Abstract: A method for setting a fully or partially built wind power installation having a rotor having a plurality of rotor blades whose blade angle can be adjusted, wherein the wind power installation can take on variable operating situations, and each operating situation is characterized by a combination of settable installation settings of the wind power installation and environmental conditions that can be captured, with the result that an operating situation can be set for given environmental conditions by setting the installation settings, and operating situations that should be avoided and/or suitable operating situations are stored in a memory by storing a combination of environmental conditions and installation settings as a combination to be avoided for an operating situation that should be avoided in each case, and/or storing a combination of environmental conditions and installation settings as a suitable combination for a suitable operating situation in each case, and, to avoid operating situations that s

Abstract: A steel tower ring segment for a wind turbine tower section, to a wind turbine tower section, to a wind turbine tower and to a wind turbine, and also to methods for producing a steel tower ring segment and a wind turbine tower section. A steel tower ring segment for a wind turbine tower section, comprising a first casing segment with a segment height, a segment length in the segment circumferential direction, a first segment thickness, and a first horizontal joint side, wherein the first casing segment has a first thickening region in a region adjoining the first horizontal joint side, wherein the first thickening region has a first thickening thickness, and the first thickening thickness is larger than the first segment thickness, wherein the first thickening region has a first cutout, wherein the first cutout is arranged spaced apart from the first horizontal joint side, and wherein a first passage opening leads from the first cutout to the first horizontal joint side.

Abstract: A method for producing a split rotor blade, a method for connecting a split rotor blade, a rotor blade, a rotor blade segment, a rotor, a wind power plant, and a production device for producing rotor blades. A method for producing a split rotor blade, comprising: providing a rotor blade having a spar cap and an extension in the longitudinal direction from a blade root region to a blade tip; making at least one groove in the spar cap, the groove being arranged in a first connection region of the rotor blade, and a portion of the main extension direction of the groove being oriented parallel to the longitudinal direction; splitting the rotor blade, in the first connection region, into a rotor blade section facing the blade root and a rotor blade section facing away from the blade root, a first groove section being arranged in the rotor blade section facing the blade root and a second groove section being arranged in the rotor blade section facing away from the blade root.

Abstract: A steel tower ring segment for a wind turbine tower section, to a wind turbine tower section, to a wind turbine tower and to a wind turbine, and also to methods for producing a steel tower ring segment and a wind turbine tower section. A steel tower ring segment for a wind turbine tower section, comprising a first casing segment with a segment height, a segment length in the segment circumferential direction, a first segment thickness, and a first horizontal joint side, wherein the first casing segment has a first thickening region in a region adjoining the first horizontal joint side, wherein the first thickening region has a first thickening thickness, and the first thickening thickness is larger than the first segment thickness, wherein the first thickening region has a first cutout, wherein the first cutout is arranged spaced apart from the first horizontal joint side, and wherein a first passage opening leads from the first cutout to the first horizontal joint side.

Abstract: Provided is a method for adapting an operating characteristic of a wind power installation. The installation has a rotor with rotor blades having adjustable blade angles and operable with a variable rotor rotational speed. To control the installation, use is made of an operating characteristic which describes a relationship between the rotor rotational speed and an operating variable. The operating characteristic has a first portion with a first rotational speed range and a second portion with a second rotational speed range. The first rotational speed range has lower rotational speeds than the second rotational speed range, and the operating characteristic is adapted such that values of the operating variable of the first portion are increased values of the variable of the second portion are changed toward higher rotational speeds, and an expected total number of revolutions of the rotor over a predetermined lifetime of the installation remains approximately the same.

Abstract: A manufacturing method for producing a tower segment, a tower portion and a tower section for a tower, in particular for a tower of a wind power installation. A tower segment, a tower portion and a tower section for a tower, in particular for a tower of a wind power installation, to a tower, and to a wind power installation.

Abstract: Provided is a displaceable maintenance device, to a displaceable assembly device, to a method for servicing a fastening element, and to a method for servicing and/or assembling a fastening element of a flange of a wind power installation tower. Provided is a displaceable maintenance device for a wind power installation tower, comprising a mobile unit which is specified for moving the maintenance device along a flange of the wind power installation tower; a first maintenance unit having an impact element for impacting a fastening element, in particular a flange connection element, and a noise-receiver unit for detecting a noise generated by the impacting; a control unit for evaluating the noises detected by means of the noise-receiver unit, said control unit, based on the evaluation, being specified for assigning a maintenance status to a fastening element.

