DRIVE TRAIN OF A WIND TURBINE COMPRISING A COUPLING SHAFT FOR COMPENSATING CONCENTRICITY TOLERANCES AND MISALIGNMENT OF A GEARBOX OUTPUT AXIS AND A GENERATOR TURNING AXIS
Drive train of a wind turbine comprising a coupling shaft for compensating concentricity tolerances and misalignment of a gearbox output axis and a generator turning axis Provided is a drive train of a wind turbine. The drive train comprises a main shaft assembly, a planetary gearbox, and a generator. The planetary gearbox comprises an output shaft. The generator comprises a torque shaft, and the drive train further comprises a coupling shaft having a first articulated joint that is coupled to the output shaft and a second articulated joint that is coupled to the torque shaft. The first and second articulated joints are configured to compensate concentricity tolerances and a misalignment between the out-put shaft and the torque shaft. The coupling shaft is a floating shaft having a translational degree of freedom in axial direction. The drive train comprises a first and a second mechanical stop for limiting a resulting freedom of movement of the coupling shaft in axial direction to a predetermined range of motion. Further provided are a wind turbine, and a wind park.
F16D 1/112 - Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling the interengaging parts comprising torque-transmitting surfaces, e.g. bayonet joints
F16D 3/06 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
2.
Drive train of a wind turbine comprising a torque limiter, wind turbine
Provided is a drive train of a wind turbine. The drive train includes a torque limiter assembly including a torque limiter. The torque limiter includes: a first clamping disk, a friction disk, a second clamping disk, and a preloading means. The clamping disks and the friction disk are configured such that the clamping disks frictionally transmit a torque to the friction disk. The torque limiter assembly further includes a torque shaft and a hub shaft. The torque shaft is connected to a rotor of the wind turbine, and the hub shaft is connected to a generator rotor of a generator. The friction disk is bolted to the hub shaft via interface bolts from a downwind side, such that the torque limiter is detachable from the hub shaft as a whole. Further provided is a wind turbine.
F16D 43/21 - Internally controlled automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
F03D 9/25 - Wind motors characterised by the driven apparatus the apparatus being an electrical generator
F16D 7/02 - Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
A lubrication system for a drive train of a wind turbine includes an oil reservoir having an outlet, a supply valve, a gearbox having an oil inlet and oil outlet, a drain valve and a siphon is provided. The oil reservoir is coupled to the supply valve and the supply valve is coupled to the inlet of the gearbox. The oil outlet of the gearbox is coupled to the drain valve and to a first end of the siphon. The supply valve is configured to open in an off-grid state of the wind turbine and the drain valve is configured to close in the off-grid state of the wind turbine. The siphon is configured to adjust an internal oil level in the gearbox in the off-grid state of the wind turbine.
Provided is a rotor locking system for a rotor hub of a wind driven power plant, including a rotor locking disk, a rotor locking pin unit, and a rotor locking pin, wherein the rotor locking disk is mounted to the rotor hub, wherein the rotor locking pin is an actuated element of the rotor locking pin unit, wherein the rotor locking pin is configured to assume a first position The rotor locking pin is configured to assume a second position in which the rotor locking pin extends into a recess of the rotor locking disk such that a rotation of the rotor hub is preventable, and wherein the rotor locking pin is lockable.
Provided is a lubrication system for a drive train of a wind turbine including a main oil tank including a lubrication liquid, for lubricating the drive train when the wind turbine has connection to a grid and a main reservoir which is separate from the main oil tank and contains lubrication liquid for the drive train when the wind turbine has no connection to the grid. The main reservoir includes a first reservoir containing a first amount of lubrication liquid for at least a first component of the drive train and a second reservoir including a second amount of lubrication liquid for at least a second component of the drive train. The lubrication system is configured to supply the oil from the main reservoir to the drive train when the wind turbine has no grid connection for creating an oil sump in at least the second component of the drive train.
