In this paper a method for reliability estimation of power systems including wind energy generators is presented. The method is useful to compare different wind turbine generator types and to establish the suitable wind generator type in a given area. The wind generator parameters to be considered for an optimal selection are also presented in details, having in view the improvement of system reliability indices concerning mainly the available generated power.

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Abstract-The increased integration of wind power into the electric power systems brings new challenges for effective planning and operation. The Weibull distribution is a widely used distribution, especially for modelling the random variable of wind speed. In the paper, the author presents a comparative analysis of some methods for estimating the Weibull parameters. These methods require historical wind speed data, collected over a certain time interval, to establish the parameters of the wind speed distribution for a particular location. Results for a real-world database, collected from the north-east area of Romania, are presented in a study case.

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