Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
704226 | Electric Power Systems Research | 2016 | 8 Pages |
•New method to obtain the parameters of the logistic function applied to wind turbine power curves.•The parameters of the logistic function are obtained in a deterministic way and they have technical meaning.•Alternative models, based on the logistic function, to the power curve are proposed considering several aproximations.
The current procedure for obtaining the parameters of the logistic function, used as a model for the power curve of wind turbines, provides meaningless values. These values are different for each wind turbine and obtaining them requires an optimization process. This paper proposes a procedure to obtain the parameters of the 4-parameter logistic function based on the features of the power curve, providing a model that is a function of the power curve parameters supplied by the manufacturer. Furthermore, that model can be used to derive another 4-parameter model and a 3-parameter model is proposed for certain conditions. The three models consist of a continuous function which simplifies the implementation of the curve in a computer program compared to piecewise models. In addition, the probability density function of the output power of a wind turbine is derived by using each model.