Abstract: A method and apparatus for operating a wind energy plant with a rotor blade control, a torque control and a control unit. A power limited mode of operation presets a desired value for the fed power, which is smaller than the rated value for the plant. On a threshold rotational speed, the torque is lowered through the torque control such that the preset desired value for the power is not exceeded. The threshold rotational speed, depending on the preset desired value for the moment (Mdesired), is set to a value smaller than the rated value for the rotational speed.

Abstract: A method for the earthwork of a foundation sunk for a wind energy facility, which has the following steps: an anchor cage is provided, consisting of an anchor plate and several anchoring bolts which are connected with the anchor plate, the free ends of the anchoring bolts are guided through bores in at least one load distribution plate the load distribution plate lays on at least three bolt nuts, which are screwed on the anchoring bolts, a reinforcement for the foundation sunk is mounted and the anchor cage is poured in with the reinforcement, the anchoring bolts protruding with the bolt nuts in this, upon subsequent tightening of the anchoring bolts between anchor plate and load distribution plate, the bolt nuts are stripped over the thread of the anchoring bolt and loose their supporting capability.

Abstract: A method for operating a wind energy plant with a rotor having rotor blades which have an adjustable blade pitch, characterised in that the adjustment of the blade pitch takes place with an adjustment velocity and/or an adjustment acceleration, wherein the magnitude of the adjustment velocity and/or the magnitude of the adjustment acceleration is depending from a desired value and an actual value of the blade pitch.

Abstract: An apparatus for the lubrication of a roller bearing of a wind energy plant, with a container for lubricant having a chamber, which is divided into a chamber portion for fresh lubricant and a chamber portion for used lubricant through a movable piston, wherein each chamber portion is connected via a line to a lubricant channel passing through the roller bearing.

Abstract: A method for the operation of a wind energy plant, with a synchronous generator, a superimposition gearbox, which is connected between rotor shaft and generator shaft, and a drive unit, wherein before connecting the synchronous generator to the electric grid, the drive unit drives the synchronous generator until the same has reached its rated rotational speed.

Abstract: A wind park with a plurality of wind energy plants, which each have one plant control, which presets a desired value for the active power to its wind energy plant, and with a park control, which presets a desired value for the active power to be generated for each plant control and limits the active power fed by the wind park to a preset value, by shutting down a first group of wind energy plants and presetting a desired value for the active power to a second group of wind energy plants at a time, characterised in that the park control starts the wind energy plants of the first group again when the sum of the actual values of the active power of the wind energy plants of the second group has reached the preset desired value and/or a predetermined time duration has elapsed.

Abstract: A method for the operation of a wind turbine generator plant with a rotor blade angle control and a torque control, wherein in a full-load operation, starting from a predetermined speed (nAbsenkung), a preset torque is lowered by the torque control in such a way that a predetermined value for a provided power (P) is not exceeded.

Abstract: A wind energy plant with a rotor, which is coupled to a gear via a rotor shaft, the rotor shaft being double bearing mounted via one rotor side bearing and one gear side bearing, wherein a connection between rotor shaft and gear is provided at the gear side of the gear side bearing, and the gear side bearing props up on a machine carrier via at least one supporting equipment and the gear is detachably connected with the supporting equipment.

Abstract: Wind power installation for generating electrical energy with at least two components which respectively have sensors and actuators and comprise a control unit, each of the control units being connected to a data network and exchanging with the control units of the other components, signals for the operating conditions of the components, detected sensor values and/or control signals for the other components.

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.

Abstract: A method for operating a device to vary a blade setting angle on a rotor blade of a wind power plant, comprising two variable drives each per rotor blade, a bearing element acting between the rotor blade and rotor hub which has a freely rotatable bearing ring, wherein the method has the following process steps: setting the bearing ring into a permanent rotation by a first drive, and adjusting the setting angle of the rotor blade by a second drive.

Abstract: A method for the operation of a wind turbine generator system adapted to be switched into the mains, including a variable-speed rotor, a torque governor, and a governor for the angle of blade attack, characterized in that the speed of the rotor is regulated by varying the angle of attack before the wind turbine generator system is switched into the mains.

Abstract: Method for torque and pitch control/adjustment for a wind power plant according to the rotational speed according to a characteristic curve, in which at partial load operation in a first section the torque is adjusted up to a first predetermined rotational speed, at partial load operation in a second section the torque is adjusted from the first rotational speed up to a second rotational speed, at full load operation in a third section at least one pitch of a rotor blade is adjusted for rotational speeds greater than the second rotational speed, at full load operation, in a fourth section, the pitch is adjusted for rotational speeds lower than the second rotational speed and greater than the third rotational speed, if a control has been previously carried out according to the third section, and at partial load operation in a fifth section the torque is adjusted for rotational speeds lower than the third rotational speed, if a control has been previously carried out according to the fourth section.

Abstract: A method for a functional test of a wind turbine generator plant which comprises the following procedural steps: a control unit for the wind turbine generator plant reads in actual values from at least one structural part of the wind turbine generator plant and generates control signals for actuators of the wind turbine generator plant, a simulation unit has at least one input and at least one output as well as one or more mathematical models which depict the behaviour of one or more structural parts of the wind turbine generator plant, the control signals are applied to the input of the simulation unit and the modeled actual values of the models on the structural parts are applied to the output of the simulation unit, wherein the actual values of the simulation unit are applied to the input of the control unit and the control signals of the control unit are applied to the input of the simulation unit; the simulation unit models the actual values of the structural parts resulting for the control signals appli

Abstract: A rotor blade for a wind power plant, comprising an upper shell and a lower shell which are joined to each other and have a trailing edge each, and which has a profile extending in the direction of flow and, at its rear end, exhibiting a profile trailing edge of a thickness, wherein the trailing edges of the upper and lower shells are spaced apart in at least one area of the rotor blade such that the thickness of the profile trailing edge is defined by one of the shells.

Abstract: A method for the production of a leadthrough in a fibre compound material for a rotor blade, with the following procedure steps: an opening free of fibres (12) is provided in a half-finished fibre product such that the fibres run around the opening (12), the half-finished fibre product is processed into a fibre compound material by adding a matrix material, and the leadthrough is put in place through the opening in the half-finished fibre product.

Abstract: A method for the earthwork of a foundation sunk for a wind energy facility, which has the following steps: an anchor cage is provided, consisting of an anchor plate and several anchoring bolts which are connected with the anchor plate, the free ends of the anchoring bolts are guided through bores in at least one load distribution plate the load distribution plate lays on at least three bolt nuts, which are screwed on the anchoring bolts, a reinforcement for the foundation sunk is mounted and the anchor cage is poured in with the reinforcement, the anchoring bolts protruding with the bolt nuts in this, upon subsequent tightening of the anchoring bolts between anchor plate and load distribution plate, the bolt nuts are stripped over the thread of the anchoring bolt and loose their supporting capability.