Patent ID: 7172392

Claim:
A wind turbine with at least one blade having a pitch axis that is offset laterally so that the blade does not intersect with an axis of rotation of a rotor shaft of the wind turbine, and a center of mass and an aerodynamic center are offset from the pitch axis in the direction parallel to the axis of rotation of a rotor shaft of the wind turbine, the blade being arranged so that the blade can pitch towards stall against the action of a resilient device, and also so that the centrifugal loading on at least one of the blade, and one or more components attached to the blade, acts against the spring in a direction to shed power by pitching the blade towards stall and also so that the torque loading provided by a power conversion device acts to pitch the blade in the opposite direction, so as to reduce the amount of load shedding whenever the power is being extracted from the wind turbine.