CN102562438A - Modular rotor blade and method for mounting a wind turbine - Google Patents
Modular rotor blade and method for mounting a wind turbine Download PDFInfo
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- CN102562438A CN102562438A CN2011104529186A CN201110452918A CN102562438A CN 102562438 A CN102562438 A CN 102562438A CN 2011104529186 A CN2011104529186 A CN 2011104529186A CN 201110452918 A CN201110452918 A CN 201110452918A CN 102562438 A CN102562438 A CN 102562438A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0675—Rotors characterised by their construction elements of the blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/06—Rotors
- F03D1/065—Rotors characterised by their construction elements
- F03D1/0658—Arrangements for fixing wind-engaging parts to a hub
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/10—Assembly of wind motors; Arrangements for erecting wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2230/00—Manufacture
- F05B2230/20—Manufacture essentially without removing material
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
- F05B2240/302—Segmented or sectional blades
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49316—Impeller making
- Y10T29/4932—Turbomachine making
- Y10T29/49321—Assembling individual fluid flow interacting members, e.g., blades, vanes, buckets, on rotary support member
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to a modular rotor blade and a method for mounting a wind turbine. The rotor blade includes at least two segments, and at least one cable, wherein the at least two segments are adapted to be mounted together to form the rotor blade, and wherein the at least one cable is adapted to attach the at least two segments, and wherein the at least one cable is extending through at least part of the segments.
Description
Technical field
The present invention relates in general to the method and system that is used for the mounting wind machine, and more specifically, the present invention relates to be used to install the method and system of the wind turbine with modular rotor blade.
Background technique
At least some known wind turbines comprise pylon and are installed in the cabin on the pylon.Rotor rotatably is mounted to the cabin and is connected to generator through axle.A plurality of blades extend from rotor.Blades oriented becomes to make the wind of process blade to make rotor rotation and makes the axle rotation, thereby drives generator for electricity generation.
Routinely, blade carries out prefabricated in factory and is delivered to the erecting yard of wind turbine through land transport, marine transportation or air transport.At the scene, usually through rotor blade is connected to rotor hub and rotor is installed on the ground, and then will pass through rotor assembled through hoist upwards rises to its position in the cabin.
In this course, multiple difficulty possibly occur, wherein some are because erecting yard and near topographic(al) feature thereof cause.For example, must transport in the mountain area or inshore wind turbine through the path that wriggles usually.In these cases, owing to rotor blade has the actual conditions that sizable length has limited the carrier vehicle cornering ability, so land transport is hindered.
In addition, the space of erecting yard possibly be limited, for example in the mountain area.Because for assemble rotor on the ground needs on the size greater than the plane space of root diameter, therefore, assemble rotor almost is or is impossible fully on the ground.
In view of above-mentioned, expectation in transportation process, needing to obtain the wind turbine blade in less space, and expectation can have a kind of environment assembling limited in the space that is used for assembling process and the method for mounting wind machine rotor.
Summary of the invention
In one aspect, the present invention provides a kind of rotor blade that is used for wind turbine.A kind of rotor blade that is used for wind turbine comprises at least two sections and at least one cable; Wherein, At least two sections are suitable for being installed together to form rotor blade, and at least one cable is suitable for connecting at least two sections, and at least a portion of at least one cable section of passing is extended.
Said at least one cable stretches out along the longitudinal axis of said rotor blade.Said rotor blade further comprises point and root, and said cable is along stretching out from said point towards the direction of said root.Said cable is fixed at least one place, end of at least one section.Said cable is fixed at least one in said at least two sections through clamping or lamination mode.Said cable comprises from one or more element in following: steel, stainless steel, glass fibre and graphite fiber.At least one of said section further comprises at least one pipe, and said cable passes said at least one pipe through at least a portion of its length and stretches out.Said rotor blade comprises that further is used for a tonometric sensor, and said sensor is suitable for detecting the strain in the said cable.
In aspect second, the present invention also provides a kind of wind turbine.This wind turbine comprises: at least one rotor blade, and this rotor blade comprises at least two sections; And at least one cable, wherein, at least two sections are suitable for being installed together to form rotor blade, and at least one cable is suitable for connecting at least two sections, and at least a portion of at least one cable section of passing is extended.
Said wind turbine further comprises capstan winch, and said capstan winch is suitable for said at least one cable of tensioning.Said capstan winch is arranged in one the inside in said hub or said cabin.Said wind turbine further comprises the servo-motor that is used to make said hub rotation.Said servo-motor is arranged in the high regime of train of gearings in the cabin of said wind turbine.
