Flicker propagation in power systems supplying wind farms

In the last years, the conducted studies for connecting renewable energy sources with small installed capacity to the electrical grid highlighted the importance of the grid characteristics and on the technical conditions required for the equipments. The operation of wind farms in the electrical system is restricted by its capacity to absorb the produced power and to ensure the required adequacy. The propagation of voltage fluctuations in the electrical system, where wind farms are connected, is of high importance in order to assess their power quality impact.