Abstract: A method for a wind turbine in an emergency mode. In that case a change in the wind direction and/or a force exerted on the wind turbine is detected and at least one of the rotor blades is adjusted in dependence on the change while maintaining the yaw angle of the yaw setting. A control means for a wind turbine and a wind turbine.

Abstract: Provided is a displaceable maintenance device, to a displaceable assembly device, to a method for servicing a fastening element, and to a method for servicing and/or assembling a fastening element of a flange of a wind power installation tower. Provided is a displaceable maintenance device for a wind power installation tower, comprising a mobile unit which is specified for moving the maintenance device along a flange of the wind power installation tower; a first maintenance unit having an impact element for impacting a fastening element, in particular a flange connection element, and a noise-receiver unit for detecting a noise generated by the impacting; a control unit for evaluating the noises detected by means of the noise-receiver unit, said control unit, based on the evaluation, being specified for assigning a maintenance status to a fastening element.

Abstract: A method for operating a wind turbine, and the wind turbine has an aerodynamic rotor with a rotor hub and with rotor blades of which the blade angle can be adjusted, and the aerodynamic rotor can be adjusted in respect of its azimuth direction, and the method comprises the steps of detecting a storm situation in which the prevailing wind is so strong that the wind turbine is moved to a coasting mode for self-protection purposes, orienting the rotor in respect of its azimuth position into a low-loading orientation in relation to the wind, in which orientation the wind turbine is subjected to as little loading as possible by the wind from a main wind direction, detecting at least one loading (LM) which is caused by a gust of wind and acts on the rotor, and adjusting at least one of the rotor blades in respect of its blade angle such that the at least one rotor blade is subjected to as little loading as possible by the causative gust of wind.

Abstract: A method for producing a split rotor blade, a method for connecting a split rotor blade, a rotor blade, a rotor blade segment, a rotor, a wind power plant, and a production device for producing rotor blades. A method for producing a split rotor blade, comprising: providing a rotor blade having a spar cap and an extension in the longitudinal direction from a blade root region to a blade tip; making at least one groove in the spar cap, the groove being arranged in a first connection region of the rotor blade, and a portion of the main extension direction of the groove being oriented parallel to the longitudinal direction; splitting the rotor blade, in the first connection region, into a rotor blade section facing the blade root and a rotor blade section facing away from the blade root, a first groove section being arranged in the rotor blade section facing the blade root and a second groove section being arranged in the rotor blade section facing away from the blade root.

Abstract: A method for operating a wind turbine, and the wind turbine has an aerodynamic rotor with a rotor hub and with rotor blades of which the blade angle can be adjusted, and the aerodynamic rotor can be adjusted in respect of its azimuth direction, and the method comprises the steps of detecting a storm situation in which the prevailing wind is so strong that the wind turbine is moved to a coasting mode for self-protection purposes, orienting the rotor in respect of its azimuth position into a low-loading orientation in relation to the wind, in which orientation the wind turbine is subjected to as little loading as possible by the wind from a main wind direction, detecting at least one loading (LM) which is caused by a gust of wind and acts on the rotor, and adjusting at least one of the rotor blades in respect of its blade angle such that the at least one rotor blade is subjected to as little loading as possible by the causative gust of wind.

Abstract: A method for operating a wind farm with a number of wind power installations is provided. Each wind power installation respectively has a nacelle with an aerodynamic rotor with one or more rotor blades and a generator. Each of the wind power installations is variable in its azimuth position and at least two of the wind power installations are so close together that, depending on the direction of the wind, they can influence one another by way of the wind. At least a first of the wind power installations is cut back in dependence on its azimuth position in order to positively influence the wind for a further wind power installation arranged downwind of the first.

Abstract: A rotor blade of a wind power installation, comprising an inner section in which the rotor blade is fastened on a rotor hub, and an outer section, which is connected to the rotor blade and comprises a rotor blade tip. The rotor blade has at least partially a flat back profile having a truncated rear edge in the inner section, and at least one control unit for controlling the wake is provided on the rotor blade on the flat back profile.

Abstract: The present invention relates to a method for operating a wind turbine having a rotor with rotor blades and an essentially horizontal rotation axis for generating electrical energy from wind energy. According to the invention, it is proposed for the wind turbine to be aligned such that the azimuth position of the wind turbine departs by an azimuth adjustment angle from an alignment into the wind, and/or that the blade angle of the rotor blades is adjusted in cyclic rotation such as to reduce alternating loads that are caused by a height profile of the wind.