In one aspect of the method, the present invention provides a kind of assembling to be used for the method for the rotor blade of wind turbine.This method may further comprise the steps: at least two sections are provided; At least one cable is provided; At least one first end of at least one cable is fixed at least one section; At least one second end of tensioning cable, thus at least two sections are connected to each other; And at least one second end of fixing at least one cable.
The step of fixing said at least one second end comprises clamping.Implement at least one second end of the said cable of tensioning through capstan winch.Said method further may further comprise the steps: a) hub with wind turbine is mounted to said cabin at the pylon place of said wind turbine; B) first section with the first rotor blade is promoted to said hub; C) be fixed to said hub with said section; D) promote another section; E) said another section is connected to previous section; F) repeating step d) and e), all be promoted to their position up to all sections of rotor blade.Said method also can further comprise: said hub and the rotor blade of being installed are rotated, and h) repeating step is a) to f).Implement step through capstan winch, and said capstan winch is mounted to said hub with the section lifting.
Through dependent claims, specification and accompanying drawing, others of the present invention, advantage and characteristic are conspicuous.
Description of drawings
With reference to accompanying drawing, the remainder of specification has more specifically been set forth of the present invention complete open towards those of ordinary skills, thisly openly makes those of ordinary skills can realize the present invention, comprises optimal mode of the present invention, wherein:
Fig. 1 is the perspective view of exemplary wind turbine.
Fig. 2 is the amplification view of the part of wind turbine shown in Figure 1.
Fig. 3 is the perspective view according to the modular rotor blade of the embodiment of the invention.
Fig. 4 is the perspective view according to another embodiment's modular rotor blade.
Fig. 5 is the perspective view according to another embodiment's modular rotor blade.
Fig. 6 is the perspective view according to the wind turbine rotor in embodiment's the assembling process.
Fig. 7 is that wind turbine rotor shown in Figure 6 has been installed all rotor blades perspective view afterwards.
Fig. 8 to Figure 10 is the perspective view according to the wind turbine in embodiment's the installation process.
Figure 11 is according to the perspective view of another embodiment's modular rotor blade.
Reference numerals list:
Pylon 12 30 pitch assemblies 66
Supporting system 14 sensors 70
Pitch bearing 72
Cabin 16 pitch drive motors 74
Rotor 18 pitch driving gearboxs 76
Rotatable hub 20,320 35 pitch driving pinions 78
Rotor blade 22 overspeed control systems 80
Root of blade 24 cables 82
Load transfer zone 26 power generators 84
Pitched system 32 outer surfaces 90
Become oar axis 34 longitudinal axis 116
Yaw axes 38 root sections 210
Processor 40 45 gaps 215,225
Generator 42 intermediate sections 220
Rotor shaft 44 tip section 230
Gear-box 46 surface of contact 240
Supporting member 52 pipes 280
Supporting member 54 fixed elements 290
Driftage driving mechanism 56 clamping elements 300
Preceding block bearing 60 55 openings 335
Rear trunnion holds 62 pulleys 345
The first rotor blade 360 pulleys 380
Embodiment
Now will be at length with reference to a plurality of embodiments, one of them or more example are shown in each accompanying drawing.Each example all provides with the mode that invention is made an explanation, and the present invention is not constituted restriction.For example, the characteristic that illustrates or describe as an embodiment's a part can be used in other embodiment or combines other embodiment to use, thereby produces another embodiment.Expectation the present invention includes these remodeling and modification.
The described embodiment of this specification comprises the wind turbine system that can install in limited zone, the space that is used for installation process.More specifically, modular rotor blade can be transported to the structure scene that is positioned at the position that is difficult for arrival.
Employed like this specification, term " blade " is intended to represent any device that reaction force is provided when being in motion with respect to surrounding fluid.Employed like this specification, term " wind turbine " is intended to represent any device from wind energy generation rotating energy, and more specifically, representative changes into the kinetic energy of wind in any device of mechanical energy.Employed like this specification; Term " wind-driven generator " is intended to represent any wind turbine that produces electric power from the rotating energy that is produced by wind energy; And more specifically, the representative mechanical energy that will be transformed by the kinetic energy of wind is converted into any wind turbine of electric power.Employed like this specification, term " modular rotor blade " is intended to represent the rotor blade that comprises at least two sections, and through section being installed the assemble rotor blade.
