Periodic dynamic induction control of wind farms
Proving the potential in simulations and wind tunnel experiments
Joeri Alexis Frederik (TU Delft - Team Jan-Willem van Wingerden)
Robin Weber (Technische Universität München)
Stefano Cacciola (Politecnico di Milano)
Filippo Campagnolo (Technische Universität München)
A. Croce (Politecnico di Milano)
Carlo Bottasso (Technische Universität München)
Jan-Willem Van Van Wingerden (TU Delft - Team Jan-Willem van Wingerden)
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Abstract
As wind turbines in a wind farm interact with each other, a control problem arises that has been extensively studied in the literature: how can we optimize the power production of a wind farm as a whole? A traditional approach to this problem is called induction control, in which the power capture of an upstream turbine is lowered for the benefit of downstream machines. In recent simulation studies, an alternative approach, where the induction factor is varied over time, has shown promising results. In this paper, the potential of this dynamic induction control (DIC) approach is further investigated. Only periodic variations, where the input is a sinusoid, are studied. A proof of concept for this periodic DIC approach will be given by the execution of scaled wind tunnel experiments, showing for the first time that this approach can yield power gains in real-world wind farms. Furthermore, the effects on the damage equivalent loads (DEL) of the turbine are evaluated in a simulation environment. These indicate that the increase in DEL on the excited turbine is limited.
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