Bolt preloading check system

A bolt system for indicating a level of preload of a bolt that is connectable to a subject to be fixed is disclosed The bolt system includes the bolt with a bolt head, a first sleeve attached to the bolt between the bolt head and the subject and a second sleeve attached to the bolt between the bolt head and the subject. The first sleeve is an inner sleeve and the second sleeve is an outer sleeve that fits around the first sleeve. One sleeve is longer than the other sleeve. When the preload is below a maximum value, the longer sleeve transmits the preload between the bolt head and the subject. When the preload is above the maximum value, the longer sleeve is compressed in such a way that both sleeves transmit the preload between the bolt head and the subject. 111.-. (canceled)12. A bolt system for indicating a level of preload of a bolt that is connectable to a subject to be fixed , the bolt system comprising:the bolt which comprises a bolt head;a first sleeve attached to the bolt between the bolt head and the subject; anda second sleeve attached to the bolt between the bolt head and the subject,wherein the first sleeve is an inner sleeve and the second sleeve is an outer sleeve that fits around the first sleeve,wherein one sleeve is longer than the other sleeve,when the preload is below a maximum value the longer sleeve transmits the preload between the bolt head and the subject, andwhen the preload is above the maximum value, the longer sleeve is compressed in such a way that both sleeves transmit the preload between the bolt head and the subject.13. The bolt system of claim 12 ,wherein the longer sleeve comprises elastic characteristics that are defined in such a way that the length of the first sleeve when transmitting the maximum value of the preload is definable.14. The bolt system of claim 12 ,wherein the first sleeve is the longer sleeve with respect to the second sleeve.15. The bolt system of claim 14 ,wherein the second sleeve is slideably attached to the ...

Three row roller bearing, in particular for a wind turbine

A three row roller bearing, in particular for a wind turbine, is provided. The three row roller bearing includes a row of radial rollers receiving radial load and a pair of rows of axial rollers receiving axial load. The axial rollers are tapered. A wind turbine using the three row roller bearing is also provided.

Magnetic Cap Element for a Stator of a Generator

A stator system for a generator, in particular a generator of a wind turbine is disclosed. The stator system includes a housing element including a groove and a cap element for closing the groove such that a channel for guiding a cooling fluid within the groove is formed. The cap element includes a magnetic material. 111-. (canceled)12. A stator system of a wind turbine generator , the stator system comprising:a housing element comprising a groove, anda cap element mounted to the housing element to close the groove such that a channel for guiding a cooling fluid within the groove is formed,wherein the cap element comprises a magnetic material.13. The stator system according to claim 12 , further comprisingan insulation layer that is located between the cap element and an inner volume of the groove.14. The stator system according to claim 12 , further comprisinga resin layer that covers the housing element and the cap element.15. The stator system according to claim 12 , further comprisingwherein the housing element comprises a first three dimensional contour,wherein the cap element comprises a second three dimensional contour, andwherein the second three dimensional contour is complementary to the first three dimensional contour in such a way that the cap element is slidably connectable to the first three dimensional contour for fixing the cap element to the housing element.16. The stator system according to claim 15 ,wherein the first three dimensional contour of the housing element comprises a guiding notch, andwherein the second three dimensional contour of the cap element comprises an edge section, andwherein the guiding notch is formed in such a way that the edge section of the cap element is slidably insertable into the guiding notch for fixing the cap element to the housing element.17. A stator system according to claim 16 ,{'b': '103', 'wherein the edge section of the cap element () comprises a wedge profile,'}wherein the guiding notch comprises a V-shaped ...

WELDED MANIFOLD FOR A STATOR HOUSING SEGMENT

A stator system for an electric machine, in particular a generator of a wind turbine is disclosed. The stator system includes a stator housing segment, a plate, supply system and a manifold segment. The stator housing segment includes a cooling channel which includes an opening at an axial front face of the stator housing segment. The plate is mounted to the axial front face for reinforcing the stator housing segment. The supply system is adapted for supplying cooling fluid to the cooling channel. The manifold segment is welded to the plate for forming a guide channel for the cooling fluid between the manifold segment and the plate. The plate includes a through-hole for generating a connection between the opening of the cooling channel and the guide channel. The supply system is connected to the guide channel. 111-. (canceled)12. Stator system of a generator of a wind turbine , the stator system comprisinga stator housing segment with a cooling channel which comprises an opening at an axial front face of the stator housing segment;a plate mounted to the axial front face is configured to reinforced the stator housing segment;a supply system is configured to supply cooling fluid to the cooling channel; anda manifold segment welded to the plate is configured to form a guide channel for the cooling fluid between the manifold segment and the plate,wherein the plate comprises a through-hole for generating a connection between the opening of the cooling channel and the guide channel, andwherein the supply system is connected to the guide channel.13. A stator system according to claim 12 , further comprisinga cooling pipe inserted in the cooling channel and the through-hole of the plate.14. A stator system according to claim 13 ,wherein the cooling pipe comprises a pipe opening in the guide channel, andwherein the cooling pipe further comprises a flaring at the pipe opening for generating a sealed connection between the cooling channel and the guide channel.15. A stator ...

Method for manufacturing of magnet poles

A method for manufacturing sintered magnet poles is described. The mould is filled with a vitrifiable base material powder and closed with a plate. A magnetic field aligns the powder and a plate pressed onto the powder establishes a compact that holds the alignment in place. The compact is sintered to form a sintered magnet pole. The mould forms a protective cover of the sintered magnet pole and the plate forms a base plate of a magnet pole piece. Furthermore, a magnet pole piece is provided which has a magnet pole and a base plate which is fixed to a protective cover so that the base plate and the protective cover surround the magnet pole. The base plate and/or the protective cover of the magnet pole piece has at least one element that provides a geometrical locking of the magnet pole to the base plate and/or the protective cover. 1. A method for manufacturing sintered magnet poles , comprising:providing a mould having a first opening;filling a vitrifiable randomly oriented base material powder into the mould through the first opening;closing the first opening with a plate;placing the mould with the randomly oriented powder into a magnetic field to align the randomly oriented powder into aligned powder;pressing the plate onto the aligned powder to establish a compact that holds the alignment of the aligned powder in place;sintering the compact while the compact is oriented over the plate inside the mould to form a sintered magnet pole that adheres to the plate as a result of the sintering process, wherein a gap is formed between the sintered magnet pole and the mould due to shrinkage of the compact during sintering; andusing the protective cover and base plate as part of the final product,wherein the mould ultimately forms a protective cover of the sintered magnet pole and the plate ultimately forms a base plate of a magnet pole piece.2. The method as claimed in claim 1 ,wherein the sintering is performed by heating in vacuum.3. The method as claimed in claim 1 , ...

Stator element for an electrical machine

A stator element for an electrical machine is disclosed. The stator element includes a yoke having at least two adjacently disposed axially extending slots for accommodating at least one stator winding, the stator winding being built of a number of strands stacked on top of each other in radial direction, with each stator winding comprising end windings axially extending off the yoke, wherein the strands of the respective stator winding differ in their axial lengths with at least one end winding of a respective stator winding having a bevelled or curved shape. 1. A stator element of a generator , comprising:a yoke including at least two adjacently disposed axially extending slots configured to accommodate at least one stator winding,wherein each stator winding being built of a plurality of strands stacked on top of each other in radial direction,wherein each stator winding comprising end windings axially extending off the yoke, andwherein the strands for the respective stator differ in axial lengths with at least one end winding of the respective stator winding having a bevelled.2. The stator element according to claim 1 ,comprising a plurality of stator windings, wherein the end windings of the respective stator windings are differently shaped.3. The stator element according to claim 1 ,wherein the axial lengths of the strands of a respective stator winding decrease in a radially outward direction.4. The stator element according to claim 1 ,wherein the axial lengths of the strands of a respective stator winding decrease in a radially inward direction.5. The stator element according to claim 1 ,wherein the end windings of a stator winding are tilted in radially outward or inward direction.6. The stator element according to claim 4 , comprising:three stator windings,wherein the end windings of a first stator winding are not tilted or tilted in radially outward direction, andwherein the end windings of the second and third stator winding are tilted in radial inward ...

System to store and to transmit electrical power

A system to store and to transmit electrical power includes at least one storage system, at least one bidirectional converter, and at least one load coupled to a network, wherein the load is adapted to both, receive electrical power from the network and supply electrical power to the network. A first storage system is used to store electrical power of a power source. The first storage system is connected to a first bidirectional converter by a DC power transmission system. The first bidirectional converter is connected to an AC network and the AC network is connected to a first load. 115-. (canceled)16. A system to store and to transmit electrical power , comprisingat least one storage system comprising a central storage system,at least one bidirectional converter comprising a first bidirectional converter,at least one load coupled to an AC network and adapted to both, receive electrical power from the AC network and supply electrical power to the AC network, wherein the at least one load comprises a first load,wherein the central storage system is used to store electrical power of a power source,wherein the central storage system is connected to the first bidirectional converter by a DC power transmission system,wherein the first bidirectional converter is connected to the AC network, andwherein the AC network is connected to the first load.17. The system according to claim 16 ,wherein the at least one bidirectional converter comprises a second bidirectional converter and the at least one load comprises a second load,wherein the central storage system is further connected to the second bidirectional converter by the DC power transmission system,wherein the second bidirectional converter is connected to the AC network,wherein the AC network is connected to the second load, andwherein the AC network comprises a switch being used either to couple the first bidirectional converter and the first load to the second bidirectional converter and the second load or to ...

DIRECT PRODUCTION OF A NEGATIVE MOLD FOR PRODUCING WIND TURBINE BLADES

A method for producing a negative mold for casting a wind turbine blade is provided. The described method comprises directly producing the negative mold based on three dimensional data of the negative mold, wherein for producing the negative mold a milling machine is used. It is further described a manufacturing method for a wind turbine blade by means of the described negative mold. Further, it is described such a negative mold and a wind turbine blade, which has been produced with such a negative mold. 115-. (canceled)16. A method for producing a negative mold for casting a wind turbine blade , the method comprising:directly producing the negative mold based on three dimensional data of the negative mold,wherein for producing the negative mold a milling machine is used.17. The method as set forth in claim 16 ,wherein at least one inner surface of the negative mold is formed by the milling machine.18. The method as set forth in claim 16 ,wherein at least one inner surface of the negative mold is formed by a pouring process and/or by a spraying process.19. The method as set forth in claim 16 ,wherein the negative mold is made out of a material, which is dimensionally stable up to a temperature of at least 100° C.20. The method as set forth in claim 19 ,wherein the negative mold is made out of a material, which is dimensionally stable up to a temperature of at least 120° C. and in particular up to a temperature of at least 140° C.21. The method as set forth in claim 20 ,wherein the negative mold is made out of a material, which is dimensionally stable up to a temperature of at least 140° C.22. The method as set forth in claim 19 ,wherein the material comprises at least one of substances selected from the group consisting of a pourable epoxy foam, a polyurethane foam, a glass foam, a high temperature resin, and a thermoplastic material.23. A manufacturing method for a wind turbine blade claim 19 , the manufacturing method comprising:{'claim-ref': {'@idref': 'CLM-00016 ...

Wind turbine with a generator

A wind turbine with a generator includes a rotor with permanent magnets and a stator with stator coils mounted on a stator support structure. The stator support structure includes a base structure on which circular connection structures are mounted with their inner perimeter, whereby a stator base structure is connected to the outer perimeter of the circular connection structures. 1. A wind turbine with a generator , comprising:a rotor with permanent magnets;a stator with stator coils mounted on the stator support structure,a stator support structure comprising a support base structure and a plurality of circular connection structures which are mounted via their inner perimeter to the support base structure and via their outer perimeter to a stator base structure.2. The wind turbine according to claim 1 ,wherein the support base structure comprises radially protruding flanges on which the connection structures are mounted.3. The wind turbine according to claim 2 ,wherein the support base structure comprises at least two flanges for connecting circular connection structures.4. The wind turbine according to claim 2 ,wherein the support base structure comprises further connection flanges at axial ends of the support base structure for connecting to a hub or a bearing assembly.5. The wind turbine according to claim 1 ,wherein the circular connection structures are connected to the support base structure and/or the stator base structure by bolted connections.6. The wind turbine according to claim 1 ,wherein the circular connection structures are connected to the support base structure and/or the stator base structure by welding.7. The wind turbine according to claim 1 ,wherein the support base structure, the circular connection structures and the stator base structure form a hollow chamber.8. The wind turbine according to claim 7 ,wherein the hollow chamber is ventilated. This application claims priority of European Patent Office application No. 11156047.0 EP filed Feb. ...

