Floating Offshore Wind Farm Control via Turbine Repositioning with Aerodynamic Force

This paper overviews a wind farm control technique via turbine repositioning, which is exclusively applied to floating offshore wind turbines. The wind turbines are repositioned to modify the wind farm layout based on the wind condition and the power demand, in order to maximize the wind farm efficiency. The repositioning mechanism which manipulates the aerodynamic force by means of conventional wind turbine control inputs is explained. Potential advantages of the turbine repositioning for wind farm control are demonstrated in simulations using the medium-fidelity wind farm simulator FAST.Farm developed by the National Renewable Energy Laboratory (NREL) and an example floating offshore wind farm which consists of three NREL 5MW semi-submersible baseline wind turbines. Finally, potential future research directions in this wind farm control technique are provided.