A lubrication system for a drive train of a wind turbine including a gearbox is provided. The gearbox has a first stage with a first internal oil level and a second stage with a second internal oil level. The second internal oil level is at a geodetic higher level than the first internal oil level. The gearbox further includes a supply passage for supplying oil from the first stage to the second stage of the gearbox.
Provided is a nacelle for a wind driven power plant, the nacelle including a nacelle bottom cover, wherein the nacelle bottom cover includes two or more segments, each of the segments being configured to contain a respective predefined maximum volume of a liquid in a receptacle in a case of leakage, and wherein the respective receptacles are configured to collectively contain a total volume that corresponds to a total amount of liquids in the wind driven power plant, in particular a total amount of lubricating oils and/or cooling liquids in the wind driven power plant. Also provided is a wind driven power plant including the nacelle and a wind park including a plurality of the wind driven power plants.
Provided is a helicopter hoisting platform for a nacelle of a wind driven power plant, wherein the helicopter hoisting platform includes a detachable portion that is configured to be detached and removed from a permanent portion of the helicopter hoisting platform. Also provided is a wind drive power plant including a nacelle and the helicopter hoisting platform.
The invention relates to a wind driven power plant comprising a nacelle having a nacelle cover and a helicopter hoisting platform, the nacelle further comprising a hatch extension and a hatch cover, the hatch extension being arranged between the nacelle cover and the hatch cover, wherein the hatch extension has a channel-like shape, wherein the hatch cover is mounted on top of the hatch extension, and wherein a the hatch extension provides a distance between the hatch cover and the nacelle cover.
B60P 1/54 - Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading using cranes for self-loading or self-unloading
10.
Method of operating a wind turbine without grid connection and wind turbine
A wind turbine comprises a permanent magnet synchronous generator, a main converter, a main converter controller, a wind turbine master controller and an electrical power supply stage comprising an electrical energy storing device. A startup of the wind turbine can be performed using electrical energy from the electrical energy storing device independent from a power supplying grid and/or a combustion engine. After startup, the wind turbine can be operated in an island mode by controlling an intermediate voltage of the main converter by the main converter controller and retrieving power from the synchronous generator independent from the electrical energy storing device.
Methods and devices for accessing a drive train for a wind turbine utilize an elastic coupling. The drive train comprises a rotor shaft configured to be driven by a rotor about a main axis and a support structure including a bearing housing surrounding at least one bearing and supporting the rotor shaft for rotation about the main axis to constrain other movements of the rotor shaft. A gearbox input shaft and housing supports the gearbox input shaft for rotation while constraining other movements of the gearbox input shaft. The gearbox input shaft is coupled to the rotor shaft by an elastic coupling comprising a first coupling part rigidly connected with the rotor shaft, a second coupling part rigidly connected with the gearbox input shaft, and elastic elements positioned between the first and second coupling part to provide a single joint between the rotor shaft and the gearbox input shaft.
F03D 9/00 - Adaptations of wind motors for special useCombinations of wind motors with apparatus driven therebyWind motors specially adapted for installation in particular locations
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
A drive train for a wind turbine includes a rotor shaft configured to be driven by a rotor about a main axis, and a support structure including a bearing housing surrounding at least one bearing and supporting the rotor shaft for rotation about the main axis to constrain other movements of the rotor shaft. A gearbox input shaft and housing supports the gearbox input shaft for rotation while constraining other movements of the gearbox input shaft. The gearbox input shaft is coupled to the rotor shaft by an elastic coupling comprising a first coupling part rigidly connected with the rotor shaft, a second coupling part rigidly connected with the gearbox input shaft, and elastic elements positioned between the first and the second coupling part to provide a single joint between the rotor shaft and the gearbox input shaft.