JACKET ASSEMBLY GUIDE

A jacket assembly guide for assembling a jacket structure is provided. The jacket structure includes a plurality of legs, a plurality of connecting braces and a plurality of node elements arranged on the legs for connecting the braces to the legs. The assembly guide includes a plurality of supporting towers for supporting the plurality of legs such that a supported leg is held in a position corresponding to the position of that leg in the assembled state of the jacket structure. The assembly guide further includes a plurality of connecting devices for releasably connecting one of the legs to one of the supporting towers. 1. A jacket assembly guide for assembling a jacket structure , the jacket structure comprising a plurality of legs , a plurality of connecting braces and a plurality of node elements arranged on the legs for connecting the braces to the legs , the assembly guide comprising:a plurality of supporting towers for supporting the plurality of legs such that a supported leg is held in a position corresponding to the position of that leg in the assembled state of the jacket structure; anda plurality of connecting devices for releasably connecting one of the legs to one of the supporting towers.2. The jacket assembly guide according to claim 1 , further comprising an access device for providing connecting access to node elements and braces held between the node elements.3. The jacket assembly guide according to claim 1 , further comprising a supporting tower for each leg of the jacket structure.4. The jacket assembly guide according to claim 3 , wherein at least one of the connecting devices comprises a clamp.5. The jacket assembly guide according to claim 2 , wherein an access device comprises an access platform and/or an elevator.6. The jacket assembly guide according to claim 5 , wherein at least one of the supporting towers comprises an access platform and/or an elevator.7. The jacket assembly guide according to claim 6 , wherein an access platform is ...

METHOD OF ASSEMBLING A JACKET STRUCTURE

A jacket structure for supporting an offshore wind turbine a jacket assembly guide for assembling such a jacket structure and a method of assembling a jacket structure are described The jacket structure includes a plurality of legs, a plurality of connecting braces and a plurality of node elements arranged on the legs for connecting the braces to the legs. A node-to-leg connection is formed between each node element and a leg; and forming a brace-to-node connection between each brace and a node element. A node-to-leg connection and/or a brace-to-node connection include an adhesive joint. 1. A jacket structure for supporting an offshore wind turbine , comprising:a plurality of legs;a plurality of braces which at least interconnect a portion of the plurality of legs;a plurality of node elements, between each node element and one of the plurality of legs a node-to-leg connection is formed and between each brace and one of the plurality of node elements a brace-to-node connection is formed,wherein at least the node-to-leg connection or the brace-to-node connection comprises an adhesive joint.2. A jacket structure according to claim 1 ,wherein the adhesive joint includes a layer of adhesive between a node sleeve and a component enclosed by the sleeve, andwherein the adhesive includes an epoxy resin or grout.3. A jacket structure according to claim 2 , wherein the wall thickness of the sleeve decreases towards an outer edge of the sleeve.4. A jacket structure according to claim 3 ,wherein the sleeve includes at least two sleeve pieces, andwherein the sleeve pieces are joined by a bolted flange connection.5. A jacket assembly guide for assembling a jacket structure according to claim 1 , comprising:a plurality of supporting towers configured to support the plurality of legs such that a supported leg is held in a position corresponding to the position of that leg in the assembled state of the jacket structure; anda hose and pump arrangement that supplies an adhesive to the ...

Method and mould for moulding a wind turbine blade

A mould for moulding a wind turbine blade using a reinforcing material and a matrix material is provided. The mould includes a solid non-stick lining, and wherein the material properties of the non-stick lining are chosen to prevent a matrix material from bonding with the non-stick lining of the mould. A method of moulding a wind turbine blade in a mould is also provided. The method includes applying a solid non-stick lining to an inside surface of the mould, assembling a reinforcement material lay-up for the wind turbine blade on the non-stick lining, distributing a matrix material through layers of the reinforcement material lay-up, performing curing steps to harden the matrix material, and subsequently removing the cured wind turbine blade from the mould.

Method of attaching a magnet to a rotor or a stator of an electrical machine

A method of attaching a magnet to a rotor or a stator of an electrical machine is provided. The method includes arranging a magnet along a surface of the rotor or stator; arranging a pair of retainers, one on each side of the magnet; enclosing the rotor or stator, magnet and retainers in a vacuum bag; and performing vacuum evacuation to consolidate the magnet to the retainers by means of adhesive. A magnet mounting arrangement for a rotor or a stator of an electrical machine and a wind turbine with a generator including a rotor and a stator and such a magnet mounting arrangement are also provided. 115-. (canceled)16. A method of attaching a magnet to a rotor or a stator of an electrical machine , comprising:arranging a magnet along a surface of the rotor or stator;arranging a pair of retainers one on each side of the magnet;enclosing the rotor or stator, magnet and retainers in a vacuum bag; andperforming vacuum evacuation to consolidate the magnet to the retainers by means of an adhesive.17. The method according to claim 16 , wherein a retainer is shaped to essentially cover a side face and at least part of the upper face of the magnet.18. The method according to claim 16 , wherein the pair of retainers are dimensioned to overlap on the upper face of the magnet.19. The method according to claim 16 , wherein each retainer is shaped to partially lie on the surface of the rotor or stator.20. The method according to claim 16 ,wherein a plurality of magnets are attached to the rotor or stator, andwherein the method further comprises placing an insert between adjacent magnets prior to the vacuum evacuation.21. The method according to claim 16 , further comprising applying an adhesive between the magnet and the retainers.22. The method according to claim 16 , further comprising applying an adhesive between the magnet and the rotor or stator.23. The method according to claim 16 ,wherein the vacuum evacuation step comprises a vacuum-assisted resin transfer in which an ...

DOUBLE ROW TAPERED BEARING ASSEMBLY AND WIND TURBINE

A double row tapered bearing assembly includes a first portion and a second portion. The first portion includes a first ring and a second ring. The first ring is connected with the second portion via at least one row of tapered rollers or balls. The second ring is also connected with the second portion via at least one row of tapered rollers or balls. The first ring and the second ring each includes at least one groove. The at least one groove in the first ring faces the at least one groove in the second ring to form a cavity. At least one member is placed in the cavity.

HEATING MATS ARRANGED IN A LOOP ON A BLADE

A wind turbine blade is disclosed. The blade includes a heating mat for generating heat. The heating mat is mounted at an outer surface of the blade. The heating mat includes a first section with a first end section and a second section with a second end section. The first end section and the second end section are electrically connectable to a respective power terminal for supplying power to the heating mat. The second end section defines an opposite end section of the heating mat in a longitudinal direction of the heating mat with respect to the first end section. The first section and the second section run along the surface of the blade in one or more loops from the first end section to the second end section. 115-. (canceled)16. A blade for a wind turbine , the blade comprising:a heating mat for generating heat is mounted at an outer surface of the blade, the heating mat comprising a first section with a first end section and a second section with a second end section, the first end section and the second end section are electrically connectable to a respective power terminal for supplying power to the heating mat,wherein the second end section defines an opposite end section of the heating mat in a longitudinal direction of the heating mat with respect to the first end section, andwherein the first section and the second section run along the surface of the blade in at least one loop from the first end section to the second end section.17. The blade according to claim 16 , further comprising:a power transmitting section located on the outer surface of the blade, the power transmitting section comprising the power terminals for supplying power to the heating mat,wherein the first end section and the second end section are located inside the power transmitting section and are electrically connected to the power terminals, andwherein the first section runs from the first end section to a region being located outside of the power transmitting section and the ...

Electric generator

Electric generator is disclosed having a stator and a rotor. The rotor being rotatable around a centre axis and relatively to the stator and the stator includes a number of stator windings extending in freely exposed end windings. The stator and/or the rotor is provided with at least one barrier means which barrier means axially extends to such a manner that at least the end windings of the stator are at least partially covered. 114-. (canceled)15. A generator for an electrical machine , comprising:a stator comprising a plurality of stator windings extending in freely exposed end windings; anda rotor being rotatable around a centre axis and relative to the stator and the stator,wherein the at least the stator or the rotor is provided with a barrier means which axially extends to such a manner that at least the end windings of the stator are at least partially covered.16. The generator according to claim 15 ,wherein the stator and the rotor comprise separate barrier means axially extending towards each other.17. The generator according to claim 16 ,wherein the barrier means are disposed at radially different or similar positions.18. The generator according to claim 16 ,wherein the barrier means differ in their lengths or have the same length.19. The generator according to claim 17 ,wherein the barrier means are disposed at radially similar positions, andwherein a small gap is built between the free endings of the barrier means.20. The generator according to claim 17 ,wherein the barrier means are overlapping.21. The generator according to claim 15 ,wherein the barrier means projects from a radially extending end plate of the stator and the rotor.22. The generator according to claim 15 ,wherein the barrier means projects from a radially extending end plate of the rotor.23. The generator according to claim 15 ,wherein the barrier means projects from a radially extending end plate of the stator.24. The generator according to claim 21 ,wherein the barrier means extends ...

Arrangement and Method to Prevent a Collision of a Flying Animal with a Wind Turbine

An arrangement and method to prevent a collision of a flying animal with a wind turbine is provided. A camera-system is arranged at the wind turbine and the camera-system generate images of the environment of the wind turbine. An evaluation system is coupled with the camera-system and the evaluation system evaluates the images to detect a flying animal within the environment of the wind turbine. A warning system is coupled with the evaluation system and the warning system generates a warning signal if the flying animal is detected by the evaluation system. The camera-system is configured to generate at least panoramic images of the wind turbine environment for the evaluation. 1. An arrangement to prevent a collision of a flying animal with a wind turbine , comprising:a camera-system, which is arranged at the wind turbine, generates a plurality of images of the environment of the wind turbine, the plurality of images includes a panoramic image of the wind turbine environment;an evaluation system, which is coupled with the camera-system, evaluates the images to detect a flying animal within the environment of the wind turbine; anda warning system, which is coupled with the evaluation system, generates a warning signal when the flying animal is detected by the evaluation system.2. The arrangement according to claim 1 , a first camera configured to generate the panoramic images of the wind turbine environment, and', 'a second camera configured to generate images of a section of the wind turbine environment,, 'wherein the camera-system compriseswherein the first camera and the second camera are spaced vertically, andwherein the panoramic images and section-images are evaluated by the evaluation system to identify the flying animal.3. The arrangement according to claim 1 , a first camera configured to generate panoramic images of the wind turbine environment, and', 'a second camera configured to generate panoramic images of the wind turbine environment,, 'wherein the ...

Energy handling system comprising an energy storage device with a phase change material

Disclosed is an energy handling system including an energy storage device, which includes a Phase Change Material for absorbing and temporarily storing thermal energy, which has been provided by an energy source, and a heat extraction element for extracting thermal energy from the Phase Change Material. The energy handling system further includes an energy conversion device, which is operatively connected to the heat extraction element and which is capable of converting thermal energy into electric energy. 115-. (canceled)16. An energy handling system , comprising a Phase Change Material that absorbs and temporarily stores thermal energy, which has been provided by an energy source,', 'a heat extraction element extracts thermal energy from the Phase Change Material, and', 'an energy conversion device operatively connected to the heat extraction element and converts the thermal energy into electric energy., 'an energy storage device comprising17. The energy handling system as set forth in claim 16 , a heat engine operatively connected to the heat extraction element and configured for converting thermal energy into mechanical energy, and', 'an electrical generator operatively connected to the heat engine and configured for converting mechanical energy into electrical energy and for supplying the electrical energy to a utility grid., 'wherein the energy conversion device comprises18. The energy handling system as set forth in claim 17 , further comprising:a thermal energy transfer line, which connects the heat engine with the heat extraction element and with at least one thermal power generation plant.19. The energy handling system as set forth in claim 18 ,wherein the heat engine is a heat engine of a thermal power generation plant.20. The energy handling system as set forth in claim 19 ,wherein the energy storage device is a component being assigned to a thermal power generation plant.21. The energy handling system as set forth in claim 19 ,wherein the thermal power ...

JACKET STRUCTURE FOR OFFSHORE CONSTRUCTIONS

Jacket structure for offshore constructions, particularly jacket structure for offshore wind turbines, including a number of first and second profiles, whereby the first profiles include rods in axial alignment and the second profiles include rods in an angled alignment relative to the first profiles, and a number of node members providing a connection site for the second profiles, wherein the node members are connected to the first profiles and/or at least one adapter profile connected to at least one first profile of the jacket structure via a bolted connection. 113-. (canceled)14. A node arrangement for a jacket structure having a first profile and a second profile , comprising:a node member adapted to be connected via a bolted connection to the first profile of the jacket and/or to an adapter profile of the jacket, the node member further adapted to provide a connection site for a second profile of the jacket.15. The node arrangement according to claim 14 ,wherein the node member comprises a base plate, andwherein a connecting member extends off the base plate to provide the connections site for the second profile16. The node arrangement according to claim 15 ,wherein the base plate comprises a connecting portion for the bolted connection to the first profile and/or adapter profile.17. The node arrangement according to claim 16 ,wherein the connecting portion comprises a plurality of bores, andwherein each bore is adapted to accommodate a bolt.18. The node arrangement according to claim 17 ,wherein the bores are circumferentially disposed at the boarders of the base plate.19. The node arrangement according to claim 14 ,wherein an additional connecting member extends off the connecting member.20. A jacket structure for offshore wind turbines claim 14 , comprising:a first profile shaped as a rod in axial alignment;a second profile shaped as a rod in an angled alignment relative to the first profile; and{'claim-ref': {'@idref': 'CLM-00014', 'claim 14'}, 'the node ...

