Berlin 2015 – scientific programme

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DY: Fachverband Dynamik und Statistische Physik

DY 25: Nonlinear Stochastic Systems

DY 25.4: Talk

Tuesday, March 17, 2015, 15:45–16:00, BH-N 128

One single turbine to estimate fatigue within a wind farm — •Pedro Lind, Ivan Herraez Hernandez, Matthias Wächter, and Joachim Peinke — ForWind, Institute of Physics, Carl von Ossietzky University, 26111 Oldenburg, Germany

We propose a procedure to estimate the fatigue loads on wind turbines, based on a recent framework used for reconstructing data series of stochastic properties measured at wind turbines. Through a standard fatigue analysis, we show that it is possible to accurately estimate fatigue loads in any wind turbine within one wind farm, using only the load measurements at one single turbine and the set of wind speed measurements. Our framework consists of deriving a stochastic differential equation that describes the evolution of the torque at one wind turbine driven by the wind speed. The stochastic equation is derived directly from the measurements and is afterwards used for predicting the fatigue loads at neighboring turbines. Such a framework could be used to mitigate the financial efforts usually necessary for placing measurement devices in all wind turbines within one wind farm.