Analysis of the Impact of Micro Photovoltaic Installations on the Voltage in the Low Voltage Distribution Network

The main problem in this work was to analyze the influence of photovoltaic systems on low voltage grids. For the purpose of the study, a model of a low voltage distribution network was proposed and created. It consisted of a model medium to low voltage transformer, lines, PV installation and loads. The basic working conditions of the system have been assumed – like typical DPF and real power in loads. A simulation study of these states was then performed. The influence of the installation on the voltage value was proved and the way of improving network parameters in case of single-phase installations was suggested.