Fig. 1 is the perspective view of exemplary wind turbine 10.In the exemplary embodiment, wind turbine 10 is horizontal axis wind turbines.Perhaps, wind turbine 10 can be a vertical axis wind turbines.In the exemplary embodiment, wind turbine 10 comprises from the pylon 12 of supporting system 14 extensions, the rotor 18 that is installed in the cabin 16 on the pylon 12 and is connected to cabin 16.Rotor 18 comprises rotatable hub 20 and at least one rotor blade 200, and rotor blade 200 is connected to hub 200 and loose boss 20 stretches out.In the exemplary embodiment, rotor 18 has three rotor blades 200, and these three rotor blades 200 are modular rotor blades.In alternative, rotor 18 can comprise the rotor blade 200 greater or less than three.In the exemplary embodiment, pylon 12 is processed by steel pipe, to limit the chamber (not shown in figure 1) between supporting system 14 and the cabin 16.In alternative, pylon 12 is the pylons with any suitable type of any proper height.
In one embodiment, rotor blade 200 has the length in the scope that is in from about 15 meters (m) to about 91m.Perhaps, rotor blade 200 can have and makes the wind turbine 10 can be like the acting saidly any suitable length of this specification.For example, other non-limiting example of length of blade comprises 10m or less than 10m, 20m, 37m or greater than the length of 91m.Along with wind clashes into rotor blades 200 from direction 28, rotor 18 is rotated around spin axis 30.Along with rotor blade 200 is rotated and stands centrifugal force, rotor blade 200 also stands a plurality of power and moment.So, rotor blade 200 can and/or rotate to inflection point from location deflection neutral or non-deflection.
In addition; Propeller pitch angle of rotor blade 200 (pitch angle) or blade pitch (blade pitch); Promptly judge the angle (perspective) of rotor blade 200 with respect to the projection of the direction 28 of wind; Can change through pitched system (pitch adjustment system) 32, with respect to the position, angle of wind vector load and electric power that wind turbine 10 produces are controlled through regulating at least one rotor blade 200.Show the change oar axis (pitch axes) 34 that is used for rotor blade 200.In the operating process of wind turbine 10; Pitched system 32 can change the blade pitch of rotor blade 200; Make rotor blade 200 can move to along slurry position (feathered position); Make at least one rotor blade 200 long-pending with respect to the minimal surface that the projection of wind vector provides the kibli vector to carry out directed rotor blade 200, thus help reducing rotor 18 rotating speed and/or help the stall (stall) of rotor 18.
In the exemplary embodiment, the blade pitch of each rotor blade 200 is all controlled separately by control system 36.Perhaps, the blade pitch of all rotor blades 200 also can be controlled by control system 36 simultaneously.In addition, in the exemplary embodiment,, can control, to locate rotor blades 200 with respect to direction 28 around the yaw direction in 38 pairs of cabins 16 of yaw axes along with direction 28 changes.
In the exemplary embodiment; Control system 36 is shown in cabin 16 and is in the central position; But control system 36 can be to spread all over wind turbine 10, be positioned on the supporting system 14, be positioned at wind power plant and/or be positioned at the distributed system of remote control center.Control system 36 comprises processor 40, and processor 40 is configured to carry out described method of this specification and/or step.In addition, many described other parts of specification can comprise a processor.Employed like this specification; Term " processor " is not limited to be called in related domain the intergrated circuit of computer; But broadly refer to controller, microcontroller, microcomputer, programmable logic controller (PLC) (PLC), ASIC and other programmable circuit, and these terms can exchange use in this manual.Should be appreciated that processor and/or control system can also comprise storage, input channel and/or output channel.
In the described embodiment of this specification, storage can not have limited significance ground and comprise the computer-readable medium of random-access memory (ram) for example and the computer readable non-volatile media of flash memory for example.Perhaps, also can use floppy disk, compact disc read-only memory (CD-ROM), magnetooptic disc (MOD) and/or digital versatile disc (DVD).Equally, in the described embodiment of this specification, input channel does not have limited significance ground and comprises the sensor and/or the computer peripheral relevant with operator interface of mouse and keyboard for example.In addition, in the exemplary embodiment, output channel can not have limited significance ground and comprise control gear, operator interface monitor unit and/or display device.
