Wind turbines and methods for controlling wind turbine loading

Abstract

Wind turbines and methods for controlling wind turbine loading are provided. In one embodiment, a method includes the steps of determining a current wind speed. The method further includes determining a tip speed ratio and a pitch angle that maximize a power coefficient under at least one of the following conditions: a thrust value is less than or equal to a pre-established maximum thrust, a generator speed value is less than or equal to a pre-established maximum generator speed, or a generator torque is less than or equal to a pre-established maximum generator torque. The method further includes calculating a desired generator speed value based on the current wind speed and a tip speed ratio. The method further includes calculating a desired generator power value based on the desired generator speed value.

Description

technical field [0001] The present disclosure relates generally to wind turbines, and more particularly, to methods for controlling wind turbine loads in wind turbines. Background technique [0002] Wind power is considered to be one of the cleanest and most environmentally friendly energy sources currently available, and for this reason wind turbines are receiving increasing attention. A modern wind turbine typically includes a tower, a generator, a gearbox, a nacelle, and a rotor including one or more rotor blades. The rotor blades capture kinetic energy from the wind using known airfoil principles and transfer the kinetic energy through rotational energy to turn a shaft that couples the rotor blades to a gearbox or, if a gearbox is not used, the rotor blades directly coupled to the generator. The generator then converts the mechanical energy into electrical energy, which can be deployed to the grid. [0003] During operation of a wind turbine, various components of the...

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The method involves determining the current wind speed

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