JACKET STRUCTURE FOR OFFSHORE CONSTRUCTIONS

A jacket structure for offshore constructions, particularly for offshore wind turbines, includes a number of first and second profiles, whereby the first profiles have rods in axial alignment and the second profiles have rods in an angled alignment relative to the first profiles. A number of node members are provided, whereby a connection of aligned profiles and/or aligned profiles and node members is established by connecting means with at least two fastening points and at least one elongate tension element extending between the fastening points. The at least one elongate tension element at least partially penetrates through the respective aligned profiles and/or aligned profiles and node members. 112.-. (canceled)13. Jacket structure for offshore constructions , comprising:a plurality of first profiles and second profiles, wherein the first profiles comprise rods in axial alignment and wherein the second profiles comprise rods in an angled alignment relative to the first profiles, anda plurality of node members, at least two fastening points and', 'at least one elongate tension element extending between the fastening points,, 'wherein connections of aligned profiles and/or connections of aligned profiles and node members is established by connecting means comprising'}wherein the at least one elongate tension element at least partially penetrates through the aligned profiles and/or aligned profiles and node members in order to be connected.14. The jacket structure according to claim 13 , wherein the at least one tension element extends in an axial direction between adjacently disposed first profiles and/or node members and/or a grounding pile being anchored to the ground.15. The jacket structure according to claim 13 , wherein the at least one tension element extends in an angled direction relative to the first profiles between adjacently disposed second profiles and/or node members.16. The jacket structure according to claim 14 , the first profiles and/or', 'the ...

Modification of a spatial temperature profile along a heat exchanging arrangement of a thermal energy storage and recovery device

A thermal energy storage and recovery device is disclosed which includes (a) an arrangement having first and second ends, the arrangement is configured for guiding a flow of heat transfer fluid between the first second ends, (b) a heat storage material thermally coupled to the arrangement such that along a physical extension of the arrangement a thermal interaction region is formed for thermally coupling the heat transfer fluid with the heat storage material, (c) a fluid terminal connected to the arrangement via a branch duct of the arrangement, the branch duct is located between the first and second ends, and (d) a control device coupled to the fluid terminal and configured that a flow of fluid through the fluid terminal is controllable such that within the arrangement a spatial temperature profile along at least a portion of the thermal interaction region is adjustable. A method and system are also described. 1. A thermal energy storage and recovery device , comprisinga heat exchanging arrangement having a first end and a second end, wherein the heat exchanging arrangement is configured for guiding a flow of a heat transfer fluid between the first end and the second end,a heat storage material which is thermally coupled to the heat exchanging arrangement in such a manner that along a physical extension of the heat exchanging arrangement a thermal interaction region is formed for thermally coupling the heat transfer fluid with the heat storage material,a fluid terminal, which is connected to the heat exchanging arrangement via a branch duct of the heat exchanging arrangement, wherein the branch duct is located between the first end and the second end, anda control device, which is coupled to the fluid terminal and which is configured such that a flow of fluid through the fluid terminal is controllable in such a manner that within the heat exchanging arrangement a spatial temperature profile along at least a portion of the thermal interaction region is adjustable.2. ...

METHOD TO ROTATE THE ROTOR OF A WIND TURBINE AND MEANS TO USE IN THIS METHOD

A direct driven wind turbine includes an electrical generator with a rotor and a stator, a hub constructed to receive a rotor blade, and an actuator device. The hub is connected to the rotor of the electrical generator. The hub and the rotor of the electrical generator are rotatable mounted in respect to the stator of the generator. The actuator device is constructed and arranged to rotate the rotor of the electrical generator and the hub of the wind turbine in respect to the stator of the electrical generator, wherein the actuator device is at least one motor. 1. A direct driven wind turbine , comprising:an electrical generator having a rotor and a stator,a hub constructed to receive a rotor blade,and an actuator device,wherein the hub is connected to the rotor of the electrical generator,wherein the hub and the rotor of the electrical generator are rotatable mounted with respect to the stator of the generator,wherein the actuator device is constructed and arranged to rotate the rotor of the electrical generator and the hub of the wind turbine in respect to the stator of the electrical generator, andwherein the actuator device includes at least one motor.2. The direct driven wind turbine according to claim 1 , wherein the motor is attached to the stator of the electrical generator or to a support structure carrying the stator of the electrical generator.3. The direct driven wind turbine according to claim 1 , wherein the motor is operable to act on the rotor of the electrical generator to rotate the rotor of the electrical generator and the hub.4. The direct driven wind turbine according to claim 1 , wherein the electrical generator comprises a brake-disc claim 1 , which is attached to the rotor of the electrical generator and is prepared to be used to brake the rotation of the rotor claim 1 , and wherein the motor is operable to act on the brake-disc of the electrical generator.5. The direct driven wind turbine according to claim 4 , wherein the brake-disc ...

Nacelle shell structure, lock labyrinth and wind turbine

A nacelle shell structure which is attachable to a main structure of a wind turbine is described. The nacelle shell structure is attachable to the main structure such that the nacelle shell structure is carried by the main structure at only three static points. Moreover, a nacelle shell structure is provided which is attachable to a main structure of a wind turbine. The nacelle shell structure includes interconnected shell sub-structures. Furthermore, a lock-labyrinth for positioning between a rotating part with a rotation axis and stationary part of a wind turbine is disclosed, which includes a shield structure and a support structure, the shield structure being located radially outward of the support structure and protruding the support structure in axial direction. The shield structure includes a nose protruding radially inward and being located at an axial position where the support structure fauns a water-tight channel which opens towards the nose.

TOWER CONSTRUCTION

A tower construction for a wind turbine is proposed. The tower construction has a number of axially disposed hollow cylindrical tower sections. Each of the axially disposed hollow cylindrical tower sections has a number of circumferentially disposed first tower section segments and a number of circumferentially disposed second tower section segments. The first tower section segments and the second tower section segments are alternated with each other. 115.-. (canceled)16. A tower construction for a wind turbine , comprising:a plurality of axially disposed hollow cylindrical tower sections,wherein each of the tower sections comprises a plurality of circumferentially disposed alternating first and second tower section segments.17. The tower construction according to claim 16 , wherein the each of the tower sections comprises overlapping portions of the respective alternating first and second tower section segments in a circumferential direction claim 16 , and wherein sizes of the overlapping portions increase in an axial direction.18. The tower construction according to claim 17 , wherein the overlapping portions are fixed to each other by connecting device.19. The tower construction according to claim 18 , wherein the connecting device comprises bolted joints and/or welded joints.20. The tower construction according to claim 16 , wherein the first and the second tower section segments comprise a rectangular shape respectively.21. The tower construction according to claim 16 , wherein the first and the second tower section segments comprise same heights and different widths.22. The tower construction according to claim 16 , wherein the first tower section segments comprise widths that are constant throughout the each of the tower sections claim 16 , and wherein the second tower section segments comprise widths that decrease throughout the each of the tower sections.23. The tower construction according to claim 16 , wherein one of the first tower section segments is ...

THERMAL ENERGY STORAGE AND RECOVERY WITH A HEAT EXCHANGER ARRANGEMENT HAVING AN EXTENDED THERMAL INTERACTION REGION

A thermal energy storage and recovery device includes a heat exchanger arrangement for guiding a flow of a heat transfer medium between first and second ends thereof, and a heat storage material surrounding it, forming thermal interaction region between the heat transfer medium and the heat storage material. The heat exchanger arrangement transports the heat transfer medium from the first end to the second end when the heat storage material receives thermal energy from the heat transfer medium, and transports the heat transfer medium from the second end to the first end when the heat storage material releases thermal energy to the heat transfer medium. A controller operates the device such that that when storing or recovering thermal energy to or from the heat transfer medium within the device there exists a region where the inlet and outlet temperature of the heat transfer medium of this region is kept constant. 117-. (canceled)18. A thermal energy storage and recovery device , comprising:a heat exchanger arrangement, which is configured for guiding a flow of a heat transfer medium between a first end of the heat exchanger arrangement and a second end of the heat exchanger arrangement,a heat storage material, which surrounds the heat exchanger arrangement in such a manner that a thermal interaction region is formed for thermally coupling the heat transfer medium with the heat storage material, anda control unit for controlling the operation of the thermal energy storage and recovery device, transport the heat transfer medium from the first end to the second end, if the thermal energy storage and recovery device is in a first operational mode, in which the heat storage material is supposed to receive thermal energy from the heat transfer medium, and', 'transport the heat transfer medium from the second end to the first end, if the thermal energy storage and recovery device is in a second operational mode, in which the heat storage material is supposed to release ...

Storage and recovery of thermal energy based on counter current principle of heat transfer medium transportation

A thermal energy storage device is provided. The device has a heat exchanger arrangement for guiding a flow of a heat transfer medium between a first end and a second end of the heat exchanger arrangement, and a heat storage material surrounding the heat exchanger arrangement. The heat exchanger arrangement transports the heat transfer medium from the first end to the second end if the thermal energy storage device is in a first operational mode, in which the heat storage material is supposed to receive thermal energy from the heat transfer medium, and transports the heat transfer medium from the second end to the first end if the thermal energy storage device is in a second operational mode, in which the heat storage material is supposed to release thermal energy to the heat transfer medium.

THERMAL ENERGY STORAGE AND RECOVERY DEVICE AND SYSTEM HAVING A HEAT EXCHANGER ARRANGEMENT USING A COMPRESSED GAS

A thermal energy storage and recovery device is disclosed which includes a heat exchanger arrangement configured for guiding a flow of a heat transfer medium between a first end and a second end, and a heat storage material surrounding the heat exchanger arrangement so that a thermal interaction region is formed for thermally coupling the heat transfer medium with the heat storage material. The heat exchanger arrangement is sealed against the heat storage material so that, when in a first operational mode, in which the heat storage material is supposed to receive thermal energy from the heat transfer medium, a compressed gas is usable as the heat transfer medium for transferring thermal energy from the heat transfer medium to the heat storage material. 1. A thermal energy storage and recovery device comprising:a heat exchanger arrangement, which is configured for guiding a flow of a heat transfer medium between a first end of the heat exchanger arrangement and a second end of the heat exchanger arrangement, anda heat storage material, which surrounds the heat exchanger arrangement in such a manner that a thermal interaction region is formed for thermally coupling the heat transfer medium with the heat storage material,wherein the heat exchanger arrangement is sealed against the heat storage material in such a manner that, when the thermal energy storage and recovery device is in a first operational mode, in which the heat storage material is to receive thermal energy from the heat transfer medium, compressed gas, which has been heated up by a gas compression, is usable as the heat transfer medium for transferring thermal energy from the heat transfer medium to the heat storage material.2. The thermal energy storage and recovery device as set forth in claim 1 , (a) transport the heat transfer medium from the first end to the second end, when the thermal energy storage and recovery device is in the first operational mode, and', '(b) transport the heat transfer medium ...

THERMAL ENERGY STORAGE AND RECOVERY SYSTEM COMPRISING A STORAGE ARRANGEMENT AND A CHARGING/DISCHARGING ARRANGEMENT BEING CONNECTED VIA A HEAT EXCHANGER

A thermal energy storage and recovery system including a storage arrangement having a thermal energy storage device for temporarily storing thermal energy, a charging/discharging arrangement having a fluid energy machine for exchanging mechanical work with a working fluid cycling through the charging/discharging arrangement, and a heat exchanger which is arranged between the storage arrangement and the charging/discharging arrangement and which thermodynamically couples a heat transfer fluid cycling through the storage arrangement with the working fluid is provided. The storage arrangement is configured in such a manner that the heat transfer fluid is under a first pressure and the charging/discharging arrangement is configured in such a manner that the working fluid is at least partially under a second pressure, wherein the second pressure is higher than the first pressure. 1. A thermal energy storage and recovery system comprisinga storage arrangement having a thermal energy storage device for temporarily storing thermal energy;a charging/discharging arrangement having a fluid energy machine for exchanging mechanical work with a working fluid cycling through the charging/discharging arrangement; anda heat exchanger arranged between the storage arrangement and the charging/discharging arrangement and thermodynamically couples a heat transfer fluid cycling through the storage arrangement with the working fluid,wherein the storage arrangement is configured in such a manner that the heat transfer fluid is under a first pressure,wherein the charging/discharging arrangement is configured in such a manner that the working fluid is under a second pressure, andwherein the second pressure is higher than the first pressure.2. The thermal energy storage and recovery system as claimed in claim 1 , wherein the first pressure is an ambient pressure of the thermal energy storage and recovery system.3. The thermal energy storage and recovery system as claimed in claim 1 , wherein ...

JACKET STRUCTURE FOR OFFSHORE CONSTRUCTIONS

Jacket structure for offshore constructions, particularly jacket structure for an offshore wind turbine is disclosed. The jacket structure includes a number of profiles in axial or angled alignment and a number of connecting members. A connection of the profiles and/or the connecting members is established by means of a bolted-connection. 115-. (canceled)16. A jacket structure for offshore wind turbine , comprising:a plurality of profiles in axial or angled alignment and a plurality of connecting members;whereby a connection of the profiles and/or the connecting members is established by means of a bolted-connection.17. The jacket structure according to claim 16 ,wherein a profile is connected to at least one further profile and/or at least one connecting member.18. The jacket structure according to claim 16 ,wherein a connecting member is connected to at least one profile in axial alignment and/or at least one further profile in an angled alignment and/or at least one further connecting member.19. The jacket structure according to claim 16 ,wherein each profile and each connecting member comprises at least one connecting portion for connecting with at least one further profile and/or connecting member.20. The jacket structure according to claim 19 ,wherein the connecting portion is provided at respective free endings of the profiles and the connecting members.21. The jacket structure according to claim 20 ,wherein the free endings of the profile are disposed in axial alignment and the free endings of the connecting member are disposed in axial and angled alignment.22. The jacket structure according to claim 19 ,wherein the free endings of the profile are disposed in axial alignment and the free endings of the connecting member are disposed in axial and angled alignment.23. The jacket structure according to claim 19 ,wherein the bolted-connection is provided by bolts at least penetrating through at least two adjacently disposed connecting portions of the profiles ...

