Patent application number | Description | Published |
20080276449 | Method for permanent magnet protection - A method for manufacturing of a permanent magnet pole piece comprising at least one magnet which is fixed to a base plate, a protective cover and a filling mass is provided, comprising the steps of fixing of the protective cover to the base plate so that it covers the magnet and so that the protective cover and the base plate are hermetically sealed jointed, evacuating of the interior cavity between the protective cover and the base plate through an opening, injecting of the filling mass through an opening into the interior cavity between the protective cover and the base plate and curing of the filling mass. | 11-13-2008 |
20080277053 | Method for producing fibre reinforced laminated structures - There is described a method of producing fibre reinforced laminated structures by layering a number of dry fibre reinforcement layers by placing them on top of each other in a mould, infusing a curable viscous or liquid polymer into the mould after the fibre reinforcement layers have been layered in the mould and curing the polymer, wherein a flow enhancing layer for enhancing the polymer flow during infusion of the polymer is placed between two fibre reinforcement layers when layering the number of dry fibre reinforcement layers and wherein a pre-cured solid layer is used as the flow enhancing layer. | 11-13-2008 |
20080284252 | Control methods for the synchronization and phase shift of the pulse width modulation (PWM) strategy of power converters - A method of controlling a plurality of power converters | 11-20-2008 |
20080292461 | Actuation system for a wind turbine blade flap - A method of actuating a flap in a wind turbine rotor blade is provided wherein a fluid is used for reversibly expanding an actuating element acting a movable part of the flap by varying the fluid pressure in the actuating element. Further, a wind turbine rotor with a rotor blade comprising a flap and a flap actuating system, where the flap comprises a fixed part that is fixed to the rotor blade and a movable part that is movable relative to the fixed part, is disclosed, in which the flap actuating system comprises an actuating element with a reversible changeable volume located between the movable part of the flap and the fixed part of the flap, a fluid within the actuating element the pressure of which is settable and a pressure setting device which is designed to press fluid into or release fluid from the element as to change its volume. | 11-27-2008 |
20090015020 | Wind turbine, method for mounting a wind turbine and method for adjusting an air gap between a rotor and a stator of a generator of a wind turbine - The invention concerns a wind turbine comprising a bedplate, a main shaft and a direct drive generator comprising a rotor and a stator containing a hollow part like housing substantially arranged around the rotor and containing a first endplate, a second endplate and a casing element connecting the first and the second endplate to each other, wherein the main shaft is pivoted relatively to the bedplate by a first and a second bearing, the first endplate of the stator is supported on the rotor by a third bearing and the second endplate of the stator is at least indirectly attached to the bedplate. The invention concerns moreover a method for the mounting of the wind turbine in particular for the mounting of the direct drive generator and a method for the adjustment of the air gap between the rotor and the stator of the generator of the wind turbine by adjusting at least one arrest and/or adjustment element. | 01-15-2009 |
20090039651 | Method for wind turbine yaw control - A method for yaw control for a wind turbine comprising a rotor with a rotor blade, the rotor defining a rotor axis and a rotor plane to which the rotor axis is perpendicular, in which the rotor axis is turned to minimise the yaw angle between the ambient wind direction and the rotor axis is provided, wherein the turning of the rotor axis is performed based on the measurement of a wind speed in the rotor plane at the rotor blade. Furthermore, a wind turbine which comprises a rotor which includes a rotor axis and a rotor plane perpendicular to the rotor axis and an anemometer for measuring the ambient wind speed is provided. The wind turbine further comprises an anemometer which is located such at a rotor blade at a particular distance from the rotor axis as to allow for measuring a wind speed in the rotor plane. | 02-12-2009 |
20090060740 | Method of operating a wind turbine and wind turbine - The invention concerns a method of operating a wind turbine, wherein for a reduction of a wind load impacting on the wind turbine the rotational speed of the rotor and/or the electrical power output of the wind turbine are reduced depending on a deviation of the wind speed from the average wind speed. Moreover the invention concerns a wind turbine comprising a calculating unit adjusted for executing the inventive method. | 03-05-2009 |
20090129931 | Module of a nacelle of a wind turbine, nacelle of a wind turbine, wind turbineand method for the assembly of a nacelle of a wind turbine - The invention concerns a module of a nacelle of a wind turbine, which is separately designed, manageable and comprise a housing part. The module is connectable to at least one further module of the nacelle, which is also separately designed, manageable and has a housing part, wherein the housing part of the module builds in the assembled status of the nacelle, which comprises several modules, a part of the housing of the nacelle. The invention concerns also a nacelle comprising several such modules, a wind turbine comprising such a nacelle as well as a method for the stepwise assembly of such a nacelle aloft. | 05-21-2009 |
20090134627 | Arrangement for a direct drive generator for a wind turbine and method for the assembly of the generator - The invention concerns an arrangement for a direct drive generator for a wind turbine, which generator comprises a stator with several stator segments each stator segment having at least one stator element for the power generation and which generator comprises a rotor pivotable around a centre axis of the generator and relatively to the stator with several rotor segments each rotor segment having at least one rotor element for the power generation, wherein said arrangement comprises at least one stator segment and at least one rotor segment, and wherein the at least one stator segment and the at least one rotor segment are able to be at least temporarily supported against each other. The invention concerns further a direct drive generator comprising such an arrangement, a wind turbine comprising such a direct drive generator as well as a method for the assembly of the direct drive generator. | 05-28-2009 |
