Impact of renewable energies on the electromechanical phenomena of electricity grids

Abstract

At present, as in any industrial process, the generation of electricity is obliged to reduce polluting emissions into the environment. Therefore, the vast majority of governments are promoting the use of renewable generation sources mainly based on solar and wind energy. However, due to the low inertia characteristic of this type of electricity generation, the security of the grids is compromised, since in the presence of a severe disturbance there can be uncontrolled disconnections of generation plants, consumption centers and eventually the total collapse of the electrical system (blackout). Therefore, the present research work presents simulations in the time domain to graphically analyze the degradation of the security of electricity grids before the incorporation of renewable generation plants. To achieve this objective, a 3-generator, 9-node test system was used from the literature.