METHOD OF MANUFACTURING A TURBINE BLADE, SYSTEM FOR MANUFACTURING A TURBINE BLADE, INTERMEDIATE MEMBER FOR MANUFACTURING A TURBINE BLADE, AND TURBINE BLADE MANUFACTURED BY MEANS OF THE AFOREMENTIONED METHOD

A method of manufacturing a turbine blade is provided. The described method includes providing an elongate core, surrounding the elongate core with a textile structure, arranging the elongate core surrounded by the textile structure in a mold, pressing at least a part of the textile structure against the mold, and injecting a curing agent into the mold to interact with the textile structure, thereby forming the turbine blade. Also, a system and an intermediate member for manufacturing a turbine blade by means of the described method is provided. 1. A method of manufacturing a turbine blade , comprising:providing an elongate core;surrounding the elongate core with a textile structure;arranging the elongate core surrounded by the textile structure in a mold;pressing at least a part of the textile structure against the mold; andinjecting a curing agent into the mold to interact with the textile structure, thereby forming the turbine blade.2. The method as set forth in claim 1 , wherein the textile structure is woven around the elongate core by means of a 3D weaving process.3. The method as set forth in claim 1 , wherein the textile structure is formed by wrapping a textile sheet around the elongate core.4. The method as set forth in claim 1 , wherein the textile structure is cylindrical.5. The method as set forth in claim 4 , wherein the textile structure comprises a plurality of layers claim 4 , the plurality of layers comprising an inner layer and an outer layer which surrounds the inner layer.6. The method as set forth in claim 5 , wherein each of the plurality of layers comprises a specific textile material or a spacer material.7. The method as set forth in claim 5 , wherein the composition of material for at least one of the plurality of layers is varied along the longitudinal axis and/or the circumference of the substantially cylindrical structure.8. The method as set forth in claim 5 , wherein the textile structure is integrally formed.9. The method as set forth ...

Method to rotate the rotor of a wind turbine and means to use in this method

A direct driven wind turbine includes an electrical generator with a rotor and a stator, a hub for receiving a rotor blade, and actuator device. The hub is connected to the rotor of the electrical generator, and the hub and the rotor of the electrical generator are rotatable mounted in respect to the stator of the generator. The actuator device is constructed and arranged to rotate the hub of the wind turbine in respect to the stator of the electrical generator. The actuator device is the electrical generator, wherein the electrical generator of the wind turbine is used as a motor to rotate the hub of the wind turbine. 1. Direct driven wind turbine , comprising:an electrical generator with a rotor and a stator, a hub constructed to receive a rotor blade, and actuator means,wherein the hub is connected to the rotor of the electrical generator,wherein the hub and the rotor of the electrical generator are rotatable mounted in respect to the stator of the generator,wherein the actuator means are constructed and arranged to rotate the hub of the wind turbine in respect to the stator of the electrical generator,wherein the actuator means is the electrical generator, andwherein the electrical generator of the wind turbine is used as a motor to rotate the hub of the wind turbine.2. Direct driven wind turbine according to claim 1 , wherein the electrical generator comprises an electrical connection that is connected to a power source to operate the electrical generator as a motor.3. Direct driven wind turbine according to claim 2 , wherein a controller is connected to the power source to control the operation of the electrical generator as a motor.4. Direct driven wind turbine according to claim 3 , wherein the controller is the controller of the wind turbine.5. Direct driven wind turbine according to claim 3 , wherein the controller is a controller separate from the turbine controller.6. Direct driven wind turbine according to claim 2 , wherein the power source comprises ...

MAGNET COMPONENT WITH A THERMAL INSULATION STRUCTURE, ROTOR ASSEMBLY WITH SUCH A MAGNET COMPONENT, ELECTROMECHANICAL TRANSDUCER AND WIND TURBINE

A magnet assembly for a rotor assembly of an electromechanical transducer includes a magnet component and a thermal insulating structure. The magnet component has a permanent magnet material. The thermal insulation structure covers at least a part of a surface of the magnet component for thermally decoupling the magnet component from heat being generated within electromechanical transducer. In an example embodiment, the electromechanical transducer is a generator of a wind turbine. 1. A magnet assembly for a rotor assembly of an electromechanical transducer , the magnet assembly comprising:a magnet component comprising a permanent magnet material, anda thermal insulation structure covering at least a part of a surface of the magnet component for thermally decoupling the magnet component from heat being generated within electromechanical transducer.2. The magnet assembly according to claim 1 , further comprising 'a back surface for mounting the magnet assembly to a support structure of the rotor assembly.', 'a front surface being attached to the magnet component surface, and'}, 'a base element, comprising3. The magnet assembly according to claim 1 , wherein the thermal insulating structure comprises a thermal insulating material.4. The magnet assembly according to claim 3 , wherein the thermal insulating structure comprises a sandwich structure of at least one layer of a thermal insulating material and at least one layer of a thermal radiation reflecting material.5. The magnet assembly according to claim 3 , wherein the thermal insulating material is a porous material.6. The magnet assembly according to claim 5 , wherein the thermal insulating material comprises at least one of the group consisting of polyurethane foam claim 5 , phenol foam claim 5 , aerogel claim 5 , mineral wool claim 5 , glass wool claim 5 , silica lime sand brick and clay.7. The magnet assembly according to claim 1 , wherein the thermal insulation structure comprises an enclosure structure ...

ARRANGEMENT AND METHOD TO ROTATE THE HUB OF A WIND TURBINE

An arrangement and a method of rotating a hub of a wind turbine are provided. A wind turbine includes a hub mounted to a nacelle, whereby the hub is rotatable around an axis of rotation in respect to the nacelle. A rotor blade is arranged at the hub that leads to a torque around the axis of rotation of the hub. A counter weight is attached to the hub, whereby the counter weight has a mass that leads to a counter-torque around the axis of rotation. The counter-torque interacts with the torque during the installation of a second rotor blade to the hub. The counter weight is mounted to the hub by a mechanical arrangement that is rotatable in respect to the hub around the axis of rotation of the hub. The mechanical arrangement and the counter weight are rotatable in respect to the hub into a certain predetermined position. 1. Wind turbine , comprising:a hub mounted to a nacelle, wherein the hub is rotatable around an axis of rotation in respect to the nacelle,a first rotor blade arranged at the hub, wherein the first rotor blade leads to a torque around the axis of rotation of the hub,a counter weight attached to the hub, wherein the counter weight comprises a mass that leads to a counter-torque around the axis of rotation of the hub, and wherein the counter-torque interacts with the torque during installation of a second rotor blade to the hub,wherein the counter weight is mounted to the hub by a mechanical arrangement that is rotatable in respect to the hub around the axis of rotation of the hub so that the mechanical arrangement and the counter weight are rotatable in respect to the hub into a predetermined position.2. The wind turbine according to claim 1 , wherein the counter weight is arranged such that the counter-torque facilitates a rotation of the hub into a predefined position which is used for arranging the second blade to the hub.3. The wind turbine according to claim 1 , wherein the torque of the counter weight at least partially compensates the torque of ...

ARRANGEMENT TO ENSURE AN AIR GAP IN AN ELECTRIC MACHINE

An arrangement to ensure an air gap in an electrical machine is provided. The electrical machine has a stator arrangement and a rotor arrangement, wherein an air gap is defined by a distance between parts of the rotor arrangement and parts of the stator arrangement. A cross section of the air gap changes along the certain length. The stator arrangement includes a stator support structure and a lamination stack, wherein the stator support structure has support elements for a two-sided support of the lamination stack, the support elements being ring-shaped and connected via a single main bearing to the rotor arrangement. Elements of the ring-shaped support element show different diameters in reference to the longitudinal axis. A first diameter of a first element of the ring-shaped support element is greater than a second diameter of a second element of the ring-shaped support-element. 1. An arrangement to ensure an air gap in an electrical machine , comprising:an electrical machine with a stator arrangement and a rotor arrangement, the rotor arrangement rotating around a longitudinal axis, wherein:parts of the rotor arrangement interact with parts of the stator arrangement to generate electrical power,an air gap is defined by a distance between the parts of the rotor arrangement and the parts of the stator arrangement,the parts of the stator arrangement are opposite to the parts of the rotor arrangement along a certain length,a cross section of the air gap changes along the certain length such that the air gap is not uniform in view to the referred certain length,the stator arrangement comprises a stator support structure and a lamination stack,the lamination stack is constructed to support a winding of the stator-coil,the stator support structure comprises support elements for a two-sided support of the lamination stack, the support elements being ring-shaped and connected via a single main bearing to the rotor arrangement,outer ends of the ring-shaped support ...

Arrangement to ensure an air gap in an electric machine

An arrangement to ensure an air gap in an electrical machine is provided. The electrical machine has a stator arrangement and a rotor arrangement, the rotor arrangement rotating around a longitudinal axis. An air gap is defined by a distance between parts of the rotor arrangement and parts of the stator arrangement, wherein the parts of the stator arrangement are opposite to the parts of the rotor arrangement along a certain length. The stator arrangement includes a lamination stack which is constructed to support a winding of a stator-coil, and the rotor arrangement includes a plurality of permanent magnets. A cross section of the air gap changes along the certain length such that the air gap is not uniform in view to the certain length. The cross section of the air gap is configured by a change in a shape of the lamination stack along the certain length.

BASE FRAME STRUCTURE FOR A WIND TURBINE

A base frame for a nacelle of a direct driven wind turbine includes a first interface to connect a rotor arrangement of the wind turbine with the first interface. A second interface is arranged to connect a tower with the second interface. An intermediate part connects the first and the second interface. The second interface has a collar structure. A third interface is arranged to attach a support structure to the base frame. The third interface exclusively has a first connection-area and a second connection-area. The first connection area connects the third interface with the collar structure. The second connection-area connects the third interface via a rib with the intermediate part of the base frame. 1. Base frame for a nacelle of a direct driven wind turbine , comprising:a first interface for connecting a rotor arrangement to the first interface,a second interface for connecting a tower to the second interface, wherein the intermediate part transfers loads or vibrations between the rotor arrangement and the tower,', 'wherein a rotational axis of the rotor arrangement and a longitudinal axis of the tower define a first plane which is oriented mainly vertical,', 'wherein the second interface comprises a collar structure which connects with at least one yaw-drive being used to turn a nacelle of a wind turbine,, 'an intermediate part which connects the first interface and the second interface,'} 'wherein the support structure is capable of carrying electrical and mechanical equipment of the wind turbine,', 'a third interface for attaching a support structure to the base frame,'}wherein the third interface exclusively comprises a first-connection-area and a second-connection-area,wherein the first-connection-area connects the third interface with the collar structure,wherein the second-connection-area connects the third interface via a rib with the intermediate part of the base frame,wherein the rib extends along a second plane which is mainly parallel to the first ...

Method for replacing a permanent magnet of a wind turbine generator

A method is provided for replacing a permanent magnet of a generator of a wind turbine from a first position to a second position. A container is provided having a shell and an opening through the shell. The opening defines an open space for storing the permanent magnet. The open space is surrounded by the shell, and the shell having a thickness that provides that the permanent magnet does not come close enough to other magnetic material to exert significant force on it. The method involves placing the permanent magnet from the first position into the container, transporting the container with the permanent magnet to the second position, removing the permanent magnet from the container, and placing the permanent magnet in the second position.

PERMANENT MAGNET ROTOR ARRANGEMENT

A permanent magnet rotor arrangement includes a rotor and a plurality of nonmagnetic, axially extending profiled tubes defining a closed channel and affixed circumferentially along the outer rim of the rotor. A plurality of permanent magnet pole pieces are arranged in the channels. A single pole piece is arranged in each channel. The cross-sectional profile of the pole piece does not correspond to the cross-sectional profile of the channel. 1. A permanent magnet rotor arrangement , comprising:a rotor;a plurality of nonmagnetic, axially extending profiled tubes defining a closed channel and affixed circumferentially along the outer rim of the rotor;a plurality of permanent magnet pole pieces arranged in the channels,wherein only one pole piece is arranged in each channel, andwherein the cross-sectional profile of the pole piece does not correspond to the cross-sectional profile of the channel.2. The permanent magnet rotor arrangement according to claim 1 , wherein the tubes are monolithic.3. The permanent magnet rotor arrangement according to claim 1 , wherein a filler substance is arranged in spaces between the pole piece and an inner surface of the tube.4. The permanent magnet rotor arrangement according to claim 3 , wherein the filler substance is a resin.5. The permanent magnet rotor arrangement according to claim 1 , wherein the tubes are affixed to the rotor by a dovetail joint.6. The permanent magnet rotor arrangement according to claim 5 , wherein at least one protrusion of the tubes engages at least one corresponding groove of the rotor.7. The permanent magnet rotor arrangement according to claim 1 , wherein the tubes are affixed to the rotor by one of: welding claim 1 , spot welding claim 1 , bolting and adhering.8. The permanent magnet rotor arrangement according to claim 1 , wherein the tubes are affixed onto at least one magnet carrier being affixed to the rotor.9. The permanent magnet rotor arrangement according to claim 1 , wherein the pole pieces are ...

