Rio de Janeiro – Brazil

Abstract – This paper presents some results of studies performed to evaluate the impact of using wind energy based generation on power systems composite reliability evaluation. The reliability evaluation is based on non-sequential Monte Carlo simulation for consideration of both generation and transmission systems failure events. The stochastic models for the conventional generation units and the transmission elements are the two state or multiple states Markov models, usually adopted in reliabil-ity studies. For the wind energy based generation units, a special model is developed based on a combination of the wind velocity characteristic and the multiple power output levels associated with the velocity of the wind turbine. Three different impact studies is performed: wind genera-tion penetration degree, wind generation farm location and a comparison with other energy sources. The test system used is the IEEE RTS-79 modified to include the representation of the wind plants. The results obtained allow for the quantitative and qualitative analysis of wind generation influence on composite system reliability for several generation level and connection point scenarios