CN114687960A - Vortex-induced vibration suppression device, blade assembly and wind turbine generator - Google Patents
Vortex-induced vibration suppression device, blade assembly and wind turbine generator Download PDFInfo
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- CN114687960A CN114687960A CN202210286992.3A CN202210286992A CN114687960A CN 114687960 A CN114687960 A CN 114687960A CN 202210286992 A CN202210286992 A CN 202210286992A CN 114687960 A CN114687960 A CN 114687960A
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- 239000000463 material Substances 0.000 claims description 6
- 239000004677 Nylon Substances 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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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
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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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
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The invention relates to the technical field of wind turbine generators, in particular to a vortex-induced vibration suppression device, a blade assembly and a wind turbine generator. Vortex induced vibration suppression device includes the vortex cover, the cross-sectional area of vortex cover is reduced by one end to the other end gradually, just the vortex is applied mechanically and is used for the parcel to be in the lobe portion of blade. The blade assembly comprises the vortex-induced vibration suppression device. The wind turbine generator system comprises the blade assembly. The vortex-induced vibration suppression device, the blade assembly and the wind turbine generator set provided by the invention can be used for greatly relieving the problem that the blade generates resonance due to vortex-induced vibration, so that the blade is not easy to damage due to serious swinging; in addition, the flow disturbing sleeve is convenient to put on and take off.
Description
Technical Field
The invention relates to the technical field of wind turbine generators, in particular to a vortex-induced vibration suppression device, a blade assembly and a wind turbine generator.
Background
The wind turbine generator set is a device which utilizes natural wind to drive blades to rotate to generate electricity and realizes conversion from wind energy to electric energy.
When the existing wind turbine generator system is in a hoisting or shutdown state, and air flows through the blades, vortexes often appear and vortex-induced vibration is possible to appear, when the separation frequency of the vortexes on the blades is close to the natural frequency of the blades, the blades are easy to resonate, and when the blades swing seriously, the blades are damaged.
In summary, how to overcome the above-mentioned defects of the blades of the existing wind turbine generator system is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a vortex-induced vibration suppression device, a blade assembly and a wind turbine generator set, so as to solve the technical problem that blades of the wind turbine generator set in the prior art are easy to damage due to vortex-induced vibration.
The vortex-induced vibration suppression device comprises a turbulence sleeve, wherein the cross-sectional area of the turbulence sleeve is gradually reduced from one end to the other end, and the turbulence sleeve is used for wrapping the blade tip part of the blade.
Preferably, as an implementable mode, the vortex cover includes vortex body and bandage, the vortex body is used for the parcel the lobe portion of blade, the bandage is connected the great one end of cross-sectional area of vortex body, just the bandage is used for tying up tightly on the blade, the vortex cover can the bandage comes off after loosening.
Preferably, as an implementation mode, the vortex-induced vibration suppression device further comprises a connecting line and a driver, the driver is used for being installed on the blade, one end of the connecting line is connected with the driver, the other end of the connecting line is connected with the loose end of the binding band, the driver is used for shortening or lengthening the connecting line, and the turbulent flow belt can pull the binding band to be loosened when being shortened.
Preferably, as an implementation manner, the vortex-induced vibration suppression device further includes a vortex-induced vibration detector and a controller, the vortex-induced vibration detector is electrically connected to the controller, the vortex-induced vibration detector is mounted on the blade, and the vortex-induced vibration detector is configured to detect a vortex-induced vibration signal of the blade.
The controller is electrically connected with the driver and is used for controlling the operation of the driver; and/or, the vortex-induced vibration suppression device further comprises an alarm, the alarm is electrically connected with the controller, and the controller is used for controlling the alarm to give an alarm.
Preferably, as an embodiment, the flow-disturbing sleeve comprises a mesh cylinder, and the mesh cylinder is used for being sleeved on the blade tip part of the blade;
or, the vortex cover is including vortex area and a plurality of vortex piece, and is a plurality of the vortex piece concatenate in the vortex area, the vortex area be the heliciform winding in the lobe portion of blade.
Preferably, as an implementation mode, the material of the net cylinder is nylon or cloth;
or the flow disturbing belt is a rope, and the flow disturbing block is made of foam, plastic or light rubber.
Preferably, as an embodiment, the ratio of the length of the flow-disturbing sleeve to the length of the tip portion is 1/3, 3/5 or 2/3.
Preferably, as an implementation mode, the vortex induced vibration suppression device further comprises a streamlined vortex generator, the vortex generator is used for being installed at the trailing edge position of the blade, and the vortex generator is close to the position where the chord length of the blade is largest and is arranged along the axial direction of the blade.
Correspondingly, the invention further provides a blade assembly which comprises the vortex-induced vibration suppression device.
The invention also provides a wind turbine generator which comprises the blade assembly.
Compared with the prior art, the invention has the beneficial effects that:
the turbulence sleeve provided by the invention has a turbulence function, is wrapped at the tip part of the blade, can disturb the vortex near the tip part, inhibits the vortex-induced vibration near the tip part, and mostly locates near the tip part due to the vortex-induced vibration which has a large influence on the blade, so that the turbulence sleeve is wrapped at the tip part of the blade, and can greatly relieve the problem that the blade generates resonance due to the vortex-induced vibration, thereby preventing the blade from being damaged due to serious swinging.