CONVERTER STATION WITH DIODE RECTIFIER

A converter station for the transmission of electrical power includes a converter with a DC connection terminal and an AC connection terminal, and at least one transformer connected to the AC connection terminal. In order to render the converter station as cost-effective as possible, the station is distributed over at least two independent supporting structures. 118-. (canceled)19. A converter station for transmitting electrical power , the converter station comprising:a converter having a DC-voltage connection and an AC-voltage connection;at least one transformer connected to said AC-voltage connection of said converter; andat least two support structures erected independently of one another and supporting the converter station distributed over said at least two support structures.20. The converter station according to claim 19 , wherein said converter and at least one said transformer are disposed on mutually different support structures.21. The converter station according to claim 19 , wherein said support structures are disposed to project from a body of water and at least one of said support structures is a wind-turbine support structure configured and dimensioned to hold a wind turbine.22. The converter station according to claim 19 , wherein said converter has a plurality of DC-voltage side series-connected or parallel-connected partial converters claim 19 , and wherein said partial converters are held at least partially on mutually different said support structures.23. The converter station according to claim 22 , wherein said at least one transformer comprises a plurality of partial transformers and each said partial converter is connected on an AC-voltage side to a respective partial transformer.24. The converter station according to claim 23 , which comprises a partial encapsulation housing commonly housing said partial converter and said partial transformer.25. The converter station according to claim 22 , wherein each partial converter has two DC- ...

METHOD FOR EXHAUST GAS AFTERTREATMENT AND COMBUSTION SYSTEM

In a method for exhaust gas aftertreatment, in which an exhaust gas to be aftertreated, which is produced during combustion of a fuel, is treated with a reducing agent. A constituent of the fuel is hereby also used as a constituent of the reducing agent, with the constituent of the fuel which is also used as a constituent of the reducing agent being hydrogen. The hydrogen is produced from water, and the reducing agent is a mixture of hydrogen and ammonia. 113.-. (canceled)14. A method for exhaust gas aftertreatment , comprising:producing hydrogen from water;producing a reducing agent from a mixture of produced hydrogen and ammonia; andtreating exhaust gas produced during combustion of a fuel with the reducing agent, with produced hydrogen also forming a constituent of the fuel.15. The method of claim 14 , wherein the fuel is a gas mixture of hydrogen and a hydrocarbon gas.16. The method of claim 14 , wherein the reducing agent has a hydrogen-to-ammonia ratio equal to 1 or less than 1.17. The method of claim 14 , wherein the exhaust gas is reduced using the reducing agent.18. The method of claim 14 , wherein the exhaust gas is selectively catalytically reduced using the reducing agent and a catalyst.19. The method of claim 14 , wherein the exhaust gas comprises nitrogen oxides claim 14 , further comprising denitrifying the exhaust gas during the exhaust gas aftertreatment.20. The method of claim 14 , further comprising conducting produced hydrogen to a common store claim 14 , and supplying produced hydrogen as constituent for the fuel and constituent for the reducing agent from the common store.21. The method of claim 14 , wherein the hydrogen is produced by electrolysis.22. A combustion system claim 14 , comprising:a combustion chamber for combusting a fuel to thereby produce an exhaust gas;a store connected to the combustion chamber and containing a constituent of the fuel for supply of the constituent to the combustion chamber; anda reducing chamber connected to ...

SYSTEM FOR STORING AND OUTPUTTING THERMAL ENERGY AND METHOD FOR OPERATING SAID SYSTEM

A system for storing and outputting thermal energy and a method for operating the system are provided. The system operates according to the Brayton cycle, wherein a heat accumulator is charged by a compressor and a cold accumulator is charged by turbines. The cycle is reversed for discharging. In addition, the cold accumulator supplies a cooling circuit, which provides the cooling for a superconducting generator by a cooling unit. A favorable generator weight can thereby be advantageously achieved in particular for wind turbines, because the generators are limited regarding the weight thereof due to being housed in the nacelle of the wind power plant. Thus, advantageously higher power can be converted in the wind power plant. 1. A plant for storing and releasing thermal energy , comprising: a first thermal fluid energy machine,', 'a heat accumulator,', 'a second thermal fluid energy machine, and', 'a cold accumulator,, 'a charging circuit and a discharging circuit for a working gas, wherein in the charging circuit the following units are interconnected in the specified sequence by means of a line for the working gaswherein the first thermal fluid energy machine is operated as a working machine and the second thermal fluid energy machine is operated as a power machine, as seen in the flow direction of the working gas from the heat accumulator to the cold accumulator, the cold accumulator,', 'a cooling unit, and', 'a cold consumer which is to be cooled., 'wherein the cold accumulator is adapted to be connected into a cooling circuit which is separated from the aforesaid circuits and in which the following units are interconnected in the specified sequence by means of a line for a cooling medium8. A method for storing and releasing thermal energy , comprising: a first thermal fluid energy machine,', 'a heat accumulator,', 'a second thermal fluid energy machine, and', 'a cold accumulator,, 'passing a working gas through a charging circuit or a discharging circuit, ...

Tower for a wind turbine with buttresses

A tower for a wind turbine, the tower including a plurality of tower segments including a first tower segment and at least a second tower segment, a plurality of buttresses, and an attachment piece. The tower segments are arranged one upon the other from the base of the tower to the top of the tower. The attachment piece is arranged between the first tower segment and the second tower segment, and the buttresses are attached to the attachment piece, such that loads which are acting on the tower segments are partially carried by the buttresses. A wind turbine comprising such a tower is also provided.

Method for the production of wind turbine tower segments and wind turbine tower

A method is provided for the production of tower segments, which are used to assemble a wind turbine tower. The method includes providing a sheet steel, cutting the sheet steel into a plurality of steel plates, cutting at least one opening in the plurality of steel plates, and bending the steel plates into a desired shape. The steps are performed in a continuous process, such that the steel plates move from one step in the production to the next.

METHOD FOR CHARGING AND DISCHARGING A HEAT ACCUMULATOR AND PLANT FOR STORING AND RELEASING THERMAL ENERGY, SUITABLE FOR THIS METHOD

A method for charging and discharging a heat accumulator is provided. A system by which the method can be performed is also provided. By means of the heat accumulator, it is possible to convert overcapacities of wind turbines, for example, into a charging circuit as heat in the accumulator by a compressor. If necessary, electricity can be stored into the network by a turbine and a generator, wherein the heat accumulator is discharged. The charging circuit and the discharging circuit are operated by a Rankine cycle, wherein for example river water is available as a reservoir for heat exchangers in order to cause evaporation of the working medium in the charging circuit and condensation of the working medium in the discharging circuit. 1. A method for charging and discharging a heat accumulator , comprising:during a charging cycle the heat accumulator is heated by means of a working fluid, wherein before passing through the heat accumulator a pressure increase is created in the working fluid by means of a first thermal fluid energy machine which is operated as a working machine, and after passing through the heat accumulator the working fluid is expanded and 'wherein both the charging cycle and the discharging cycle are designed as a Rankine process in which the working fluid', 'during a discharging cycle the heat accumulator is cooled by means of a working fluid, wherein before passing through the heat accumulator a pressure increase is created in the working fluid and after passing through the heat accumulator the working fluid is expanded via a second thermal fluid energy machine which is operated as a power machine, or via the first thermal fluid energy machine which is operated as a power machine,'}is evaporated during the charging cycle via a first heat exchanger and 'wherein the first heat exchanger, and if the second heat exchanger is present, the second heat exchanger also, create a temperature balance with the environment.', 'is condensed during the ...

A FLOATING WIND TURBINE AND A METHOD FOR THE INSTALLATION OF SUCH FLOATING WIND TURBINE

Provided is a floating wind turbine including a hull, a wind turbine mounted on top of the hull and a counterweight suspended below the hull by a counterweight suspension is described. Also, a method for the installation is described. The counterweight includes one or more counterweight buoyancy tanks. When the internal volume of the buoyancy tanks is filled with air, the total buoyancy of the counterweight is close to or greater than its weight. Hereby it is capable of floating in a towing/maintenance position with moderate or no support in the vertical direction from the hull or other vessels. During towing, the hull substantially has the character of a barge, substantially relying on a large waterplane area and shallow draft to maintain stability. 1. A floating wind turbine comprising a hull , a wind turbine mounted on top of the hull and a counterweight suspended below the hull by a counterweight suspension , whereinthe counterweight comprises one or more counterweight buoyancy tanks;the counterweight buoyancy tanks have dimensions such that when the internal volume is filled with air or another gas, the total buoyancy of the counterweight is close to or greater than its weight, making it capable of floating in a towing/maintenance position with moderate or no support in the vertical direction from the hull or other vessels;when the counterweight buoyancy tanks are partly or completely flooded with water, the counterweight will sink to an installed position at a level determined by the counterweight suspension; andthe counterweight suspension are separately or jointly capable of transferring both forces and moments to the hull, thereby enabling the counterweight to stabilize the hull when the counterweight is in its installed position.2. The floating wind turbine according to claim 1 , wherein after installation the floating foundation is functionally a spar buoy.3. The floating wind turbine according to claim 1 , wherein after installation the floating ...

SINGLE PIECE ELECTRIC ASSEMBLY FOR CONNECTING AN OFF-SHORE WIND TURBINE WITH AN ELECTRIC SUBSEA CABLE, WIND TURBINE, WIND TURBINE CLUSTER AND METHOD FOR MOUNTING SUCH AN ELECTRIC ASSEMBLY TO A WIND TURBINE TOWER

An electric assembly for electrically connecting at least one wind turbine being located off-shore with an electric subsea cable being connected to an on-shore power grid is provided. The electric assembly has (a) a transformer for transforming a first voltage level being provided by the at least one wind turbine to a second voltage level of the subsea cable, and (b) an external equipment being electrically and mechanically connected to the transformer for controlling an operation of at least the transformer. The transformer and the electric equipment are formed by a preinstalled package, which can be mechanically handled as a single piece. Further, a wind turbine having such an electric assembly, a wind turbine cluster having such a wind turbine, and a method for mounting such an electric assembly to a tower of a wind turbine are provided. 1. An electric assembly for electrically connecting at least one wind turbine being located off-shore with an electric subsea cable being connected to an on-shore power grid , the electric assembly comprisinga transformer for transforming a first voltage level being provided by the at least one wind turbine to a second voltage level of the subsea cable, andan external equipment being electrically and mechanically connected to the transformer for controlling an operation of at least the transformer,wherein the transformer and the electric equipment are formed by a preinstalled package, which can be mechanically handled as a single piece.2. The electric assembly as set forth in claim 1 , whereinthe external equipment comprises a gas insulated switchgear.3. The electric assembly as set forth in claim 1 , whereinthe external equipment comprises an earthing switch.4. The electric assembly as set forth in claim 1 , whereinthe external equipment comprises an electric disconnector.5. The electric assembly as set forth in claim 1 , whereinthe external equipment comprises a surge arrestor.6. The electric assembly as set forth in claim 1 , ...

ROTOR BLADE OF A WIND TURBINE

A rotor blade of a wind turbine with a raked tip portion is provided. The tip portion is raked, i.e. curved, in a rotor blade plane comprising the tip base chord and a line which is parallel to the pitch axis of the rotor blade. Additionally, the orientation of the chords with reference to the chord at the tip base changes between the tip base and the tip. In other words, the trailing edge of the tip portion is twisted. Optionally, the tip portion is additionally swept out of the rotor blade plane, which is characterized by a cant angle. 1. A rotor blade of a wind turbine , comprisinga blade body extending between a root portion of the rotor blade and a tip portion of the rotor blade, a trailing edge and a leading edge,wherein the rotor blade is arranged and prepared for being mounted to a hub of the wind turbine and for being pitched about a pitch axis, andwherein a rotor blade plane is defined by the plane comprising the chord at the tip base and a line which is parallel to the pitch axis, wherein the tip base is the part of the rotor blade at which the tip portion joins the blade body,wherein the trailing edge of the tip portion has a curved shape as projected on the rotor blade plane such that a trailing edge sweep angle increases from the tip base to the tip of the rotor blade, andwherein orientation of the chords with reference to the chord at the tip base changes between the tip base and the tip such that a chord tilt angle changes between the tip base and the tip.2. The rotor blade according to claim 1 , wherein the trailing edge sweep angle increases by at least 2 degrees from the tip base to the tip.3. The rotor blade according to claim 1 , wherein the trailing edge sweep angle increases by at most 40 degrees from the tip base to the tip.4. The rotor blade according to claim 1 , wherein the chord tilt angle varies by at least 2 degrees between the tip base and the tip.5. The rotor blade according to claim 1 , wherein the chord tilt angle varies by at most ...