Methods and devices for monitoring a drive train for a wind turbine utilize an elastic coupling. The drive train comprises a rotor shaft configured to be driven by a rotor about a main axis, a support structure including a bearing housing surrounding at least one bearing and supporting the rotor shaft for rotation about the main axis to constrain other movements of the rotor shaft. A gearbox input shaft and housing supports the gearbox input shaft for rotation while constraining other movements of the gearbox input shaft. The gearbox input shaft is coupled to the rotor shaft by an elastic coupling that includes a first coupling part rigidly connected with the rotor shaft, a second coupling part rigidly connected with the gearbox input shaft, and elastic elements positioned between the first and the second coupling part to provide a single joint between the rotor shaft and the gearbox input shaft.
F16D 3/58 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive with the coupling parts connected by one or more intermediate members comprising elastic metal lamellae, elastic rods, or the like, e.g. arranged radially or parallel to the axis, the members being shear-loaded collectively by the total load the intermediate members being made of rubber or like material
F16D 3/80 - Yielding couplings, i.e. with means permitting movement between the connected parts during the drive in which a fluid is used
F16D 66/00 - Arrangements for monitoring working conditions of brakes, e.g. wear or temperature
14.
LUBRICATION SYSTEM FOR A DRIVE TRAIN OF A WIND TURBINE, WIND TURBINE AND METHOD OF LUBRICATING
A lubrication system for a drive train of a wind turbine comprises a main oil tank (201) containing a lubrication liquid, in particular oil, for lubricating the drive train when the wind turbine has connection to a grid and a main reservoir (204) which is separate from the main oil tank (201) and contains lubrication liquid for the drive train when the wind turbine (10) has no connection to the grid. The main reservoir (204) comprises a first reservoir (214) containing a first amount of lubrication liquid for at least a first component of the drive train and a second reservoir (224) containing a second amount of lubrication liquid for at least a second component of the drive train. The first component is different from the second component. The lubrication system is configured to supply the oil from the main reservoir (204) to the drive train when the wind turbine has no grid connection for creating an oil sump in at least the second component of the drive train (100). Furthermore, a wind turbine comprising such a drive train and a method of lubricating a drive train of a wind turbine are suggested.
A lubrication system for a drive train of a wind turbine comprises a gearbox (103). The gearbox (103) has a first stage (110) with a first internal oil level (122) and a second stage (112) with a second internal oil level (126). The second internal oil level (126) is at a geodetic higher level than the first internal oil level (122). The gearbox (103) further comprises a supply passage (128) for supplying oil from the first stage (110) to the second stage (112) of the gearbox (103).
A lubrication system for a drive train of a wind turbine comprises an oil reservoir (204) having an outlet (306), a supply valve (V3), a gearbox (103) having an oil inlet (308) and oil outlet (310), a drain valve (V1, V2) and a siphon (500). The oil reservoir (204) is coupled to the supply valve (V3) and the supply valve (V3) is coupled to the inlet (308) of the gearbox (103). The oil outlet (310) of the gearbox (103) is coupled to the drain valve (V1, V2) and to a first end of the siphon (500). The supply valve (V3) is configured to open in an off-grid state of the wind turbine and the drain valve (V1, V2) is configured to close in the off-grid state of the wind turbine. The siphon (500) is configured to adjust an internal oil level in the gearbox (103) in the off-grid state of the wind turbine.
A rotor locking system for a rotor hub of a wind driven power plant is provided, comprising a rotor locking disk, a rotor locking pin unit, and a rotor locking pin, wherein the rotor locking disk is mounted to the rotor hub, wherein the rotor locking pin is an actuated element of the rotor locking pin unit, wherein the rotor locking pin is configured to assume a first position, wherein the rotor locking pin is configured to assume a second position in which the rotor locking pin extends into a recess of the rotor locking disk such that a rotation of the rotor hub is preventable, and wherein the rotor locking pin is lockable.