20090134628 | Direct drive generator and wind turbine - The invention concerns a direct drive or directly driven generator for a wind turbine comprising a stator having at least one stator element for power generation and a rotor pivotable around a centre axis of the generator having at least one rotor element for power generation, the generator having an air gap between the stator element and rotor element, wherein the stator comprises a front and a rear ring-shaped supporting element and stator segments being attached to the front and rear ring-shaped supporting elements of the stator, wherein junctions between the front and rear ring-shaped supporting elements of the stator and stator segments are located substantially at a radius in relation to the centre axis of the generator which is smaller than the radius of the air gap between the stator element and rotor element. Furthermore the invention concerns a wind turbine comprising such a direct drive generator. | 05-28-2009 |
20090134629 | Direct drive generator and wind turbine - The invention concerns a direct drive or directly driven generator for a wind turbine comprising a stator and a rotor, wherein the stator comprises a stator ring comprising several ring-segment-shaped stator segments each having at least one stator element for the power generation and wherein the rotor comprises a rotor ring pivotable around a centre axis of the generator, the rotor ring comprises several ring-segment-shaped rotor segments each having at least one rotor element for the power generation. Furthermore the invention concerns a wind turbine comprising such a direct drive generator. | 05-28-2009 |
20090134630 | Wind turbine - The invention concerns a wind turbine comprising a retaining arrangement, a main shaft and a direct drive generator comprising a rotor having a first and a second supporting element and a stator having a first and a second supporting element, wherein the main shaft is pivoted relatively to the retaining arrangement by a first and a second bearing, the first supporting element of the rotor and the main shaft are connected with each other, the first supporting element of the stator is supported on the main shaft and/or on the first supporting element of the rotor by a third bearing, the second supporting element of the stator and the retaining arrangement are connected with each other and the second supporting element of the rotor is supported on the retaining arrangement and/or on the second supporting element of the stator by a fourth bearing. | 05-28-2009 |
20090146426 | Power converters - The present invention provides a power converter that can be used to interface a generator ( | 06-11-2009 |
20090147549 | Power converters - The present invention provides a power converter that can be used to interface a generator ( | 06-11-2009 |
20090180875 | METHOD FOR DETERMINING FATIGUE LOAD OF A WIND TURBINE AND FOR FATIGUE LOAD CONTROL, AND WIND TURBINES THEREFOR - A method of determining fatigue load of at least one operative wind turbine, comprising: providing a transfer function that associates an obtained at least one measurement value of a first sensor to an obtained at least one measurement value of a second sensor the at least one measurement value of the first sensor and the at least one measurement value of the second sensor being obtained by use of a reference wind turbine at which the first sensor and the second sensor are located; obtaining at least one measurement value of a third sensor, wherein the third sensor is located at the at least one operative wind turbine, and wherein the third sensor corresponds in type and position to the first sensor at the reference wind turbine; calculating at least one transfer function value corresponding to the obtained at least one measurement value of the third sensor by use of the provided transfer function; calculating the fatigue load of the at least one operative wind turbine based on the calculated transfer function value. | 07-16-2009 |
20090232429 | Device comprising a support structure and a rotating shaft and wind turbine - A device is provided having a support structure and a rotating shaft having a centre axis which rotating shaft and support structure are pivotable supported against each other by at least one hydrodynamic rotary bearing including a first bearing part and a second bearing part pivotable relatively to each other, a lubricant and a contact zone between the first bearing part and the second bearing part at least when the hydrodynamic rotary bearing is at rest, wherein the rotating shaft and the support structure are shaped in such a way and the hydrodynamic rotary bearing is in such a way arranged on the rotating shaft and the support structure that the contact zone of the hydrodynamic rotary bearing is submerged in the lubricant even when the hydrodynamic rotary bearing is at rest. | 09-17-2009 |
20090250847 | Mould and method for vacuum assisted resin transfer moulding - A mould and method for vacuum assisted resin transfer moulding of a fibre reinforced laminated structure are provided. The mould includes a first mould part and a second mould part. The first mould part defines a negative impression of the laminated structure, being structurally stable and forming a support for fibre reinforcement layers of the laminated structure. The second mould part connectable to the first mould part for closing the mould and defines together with the first mould part an enclosed space which can be evacuated. The mould further includes a flow duct for guiding a liquid polymer which is formed as a recess in the first mould part and/or a recess in the second mould part that is open towards the enclosed space and extends along a section of the periphery of the first mould part and/or the second mould part. | 10-08-2009 |
20090256431 | Stator arrangement, generator and wind turbine - A stator arrangement of a generator for a wind turbine includes a plurality of stator segments substantially forming the stator of the generator. Each stator segment has at least one stator winding and/or a laminate stack of sheets wherein each stator segment is moulded or casted into a material with an electrical insulating property and/or with a non-corroding quality and/or with a heat conductive property. The direct drive generator is also provided having such a stator arrangement and a wind turbine is provided having such a direct drive generator. | 10-15-2009 |
20090256433 | Generator with a stator comprising cooling ducts, and method for cooling a laminated stator of a generator - A generator, for example of a wind turbine, includes two end plates and a plurality of stator laminate plates arranged between the two end plates, is described. Each laminate plate and each end plate comprise a number of cooling holes which are located such that the cooling holes of the laminate plates and the cooling holes of the end plates are aligned with each other to form a number of cooling ducts by the stator material itself. Furthermore, a method for cooling a laminated stator of a generator is described having a cooling fluid guided via a tubing from a cooling fluid reservoir into at least one a partly open cooling duct in the laminated stator. | 10-15-2009 |