SYSTEM FOR STORING AND OUTPUTTING THERMAL ENERGY HAVING A HEAT ACCUMULATOR AND A COLD ACCUMULATOR AND METHO FOR THE OPERATION THEREOF

A system for storing and outputting thermal energy and a method for operating the system are provided. The system has a heat accumulator and a cold accumulator. The heat accumulator and the cold accumulator are discharged in two separate discharging circuits, wherein the thermal energy is converted into electrical energy, for example by a generator. The residual heat from the process in the circuit can be advantageously fed to the process in the circuit by a first heat exchanger, whereby the total efficiency is advantageously improved. Furthermore, the heat from the heat accumulator can be advantageously transferred into the first circuit by a waste-heat steam generator. The heat accumulator and the cold accumulator can be charged, for example, with excess energy from the electric network by a motor. Excess energy reserves of alternative energy resources, for example, can thus be stored. 1. A plant for storing and releasing thermal energy comprising: a first thermal fluid energy machine operated as a working machine,', 'a release point for heat from the heat accumulator, and', 'a second thermal fluid energy machine operated as a power machine,, 'a heat accumulator and a cold accumulator, wherein the heat accumulator is adapted to release the stored heat to a first line in a discharging circuit for a working medium, and in the discharging circuit the following units are interconnected in the specified sequence by means of the first line a third thermal fluid energy machine which is operated as a working machine, downstream of said release point for the cold stored in the cold accumulator,', 'a heat source, and', 'a fourth thermal fluid energy machine operated as a power machine., 'wherein the cold accumulator is adapted to release the stored cold to a second line, wherein the second line forms a closed circuit in which the following units are interconnected in the specified sequence by the means of the second line2. The plant as claimed in claim 1 ,wherein the heat ...

INSTALLATION FOR STORING THERMAL ENERGY

An installation for storing thermal energy is provided. The storage is carried out by the compression and relaxation of a working gas, wherein pump and compressor can be driven by, for example, electric motors which temporarily absorb excess power generated in the power grid. The generated thermal energy is temporarily stored in a cold accumulator and a heat accumulator. According to the invention, a vapor circuit is provided to connect to the heat accumulator and the cold accumulator for discharging the installation, by which a turbine for generating electrical energy can be driven by a generator. Said circuit is implemented by means of another conduit system distinct from the circuit for charging the installation. Advantageously, thermal energy generated from overcapacities in the power grid can thus be reconverted with high yield into electrical energy via a vapor circuit. 1. An installation for storing thermal energy , said installation comprisinga charging circuit for a working gas, wherein, in the charging circuit, the following units are connected to one another in the stated sequence by a first line for the working gas:a first thermal fluid energy machine,a heat accumulator anda second thermal fluid energy machine,wherein, as viewed in the throughflow direction of the working gas from the first thermal fluid energy machine to the second thermal fluid energy machine, the first thermal fluid energy machine is positioned as a work machine and the second fluid energy machine is positioned as a prime mover,wherein the heat accumulator is connected, via a second line, into a discharging circuit for steam as working medium, wherein, in the discharging circuit, the following units are connected to one another in the stated sequence by the second line:a pump,the heat accumulator, anda third thermal fluid energy machine positioned as a prime mover.2. The installation as claimed in claim 1 , whereinthe heat accumulator is traversed by flow in opposite directions in the ...

OFFSHORE SUPPORT STRUCTURE, OFFSHORE TOWER INSTALLATION WITH THE OFFSHORE SUPPORT STRUCTURE AND OFFSHORE WIND POWER PLANT WITH THE OFFSHORE TOWER INSTALLATION

An offshore support structure is provided, including at least one upper support structure section for supporting at least one functional device with a functional mass, at least one lower support structure section for founding the offshore support structure at a seabed of a sea and at least one transition support structure section which is arranged between the upper support structure section and the lower support structure section for physically connecting the upper support structures section and the lower support structure section. The lower support structure section forms a foundation of an offshore tower installation. With such an arrangement, it is possible that the transition support structure section is developed with a lower mass in comparison to an arrangement where the transition support structure section is in the water. The offshore tower installation is used for offshore wind power plants. 1. An offshore support structure comprising:at least one upper support structure section for supporting at least one functional device with a functional mass;at least one lower support structure section for founding the offshore support structure at a seabed of a sea; andat least one transition support structure section which is arranged between the at least one upper support structure section and the at least one lower support structure section for physically connecting the at least one upper support structures section and the at least one lower support structure section.wherein the at least one upper support structure section, the at least one functional device and the at least one transition support structure section comprise together an upper support structure mass, and the at least one lower support structure section comprises a lower support structure mass,wherein a mass ratio of the lower support structure mass to the upper support structure mass is in a range from 1 to 2.2. The offshore support structure according to claim 1 , wherein the mass ratio is within a ...

CUTTING MACHINE FOR PRODUCING STACKED LAMINA ELEMENTS OF AN ELECTRICAL MACHINE STATOR

A cutting machine for producing lamina elements includes a cutting mechanism for cutting out a first lamina element from a foil at a first position within the foil and for cutting out a second lamina element from the foil at a second position within the foil. With respect to a centerline of the foil the first position has a first distance and the second position has a second distance being different to the first distance. The cutting machine is adapted for releasing the cut out first lamina element and the cut out second lamina element, such that by utilizing the gravitational force the first lamina element and the second lamina element are transferred to a container, in which they are arranged in a stacked and in an aligned manner with respect to each other. 1. A cutting machine for producing lamina elements , the cutting machine comprising:a cutting mechanism for cutting out a first lamina element from a foil at a first position within the foil and for cutting out a second lamina element from the foil at a second position within the foil, wherein with respect to a centerline of the foil the first position has a first distance and the second position has a second distance being different to the first distance,wherein the cutting machine is adapted for releasing the cut out first lamina element and the cut out second lamina element, such that by utilizing the gravitational force the first lamina element and the second lamina element are transferred to a container, in which they are arranged in a stacked and in an aligned manner with respect to each other.2. A system for producing and stacking lamina elements in an aligned manner , in particular lamina elements for a stator of an electrical generator , the system comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'a cutting machine as claimed in for producing lamina elements; and'}a container for stacking lamina elements in an aligned manner,the container comprising a chassis, which is adapted for receiving ...

METHOD OF ATTACHING A MAGNET TO A ROTOR OR A STATOR OF AN ELECTRICAL MACHINE

A wind turbine is provided. The wind turbine includes a generator including a rotor and a stator and a magnet mounting arrangement. The magnet mounting arrangement includes a magnet arranged along a surface of the rotor or stator, a pair of retainers arranged one on each side of the magnet, and an adhesive bonding the pair of retainers to the magnet and the magnet to the rotor or stator. 1. A wind turbine , comprising: [ a magnet mounting arrangement for a rotor or stator of an electrical machine, comprising:', 'a magnet arranged along a surface of the rotor or stator;', 'a pair of retainers arranged one on each side of the magnet; and', 'an adhesive bonding the pair of retainers to the magnet and the magnet to the rotor or stator; and, 'a rotor, comprising, 'a stator., 'a generator, comprising2. The wind turbine according to claim 1 , wherein a retainer of the retainer pair comprises a sheet metal retainer.3. The wind turbine according to claim 1 , wherein a retainer comprises a Z-profile retainer.4. The wind turbine according to claim 1 , wherein the magnet includes a plurality of magnet elements arranged in a staggered manner claim 1 , and the retainers are dimensioned to overlap on the upper faces of each of the magnet elements of the magnet. This application is a divisional of U.S. Ser. No. 13/582,065 filed on Aug. 31, 2012 which is the US National Stage of International Application No. PCT/EP2010/059399, filed Jul. 1, 2010 and claims the benefit thereof. The International Application claims the benefits of European Patent Office application No. 10155292.5 EP filed Mar. 3, 2010. All of the applications are incorporated by reference herein in their entirety.The invention describes a method of attaching a magnet to a rotor or a stator of an electrical machine. The invention further describes a magnet mounting arrangement, a generator, and a wind turbine.An electrical machine such as a generator can have a large field (usually the rotor), to which a corresponding ...

STORAGE AND RECOVERY OF THERMAL ENERGY USING HEAT STORAGE MATERIAL BEING FILLED IN A PLURALITY OF ENCLOSURES

A thermal energy storage and recovery device is provided including a container having a first fluid terminal for inserting heat transfer medium into the interior of the container and a second fluid terminal for extracting heat transfer medium from the interior of the container, a heat storage material for receiving thermal energy from the heat transfer medium when in a first operational mode and releasing thermal energy to the heat transfer medium when in a second operational mode, and a plurality of enclosures each filled at least partially with a part of the heat storage material. The enclosures are spatially arranged within the container so a flow of the heat transfer medium is guidable between the first and second fluid terminals and a direct thermal contact between the heat transfer medium and the enclosures is achievable as the heat transfer medium flows between the first and second fluid terminals. 1. A thermal energy storage and recovery device comprising:a container having a first fluid terminal for inserting a heat transfer medium into the interior of the container and a second fluid terminal for extracting the heat transfer medium from the interior of the container,a heat storage material (a) for receiving thermal energy from the heat transfer medium when the thermal energy storage and recovery device is in a first operational mode and (b) for releasing thermal energy to the heat transfer medium when the thermal energy storage and recovery device is in a second operational mode, anda plurality of enclosures each being filled at least partially with a part of the heat storage material, wherein the enclosures are spatially arranged within the container in such a manner that(i) a flow of the heat transfer medium is guidable between the first fluid terminal and the second fluid terminal and(ii) a direct thermal contact between the heat transfer medium and the plurality of the enclosures is achievable as the heat transfer medium flows between the first fluid ...

METHOD FOR CHARGING AND DISCHARGING A HEAT ACCUMULATOR AND SYSTEM FOR STORING AND RELEASING THERMAL ENERGY SUITABLE FOR SAID METHOD

A method for charging and discharging a heat accumulator in a charge cycle and in a discharge cycle is provided. The discharging takes place by means of a steam turbine which has a high-pressure part and a low-pressure part. In order to provide heat to both turbine parts, the heat accumulator is divided into a part-accumulator for the high-pressure part and a part-accumulator for the low-pressure part. Furthermore, a system is provided in which the heat accumulator is divided into two part-accumulators. By operating a turbine with the high-pressure part and low-pressure part, the efficiency and yield of heat from the heat accumulator can be advantageously increased. The system can, for example, be used to temporarily store surplus capacities of a wind plant. 1. A method for charging and discharging a heat accumulator , comprising:during a charging cycle, heating up the heat accumulator by a working fluid, a pressure rise being generated in the working fluid, before it runs through the heat accumulator, by a first thermal fluid energy machine, connected up as a working machine, and, after running through the heat accumulator, the working fluid undergoes the substantial part of its expansion, and,during a discharging cycle, cooling the heat accumulator by a working fluid, a pressure rise being generated in the working fluid before it runs through the heat accumulator, and, after running through the heat accumulator, the working fluid being expanded via a second thermal fluid energy machine connected up as an engine,wherein the discharging cycle is configured as a Rankine process, in whichthe working fluid is first conducted through a first line system running in the heat accumulator,subsequently, the working fluid is expanded via a high-pressure part HP of the second thermal fluid energy machine,subsequently, the working fluid is conducted through a second line system running in the heat accumulator, andsubsequently, the working fluid is expanded via a low-pressure ...

Wind turbine

A wind turbine for power generation is provided. The wind turbine includes a power generating unit and a rotor having a plurality of blades. To control power output of the wind turbine, the blades are capable of being pitched by a blade pitch adjusting device. The wind turbine also includes a pitch control unit for controlling the blade pitch adjusting device. Furthermore, the wind turbine includes a load determining device for determining the blade load from the pitch activity of the blades.

PROTECTION SYSTEM FOR A THREADED FASTENER AND A METHOD FOR INSTALLATION, INSPECTION AND MAINTENANCE OF SUCH PROTECTION SYSTEM

A protection system for a threaded fastener is provided. The system includes a threaded fastener, a sleeve and either two end caps, or one end cap and one threaded hole in a component. To avoid exposure to severely corrosive environments the sleeve and either the two end caps, or the one end cap and the one threaded hole, together form an enclosure around the threaded fastener. The enclosure forms a cavity which is completely sealed from the environment. Furthermore, methods are described for mounting, inspection and maintenance of such protection system. 1. A protection system for a threaded fastener comprising a threaded fastener , a sleeve and either two end caps , or one end cap and one threaded hole in a component , said sleeve and either the two end caps , or the one end cap and the one threaded hole , together form an enclosure around the threaded fastener , wherein a sealing ring is provided which comprises an inner sealing which seals against the sleeve and an outer sealing which seals against the end cap such that said enclosure forms a cavity which is completely sealed from the environment.2. A protection system for a threaded fastener according to claim 1 , wherein the cavity inside the sleeve and either the two end caps claim 1 , or the one end cap and the one threaded hole claim 1 , is partly or completely filled with a corrosion-protective substance claim 1 , wherein said corrosion-protective substance is a corrosion-protecting oil or grease.3. A protection system for a threaded fastener according to claim 1 , wherein the shape and/or material of part of or the whole end cap is sufficiently flexible to ensure that any external pressure gives rise to an approximately equal internal pressure.4. A protection system for a threaded fastener according to claim 1 , wherein part of or the whole end cap is shaped as a bellows.5. A protection system for a threaded fastener according to claim 1 , wherein part of or the whole end cap is manufactured from an ...

