AN ALGORITHM FOR WIND TURBINE PROTECTION UNDER ICED ROTOR BLADESMustafa Sahin and Ilkay Yavrucuk Icing occurs on wind turbines and reduces the turbine aerodynamic performance by changing the blade shapes. It decreases the lift, increases the drag, and thereby the turbine thrust force. In this study, an adaptive algorithm for wind turbine protection is proposed and simulated by the MS Bladed Wind Turbine Simulation Model. The performance of the protection algorithm is tested by simulations for the NREL 5 MW wind turbine with iced rotor blades. The simulation results have shown that the proposed protection algorithm can effectually adapt to the changing turbine operational conditions, i.e., icing, and effectively protect the turbine from having large thrust forces throughout all the operational regions. |