Influence of PV-Systems on Short-Circuit Currents in Low-Voltage Distribution Grids in Structurally Weak Areas

The large scale integration of photovoltaic systems into the low voltage distribution grid changes the short-circuit conditions. The aim of this work is to analyse and determine the influence of inverters on the short circuit conditions. For this purpose a reference network of structurally weak areas is set up and a method to calculate the contribution of photovoltaic systems is derived.