WIND TURBINE

A wind turbine including a load carrying component made of or at least comprising a fibre-reinforced composite material is provided. The wind turbine also includes a stator endplate or rotor endplate of a direct drive generator where in the stator endplate or rotor endplate is made of or includes a fibre reinforced composite material. 118-. (canceled)19. A wind turbine , comprising:a load carrying component,wherein the load carrying component comprises fibre reinforced composite material.201. The wind turbine as claimed in claim , further comprising:a stator endplate or rotor endplate of a direct drive generator,wherein the stator endplate or rotor endplate comprises fibre reinforced composite material.211. The wind turbine as claimed in claim , further comprising a stator hollow tube construction of a direct drive generator ,wherein the stator hollow tube construction comprises fibre reinforced composite material.221. The wind turbine as claimed in claim , further comprising a rotor sleeve of a direct drive generator ,wherein the rotor sleeve comprises fibre reinforced composite material.231. The wind turbine as claimed in claim , further comprising a shaft of a direct drive generator connecting a hub to a generator ,wherein the shaft comprises fibre reinforced composite material.241. The wind turbine as claimed in claim , further comprising a shaft connecting the hub to the gearbox of a geared turbine or connecting the hub to the hydraulic aggregate of a hydraulic geared turbine ,wherein the shaft comprises fibre reinforced composite material.251. The wind turbine as claimed in claim , further comprising a hub of a direct drive generator , a geared or a hydraulic geared turbine ,wherein the hub comprises fibre reinforced composite material.261. The wind turbine as claimed in claim , further comprising a reinforcement plate at the blade root of a direct drive generator , a geared or a hydraulic geared turbine ,wherein the reinforcement plate comprises fibre ...

METHOD FOR MANUFACTURING A COMPONENT FOR A WIND TURBINE

A method for manufacturing a component for a wind turbine is provided. In a first step, a fiber material is laid onto a mold surface. In a further step, an uncured foam material is provided on top of the fiber material. Thereafter, the uncured foam material is cured to form a core member. Then, a resin impregnating the fiber material is cured to form the component. Thus, a core member for a component of a wind turbine can be provided easily. 1. A method for manufacturing a component for a wind turbine , comprisinga) laying a fiber material onto a mold surface,b) providing an uncured foam material on top of the fiber material,c) curing the uncured foam material to form a core member, andd) curing a resin impregnating the fiber material to form the component.2. The method of claim 1 , wherein in step b) the uncured foam material is applied to the fiber material in a foamed condition.3. The method of claim 1 , wherein in step b) the uncured foam material is applied to the fiber material in an unfoamed condition claim 1 , the foamed condition being obtained after application of the uncured foam material to the fiber material.4. The method of claim 1 , wherein in or after step b) the foam material is shaped in accordance with a desired geometry of the core member.5. The method of claim 4 , wherein an applicator comprising a geometry corresponding to the desired geometry of the core member is moved across the foam material to shape the same.6. The method of claim 5 , wherein the applicator comprises an opening for supplying the uncured foam material.7. The method of claim 6 , wherein the foam material is supplied to the opening of the applicator at the same time as the applicator is moved across applied foam material that has already been applied to the fiber material.8. The method of claim 5 , wherein the applicator is configured to apply a covering layer on top of the foam material.9. The method of claim 1 , wherein in step b) the uncured foam material comprises chopped ...

SLIPFORMED CONCRETE TOWER

An assembly and method of constructing a concrete tower is provided. The method includes steps of erecting a central pillar, mounting a platform on the central pillar, setting a slipform defining a portion of the concrete tower, pouring liquid concrete from the platform into the slipform, and leaving the liquid concrete to solidify in the slipform. The slipforming repeats to form further portions of the concrete tower. Each of the further portions of the concrete tower is formed on top of a preceding one of the portions of the concrete tower. The assembly includes a central pillar, at least one slipform and a platform mountable on the central pillar and comprising means for pouring liquid concrete into the at least one slipform. 1. A method of constructing a concrete tower , the method comprising:a) erecting a central pillar;b) mounting a platform on the central pillar;c) setting a slipform defining a portion of the concrete tower;d) pouring liquid concrete from the platform into the slipforme) leaving the liquid concrete to solidify in the slipform; andf) repeating steps c) through e) to form further portions of the concrete tower, wherein each of the further portions of the concrete tower is formed on top of at least a preceding one of the portions of the concrete tower.2. The method of claim 1 , further comprising a step of raising the platform on the central pillar.3. The method of claim 1 , further comprising a step of increasing a height of the central pillar before repeating steps c) through e).4. The method of claim 3 , wherein increasing a height of the central pillar comprises adding a pillar portion to the central pillar.5. The method of claim 4 , wherein adding the pillar portion is carried out using a crane arranged on the platform for lifting the pillar portion to a top end of the central pillar.6. The method of claim 1 , wherein the central pillar is arranged in a centre of the concrete tower.7. The method of claim 1 , further comprising leaving the ...

INSTALLATION FOR STORING THERMAL ENERGY

An installation for storing thermal energy which can be obtained, for example, at times of overcapacities, from regenerative energy and then be stored is provided. The energy stored in a heat accumulator, a cold accumulator and in an additional heat accumulator can be, when needed, reconverted into electrical energy by circuits via a generator (G) while using a compressor and a turbine. The working gas is humidified by a humidification column, ideally until saturation, whereby, advantageously, a greater mass flow can be obtained at a lower volume flow. For this reason, more economical components can be used while simultaneously a high yield of the installation is achieved. 1. An installation for storing thermal energy , comprising:a circuit for a working gas, wherein, in the circuit, the following units are connected to one another in the stated sequence by a line for the working gas:a cold accumulator,a first thermal fluid energy machine,a heat accumulator anda second thermal fluid energy machine,wherein, as viewed in a throughflow direction of the working gas from the cold accumulator to the heat accumulator, the first thermal fluid energy machine is positioned as work machine and the second thermal fluid energy machine is positioned as prime mover,wherein a humidification unit for the working gas is provided in the line between the first thermal fluid energy machine and the heat accumulator.2. The installation as claimed in claim 1 , wherein a water separator is arranged in the line downstream of the second thermal fluid energy machine.3. The installation as claimed in claim 2 , wherein the water separator is connected to the humidification unit via a feed line.4. The installation as claimed in claim 1 , wherein the line leading away from the second thermal fluid energy machine leads through a heat exchanger situated in the humidification unit.5. The installation as claimed in claim 1 , wherein an auxiliary heat accumulator is provided in a branch line claim 1 , ...

INSTALLATION FOR STORING THERMAL ENERGY AND METHOD FOR THE OPERATION THEREOF

An installation for storing thermal energy is provided, comprising a heat accumulator and a cold accumulator. A method for charging and discharging said thermal accumulators is also provided. Using the installation, excess electrical energy can be utilized for converting mechanical energy from a compressor and a turbine into thermal energy, which is available in the heat accumulator and the cold accumulator for a subsequent generation of electrical energy. A temporary heat store is discharged during the charging of the heat accumulator and the cold accumulator, preheating the working gas for the compressor. When the heat accumulator and the cold accumulator are discharged via the turbine and the compressor for the purpose of generating electrical energy, the temporary store can be recharged so that the heat stored therein can be made available for a subsequent charging process of the heat accumulator and the cold accumulator. 1. An installation for storing thermal energy , comprisinga circuit for a working gas, wherein in the circuit the following units are connected to one another in the order indicated by a line for the working gas:a first thermal fluid energy machine,a heat accumulator,a second thermal fluid energy machine anda cold accumulator,wherein, in the throughflow direction of the working gas, as seen from the heat accumulator to the cold accumulator, the first thermal fluid energy machine is connected as a work machine and the second thermal fluid energy machine is connected as a power machine,wherein a low-temperature heat accumulator is provided in the circuit, upstream of the first fluid energy machine, whereinthe circuit is embodied as a closed circuit and a heat exchanger is arranged in the circuit, between the cold accumulator and the low-temperature heat accumulator, orthe circuit is open between the cold accumulator and the low-temperature heat accumulator.2. The installation as claimed in claim 1 , whereinthe circuit is designed as an open ...

SLIDING BEARING ARRANGEMENT FOR A WIND TURBINE

A sliding bearing arrangement for a wind turbine and a method to service the bearing is provided. A sliding bearing arrangement of a wind turbine includes a first shaft and a second shaft, whereby a first radial sliding bearing is arranged between the shafts. The first radial sliding bearing includes bearing pads. The first shaft includes a collar, whereby the collar is arranged mainly perpendicular to the axis of rotation, and radially overlaps at least a part of a radial surface of the second shaft. The collar includes an opening to exchange the bearing pads of the first radial sliding bearing of the bearing arrangement. 1. A sliding bearing arrangement of a wind turbine , whereby the arrangement comprises a first shaft and a second shaft , the first shaft and the second shaft being arranged coaxially to each other , and one of the first shaft and the second shaft shafts is rotatable with respect to the other shaft around a common axis of rotation ,whereby a first radial sliding bearing is arranged between the first shaft and the second shaft to support the rotatable shaft by the stationary shaft,whereby the first radial sliding bearing comprises bearing pads,whereby the first shaft comprises a collar, the collar being arranged mainly perpendicular to the common axis of rotation, and radially overlaps at least a part of a radial surface of the second shaft,whereby the collar comprises a first axial sliding bearing to support axial loads between the first shaft and the second shaft,whereby the collar is connected to the first shaft at a first radial position of the collar, and the first axial sliding bearing is connected to the collar at a second radial position of the collar,wherein the collar comprises an opening in an area between the first radial position and the second radial position, to exchange the bearing pads of the first radial sliding bearing of the sliding bearing arrangement.2. The sliding bearing arrangement according to claim 1 , wherein the second ...

CHARGING SYSTEM WITH A HIGH TEMPERATURE THERMAL ENERGY EXCHANGE SYSTEM AND METHOD FOR CHARGING HEAT STORAGE MATERIAL OF THE HIGH TEMPERATURE THERMAL ENERGY EXCHANGE SYSTEM WITH THERMAL ENERGY

A charging system with a least one high temperature thermal energy exchange system is provided. The high temperature thermal energy exchange system includes at least one heat exchange chamber with chamber boundaries which surround at least one chamber interior of the heat exchange chamber, wherein the chamber boundaries include at least one inlet opening for guiding in an inflow of at least one heat transfer fluid into the chamber interior and at least one outlet opening for guiding out an outflow of the heat transfer fluid out of the chamber interior. At least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid. 1. A charging system with a least one high temperature thermal energy exchange system , comprising:at least one heat exchange chamber with chamber boundaries that surround at least one chamber interior of the at least one heat exchange chamber, wherein—the chamber boundaries comprise at least one inlet opening for guiding in an inflow of at least one heat transfer fluid into the at least one chamber interior and at least one outlet opening for guiding out an outflow of the at least one heat transfer fluid out of the at least one chamber interior;at least one heat storage material is arranged in the at least one heat exchange chamber interior such that a heat exchange flow of the at least one heat transfer fluid through the at least one heat exchange chamber interior causes a heat exchange between the at least one heat storage material and the at least one heat transfer fluid; andat least one charging unit for heating the at least one heat transfer fluid of the inflow.2. The charging system according to claim 1 , wherein the at least one charging unit is arranged at the at least one inlet opening.3. The charging system according to claim 1 , further ...

POWER PLANT WITH STEAM CYCLE AND WITH A HIGH TEMPERATURE THERMAL ENERGY EXCHANGE SYSTEM AND METHOD FOR MANUFACTURING THE POWER PLANT

A power plant with at least one steam cycle and with at least one high temperature thermal energy (heat) exchange system is provided. The high temperature thermal energy exchange system includes at least one heat exchange chamber with chamber boundaries which surround at least one heat exchange chamber interior of the heat exchange chamber. The chamber boundaries include at least one inlet opening for guiding in an inflow of at least one heat transfer fluid into the heat exchange chamber interior and at least one outlet opening for guiding out an outflow of the heat transfer fluid out of the heat exchange chamber interior; at least one heat storage material is arranged in the heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid. 1. A power plant with at least one steam cycle and with at least one high temperature thermal energy exchange system , with—at least one heat exchange chamber with chamber boundaries which surround at least one heat exchange chamber interior of the at least one heat exchange chamber , wherein—the chamber boundaries comprise at least one inlet opening for guiding in an inflow of at least one heat transfer fluid into the at least one heat exchange chamber interior and at least one outlet opening for guiding out an outflow of the heat transfer fluid out of the at least one heat exchange chamber interior;—at least one heat storage material is arranged in the at least one heat exchange chamber interior such that a heat exchange flow of the heat transfer fluid through the heat exchange chamber interior causes a heat exchange between the heat storage material and the heat transfer fluid; and—the high temperature thermal energy exchange system comprises at least one retrofit component with which the power plant with steam cycle is equipped.2. The power plant with steam cycle according to ...

