Abstract: The invention concerns a method of operating a wind power installation for generating electrical power from wind, wherein the wind power installation is operated selectively in a first or a second operating mode, and the wind power installation in the first operating mode generates as much electrical power as is possible on the basis of the prevailing wind and the design of the wind power installation, and the wind power installation in the second operating mode generates less electrical power than in the first operating mode, wherein the wind power installation is controlled in the first operating mode with a first adjustment parameter set and in the second operating mode with a second adjustment parameter set different from the first adjustment parameter set, and when the wind power installation is operated in the second operating mode the power which can be generated at a maximum with the first adjustment parameter set or a differential power as the difference between that maximum power which can be genera

Abstract: There is provided a transport vehicle for transporting wind power installation rotor blades and/or pylon segments. The transport vehicle has a transport support structure having a main frame, a receiving frame fixedly connected to the main frame at a first angle, and a rotary displacement unit which is fixed with one end to the receiving frame and which at its second end has a blade adaptor for receiving a rotor blade or a pylon segment. The main frame spans a main plane. The rotary displacement unit has at least one first rotary mounting, wherein there is provided a second angle between the second rotary plane of the second rotary mounting.

Abstract: The invention relates to a ship, in particular a freight ship, comprising an outer wall and a gangway for embarking and disembarking the ship, which can be moved backwards and forwards between an embarking/disembarking position and a stored position when the ship is being driven. The invention also relates to a ship in which the gangway comprises a base having a lower surface which, when said gangway is in the stored position, is flush with the surface of the outer wall. The invention also relates to a gangway for embarking and disembarking a ship, which is embodied according to the claimed invention for use on a ship.

Abstract: There is provided a turbine for a hydroelectric power plant comprising a hub, a plurality of turbine blades provided on the hub, a pitch angle adjusting unit coupled to the turbine blades for adjusting the pitch angle of the turbine blades, a double-acting hydraulic cylinder and a piston rod connected thereto. The piston rod is coupled to the pitch angle adjusting unit in such a way that the pitch angle adjusting unit performs a rotational movement when the piston rod is moved in the longitudinal direction. The double-acting hydraulic cylinder is provided in a hydraulic chamber coupled by way of a first and a second hydraulic line so that the double-acting hydraulic cylinder is displaceable by feed of a hydraulic fluid through the first or second hydraulic line and thus leads to adjustment of the pitch angle of the turbine blades by way of the coupling to the piston rod and the pitch angle adjusting unit.

Abstract: The invention relates to a ship comprising a plurality of Magnus rotors. Each Magnus rotor is associated with an electric motor which can be controlled individually and which is used to rotate the Magnus rotor. Each electric motor is associated with a converter in order to control the rotational speed and/or the rotational direction of the electric motor. The ship also comprises a central control unit which is connected to the converters, to control the individual converters, in order to control the rotational speed and/or the rotational direction of the Magnus rotors, independently from the other Magnus rotors. The ship also comprises an electric motor as the main drive of the ship, a converter for controlling the electric motor is associated with the electric motor. Said control unit controls the Magnus rotor in a first operational mode in such a manner that a maximal drive force is reached.

Abstract: There is provided a wind power installation rotor blade comprising a rotor blade nose, a rotor blade trailing edge, a rotor blade root region for fixing the rotor blade to a hub of a wind power installation and a rotor blade tip. The rotor blade extends from the rotor blade root region along a longitudinal axis to the rotor blade tip. The rotor blade further has an air distribution unit having an adjusting member for directing an air flow into the rotor blade nose region and/or a rotor blade trailing edge region.

Abstract: A wind power plant tower segment is provided. The tower segment is designed as a jacket segment and comprises a reinforced concrete body, comprising two faces for attaching to faces of at least one further tower segment. In the region of each face, at least one connecting body is introduced in the reinforced concrete body and anchored therein for connecting to a connecting body of an adjoining tower segment. The connecting body comprises a fastening wall that is disposed substantially parallel to the respective face for absorbing a tensile load that is directed transversely to the face and transversely to the fastening wall. A wind power installation pylon having a plurality of such pylon segments, a wind power installation having a corresponding pylon, and a process for the production of a plurality of pylon segments is also provided.

Abstract: The invention concerns a processing apparatus for processing an upper segment edge of a pylon segment of a concrete pylon for preparing the pylon segment for placement thereon of at least one further pylon segment. According to the invention it is proposed that the processing apparatus includes a processing means for processing the segment edge, and a carrier apparatus to be fixed in the region of the segment edge for displaceably carrying and guiding the processing means along the segment edge.

Abstract: The invention relates to a method for feeding electrical current into an electrical, three-phase power supply system having a first phase, a second phase and a third phase with a first voltage, a second voltage and a third voltage at a power supply system frequency, comprising the steps of: measuring the first, second and third voltages, transforming the first, second and third voltages into a positive phase-sequence voltage system and a negative phase-sequence voltage system according to the method of symmetrical components, calculating a first desired current, a second desired current and a third desired current for feeding into the first, second and third phases of the power supply system, wherein the first, second and third desired currents are calculated on the basis of at least one value of the positive phase-sequence voltage system and/or the negative phase-sequence voltage system.

