Fast harmonic simulation method for the analysis of network losses with converter-connected distributed generation

The use of distributed generation (DG) in low voltage grids is becoming more common. The impact of the DG units is considered, with an emphasis on the effect of DG on the network losses. These losses consist of fundamental and harmonic losses. The converter-connected DG units have a different influence on these two terms of the total losses. The aim of this paper is to present a fast harmonic simulation model that can be applied to study the influence of a DG unit on the total losses and elucidate the importance of the harmonic losses in proportion to the total losses.