The described processor of this specification is to being handled by a plurality of electric devices and electronic equipment information transmitted, and a plurality of electric devices and electronic equipment can not have limited significance ground and comprise sensor, actuator, compressor, control system and/or monitoring device.These processors for example can be physically located in control system, sensor, monitoring device, desktop computer, laptop computer, programmable logic controller (PLC) (PLC) cabinet and/or distributed control system (DCS) cabinet.RAM and storage device are to being stored and transmitted by information and the instruction that processor is carried out.RAM and storage device can also be used in the process storage of processor execution command and to processor temporary variable, static state (promptly not changing) information and instruction or other average information being provided.Performed instruction can not have limited significance ground and comprise wind turbine control system control command.The execution sequence of instruction is not limited to any concrete combination of hardware circuit and software instruction.
Fig. 2 is the amplification view of the part of wind turbine 10.In the exemplary embodiment, wind turbine 10 comprises cabin 16 and hub 20, and hub 20 is rotationally attached to cabin 16.More specifically, hub 20 is rotationally attached to the generator 42 that is positioned at cabin 16 through rotor shaft 44 (being called main shaft or lower velocity shaft sometimes), gear-box 46, high speed shaft 48 and link 50.In the exemplary embodiment, rotor shaft 44 is set to longitudinal axis 116 coaxial.The rotation of rotor shaft 44 rotatably drives gear-box 46, and gear-box 46 then drives high speed shaft 48.High speed shaft 48 rotatably drives through 50 pairs of generators 42 of link, and the rotation of high speed shaft 48 helps producing electric power through generator 42.Gear-box 46 is supported by supporting member 52 and supporting member 54 with generator 42.In the exemplary embodiment, gear-box 46 utilizes the dual path geometrical shape that high speed shaft 48 is driven.Perhaps, rotor shaft 44 is connected directly to generator 42 through link 50.
Before block bearing 60 and rear trunnion hold 62 help rotor shaft 44 radial support and alignment.Preceding block bearing 60 is connected to rotor shaft 44 near hub 20.Rear trunnion holds 62 and near gear-box 46 and/or generator 42, is arranged on the rotor shaft 44.What perhaps, cabin 16 comprised any number can make wind turbine 10 like the acting saidly block bearing of this specification.Rotor shaft 44, generator 42, gear-box 46, high speed shaft 48, link 50 and any relevant fastening piece, supporting member and/or include but not limited to supporting member 52 and/or the fixing device of supporting member 54 and preceding block bearing 60 and rear trunnion hold 62 are called power train 64 sometimes.
In the exemplary embodiment, hub 20 comprises pitch assembly (pitch assembly) 66.Pitch assembly 66 comprises one or more pitch (pitch) drive system 68 and at least one sensor 70.Each pitch drive system 68 all is connected to corresponding rotor blade 200 (being shown among Fig. 1), adjusts with the blade pitch that is used for 34 pairs of relevant rotor blades 200 of edge change oar axis (pitch axis).Have only one to be illustrated among Fig. 2 in three pitch drive systems 68.
In the exemplary embodiment, pitch assembly 66 comprises at least one the pitch bearing 72 that is connected to hub 20 and corresponding rotor blade 200 (being shown among Fig. 1), to be used to making corresponding rotor blade 200 around becoming 34 rotations of oar axis.Pitch drive system 68 comprises pitch drive motor 74, pitch driving gearbox 76 and pitch driving pinion (pitch drive pinion) 78.Pitch drive motor 74 is connected to pitch driving gearbox 76, makes pitch drive motor 74 apply mechanical force to pitch driving gearbox 76.Pitch driving gearbox 76 is connected to pitch driving pinion 78, makes pitch driving pinion 78 be rotated through pitch driving gearbox 76.Pitch bearing 72 is connected to pitch driving pinion 78, makes the rotation of pitch driving pinion 78 that pitch bearing 72 is rotated.More specifically, in the exemplary embodiment, pitch driving pinion 78 is connected to pitch bearing 72, makes the rotation of pitch driving gearbox 76 that pitch bearing 72 and rotor blade 200 are rotated around becoming oar axis 34, to change the blade pitch of blade 200.
Fig. 3 shows the exemplary embodiment of the modular rotor blade 200 in the assembling process.In the exemplary embodiment, rotor blade 200 comprises three sections 210,220,230 and cable 260.Each section 210,220,230 all comprises at least one surface of contact 240.