Abstract: One embodiment of the invention relates to a method for controlling a wind turbine, having the steps of detecting an internal fault signal which is generated in the first wind turbine and which indicates a disruption of the first wind turbine; receiving at least one external fault signal which is generated outside of the first wind turbine and which indicates a disruption of another wind turbine; and evaluating the internal fault signal dependent on the at least one external fault signal.

Abstract: The invention relates to a lifting beam for lifting and handling a rotor blade of a wind energy plant, comprising a fastening means for fastening the lifting beam to a crane, at least one fastening means for fastening the lifting beam to the rotor blade a longitudinal pivoting means for pivoting the rotor blade which is supported by the lifting beam about a longitudinal axis of the rotor blade, and/or a transverse pivoting means for pivoting the rotor blade which is supported by the lifting beam about a transverse axis perpendicular to the longitudinal axis. The invention further relates to a method for mounting rotor blades of a wind energy plant using a lifting beam according to the invention.

Abstract: There is provided a lifting unit for lifting a rotor of a wind power installation. The lifting unit has at least one first sling for looping around a region of a rotor blade on a rotor of the wind power installation, which region is near the rotor blade root, at least one transverse strut, at least one first and second strut or sling portion, and at least one first and second hinge unit. The at least one first and second struts or sling portions extend between the at least one first and second hinge units and the transverse strut. The lifting unit further has at least one second sling having first and second sling portions and a strut. The first ends of the first and second sling portions are fixed to the first and second hinge units. The second sling is adapted to be arranged around a rotor blade stub.

Abstract: The present invention concerns a method of feeding electric power into an electric network wherein the feed is effected by means of at least one wind power installation with a first feed-in arrangement at a feed-in point into the electric network, and the feed is effected in dependence on electric parameters in the network and measurement values of the electric parameters or measurement values for determining the electric parameters are detected at measurement times at predetermined time intervals and wherein the measurement times are synchronized to an external time signal available outside the first feed-in arrangement.

Abstract: There is provided a wind power installation foundation having a reinforcement comprising a plurality of steel bars and radial steel bars and a lower pylon segment having a plurality of holes in the wall of the pylon segment for receiving the bars or radial bars. In addition there is provided a concrete body which covers the reinforcement and the lower portion of the pylon segment. The foundation has a plurality of holders for holding the bars or radial bars of the reinforcement. The holder has an upper bracket for fixing to the pylon segment and a lower foot for receiving the bars or radial bars of the reinforcement. The length of the holder is adapted to be variable.

Abstract: The present invention relates to a method for producing a tower segment of a concrete tower of a wind energy installation, comprising the steps: providing a segment mold having at least one formwork for defining a mold of the tower segment that is to be produced and for filling with concrete; filling the segment mold with concrete in order to form the tower segment by the subsequent hardening of the concrete; measuring the tower segment thus hardened for creating a three-dimensional, virtual actual model of said tower segment; producing said three-dimensional actual model; comparing the three-dimensional actual model with a predefined mold, in particular a stored three-dimensional, virtual target model; and determining a deviation between both virtual models and changing the segment mold, in particular changing the at least one formwork when the deviation exceeds a first predefined threshold value.

Abstract: The invention concerns a large-size rolling bearing which is in the form of a multi-row ball-bearing rotary joint for carrying axial loads, radial loads and tilting moments. The large-size rolling bearing has an outer race, an inner race, a first ball row and a second ball row. The first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, associated with the first ball row are four raceway portions and associated with the second ball row are four raceway portions. The invention concerns in particular a large-size rolling bearing in which a surface of a respective raceway portion provided in the inner race is larger than the surface of the respectively adjacent raceway portion provided in the inner race and equal to the surface of the respectively diametrally oppositely disposed raceway portion provided in the outer race.

Abstract: There is provided a wind power installation pylon comprising a plurality of pylon segments which respectively have an upper and a lower horizontal flange. At least one of the plurality of the pylon segments has at least two longitudinal flanges. Each longitudinal flange has a first side for bearing against a first side of a further longitudinal flange and a second side to which the peripheral surface is welded, wherein the second side is opposite to the first side.

Abstract: The invention relates to a laminated core assembly of an electric generator, in particular of a generator of a gearless wind turbine. The laminated core assembly comprises at least one laminated core, at least one winding arranged around the laminated core, and an electrical insulating means arranged between the laminated core and the winding, wherein the insulating means has a composite material for conducting the heat arising in the winding.

Abstract: The present invention concerns a method of controlling a wind power installation having a generator with a stator, a pole wheel with at least two rotor poles with a respective pole winding for producing a magnetic field guided in the respective rotor pole, and an air gap between the stator and the pole wheel, including the steps— controlling a respective exciter current through each pole winding,— varying at least one of the exciter currents relative to at least one further one of the exciter currents, and/or— varying at least one of the exciter currents in dependence on the position of the pole wheel in relation to the stator.

Abstract: The present invention concerns a method of optically assessing a wind power installation or a part thereof, in particular a rotor blade, including the steps: orienting a camera on to a region to be assessed, recording a photograph of the region to be assessed with the camera, detecting the position of the photographed region, and associating the ascertained position with the photographed region.