Articles | Volume 6, issue 3
Wind Energ. Sci., 6, 791–814, 2021
Wind Energ. Sci., 6, 791–814, 2021

Research article 02 Jun 2021

Research article | 02 Jun 2021

Active flap control with the trailing edge flap hinge moment as a sensor: using it to estimate local blade inflow conditions and to reduce extreme blade loads and deflections

Sebastian Perez-Becker et al.

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Cited articles

Andersen, P. B.: Advanced Load Alleviation for Wind Turbines using Adaptive Trailing Edge Flaps: Sensoring and Control, PhD thesis, Technical University of Denmark, Risø, Denmark, 2010. a
Andersen, P. B., Henriksen, L., Gaunaa, M., Bak, C., and Buhl, T.: Deformable trailing edge flaps for modern megawatt wind turbine controllers using strain gauge sensors, Wind Energy, 13, 193–206,, 2010. a
Bak, C., Madsen, H. A., and Johansen, J.: Influence from Blade-Tower Interaction on Fatigue Loads and Dynamics, in: Proceedings of the 2001 European Wind Energy Conference and Exhibition, Copenhagen, Denmark, 394–397, 2001. a
Bak, C., Zahle, F., Bitsche, R., Kim, T., Yde, A., Henriksen, L. C., Andersen, P. B., Natarajan, A., and Hansen, M. H.: Design and Performance of a 10 MW Wind Turbine, Tech. Rep. I-0092, DTU Wind Energy, Roskilde, Denmark, 2013. a, b, c
Barlas, T. and van Kuik, G. A. M.: Review of State of the Art in Smart Rotor Control Research for Wind Turbines, Prog. Aerosp. Sci., 46, 1–27,, 2010. a
Short summary
Active trailing edge flaps can potentially enable further increases in wind turbine sizes without the disproportionate increase in loads, thus reducing the cost of wind energy even further. Extreme loads and critical deflections of the turbine blade are design-driving issues that can effectively be reduced by flaps. This paper considers the flap hinge moment as an input sensor for a flap controller that reduces extreme loads and critical deflections of the blade in turbulent wind conditions.