Fig. 4 shows rotor blade shown in Figure 3, and wherein sightless element is shown in broken lines in Fig. 3.Cable 260 is fixed to fixed element 290 in the inboard of the tip element 230 of rotor blade.In this embodiment, this fixedly is to be depressed into fixed element 290 through the end layers with cable to realize.In other embodiments, used other fixation method that for example clamps.Cable 260 passes pipe 280 from fixed element along the direction of leading to intermediary element 220 and stretches out.Cable 260 passes another pipe and 280 further extend out in the intermediary element 220, and passes another pipe 280 and extend out to outside the intermediary element 220.Cable gets into root element 210 and leaves this element through opening 256 through another pipe 280.Therefore, cable 260 passes the rotor blade element from its immovable point that is arranged in tip element 230 and stretches out.In this embodiment, root element 210 is left through opening 256 in relative end, the end with being fixed to tip element 230 of cable 260.Pipe 280 can have different length.In an embodiment, pipe 280 can have the length up to the whole length of corresponding rotor blade section from 2cm.More specifically, this length from 5cm to 1m, even more specifically, from 10cm to 40cm.That is, in certain embodiments, a pipe 280 can extend to the other end from an end of section, and in other embodiments, a pipe 280 is arranged on each place, end of rotor blade section 210,220.Tip section 230 only has a pipe that is arranged on place, an end usually.
In the exemplary embodiment, install through 210,220,230 pairs of modular rotor blades 200 of location rotor blade element shown in Fig. 3 and Fig. 4.Cable 260 can or be fixed to tip element 230 by factory in factory, and can only pass other element 220,210 insertions at the structure scene of wind turbine.In other embodiments, use and be fixed to tip element 230 in the process that cable 260 can also be assembled at the scene.In this case, tip element 230 must be designed to make cable to install or to be fixed to fixed element 290 at the erecting yard of wind turbine.Then, apply power to the end of stretching out outside the root element 210 of cable 260.Because the other end of cable is fixed to tip element 230; So element 210,220,230 will bind together;, gap 215,225 closes up the surface of contact 240 of the section 210,220,230 that surface of contact 240 butts of this process section of comprising 210,220,230 are contiguous thereby being dwindled up to the gap.
Fig. 5 shows Fig. 3 and the modular rotor blade 200 shown in Figure 4 after gap 215,225 closes up through the tensioning process.After the gap closes up, continue cable 260 is carried out tensioning.Because blade element 210,220,230 contacts at its surface of contact 240 places, so blade element can not move again.Then, tensioning will make the tension force of cable 260 increase.If reach predetermined tension, the tensioning process stops and cable 260 is fixed.In the exemplary embodiment, this realizes through by fastening device 300 cable 260 being clamped.Equally, other fixation method also is feasible.The predetermined tension of cable 260 depends on the characteristic of modular rotor blade to a great extent, for example depends on its shape, material and structure.Tension force in the cable can be by well known to a person skilled in the art that for example the several different methods of strain element is measured in the tensioning process.In another embodiment, the torque of capstan winch that is used for tensioning or pulling cable 260 can be used for limiting the point of accomplishing the tensioning process.
Because cable 260 is fixed receiving under the situation of tension force, so cable 260 is as the fixed element that rotor blade element 210,220,230 is linked together.Can the tension force of cable be calculated, make that the tension force of cable is enough big, with the stability under the modular rotor blade 200 that keeps being assembled each possible condition in the process of the installation of subsequently wind turbine and operation.This is included in the limit load situation that promptly stops under the situation such as high wind for example.Cable 260 generally includes stainless steel, glass fibre, graphite fiber or its combination of steel, for example V2A or V4A.According to the size that wind turbine is installed, cable 260 can have the diameter from 10mm to 80mm, more typically the diameter from 20mm to 70mm.The diameter that pipe 280 typically has greater than cable diameter, the diameter of pipe 280 is about 1mm to 50mm, more typically from 3mm to 30mm.Pipe can comprise metal, glass fibre or any other suitable material.Because pipe does not carry very big load usually, therefore will not manage and be designed to have very high intensity and rigidity, but should standing cable 260, pipe in installation process, passes the frictional force that is applied when pipe moves.In other embodiments, pipe 280 substitutes three cylindrical rolls that for example position as offseting with respect to each 120 ° of non-limiting example by the roll assembly to cable 260 channeling conducts.In other embodiments, can adopt other roller or pipe structure.
Fig. 3, Fig. 4 and Fig. 5 show modular rotor blade 200 and show installation process respectively and with arrow the tensioning process of applied force or the principle of drawing process are shown.Can be mounted to ground rotor hub 320 subsequently through said method rotor assembled blade.In other embodiments, also can be promoted to it separately in the position of wind turbine tower, be mounted to hub 320 again with passing through the rotor assembled blade, hub 320 has been mounted to cabin 16 in advance.
In other embodiments, the number of the section of blade 200 can be different, for example from 2 element to 10 elements.