20090256442 | Generator and wind turbine - A generator for a wind turbine including a rotor arrangement and a stator arrangement is provided. The rotor arrangement includes a cylinder barrel or a sleeve enclosing a rotor element provided for the production of energy and having an outer cylinder barrel shaped surface in relation to a centre axis of the generator acting as a bearing surface of the rotor arrangement. The stator arrangement includes a cylinder barrel or a sleeve covering a stator element provided for the production of energy and having an inner cylinder barrel shaped surface in relation to the centre axis of the generator acting as a bearing surface of the stator arrangement. The bearing surfaces of the rotor arrangement and the stator arrangement are arranged oppositely to each other with a substantially cylinder barrel shaped air gap in-between, wherein the air gap comprises a lubricant. Also, a wind turbine including a generator is provided. | 10-15-2009 |
20090257873 | Method and apparatus for prediction-based wind turbine control - A method an apparatus of automatically controlling a wind turbine re provided. of: A time-series of measurement values of the aerodynamic flow property of the wind turbine rotor blade is determined; a predictive wind field model representing a structure of a wind field acting on the wind turbine rotor blade is generated based on the time-series of measurement values, and a control value is generated based on the wind-field model. | 10-15-2009 |
20090262331 | Crack detection system - A crack detection system and a method for detecting cracks in a loaded engineering structure are provided. The system and method include a light source coupled and optical fibres that are led through the structure. The optical fibres have diameters below 75 μm. The light source is coupled to the optical fibres. | 10-22-2009 |
20090267419 | METHOD FOR SMOOTHING ALTERNATING ELECTRIC CURRENT FROM A NUMBER OF POWER GENERATING UNITS AND WIND POWER PLANT INCLUDING A NUMBER OF WIND MILLS WITH VARIABLE ROTATIONAL SPEED - A method and a wind power plant are provided for smoothing alternating electric current from a number of power generators. Generators are electrically connected to an electric network. Each power generator includes a transformer with pulse width modulation for converting direct current to pulse width modulated alternating current for feeding to the network. The time for feeding the pulses of the pulse width modulated alternating current is different for each generator in order to achieve a more even alternating current as a sum of respective outputs of alternating current from the generators. | 10-29-2009 |
20090267436 | Method for encapsulating permanent magnets of a rotor of a generator and rotor of a generator - A method is provided for encapsulating permanent magnets of a rotor of a generator. Magnets, which are shorter than a rotor yoke in an axial direction, are placed outside of the yoke leaving a short portion of the yoke free at both ends. Spacers of a non-magnetic material are placed between the magnets. End barriers are placed on the free portions of the yoke. A thin sheet of a non-magnetic material is folded around the magnets and the spacers, covering the entire length of the rotor, including the barriers. An air tight membrane is placed on the outside of the sheet and sealed to the ends of the yoke so that the membrane and the yoke together form an air tight enclosure. A vacuum is applied to the air tight enclosure between the membrane and the yoke. Resin is infused into the air tight enclosure and set. | 10-29-2009 |
20090269557 | METHOD FOR MANUFACTURING OF A FIBRE REINFORCED LAMINATE AND OF A LATERALLY EXTENDED MATERIAL WHICH HAS IN A FIRST LATERAL DIRECTION A GREATER STIFFNESS THAN IN A SECOND LATERAL DIRECTION - A method for manufacturing of a fibre reinforced laminate is provided that includes building up a part of the laminate to a determined thickness using at least one layer of fibre material placing a laterally extended layer on top of the partially completed laminate, the layer having in a first lateral direction a greater stiffness than in a second lateral direction and having in the first lateral direction a greater stiffness than the other layers constituting the laminate, building up a new part of the laminate to a determined thickness, and in case the thickness of the laminate built up pursuant is not as large as a desired thickness of the completed laminate, repeating steps placing a laterally extended layer and the building up a new part until the thickness of the laminate built up is equal to the desired thickness of the completed laminate. | 10-29-2009 |
20090272486 | METHOD OF MANUFACTURING WIND TURBINE BLADES COMPRISING COMPOSITE MATERIALS - Method of manufacturing wind turbine blades having composite materials is provided that includes selecting an outer mould part, selecting an inner mould part, wherein at least a part of the surface of the inner mould part comprises a compressible layer being covered by an airtight membrane, positioning the composite materials in a mould cavity between the outer mould part and the inner mould part, evacuating the mould cavity, and bonding the composite materials, evacuating the compressible layer before positioning the composite materials. | 11-05-2009 |
20100006173 | ARRANGEMENT AND METHOD FOR THE WIND OF A SINGLE-LAYER-COIL - An arrangement includes a coil-winding-tool to guide a metallic conductor for the forming of a part of the single-layer-coil. The coil-winding-tool is mounted to rotate around a first axis of rotation for the forming of the part of the coil. A conductor-feeding-drum carries the metallic conductor and is designed to hand over the metallic-conductor to the coil-winding-tool for forming. The conductor-feeding-drum is carried by a fixture. The fixture is mounted to rotate around a second axis of rotation, to allow a rotation of the conductor-feeding-drum around the second axis too. The first axis of rotation of the coil-winding-tool is perpendicular to the second axis of rotation of the conductor-feeding-drum, to allow the execution of the winding by the rotation of the coil-winding-tool and by the rotation of the conductor-feeding-drum. | 01-14-2010 |
20100008733 | Arrangement for Stabilization of a Floating Foundation - An arrangement for stabilization of a floating foundation, which is arranged to carry a wind-turbine mounted on a tower, is described. The foundation is fixed with a set of mooring cables. First endings of the mooring cables are attached to the foundation at a certain position while second endings of the mooring cables are attached to a floor. There is a second set of mooring-cables, while first endings of the second set of mooring-cables are attached to the foundation near or at its bottom end and while second endings of the second set of mooring-cables are attached to the floor, too. | 01-14-2010 |
