Abstract: Method for operating a pitch-controlled wind turbine, in which a set-point value for the generator torque (M) is prescribed in dependence upon a rotational speed (n) of the generator or of the rotor. A transition point (n3, M3) is provided at which a transition from a partial-load operation to a nominal-load operation occurs. A control of the rotational speed takes place by adjusting the blade pitch angle for a set-point value (M3) from the transition point. The values (n3, M3) of the transition point are determined in dependence upon a current value of the air density. With falling air density, the rotational speed (n3) is increased and/or the set-point value for the generator torque (M3) is reduced.

Abstract: Method for operating a pitch-controlled wind turbine, in which a set-point value for the generator torque (M) is prescribed in dependence upon a rotational speed (n) of the generator or of the rotor. A transition point (n3, M3) is provided at which a transition from a partial-load operation to a nominal-load operation occurs. A control of the rotational speed takes place by adjusting the blade pitch angle for a set-point value (M3) from the transition point. The values (n3, M3) of the transition point are determined in dependence upon a current value of the air density. With falling air density, the rotational speed (n3) is increased and/or the set-point value for the generator torque (M3) is reduced.

Abstract: A rotor blade for wind energy plants with a multiplicity of cross bores running transversely to the longitudinal axis of the rotor blade in the region of the blade base, which are provided for the accommodation of cross pins, wherein for fastening the rotor blade on a rotor blade fixture, tensioning elements act upon the cross pins wherein at least one of the cross bores has a distance from the hub-side rotor blade edge which is different from the distance of a further cross bore from the rotor blade edge.