Application of PowerCAD software package for calculation of power and energy losses in distribution networks

Abstract

The paper presents a review of new capabilities of the PowerCAD (TOKSwin) software package, which has been used for many years for technical analysis (planning, protection, design, management, etc.) of transmission and distribution networks in the Croatian Electric Power Company and electric power companies in Bosnia and Herzegovina. The application of the PowerCAD software package is shown on the example of calculating power and energy losses in a medium-voltage distribution network. A real 35 kV network supplied from one 110/35/10 kV substation was used, as well as measured active and reactive loads at a 10 kV voltage level in 15-minute intervals over the course of a week. Different methods of calculating energy losses are shown, as well as the sensitivity of the results to the input parameters and the selected method.

Ranko Goić

Full Professor | Department of Power Grids and Substations

Full professor at the Faculty of Electrical Engineering, Mechanical Engineering, and Naval Architecture in Split exeperienced in transmission and distribution networks, renewable energy sources (RES), power system planing and economics