20100023266 | Method and Arrangement for the Forecast of Wind-Resources - A method and an arrangement for a forecast of wind-resources of a wind-farm are provided. The forecast is done by a numerical weather-prediction-tool, the weather-prediction-tool using a long-term data-set of meteorological data. The data are related to the location of the wind-farm. A wind-speed measurement is done by a wind-turbine of the wind-farm to do a parameterization of an atmospheric turbulence. The wind-speed measurement is used to generate a data-stream, which is combined with the data-set of the meteorological data to do the forecast. | 01-28-2010 |
20100045047 | Wind Turbine - A wind turbine is provided. The wind turbine includes a direct drive generator with a stator arrangement, a rotor arrangement substantially arranged around the stator arrangement and a longitudinal centre axis. The stator arrangement includes a stator support structure, which includes at least one substantially radial extending stator support element. The stator support element is attached to a substantially parallel to the centre axis extending stationary shaft, is substantially rigid in the radial direction and is at least partially in a certain extent flexible in the directions of the centre axis of the generator. | 02-25-2010 |
20100066096 | STATOR ARRANGEMENT, GENERATOR AND WIND TURBINE - A stator arrangement of an electric machine, generator, and wind turbine includes a plurality of stator segments forming substantially the stator of the electric machine in a cylindric form around a radially centered shaft. The stator arrangement is radially surrounded by a rotatably mounted rotor arrangement. The stator segments are radially mounted on an outer surface of a support structure. The support structure is fixed via rigid connections to the shaft. | 03-18-2010 |
20100066196 | Group of Three Stator Windings for a Stator of an Electric Machine, a Stator Arrangement, a Generator, and Wind Turbine - A group of three stator windings for a stator of an electric machine, a stator arrangement, a generator, and wind turbine are provided. The first winding head segments of the three stator windings differ in form such that the first winding head segments of at least two of the three stator windings are differently tilted in radial direction of the electric machine and the length of the three stator windings is substantially the same. | 03-18-2010 |
20100072854 | STATOR ARRANGEMENT, GENERATOR, WIND TURBINE, AND METHOD FOR POSITIONING A STATOR ARRANGEMENT - A stator arrangement of an electric machine, particularly a generator in a wind turbine is provided. The stator arrangement is radially surrounded by a rotatably mounted rotor arrangement. During normal operation the stator arrangement is non-rotatably connected to a stationary part of the generator. The stator arrangement may be released from the non-rotatable connection to the stationary part of the generator so as to be revolved relative to the stationary part of the generator. A method for positioning such a stator arrangement is also provided | 03-25-2010 |
20100102650 | Arrangement for cooling of an electrical machine - In one aspect, an arrangement is provided. An electrical machine includes elements generating heat while the electrical machine is at work. The elements include at least one fixing-arrangement to support an element-structure. The fixing-arrangement is hollow to carry a cooling fluid which allows a transfer of the heat away from the elements. | 04-29-2010 |
20100102651 | ARRANGEMENT FOR COOLING OF AN ELECTRICAL MACHINE - An arrangement for cooling an electrical machine is provided. A stator of the electrical machine contains a plurality of stacked laminate plates, each laminate plate having a plurality of slots on one side. The slots of the stacked laminate plates are forming channels, the channels containing metal-winding of electrical coils. A metal cooling-pipe is provided within at least one channel for cooling the laminate plates. | 04-29-2010 |
20100187939 | 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. | 07-29-2010 |
20100229373 | Producing Stacked Lamina Elements by Combining a Cut Out and a Stacking Procedure - It is described a method for producing and stacking lamina elements in an aligned manner, in particular lamina elements for a stator of an electrical generator. The method cutting out a first lamina element from a foil, transferring the first lamina element to a container by utilizing the gravitational force, cutting out a second lamina element from the foil or from a further foil, and transferring the second lamina element to the container on top of the first lamina element by utilizing the gravitational force. It is further described a cutting machine for producing lamina elements, a container for stacking lamina elements in an aligned manner and a system for producing and stacking lamina elements in an aligned manner. | 09-16-2010 |
20100250013 | 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. | 09-30-2010 |
20100253272 | Method and Arrangement to Adjust an Air-Gap - The electrical machine includes a movable part and a static part. The movable part rotates in relation to the static part around a dedicated rotary axis. An air-gap is located between the rotating and the static part of the machine. A device is positioned and used to measure the spacing of the air-gap. The static part and/or the movable part is coupled with an actuating-unit, which changes the relative position of the static part in relation to the movable part to adjust the spacing of the air-gap. | 10-07-2010 |
20100253569 | Method and arrangement to measure the deflection of a wind turbine blade - A method and arrangement to measure the deflection of a blade of a wind-turbine are provided. 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. | 10-07-2010 |
20100329415 | Method to inspect a blade - A method of inspecting a quality of a blade, especially of a wind-turbine-blade, is provided. At least parts of the blade are inspected by a computer-tomography-method using radiation. The radiation is directed through the blade for the inspection. A transmitter sends the radiation through the blade. A receiver receives the sent radiation after its passing through the blade. The position of the transmitter, of the receiver and/or of the blade is changed in relation to each other in order to perform the inspection of the blade. | 12-30-2010 |
20100329842 | Arrangement and method to control the yawing of a wind turbine - A wind turbine and a method of controlling yawing of a wind turbine are provided. A nacelle is mounted rotatable around a first axis by an adjustable yaw angle and a hub is mounted rotatable around a rotational axis. The hub includes a blade rotating around the rotational axis, the blade defining a rotor plane perpendicular to the rotational axis. A channel of the wind turbine has an opening, the opening being located at a predefined distance to the rotor plane. At least one component of incoming wind is guided through the opening and into the channel as air flow. A measuring device is provided for measuring the air flow, the measuring device being connected to a controller. The controller detects a yaw angle error between a direction of the incoming wind and the rotational axis, the yaw angle error being used to adjust the yaw angle of the nacelle. | 12-30-2010 |