In described embodiment, apply tension force by capstan winch or oil hydraulic cylinder.Tension device must become to make that being applied to power on the cable by this device can not make root blade part 210 move with respect to pull unit with respect to the planning of rotor blade.In an embodiment, pull unit (being capstan winch or oil hydraulic cylinder) is limited in the front 295 of root blade element 210.At least rotor blade element 220 and 230 is supported, make it to move freely along the direction that needs are followed by cable 260 applied forces.For this purpose, can element be bearing on the roller (not shown), in other embodiments, can keep these elements through hoist.Because root blade part 230 does not move in the tensioning process usually, therefore can stably position root blade part 230 on the ground.
Fig. 6 shows another exemplary embodiment, and wherein rotor blade 200 is mounted to rotor hub 320 equally in the assembling process of blade.Accompanying drawing shows the rotor 350 that is in assembled state.A rotor blade 360 has been installed, and another blade will use aforesaid tensioning method to assemble.Rotor hub 320 rest on the ground, and makes that the longitudinal axis of the flange be used for rotor blade or opening is parallel to the ground.Then through orientating rotor blade element 210,220,230 as contiguous hub 320 with reference to the described mode of Fig. 3, Fig. 4 and Fig. 5.Cable 260 extend out in the hub 320 from root blade element 210.The tension device 330 of for example electric capstan winch, hydraulic capstan or oil hydraulic cylinder is used for tensioning cable 260.In the exemplary embodiment, tension device 330 is positioned at hub 320 outsides.In this embodiment, cable 260 leads in hub 320 through at least one pulley 345 again, and exports to outside the hub 320 through opening 335 subsequently.As previously mentioned, must be connected to fixedly (not shown) of 320 pairs of devices 330 of hub, make pulling force can not cause that tension device 330 is shifted with respect to hub 320.In other embodiments, tension device 330 can be positioned at hub 320 inside.Use after can after assembling, it being removed or it is retained in the hub inboard treats.
Fig. 7 shows and after process shown in Figure 6, is placed on ground completion rotor assembled 350.Subsequently, can for example rotor be promoted to its position on wind turbine tower 12 through hoist.
Fig. 8 shows the exemplary embodiment that the wind turbine with modular rotor blade is assembled.This modular rotor blade is with described similar with reference to previous embodiment.At first, hub 320 is mounted to cabin 16, makes the flange 370 that is used for rotor blade towards ground.Subsequently, upwards be promoted to hub 320 from ground with root blade part 210.For this purpose, pipe 280 (not shown) that pass said element are to cable 260 channeling conducts, and cable 260 is fixed on the lower end of said element 210.Then cable 260 is carried out tractive through the capstan winch 330 (only schematically illustrated) that is arranged in hub 320 or cabin 16.According to the position of capstan winch 320, must be through one or more pulley (not shown) at hub and/or engine room inside to the cable channeling conduct.In case element 210 is in its specified position at hub, it promptly is fixed to hub 320.Corresponding method is well-known to those skilled in the art.Then unclamp cable and make the one of which end hang down to ground, so that promote next element from element 210.Subsequently, element 220 (being shown among Fig. 8) is implemented same process.When element 220 was pulled up and contacts with root blade element 210, it promptly was fixed on this position.This can link together element 210,220 through screw and bolt or the extra cable holding member 220 through loose boss or cabin and implement.Then discharge cable 260 from element 220.
Fig. 9 shows the tip element 230 of the first rotor blade to be installed, and how pull-up is to element 210,220 in place.With with reference to the same among the described embodiment of Fig. 3, Fig. 4 and Fig. 5, in case element 230 is in place, the tensioning process will continue to reach predetermined value up to the tension force of cable 260.Then, cable 260 is fixed in the hub 320 through fastening device.In case the first rotor blade is accomplished, hub 320 just rotates up to another flange 370 towards ground, and next root element 210 upwards promotes through cable 260.This process exemplarily is shown among Figure 10.For rotor hub 320 is rotated, can application examples such as the cabin middle gear be the extra motor in the high regime.Can, installation process remove this motor after accomplishing.
Figure 11 shows the modular rotor blade 200 according to embodiment.Its principle and Fig. 3 and rotor blade shown in Figure 4 are similar, have the extra pulley 380 that preferably is rotatably installed in the tip element 230.Cable 385 gets into root element 210 and the section of passing 210,220,230 and stretches out at opening 265 places, and then leads again through pulley 380.It then passes element 210,220,230 and stretches out and return, and the end 385 of cable is passed opening 265 and left root element 210.Therefore, cable need not be connected to tip element 230 through clamping to wait.In addition because pulley as transfer unit, therefore brings in the required power of connecting element through one of pulling cable and significantly reduces, in theory (when ignoring friction) be reduced to half the.Two parts of cable can be passed identical pipe 280 and stretched out, and perhaps pass special-purpose parallel tubes and stretch out.
