To provide a machine nacelle rotatably supported on a rotation axis with a tower and one rotor blade positioned separated in the radial direction concerning a rotor shaft and which is extended roughly along a direction of the top part of the tower, favorably in a direction of gravity of the tower.
This wind power generation device has a rotor rotatably supported concerning the axis of rotation roughly in the horizontal direction at a part, a sensor means related to the rotor and to generate a sensor signal in accordance with a mechanical load of the rotor, an analyzing means and especially a data processing means. Two of sensor elements or favorably each of pairs of the sensor elements is related to at least one rotor blade of the rotor or favorably each of the rotor blades, and an estimation means is designed to determine an estimation signal to express the mechanical load of the rotor blade in accordance with the sensor signal generated by the sensor element related to the one rotor blade.
Hirokazu Ogura
Nobukazu Ito