Abstract: A wind turbine system for blade control which employs means for adjusting the pitch and yaw of the blades rotating about an axis and the resulting speed of the blades powering a wind turbine. The control system selectively resists movement of said blades to a different incline position based on a comparison of the measured rotational speed with a target speed value, the target speed value being determined based on an energy output level for said turbine. The control system includes at least one adjustable hydraulic actuator for movement of said blades to a different incline position.

Abstract: A wind turbine and system related to the control of wind turbines. The wind turbine device is comprised of a plurality of blades arranged for rotation about an axis. During use the blades are moveable between different incline positions relative to a plane substantially normal to the axis. The control system allows for the detection of the rotational speed of the blades about the axis and for selectively resisting movement of the blades to a different incline position based on a comparison of the rotational speed with a target speed value determined by the energy output level for the turbine.