A Three Phase Photovoltaic Power System Connected to the MV Network: Be haviour during Voltage Dips

The presence of Distributed Generation (DG) in t he distribution network is increasing and represents one of the most important research areas. Several reasons have forced this increase like the possibility to use renewable resources reducing the fossil fuels use with environmental and energy benefits. The paper deals with the results of a study performed by RSE, in the frame of the Research Fund for the Italian Electrical System, focused on the behaviour during voltage dips of a "DG system", consisting in a Photovoltaic generator (PV) connected to the network with three phase Voltage Source Inverter (VSI).