Comprise among the embodiment of glass fibre at cable 260, can measure the strain in the cable in the tensioning process through the optical sensor of measuring glass fibre cable optical characteristics.These sensors can also use in the operating process of wind turbine, with the state of control cable.
Said system and method help be difficult for arriving and in assembling process, provide mounting wind machine in the zone of the confined space.
This specification is described in detail the exemplary embodiment of the system and method for the wind turbine that is used to have modular rotor blade.These system and methods are not limited to the described specific embodiment of this specification, on the contrary, can utilize the parts of system and/or the step of method independently and individually with described other parts of this specification and/or step.For example, modular rotor blade is not limited to only implement through the described wind turbine system of this specification.On the contrary, can combine many other rotor blades should be used for implementing and utilizing these exemplary embodiments.
Be not shown in other accompanying drawings although each embodiment's of the present invention concrete characteristic may be shown in some accompanying drawings, this only is for convenience's sake.According to principle of the present invention, any characteristic in accompanying drawing can combine any characteristic of any other accompanying drawing to carry out reference and/or require protection.
This specification usage example discloses the present invention, comprising optimal mode, and makes those skilled in the art can embodiment of the present invention, comprising making and use any device or system and any method that execution comprised.Although this specification discloses a plurality of specific embodiments, those skilled in the art will recognize that the spirit of claim and scope allow same effectively remodeling.Particularly, the described embodiment's of this specification mutual not exclusive characteristic can be bonded to each other.Claim of the present invention limits through claim, and can comprise other examples that those skilled in the art can expect.If these other example comprises the structural element as broad as long with the literal language of claim; If perhaps these other example comprises that the literal language with claim does not have other equivalent structure element of solid area, expect that then these other example falls into the scope of claim.
Claims (10)
1. rotor blade that is used for wind turbine, it comprises:
At least two sections;
At least one cable;
Wherein, said section is suitable for being installed together to form said rotor blade, and said at least one cable is suitable for connecting said at least two sections, and said cable passes at least a portion extension of said section.
2. rotor blade according to claim 1 is characterized in that, said at least one cable stretches out along the longitudinal axis of said rotor blade.
3. rotor blade according to claim 1 and 2 is characterized in that, said rotor blade further comprises a point and a root, and said cable is along stretching out from said point towards the direction of said root.
4. according to each described rotor blade in the aforementioned claim, it is characterized in that said cable is fixed at least one in said at least two sections at least one place, end through lamination and/or clamping mode.
5. according to each described rotor blade in the aforementioned claim, it is characterized in that said cable comprises from one or more element in following: steel, stainless steel, glass fibre and graphite fiber.
6. according to each described rotor blade in the aforementioned claim, it is characterized in that at least one of said section further comprises at least one pipe, and said cable passes said at least one pipe through at least a portion of its length and stretches out.
7. according to each described rotor blade in the aforementioned claim, it is characterized in that said rotor blade comprises that further is used for a tonometric sensor, said sensor is suitable for detecting the strain in the said cable.
8. a wind turbine comprises that at least one is according to the described rotor blade of claim 1 to 8.
9. an assembling is used for the method for the rotor blade of wind turbine, and it may further comprise the steps:
At least two sections are provided;
At least one cable is provided;
At least one first end of said at least one cable is fixed at least one section;
At least one second end of the said cable of tensioning is so that said at least two sections are connected to each other;
Said at least one second end of-fixing said at least one cable.
