Wind power generation impact on the frequency regulation: Study on a national scale power system

Global statistics reports all over the world demonstrates that wind generation is the only renewable energy that could really help in the future on matching the reduction of CO2 emissions (at least in the short and mid term scenario). Thus the TSOs of most European Countries (where this renewable resource is more relevant) have modified their Grid Codes, in order to regulate the behavior of connected wind power. Actually, one of the more problematic issues regarding wind generation itself is the respect of Power Quality requirements, as wind speed variations could heavily influence system\´s frequency as well as other perturbations, induced by system\´s contingencies, could be worsened by this renewable generation. Using a simulation platform called SICRE and a "Test Grid", reasonably comparable to a real grid, the effects of connecting to a "real" power system a large amount of wind power will be analyzed, trying to find a connection between growth of installed wind power and occurrence of Power Quality disturbances. The analysis will be shed into two different disturbances of the Power Quality: frequency transients due to wind turbulences; frequency transients due to grid contingences.