THERMAL ENERGY STORAGE WITH REDUCED INTERNAL NATURAL CONVECTION

A thermal energy storage is provided comprising a housing, a thermal energy storage structure arranged within the housing, the thermal energy storage structure comprising thermal energy storage elements and a plurality of dividing elements, the plurality of dividing elements being arranged such that the thermal energy storage elements are divided into a plurality of layers, a fluid inlet, the fluid inlet being in fluid communication with the housing and adapted to receive a working fluid and provide a flow of working fluid towards the housing, and a convection reducing structure arranged adjacent the thermal energy storage structure at a side of the thermal energy storage structure that faces the fluid inlet. Furthermore, a method of storing thermal energy and a steam power plant for producing electrical energy are described. 1. A thermal energy storage comprising:a housing,a thermal energy storage structure arranged within the housing, the thermal energy storage structure including, thermal energy storage elements and a plurality of dividing elements, the plurality of dividing elements being arranged such that the thermal energy storage elements are divided into a plurality of layers,a fluid inlet, the fluid inlet being in fluid communication with the housing and adapted to receive a working fluid and provide a flow of working fluid towards the housing, anda convection reducing structure arranged adjacent the thermal energy storage structure at a side of the thermal energy storage structure that faces the fluid inlet.2. The thermal energy storage according to claim 1 , wherein the convection reducing structure comprises a layer of convection reducing elements extending in a direction perpendicular to the layers of thermal storage elements.3. The thermal energy storage according to claim 2 , wherein the convection reducing structure comprises at least one perforated plate for supporting the layer of convection reducing elements.4. The thermal energy storage ...

Direct drive generator and wind turbine

The invention concerns a direct drive or directly driven generator (2) for a wind turbine (1) comprising a stator (17) and a rotor (16), wherein the stator (17) comprises a stator ring (71) comprising several ring-segment-shaped stator segments (28) each having at least one stator element (33) for the power generation and wherein the rotor (16) comprises a rotor ring pivotable around a centre axis (A) of the generator (2), the rotor ring comprises several ring-segment-shaped rotor segments (20) each having at least one rotor element (25) for the power generation. Furthermore the invention concerns a wind turbine (1) comprising such a direct drive generator (2).

Base frame structure for a wind turbine

Bottom frame for wind turbine housing and wind turbine comprising the same

Windmill blade

Offshore foundation structure, offshore foundation using such a structure and method of establishing an offshore foundation

A method of establishing an offshore foundation, in particular an offshore foundation for a wind turbine installation, on the seabed (3), in which at least one pile (2) is driven into the seabed (3) in order to establish an anchor for a foundation structure is provided. In the method, the foundation structure comprises at least one tubular hollow foundation member (1) with a longitudinal axis and an open longitudinal end (11) which is placed on the seabed (3) such that the open longitudinal end (11) shows towards the seabed (3). The pile (2) is located in the tubular hollow foundation member (1) when it is placed on the seabed (3) and is driven out of the tubular hollow foundation member (1) along the longitudinal axis and rammed into the seabed (3) to establish an anchor for the foundation structure after placing the hollow foundation member (1) on the seabed.

Offshore foundation structure, offshore foundation and method of establishing the same

An offshore foundation structure, in particular a wind turbine foundation structure, with at least one leg (11) to be positioned on the seabed (6) is provided. The at least one leg (11) comprises: - a main tube (3) extending along an axial direction, - a seabed plate (1) which is located at the seabed (6) side end of the main tube (3) and prepared to hold the structure at least temporarily on the seabed (6), - a seabed plate tube (2) which extends from said seabed plate (1) into or around said main tube (3) and is prepared to be moved in relation to said main tube (3) in the axial direction of the main tube (3), and - an adjusting means (5) which is able to, and prepared for, adjusting the relative axial position of the main tube (3) and the seabed plate tube (2) to each other.

Method for determining fatigue load of a wind turbine and for fatigue load control, and wind turbines therefor

Method and apparatus for prediction-based wind turbine control

Method and arrangement to measure the deflection of a wind-turbine blade

The invention relates to a method and arrangement to measure the deflection of a blade of a wind-turbine. The blade comprises a cavity inside the blade. A reflector, which is located inside the cavity of the blade, is coupled by a wireless signal with a distance-measurement-device. The distance-measurement-device uses the wireless signal to measure the distance between the distance-measurement-device and the reflector. A line of sight is established and maintained between the distance-measurement-device and the reflector even when the blade is deflected. The reflector is inclined relative to the line of sight in a way, that a lateral movement of the reflector relative to the line of sight results in a change of the distance between the distance-measurement-device and the reflector, while the lateral movement is caused by an deflection of the blade. The distance-measurement-device is designed to measure the change of the distance, which is used to determine the deflection of the blade.

Generator, wind turbine, method of assembling a generator and use of a generator in a wind turbine

The invention describes a generator (1) comprising a rotor (2) with a number M of magnetic rotor pole shoes (3) and a means for producing a magnetic field, a stator (5) with a number C of stator coils (7, S 1,1 , S 2,1 , S 3,1 , S 1,2 , S 2,2 , ..., S 1,c , S 2,c , S 3,c ) wound on the stator (5) , and a generator-utility grid interface comprising a plurality of diode rectifiers (11, 11', 11"), whereby each diode rectifier (11, 11', 11") is connected to a stator coil (7, S 1 S 1,1 , S 2,1 , S 3,1 , S 1,2 , S 2,2 , ..., S 1,c , S 2,c , S 3,c ). Thereby the number C of stator coils (7, S 1,1 , S 2,1 , S 3,1 , S 1,2 , S 2,2 , ..., S 1,c , S 2,c , S 3,c ) is greater than the number M of rotor pole shoes (3), or the number M of rotor pole shoes (3) is greater than, but not an integer multiple of, the number C of stator coils (7, S 1,1 , S 2,1 , S 3,1 , S 1,2 , S 2,2 , ..., S 1,c , S 2,c , S 3,c ). The invention further describes a wind turbine (2) using the generator of the present invention and a method of assembling such a generator (1).

Generator, wind turbine, method of assembling a generator and use of a generator in a wind turbine

A generator is provided comprising a rotor with a number of magnetic rotor pole shoes, a stator with a number of stator coils wound on the stator, and a generator-utility grid interface comprising a plurality of diode rectifiers, each diode rectifier is connected to a stator coil and the number of stator coils is greater than the number of rotor pole shoes, or the number M of rotor pole shoes is greater than, but not an integer multiple of, the number of stator coils. A wind turbine utilizing the generator of the present invention and a method of assembling such a generator are provided.

Generator, wind turbine, method of assembling a generator and use of a generator in a wind turbine

Offshore foundation structure, offshore foundation using such a structure and method of establishing an offshore foundation

Wind turbine

Windmill

Assembly and/or maintenance of a wind turbine

The invention concerns a method for assembly and/or maintenance of a wind turbine (29), whereby at least one rotor blade (21) is attached to and/or detached from a hub (13) of the wind turbine (29) which hub (13) is removably fixed to a mounting device (7) positioned at a substantial distance above a ground surface level. The invention also concerns a mounting device (7) for that purpose.

Assembly and/or maintenance of a wind turbine

Lifting frame for lifting a wind turbine rotor blade and method of mounting wind turbine rotor blades

Wind turbine

The invention concerns a wind turbine (1) comprising a retaining arrangement (5, 6, 7), a main shaft (10) and a direct drive generator (2) comprising a rotor (16) having a first and a second supporting element (18, 19) and a stator (17) having a first and a second supporting element (26, 27), wherein the main shaft (10) is pivoted relatively to the retaining arrangement (5, 6, 7) by a first (11) and a second (12) bearing, the first supporting element (18) of the rotor (16) and the main shaft (10) are connected with each other, the first supporting element (26) of the stator (17) is supported on the main shaft (10) and/or on the first supporting element (18) of the rotor (16) by a third bearing (35), the second supporting element (27) of the stator (17) and the retaining arrangement (5, 6, 7) are connected with each other and the second supporting element (19) of the rotor (16) is supported on the retaining arrangement (5, 6, 7) and/or on the second supporting element (27) of the stator (17) by a fourth bearing (36).

Rotational speed control of a wind turbine based on rotor acceleration

It is described a method for controlling the rotational speed of a rotor (110) of a wind turbine (100) in particular at high wind speeds. The described method comprises (a) determining a rotor acceleration value, wherein the rotor acceleration value is caused by a temporal change of the rotational speed of the rotor (110), and (b) controlling the rotational speed of the rotor (110) as a function of the rotor acceleration value. It is further described a control system (150, 250) for controlling the rotational speed of a rotor (110) of a wind turbine (100), a wind turbine (100) being equipped with such a control system (150, 250) and to a computer program, which is adapted for controlling and/or for carrying out the mentioned rotational speed control method.

Rotational speed control of a wind turbine based on rotor acceleration

It is described a method for controlling the rotational speed of a rotor of a wind turbine in particular at high wind speeds. The described method comprises (a) determining a rotor acceleration value, wherein the rotor acceleration value is caused by a temporal change of the rotational speed of the rotor, and (b) controlling the rotational speed of the rotor as a function of the rotor acceleration value. It is further described a control system for controlling the rotational speed of a rotor of a wind turbine, a wind turbine being equipped with such a control system and to a computer program, which is adapted for controlling and/or for carrying out the mentioned rotational speed control method.

Monitoring of blade frequencies of a wind turbine

By the invention one or more bolt gauges (6) each with a built-in load cell (LC, not shown) are positioned on a blade bolt or a bearing bolt between a pitch bearing and a nut and tensioned by the nut at the inside or the outside of a hub of a wind turbine. The bolt gauge then outputs a signal descending both from the tension from the bolt/nut connection and the tension from the blade when the blade is vibrated due to wind forces and the rotation of the blade when the hub of the wind turbine is rotating. Further a severe and alarming change in each blade frequency is monitored as each blade frequency is compared to the other blade frequencies and an alarm is set and/or the wind turbine is stopped if a given level is reached.

Method for wind turbine yaw control

A method for yaw control for a wind turbine (1) comprising a rotor with at least one rotor blade (2), the rotor defining a rotor axis (8) and a rotor plane (6, 7) to which the rotor axis (8) is perpendicular, in which the rotor axis (8) is turned such as to minimise the yaw angle (10) between the ambient wind direction (9) and the rotor axis (8) is provided, wherein the turning of the rotor axis (8) is performed based on the measurement of a wind speed in the rotor plane (15) at at least one rotor blade (2). Furthermore, a wind turbine (1) comprising a rotor which comprises a rotor axis (8) and a rotor plane (6) perpendicular to the rotor axis (8) and an anemometer (3) for measuring the ambient wind speed (9) is provided, which is characterised in that the wind turbine (1) further comprises at least one anemometer (3) which is located such at a rotor blade (2) at a particular distance (4) from the rotor axis (8) as to allow for measuring a wind speed in the rotor plane (6).

Monitoring of Blade Frequencies of a Wind Turbine

One or more bolt gauges each with a built-in load cell are positioned on a blade bolt or a bearing bolt between a pitch bearing and a tightening means and tensioned by the securing means at the inside or the outside of a hub of a wind turbine. The bolt gauge then outputs a signal descending both from the tension from the bolt/securing means connection and the tension from the blade when the blade is vibrated due to wind forces and the rotation of the blade when the hub of the wind turbine is rotating.

Monitoring of blade frequencies of a wind turbine

One or more bolt gauges each with a built-in load cell are positioned on a blade bolt or a bearing bolt between a pitch bearing and a tightening means and tensioned by the securing means at the inside or the outside of a hub of a wind turbine. The bolt gauge then outputs a signal descending both from the tension from the bolt/securing means connection and the tension from the blade when the blade is vibrated due to wind forces and the rotation of the blade when the hub of the wind turbine is rotating.

Monitoring of blade frequencies of a wind turbine

By the invention one or more bolt gauges (6) each with a built-in load cell (LC, not shown) are positioned on a blade bolt or a bearing bolt between a pitch bearing and a nut and tensioned by the nut at the inside or the outside of a hub of a wind turbine. The bolt gauge then outputs a signal descending both from the tension from the bolt/nut connection and the tension from the blade when the blade is vibrated due to wind forces and the rotation of the blade when the hub of the wind turbine is rotating. Further a severe and alarming change in each blade frequency is monitored as each blade frequency is compared to the other blade frequencies and an alarm is set and/or the wind turbine is stopped if a given level is reached.

Rotational Speed Control of a Wind Turbine Based on Rotor Acceleration

It is described a method for controlling the rotational speed of a rotor of a wind turbine in particular at high wind speeds. The described method comprises (a) determining a rotor acceleration value, wherein the rotor acceleration value is caused by a temporal change of the rotational speed of the rotor, and (b) controlling the rotational speed of the rotor as a function of the rotor acceleration value. It is further described a control system for controlling the rotational speed of a rotor of a wind turbine, a wind turbine being equipped with such a control system and to a computer program, which is adapted for controlling and/or for carrying out the mentioned rotational speed control method.

Breakage detection system

Minimising wind turbine generator air gap with a specific shaft bearing arrangement

Generator, preferably for a wind turbine

Direct drive generator and wind turbine

A direct drive generator for a wind turbine is provided. The direct drive generator includes a stator arrangement and a rotor arrangement. The stator arrangement and/or the rotor arrangement include an at least partly flexible front and/or rear endplate. The endplate is at least partly made of fibreglass.

Direct drive generator and wind turbine

Arrangement for a direct drive generator, direct drive generator, wind turbine and method for the assembly of a generator

Manufacturing of segments with special end coils for cross-segment connection

A stator segment for a stator of a ring generator is provided. The stator segment includes a base element and a coil element attached to the base element. The base element includes a connection region, wherein the connection region is adapted for attaching a connecting coil element which connects the stator segment to a further stator segment.

Stator-arrangement

Stator-arrangement for a generator comprising a plurality of stator segments (1) each comprising at least one stator winding (11) adapted to build a ring-shaped stator when assembled, wherein at least one cooling means is provided with each stator segment (1).