing the impact of the sources Source C