The present invention relates to a nacelle (2) for a wind turbine (1), the nacelle (2) comprising an support frame (15) and a nacelle cover (6) coupled to the support frame (15), wherein the nacelle cover (6) comprises a self-supported nacelle roof (6, 7) comprising a plurality of panels (100, 133, 136, 234, 247, 34, 43, 47) made of a composite, the panels (100, 133, 136, 234, 247, 34, 43, 47) being connected to each other by means of connection flanges (37) integral to the panels (100, 133, 136, 234, 247, 34, 43, 47), wherein the self-supported nacelle roof (6, 7) extends, while being unsupported by the support frame (15) at least in a center section (46) of the self supported roof (7), from a first lateral side (243) of the nacelle (2) to a second lateral side (243) of the nacelle (2). The invention further relates to a wind turbine (1) comprising the nacelle (2), a wind park comprising a plurality of wind turbines and methods.
The invention relates to a spinner for a rotor hub of a wind turbine, the spinner comprising a plurality of composite panels, at least one of the panels is a middle panel comprising an outer wall and a first side wall, the first side wall extending substantially perpendicularly from the outer wall towards a center of the rotor hub, and wherein the first side wall is partially configured as a first composite flange area and partially configured as an internal gangway.
The invention relates to a nacelle comprising a nacelle cover and a support frame, the support frame comprising an extension arm, the extension arm being configured to be coupled to a tag line for guiding the nacelle when the nacelle is lifted by a lifting device and being further configured to assume a first position in which the extension arm remains substantially in the interior space of the nacelle and a second position in which the extension arm extends outside the nacelle cover to be coupled with the tag line.
F03D 13/40 - Arrangements or methods specially adapted for transporting wind motor components
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
F03D 13/10 - Assembly of wind motorsArrangements for erecting wind motors
21.
HELICOPTER HOISTING PLATFORM FOR WIND DRIVEN POWER PLANT
The invention relates to a helicopter hoisting platform for a nacelle of a wind driven power plant, wherein the helicopter hoisting platform comprises a detachable portion that is configured to be detached and removed from a permanent portion of the helicopter hoisting platform. The invention also relates to wind drive power plant comprising a nacelle and the helicopter hoisting platform.
The present invention relates to a nacelle (2) for a wind driven power plant. The nacelle (2) comprises at least one out of a multifunctional nacelle cover (6), a multifunctional support frame (15), and a multifunctional helicopter hoisting platform (8). The multifunctional nacelle cover (6) can comprise at least one out of a multifunctional flange concept, a multifunctional nacelle roof (7), and a multifunctional nacelle bottom cover (13).
The invention relates to a wind driven power plant comprising a nacelle having a nacelle cover and a helicopter hoisting platform, the nacelle further comprising a hatch extension and a hatch cover, the hatch extension being arranged between the nacelle cover and the hatch cover, wherein the hatch extension has a channel-like shape, wherein the hatch cover is mounted on top of the hatch extension, and wherein a the hatch extension provides a distance between the hatch cover and the nacelle cover.β
The present invention relates to a nacelle (2) for a wind driven power plant (1), the nacelle (2) comprising a nacelle bottom cover (13), wherein the nacelle bottom cover (13) comprises two or more segments (61-63), each of the segments (61-63) being configured to contain a respective predefined maximum volume of a liquid in a receptacle (76) in a case of leakage, and wherein the respective receptacles (61) are configured to collectively contain a total volume that corresponds to a total amount of liquids in the wind driven power plant (1), in particular a total amount of lubricating oils and/or cooling liquids in the wind driven power plant (1). The present invention also relates to a wind driven power plant (1) including the nacelle (2) and a wind park including a plurality of the wind driven power plants.
The invention relates to methods and devices for monitoring a drive drain for a wind turbine comprising an elastic coupling. The drive drain comprises: a rotor shaft (main shaft) configured to be driven by the rotor about a main axis; a support structure including a bearing housing surrounding the at least one bearing and supporting the rotor shaft for rotation about the main axis, thereby constraining other movements of the rotor shaft; a gearbox input shaft and a gearbox housing supporting the gearbox input shaft for rotation about the main axis while constraining other movements of the gearbox input shaft; and an elastic coupling, wherein the gearbox input shaft is coupled to the rotor shaft by the elastic coupling, the elastic coupling comprising a first coupling part rigidly connected with the rotor shaft, a second coupling part rigidly connected with the gearbox input shaft and elastic elements positioned between the first and the second coupling part, thereby constituting a single joint between the rotor shaft and the gearbox input shaft. The invention also relates to wind turbines comprising such a drive drain and methods of manufacturing or retrofitting wind turbines with such a drive drain.
