Evaluation of the harmonic impedance of Frydlant (Line 53) power network

Abstract

The harmonic impedance of the power system is an important quantity, which describes the behaviour of the power system with the existence of different frequencies beside the fundamental. The harmonic study belongs to the most difficult part of the electrical measurements and calculations even by using computer software. The main problem accompanying the calculating methods is to obtain the exact data of the electrical network parameters or to know the exact operational status of the system. In this paper the harmonic impedance of Frydlant (line 53, 22~kV in Czech Republic) power network was calculated by using a very specialized software and suitable for solving such calculations called "NetCalc. version 3.0" [1].