20110037190 | Method to manufacture at least a component of a blade of a wind-turbine - A method, machine and blade of a wind-turbine are disclosed. At least a component of a blade includes at least one layer of a composite structure. The layer is built up by a number of unconnected single roving-bundles, which are aligned unidirectional and which shows a common direction. The roving-bundles are laid down automatically into a fanning tool. | 02-17-2011 |
20110037191 | Method and Arrangement to Produce a Wind-Turbine-Blade - A method and arrangement to produce a wind-turbine-blade are disclosed. A bottom layer is laid down into a forming tool. The bottom layer is used as a base of a pile. A predefined number of additional layers is stacked vertically on top of the basis to form the pile, while the pile is used as a separate module for the production of the blade. The bottom layer is made of a nearly airtight material, to prevent that surrounding air is allowed to flow vertically through the pile. An extraction of air is applied by a machine to a topmost layer of the pile in a way that the pile is sucked towards the machine. This allows to lift up the pile and to bring it into a mould for the further production of the blade. | 02-17-2011 |
20110062719 | 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. | 03-17-2011 |
20110080001 | Method for controlling a wind turbine at high thermal loads - A method of controlling a temperature of a component of a wind turbine is disclosed. A set point temperature of the component is defined. The actual temperature of the component is determined and compared with the defined set point temperature. The actual temperature of the component is controlled by controlling the output power of the wind turbine based on the result of comparison. | 04-07-2011 |
20110101700 | Arrangement for Cooling of an Electrical Machine - An arrangement for cooling of an electrical machine is disclosed. The electrical machine includes a stator-arrangement and a rotor-arrangement. The stator-arrangement is mounted on an outer surface of a support-structure. At least one cooling channel is arranged between the stator-arrangement and the support-structure in a way that the cooling-channel is pressed between the stator-arrangement and the support structure. | 05-05-2011 |
20110109086 | Wind Energy Installation and Method of Controlling the Output Power from a Wind Energy Installation - A wind energy installation and a method of controlling the output power from a wind energy installation to an electrical grid with a specified nominal grid frequency are provided, in which the output power is controlled as a function of the time derivative of the grid frequency. | 05-12-2011 |
20110109095 | ARRANGEMENT FOR COOLING OF AN ELECTRICAL GENERATOR - The arrangement directed to a generator, which contains a rotor and a stator us disclosed. The stator contains at least two stator segments. At least one of the stator segments contains a number of stacked laminate plates. The stacked laminate plates contain a number of slots at a first side, while the first side of the stacked laminate plates is aligned to the rotor. The slots support a metal-winding of a stator coil. At least one hollow cooling-pipe is partly integrated into the stacked laminate plates of the stator segment to cool its laminate plates by a cooling-medium, which is located into the cooling-pipes. | 05-12-2011 |
20110109099 | Wind Turbine - A wind turbine which includes a direct drive generator is disclosed. The direct drive generator includes an inner stator arrangement and an outer rotor arrangement and a stationary shaft with a centre axis. The stator arrangement is arranged on the outside of the stationary shaft, the rotor arrangement is substantially arranged around the stator arrangement, on the front side at least indirectly supported or arranged on the stationary shaft by a main bearing and on the rear side at least indirectly supported or arranged on the stationary shaft by a support bearing. The main bearing and/or the support bearing is a four-point bearing. | 05-12-2011 |
20110113708 | METHOD FOR THE ASSEMBLY OF A TOWER AND TOWER - A number of pre-casted elements are stacked vertically to build the tower, while parts of the elements are forming the tower wall. Each element of the tower is fixed on its position and is connected with a tower foundation by a number of assigned post-tensioned cables. These cables are running inside the tower and they are pulled through the tower without embedding in dedicated channels. The post-tensioned-cables are fixed at certain points with the tower wall via damper-means to prevent their oscillation. | 05-19-2011 |
20110115234 | Wind Turbine - A wind turbine is disclosed. The wind turbine includes a direct drive generator, which includes an inner stator arrangement and an outer rotor arrangement, a stationary outer shaft and a rotatable inner shaft having a centre axis. At least two main bearings support the rotatable inner shaft inside the stationary outer shaft. The stator arrangement is arranged on the outside of the stationary outer shaft. The rotor arrangement is substantially arranged around the stator arrangement on the front side at least indirectly attached to the rotatable inner shaft and/or to the hub of the wind turbine. | 05-19-2011 |
20110123331 | Wind speed dependent adaptation of a set point for a fatigue life of a structural component of a wind turbine - A method for controlling an operation of a wind turbine with at least one structural component is provided. A fatigue life time consumption of the structural component is scheduled. A current velocity of a wind which is driving the wind turbine is determined. A current set point value for the fatigue life time consumption of the structural component based on the scheduled fatigue life time consumption of the structural component is specified and a maximum set point value for the fatigue life time consumption of the structural component based on the determined current wind velocity is specified. The wind turbine is operated depending on the specified current set point value and/or on the specified maximum set point value such that a mechanical load acting on the structural component is controlled. A machine load control system and a wind turbine are also provided. | 05-26-2011 |
20110126481 | CONCRETE TOWER - A concrete tower is provided. The concrete tower may be a concrete tower for a wind turbine. The compressive strength of the concrete is changed in dependency of the height of the tower. The concrete tower includes a number of tendons that are arranged to pre-stress the concrete tower. Each tendon is anchored with the concrete tower at a first end of the tendon and at a second end of the tendon. | 06-02-2011 |