The invention relates to a drive drain for a wind turbine comprising: a rotor shaft (main shaft) configured to be driven by the rotor about a main axis; a support structure including a bearing housing surrounding the at least one bearing and supporting the rotor shaft for rotation about the main axis, thereby constraining other movements of the rotor shaft; a gearbox input shaft and a gearbox housing supporting the gearbox input shaft for rotation about the main axis while constraining other movements of the gearbox input shaft; and an elastic coupling, wherein the gearbox input shaft is coupled to the rotor shaft by the elastic coupling, the elastic coupling comprising a first coupling part rigidly connected with the rotor shaft, a second coupling part rigidly connected with the gearbox input shaft and elastic elements positioned between the first and the second coupling part, thereby constituting a single joint between the rotor shaft and the gearbox input shaft. The invention also relates to wind turbines comprising such a drive drain and methods of manufacturing or retrofitting wind turbines with such a drive drain.
Methods and Devices for Accessing a Drive Drain of a Wind Turbine with Elastic Coupling, Wind Turbine and Methods The invention relates to methods and devices for accessing a drive drain for a wind turbine comprising an elastic coupling. The drive drain comprises: a rotor shaft (main shaft) configured to be driven by the rotor about a main axis; a support structure including a bearing housing surrounding the at least one bearing and supporting the rotor shaft for rotation about the main axis, thereby constraining other movements of the rotor shaft; a gearbox input shaft and a gearbox housing supporting the gearbox input shaft for rotation about the main axis while constraining other movements of the gearbox input shaft; and an elastic coupling, wherein the gearbox input shaft is coupled to the rotor shaft by the elastic coupling, the elastic coupling comprising a first coupling part rigidly connected with the rotor shaft, a second coupling part rigidly connected with the gearbox input shaft and elastic elements positioned between the first and the second coupling part, thereby constituting a single joint between the rotor shaft and the gearbox input shaft. The invention also relates to wind turbines comprising such a drive drain and methods of manufacturing or retrofitting wind turbines with such a drive drain.
F16F 13/08 - Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper the damper being a fluid damper, e.g. the plastics spring not forming a part of the wall of the fluid chamber of the damper the plastics spring forming at least a part of the wall of the fluid chamber of the damper
28.
METHOD OF OPERATING A WIND TURBINE WITHOUT GRID CONNECTION AND WIND TURBINE
The present invention relates to a method of operating a wind turbine, a method of manufacturing a wind turbine and a wind turbine. The wind turbine comprises a permanent magnet (PM) synchronous generator, a main converter, a main converter controller, a wind turbine master controller and an electrical power supply stage comprising an electrical energy storing device. A startup of the wind turbine can be performed using electrical energy from the electrical energy storing device independent from a power supplying grid and/or a combustion engine. After startup, the wind turbine can be operated in an island mode by controlling the intermediate voltage of the main converter by the main converter controller and retrieving power from the PM synchronous generator independent from the electrical energy storing device.
The present invention relates to a method of operating a wind turbine, a method of manufacturing a wind turbine and a wind turbine. The wind turbine comprises a permanent magnet (PM) synchronous generator, a main converter, a main converter controller, a wind turbine master controller and an electrical power supply stage comprising an electrical energy storing device. A startup of the wind turbine can be performed using electrical energy from the electrical energy storing device independent from a power supplying grid and/or a combustion engine. After startup, the wind turbine can be operated in an island mode by controlling the intermediate voltage of the main converter by the main converter controller and retrieving power from the PM synchronous generator independent from the electrical energy storing device.
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