Technical interactions between distributed photovoltaic systems and low-voltage grids

In the European Research Program ICOP DEMO 4080-98 there was installed a photovoltaic system of 10kWp made of 66 photovoltaic modules model OPTISOL SFM 72 Bx made by Pilkington Solar International and 24 ST 40 modules made by SIEMENS at the University of Valahia in Targoviste. The DC energy producted by the modules is inverted through the Sunny Boy inverter and directed to the network; in case the solar energy isn't enough the deficit is compensated by the network to ensure functionability of all the connected devices. The analysis of the connection to the system of an electric solar based source it's made in the purpose of analyzing the quality of the energy used to power up the consumers, to decrease the negative influences of perturbations over the parameters of the energy distributed and to see in what manner the consumers connected to the source measure in the allocated perturbance.