20110133479 | Arrangement to ensure an air gap in an electric machine - An arrangement to set up and to ensure an air gap in an electrical machine, like a generator, is provided. The electrical machine includes a stator arrangement and a rotor arrangement. The rotor-arrangement rotates around a longitudinal axis. At least parts of the rotor arrangement interact with parts of the stator arrangement to generate electrical power. An air gap is defined by the 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. The cross-section of the air gap changes along the certain length, so that the air gap is not uniform in view to the referred certain length. | 06-09-2011 |
20110133586 | Arrangement to Compensate a Non-Uniform Air Gap of an Electric Machine - An arrangement to compensate a non-uniform air gap, which is located in an electric machine is provided. The electrical machine includes a stator arrangement and a rotor arrangement. The rotor arrangement rotates around a longitudinal axis. At least parts of the rotor arrangement interact with parts of the stator arrangement to generate electrical power. The air gap is defined by the 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. The cross section of the air gap changes along this length thus the air gap is not uniform in view to the referred certain length. The flux density of magnets, which are part of the rotor arrangement, is changed in dependency to the cross section of the air-gap. | 06-09-2011 |
20110176904 | Method of transportation for wind turbine tower - A method and an arrangement for transporting a wind turbine tower are provided. A longitudinal axis of a tower segment is substantially aligned horizontally during the transportation. The tower segment is deformed in a cross section during the transportation by a force which is applied to a wall of the tower segment. | 07-21-2011 |
20110210464 | Mould and method for vacuum assisted resin transfer moulding - A mould and method for vacuum assisted resin transfer moulding of a fibre reinforced laminated structure are provided. The mould includes a first mould part and a second mould part. The first mould part defines a negative impression of the laminated structure, being structurally stable and forming a support for fibre reinforcement layers of the laminated structure. The second mould part connectable to the first mould part for closing the mould and defines together with the first mould part an enclosed space which can be evacuated. The mould further includes a flow duct for guiding a liquid polymer which is formed as a recess in the first mould part and/or a recess in the second mould part that is open towards the enclosed space and extends along a section of the periphery of the first mould part and/or the second mould part. | 09-01-2011 |
20110210558 | Stator for an energy converting apparatus and energy converting apparatus using the same - It is described a stator for an energy converting apparatus, the stator comprising the stator including a support structure having an annular shape around an axial direction; a first protrusion coupled to the support structure and extending radially from the support structure; a second protrusion coupled to the support structure and extending radially from the support structure, the second protrusion being spaced apart from the first protrusion in a circumferential direction; and a first wire arranged between the first protrusion and the second protrusion in a plurality of first radial layers located at different radial positions and configured such that a circumferential extent of a cross-sectional area of the first wire increases radially outwards. Further is described an energy converting apparatus including the stator, and a wind turbine including the energy converging apparatus. | 09-01-2011 |
20110219771 | ENERGY TRANSFER SYSTEM COMPRISING A PHASE CHANGE MATERIAL - An energy transfer system for absorbing, temporarily storing and releasing energy is disclosed. The described energy transfer system comprises (a) a first container containing a Phase Change Material, (b) a heat generation element, which is connectable to an external energy source and which is capable of charging the Phase Change Material with thermal energy, wherein energy provided by the external energy source is used, and a heat extraction element, which is connectable to an external heat engine and which is capable of extracting thermal energy from the Phase Change Material, wherein the external heat engine is capable of converting the extracted thermal energy into electric energy. It is further described an energy transfer arrangement comprising two of such energy transfer systems, and a method for absorbing, temporarily storing and releasing energy. | 09-15-2011 |
20110221194 | 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. | 09-15-2011 |
20110223028 | Arrangement and method to retrofit a wind turbine - A blade of the wind turbine is prepared to be connected with the hub of the wind turbine. An extension unit is designed and prepared to elongate the blade. The extension unit is connected with the tip of the blade by a pressure, which is applied between the tip of the blade and the extension unit. The applied pressure is a low-pressure in relation to the ambient barometric pressure. | 09-15-2011 |
20110223272 | APPARATUS FOR SLIPFORM CASTING - Apparatus for slipform casting particularly of a moulded concrete structure including a slipform yoke having at least one pair of yoke legs in opposite disposal, at least one pair of form halves connected to the yoke legs between which form halves concrete is poured and at least one jack pipe interacting with the yoke, wherein the jack pipe is hollow. | 09-15-2011 |
20110233938 | Stator arrangement for an electromechanical transducer, electromechanical transducer and wind turbine - A stator arrangement for an electromechanical transducer is provided. The stator arrangement includes a base structure, a coil holder, a coil mounted at the coil holder; and a flexible element connecting the base structure to the coil holder flexibly relative to each other. Further, an electromechanical transducer is provided that includes the above-mentioned stator arrangement and a rotor arrangement rotatable relative to the base structure around an axial direction. Still, further, a wind turbine is provided that includes the above-mentioned electromechanical transducer as a generator. | 09-29-2011 |
20110234008 | Method for Smoothing Alternating Electric Current From a Number of Power Generating Units and Wind Power Plant Including a Number of Wind Mills with Variable Rotational Speed - A method and a wind power plant are provided for smoothing alternating electric current from a number of power generators are provided. Generators are electrically connected to an electric network. Each power generator includes a transformer with pulse width modulation for converting direct current to pulse width modulated alternating current for feeding to the network. The time for feeding the pulses of the pulse width modulated alternating current is different for each generator in order to achieve a more even alternating current as a sum of respective outputs of alternating current from the generators. | 09-29-2011 |