10. method according to claim 9 is characterized in that, said method further may further comprise the steps:
The hub of wind turbine is mounted to said cabin at the pylon place of said wind turbine;
First section with the first rotor blade is promoted to said hub;
Be fixed to said hub with said section;
Promote another section;
Said hub is rotated.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/972590 | 2010-12-20 | ||
| US12/972,590 US20110206510A1 (en) | 2010-12-20 | 2010-12-20 | Modular rotor blade and method for mounting a wind turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102562438A true CN102562438A (en) | 2012-07-11 |
Family
ID=44476626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104529186A Pending CN102562438A (en) | 2010-12-20 | 2011-12-19 | Modular rotor blade and method for mounting a wind turbine |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20110206510A1 (en) |
| CN (1) | CN102562438A (en) |
| DE (1) | DE102011056704A1 (en) |
| DK (1) | DK201170721A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937480A (en) * | 2015-03-04 | 2016-09-14 | 西门子公司 | A wind turbine rotor blade and a method for mounting a wind turbine rotor blade |
| CN111577509A (en) * | 2020-05-20 | 2020-08-25 | 温州砼程维禹科技有限公司 | Aerogenerator blade convenient to transportation |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009041982A1 (en) * | 2009-09-17 | 2011-04-14 | Schuler Pressen Gmbh & Co. Kg | Method for cable assembly in the tower of a wind turbine |
| US8474219B2 (en) | 2011-07-13 | 2013-07-02 | Ultimate Strength Cable, LLC | Stay cable for structures |
| US20120260590A1 (en) | 2011-04-12 | 2012-10-18 | Lambert Walter L | Parallel Wire Cable |
| WO2013042250A1 (en) * | 2011-09-22 | 2013-03-28 | 三菱重工業株式会社 | Rotor-blade attachment method for renewable energy power generation device |
| DE102012211566A1 (en) * | 2012-07-03 | 2014-01-09 | Wobben Properties Gmbh | Monitored component connection, wind turbine, method for monitoring a component connection to an unwanted release of the component connection in the connected state |
| FR3009034B1 (en) * | 2013-07-26 | 2015-08-21 | Europ D Ingenierie Et De Dev Des En Renouvelables Soc | SEGMENTED WINDBREAD BLADE WITH ASSEMBLY DEVICE |
| CA2999938C (en) * | 2015-10-01 | 2024-06-25 | Lagerwey Wind B.V. | Hoisting system for installing a wind turbine |
| ES2876008T3 (en) | 2017-03-29 | 2021-11-11 | Gen Electric | Hub crane assembly for a wind turbine |
| US11162476B2 (en) * | 2018-10-30 | 2021-11-02 | General Electric Company | Wind turbine rotor blade pre-staged for retrofitting with a replacement blade tip segment |
| US11118574B2 (en) * | 2019-11-19 | 2021-09-14 | General Electric Company | Method for installing a jointed rotor blade of a wind turbine |
| CN115989360A (en) * | 2020-08-24 | 2023-04-18 | 通用电气可再生能源西班牙有限公司 | Method of assembling or disassembling a rotor blade of a wind turbine |
| EP4027007A1 (en) | 2021-01-12 | 2022-07-13 | General Electric Renovables España S.L. | Method of mounting blades to a rotor hub of a wind turbine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921152C2 (en) * | 1979-05-25 | 1982-04-22 | Messerschmitt-Bölkow-Blohm GmbH, 8000 München | Rotor blade for wind power plants |
| US6902370B2 (en) * | 2002-06-04 | 2005-06-07 | Energy Unlimited, Inc. | Telescoping wind turbine blade |
| US7393184B2 (en) * | 2005-11-10 | 2008-07-01 | General Electric Company | Modular blades and methods for making same |
| EP2092191B1 (en) * | 2006-07-21 | 2011-09-14 | Clipper Windpower, Inc. | Retractable rotor blade structure |
| GB2440954B (en) * | 2006-08-18 | 2008-12-17 | Insensys Ltd | Structural monitoring |
| US8482147B2 (en) * | 2009-07-21 | 2013-07-09 | George Moser | Wind turbine with powered synchronization system |
-
2010
- 2010-12-20 US US12/972,590 patent/US20110206510A1/en not_active Abandoned
-
2011
- 2011-12-19 CN CN2011104529186A patent/CN102562438A/en active Pending
- 2011-12-19 DK DKPA201170721A patent/DK201170721A/en not_active Application Discontinuation
- 2011-12-20 DE DE102011056704A patent/DE102011056704A1/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937480A (en) * | 2015-03-04 | 2016-09-14 | 西门子公司 | A wind turbine rotor blade and a method for mounting a wind turbine rotor blade |
| CN111577509A (en) * | 2020-05-20 | 2020-08-25 | 温州砼程维禹科技有限公司 | Aerogenerator blade convenient to transportation |
| CN111577509B (en) * | 2020-05-20 | 2021-02-26 | 温州砼程维禹科技有限公司 | Aerogenerator blade convenient to transportation |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110206510A1 (en) | 2011-08-25 |
| DE102011056704A1 (en) | 2012-06-21 |
| DK201170721A (en) | 2012-06-21 |
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Application publication date: 20120711 |