Tibaldi, Carlo1; Henriksen, Lars Christian2; Hansen, Morten Hartvig1; Bak, Christian1
1 Department of Wind Energy, Technical University of Denmark2 Aeroelastic Design, Department of Wind Energy, Technical University of Denmark
The eects of dierent gain-scheduling methods for a classical wind turbine controller, operating in full load region, on the wind turbine aeroservoelastic modes and loads are investigated in this work. The dierent techniques are derived looking at the physical problem to take into account the changes in the aerodynamic characteristics as a function of the wind speed. The modal analysis is performed with a high-order linear aeroservoelastic model computed with the frequency based stability tool HAWCStab2. The time series of the wind turbines loads are computed with the non-linear time domain tool HAWC2. Results show changes in the natural frequency and in the damping ratio of the speed regulator mode and of the tower longitudinal mode when using the dierent gain-scheduling schemes.
Proceedings of 32nd Asme Wind Energy Symposium, 2014
Main Research Area:
AIAA SciTech 2014; 32nd ASME Wind Energy Symposium