20110239586 | Wind Turbine Installation - A wind turbine installation is provided. The installation includes a wind turbine tower or tower section, a receiving part of a wind turbine foundation installation, connection means suitable for connecting the wind turbine tower or tower section to the receiving part, whereby a lower end of the wind turbine tower or the tower section is flange-less. | 10-06-2011 |
20110247196 | Method and apparatus for manufacturing a rotor - A method and apparatus for manufacturing a rotor are provided. The rotor is particular a rotor yoke for a wind turbine generator. A hollow rolled metal cylinder is provided and plastically deformed permanently to a predetermined shape and a predetermined size. The apparatus includes a pressing unit and a mould element. | 10-13-2011 |
20110248507 | Stator-arrangement - A stator-arrangement for a generator is disclosed. The stator arrangement includes a plurality of stator segments. Each of the plurality of stator segments includes at least one stator winding and is adapted to build a ring-shaped stator when assembled. At least one cooling means is provided with each of the plurality of stator segments. | 10-13-2011 |
20110271519 | Method for manufacturing a rotor for a generator - A method for manufacturing a rotor for a generator is provided. In accordance with this method, a metal plate is rolled to a circumferentially open circular cylinder having two free ends, the circumferentially open cylinder having an inner diameter smaller than a desired end inner diameter of the rotor. The two free ends of the rolled metal plate are then welded to form a closed cylinder. The closed cylinder is rolled to obtain the desired end diameter of the rotor. | 11-10-2011 |
20110272950 | GENERATOR WITH A SEGMENTED STATOR - A generator, a stator segment and a wind turbine are provided. The generator has a rotor and a stator. The stator includes stator segments attached to a circular holding structure. A stator segment has at least one first connection element being in engagement with at least one second connection element of the holding structure. The engagement is detachable in an axial direction and not detachable in a radial and a circumferential direction. | 11-10-2011 |
20110274553 | Method for Manufacturing a Wind Turbine Rotor Blade and Wind Turbine Rotor Blade - A method for manufacturing a wind turbine rotor blade is described. Composite material is placed around a moulding core arrangement. The moulding core arrangement includes a first moulding core and a second moulding core. The composite material is set forming a wind turbine rotor blade. The wind turbine rotor blade includes a root portion and a shoulder portion. The first moulding core is removed from the wind turbine rotor blade through an opening at the root portion. The second moulding core is removed from the wind turbine rotor blade through an opening at the shoulder portion. | 11-10-2011 |
20110280722 | 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. | 11-17-2011 |
20110285140 | Generator with single turn wave winding and wind turbine - A generator is provided that includes at least one pole set representing one phase. Each pole set includes a plurality of poles. At least one conductor is turned about the poles of a particular pole set such that only half a single turn is associated to each pole of the particular pole set. | 11-24-2011 |
20110285141 | GENERATOR WITH ALUMINUM WINDING AND WIND TURBINE - A generator is provided that includes at least one conductor. The conductor is made up of aluminium. In a preferred embodiment, the generator includes at least one pole set representing one phase, each pole set having a plurality of poles, and the at least one conductor is turned about the poles of a particular pole set such that only half a single turn is associated to each pole of the particular pole set. | 11-24-2011 |
20110285142 | Generator with Single Turn Wave Winding, Wind Turbine and Method for Determining the Thickness of the Slot Insulation of a Generator - A generator is provided that includes at least one pole set representing one phase. Each pole set includes a plurality of poles and each pole including a plurality of slots. A plurality of conductors are assembled such that each conductor is turned about the poles of a particular pole set in a manner that only half a single turn is associated to each pole of the particular pole set. Each pole is provided with a slot insulation between the pole and the associated conductors. The slot insulation has a different thickness for at least two different poles of the same pole set. | 11-24-2011 |
20110304237 | STATOR SEGMENT UNIT ADAPTED TO BUILD A RING-SHAPED STATOR WHEN ASSEMBLED - A stator segment unit adapted to build a ring-shaped stator when assembled is provided. The stator segment unit includes a stator yoke with at least one stator tooth protruding from the yoke, at least one stator winding having a first winding section fixed close to the tooth, and a second winding section extending freely from the stator segment unit. | 12-15-2011 |
20110305574 | Rotor Blade Assembly - A rotor blade assembly is provided that includes a rotor blade and a rotor blade tip member. The rotor blade is provided with an integrated lightning down conductor and is attachable or attached to a rotor hub of a wind turbine. The rotor blade tip member is made of an electrically insulating material and is detachably attached or adapted to be detachably attached to a free ending of the rotor blade by a connecting device. The connecting device is a wire or a rod made of an electrically conductive material establishing or adapted to establish a mechanical and electrical connection of the rotor blade tip member with the lightning down conductor of the rotor blade. | 12-15-2011 |
20110316287 | 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 | 12-29-2011 |
20110318186 | Root-End of a Wind Turbine Blade - The root-end of a blade of a wind turbine contains at least two segments. The segments contain a connection mechanism for their connection to build up the root-end. The segments contain a first segment section, which is prepared for a connection with fiber reinforced components of the blade. The segments contain a second segment section, which is prepared for a connection with a hub of a wind turbine or which is prepared for a connection with pitch-components of a wind turbine. | 12-29-2011 |
20120019088 | Permanent magnet rotor arrangement and method for producing such an arrangement - A permanent magnet rotor arrangement is provided. The arrangement includes a rotor, a plurality of nonmagnetic profiled tubes defining a closed channel and affixed circumferentially along the outer rim of the rotor, and a plurality of permanent magnet pole pieces arranged in the channels. In a preferred embodiment, the tubes are monolithic and one pole piece is arranged in every channel. | 01-26-2012 |
20120073104 | 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. | 03-29-2012 |
20120076655 | 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. | 03-29-2012 |
