Dynamic Aeroelastic Response of Stall-Controlled Wind Turbine Rotors in Turbulent Wind Conditions

With the current global trend of wind turbines to be commissioned, next generation state-of-the-art will have a generating capacity 20 MW with rotor diameters 250 m or larger. This systematic increase in size is prompted by economies-of-scale factors, thereby resulting continuously decreasing cost per kWh generated. However, such large rotors larger masses associated them and necessitate studies order better understand their dynamics. The present work regarding aeroelastic behavior stall-controlled involves study frequency content time evolution oscillatory behavior. A wide range experiments were conducted assess effects rapid variations on rotor’s operational conditions. Various gust conditions tested at different speeds, which are represented pulses intensities, occurring suddenly an otherwise constant regime. allowed us observe pure aero-elasto-inertial dynamics response. reduced-order characterization as system was obtained basis energy-transfer principles. fundamental interest for researchers engineers working developing optimized control strategies turbines. It allows critical elements dynamic described model that can solved real time, essential requirement determining predictive actions.