20120080969 | ROTOR, GENERATOR AND WIND TURBINE - A rotor for a generator of e.g. a wind turbine is disclosed. The rotor includes an axis of rotation, a circular rotor body and a circular stabilization structure. The circular stabilization structure is arranged at a face side of the circular rotor body. The stabilization structure includes a brake disc. | 04-05-2012 |
20120112569 | 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. | 05-10-2012 |
20120112572 | 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. | 05-10-2012 |
20120133211 | Control Methods for the Synchronization and Phase Shift of the Pulse Width Modulation (PWM) Strategy of Power Converters - A method of controlling a plurality of power converters | 05-31-2012 |
20120141317 | 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. | 06-07-2012 |
20120156053 | Wind turbine, method of control of a wind turbine and air-conditioning system - A wind turbine having an air-conditioning system is provided. The air-conditioning system controls the climatization of the interior of the nacelle of the wind turbine. The air conditioning system includes at least on air inlet for ventilating the interior with air intake from outside of the wind turbine. The air-conditioning system also includes a heater for heating the air intake. | 06-21-2012 |
20120169058 | 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. | 07-05-2012 |
20120175949 | 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. | 07-12-2012 |
20120181724 | 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. | 07-19-2012 |
20120200444 | Arrangement to measure the deflection of an object - A reflector is arranged at a first position, which is assigned to a first end of the object. An antenna-system is arranged at a second position, which is assigned to a second end of the object. The antenna system contains a transmit antenna and a receive antenna, while the reflector and the antenna-system are coupled by a radio signal. The radio signal is sent from the transmit antenna via the reflector towards the receive antenna. The receive antenna is connected with an evaluation unit, which is prepared to measure the deflection between the first end of the object and the second end of the object based on the received radio signal. | 08-09-2012 |
20120217752 | 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. | 08-30-2012 |
20120229239 | Layered magnet - A layered magnet for a magnet arrangement of an electrical machine includes a number of primary magnet layers and a number of subordinate magnet layers, wherein each magnet layer includes a ferromagnet with a layer concentration of a lanthanide, and wherein the layer concentration of the lanthanide is greatest in a primary magnet layer. Further, a method of manufacturing such a layered magnet and an electrical machine with a magnet arrangement are provided. | 09-13-2012 |
20120263544 | 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. | 10-18-2012 |
20120263545 | 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. | 10-18-2012 |
20120286597 | Stator arrangement - A stator arrangement for an electric machine is provided. The stator arrangement includes a stator having a stator yoke with a number of stator slots, with each stator slot accommodating at least one set of stator windings and at least one cooling device in the shape of a duct-like pipe. The duct-like pipe is divided in two or more separate cooling channels. | 11-15-2012 |
20120312469 | 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. | 12-13-2012 |
20120326545 | 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. | 12-27-2012 |
20130001946 | METHOD AND CONTROLLER FOR CONTROLLING AN ELECTRIC POWER PRODUCTION UNIT, IN PARTICULAR A WIND TURBINE - A method for controlling an electric power production unit, in particular a wind turbine, connected to a utility grid, includes obtaining information regarding an event at a point in time, wherein the event relates to at least one of electric power delivered to the utility grid and electric power extracted from the utility grid at the point in time, and automatically adapting, before the point in time, a power transfer between the power production unit and the utility grid based on the information. Further a corresponding controller and a wind park are described. | 01-03-2013 |
20130017089 | DOUBLE ROW TAPERED BEARING ASSEMBLY AND WIND TURBINEAANM Stiesdal; HenrikAACI Odense CAACO DKAAGP Stiesdal; Henrik Odense C DK - 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. | 01-17-2013 |
20130022465 | 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. | 01-24-2013 |
20130050400 | 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. | 02-28-2013 |
20130056169 | 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. | 03-07-2013 |
20130058708 | 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. | 03-07-2013 |
20130064678 | 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. | 03-14-2013 |
20130068445 | 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. | 03-21-2013 |
20130069373 | 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. | 03-21-2013 |
20130084177 | 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. | 04-04-2013 |
20130104549 | THERMAL ENERGY STORAGE AND RECOVERY WITH A HEAT EXCHANGER ARRANGEMENT HAVING AN EXTENDED THERMAL INTERACTION REGION | 05-02-2013 |
20130111903 | 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. | 05-09-2013 |
20130111904 | 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. | 05-09-2013 |
20130125546 | 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. | 05-23-2013 |
20130177445 | 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. | 07-11-2013 |
20130199043 | 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. | 08-08-2013 |
20130243595 | 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. | 09-19-2013 |
20130249341 | 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. | 09-26-2013 |
20130272876 | 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. | 10-17-2013 |
20130320682 | 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. | 12-05-2013 |
20130320794 | 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. | 12-05-2013 |
20140017090 | 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. | 01-16-2014 |
20140050555 | 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. | 02-20-2014 |
20140077651 | 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. | 03-20-2014 |
20140137507 | 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. | 05-22-2014 |
20140259647 | 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. | 09-18-2014 |
20140284021 | 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. | 09-25-2014 |
20140314580 | 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. | 10-23-2014 |
20140338329 | 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. | 11-20-2014 |
20140352295 | 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. | 12-04-2014 |
20150059342 | 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. | 03-05-2015 |
20150075210 | 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. | 03-19-2015 |