The cross-sectional area of the blade tip part of the blade is gradually reduced from the inner end to the tail end, so that the cross-sectional area of the turbulence sleeve is gradually reduced from one end to the other end, and the requirement that the blade tip part of the blade is wrapped by the turbulence sleeve can be met; in addition, the cross-sectional area of flow disturbing sleeve and lobe portion reduces gradually from one end near the root of blade to the blade tail end, is convenient for to flow disturbing sleeve to the lobe portion of blade by the blade tail end cover, also is convenient for take off the flow disturbing sleeve from the blade tail end moreover, consequently, has improved the wearing of flow disturbing sleeve and has taken off the convenience.
In conclusion, the vortex-induced vibration suppression device provided by the invention can relieve the problem that the blade generates resonance due to vortex-induced vibration to a great extent, so that the blade is not easy to damage due to serious swinging; in addition, the flow disturbing sleeve is convenient to put on and take off.
The blade assembly provided by the invention has the advantages that the blade assembly is not easy to generate resonance due to the vortex-induced vibration suppression device, so that the blade assembly is not easy to damage due to serious swinging; in addition, the flow disturbing sleeve is convenient to put on and take off.
The wind turbine generator set provided by the invention has all the advantages of the blade assembly, and the blade is not easy to generate resonance, so that the blade is not easy to damage due to serious swinging; (ii) a In addition, the flow disturbing sleeve is convenient to put on and take off.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a blade assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another blade assembly according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of the blade assembly provided in the embodiment of the present invention shown in FIG. 2;
fig. 4 is a partial structural schematic diagram of the flow-disturbing sleeve provided in the embodiment of the invention in fig. 2.
Description of reference numerals:
100-a flow disturbing sleeve; 110-a strap; 120-mesh cylinder; 130-a turbulent flow zone; 140-a spoiler block;
200-connecting lines;
300-vortex induced vibration detector;
400-blade; 410-tip part of the leaf; 420-root end of leaf.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Referring to fig. 1 and 2, the present embodiment provides a vortex induced vibration suppression device, which includes a flow disturbing sleeve 100, wherein the cross-sectional area of the flow disturbing sleeve 100 is gradually reduced from one end to the other end, and the flow disturbing sleeve 100 is used for wrapping a tip portion 410 of a blade 400.
The vortex sleeve that this embodiment provided has the vortex function, wraps up its lobe portion 410 at blade 400, can disturb near vortex of lobe portion 410, restrain near vortex-induced vibration of lobe portion 410, and the great vortex-induced vibration of influence is near most in lobe portion 410 to blade 400, consequently, wrap up vortex sleeve 100 at the lobe portion 410 of blade 400, can alleviate blade 400 at to a great extent and produce resonant problem because of vortex-induced vibration, thereby, blade 400 is difficult for damaging because of the swing is serious.
It should be noted that the cross-sectional area of the tip portion 410 of the blade 400 is gradually reduced from the inner end to the tail end, so that the cross-sectional area of the spoiler sleeve 100 is set to be gradually reduced from one end to the other end, which can meet the requirement that the spoiler sleeve 100 wraps the tip portion 410 of the blade 400; in addition, the cross-sectional areas of the turbulence sleeve 100 and the blade tip portion 410 are gradually reduced from one end close to the root of the blade 400 to the tail end of the blade 400, so that the turbulence sleeve 100 is conveniently sleeved on the blade tip portion 410 of the blade 400 from the tail end of the blade 400, and the turbulence sleeve 100 is conveniently taken off from the tail end of the blade 400, therefore, the penetrating and taking-off convenience of the turbulence sleeve 100 is improved.
In summary, the vortex-induced vibration suppression device provided in this embodiment can greatly alleviate the problem that the blade 400 resonates due to vortex-induced vibration, so that the blade 400 is not easily damaged due to serious swinging; in addition, the spoiler sleeve 100 is also convenient to put on and take off.
Specifically, the specific shape and size of the spoiler sheath 100 may be set according to the external shape and the thickness-to-chord ratio of the corresponding blade 400.
Referring to fig. 1 and 2, a spoiler body and a binding band 110 may be disposed in the specific structure of the spoiler sleeve 100, wherein the spoiler body is wrapped around the tip portion 410 of the blade 400 and is a main spoiler component, the binding band 110 is connected to one end of the spoiler body having a larger cross-sectional area, after the spoiler sleeve 100 is wrapped around the tip portion 410, the binding band 110 is tightly bound to the blade 400, and the spoiler sleeve 100 can be fixed at a current position without slipping off; when the spoiler sleeve 100 needs to be taken off, the binding band 110 can be loosened, and then the spoiler sleeve 100 can be taken off from the tail end along the blade 400, which is very convenient.
In the specific structure of the vortex-induced vibration suppression device provided in this embodiment, a connection line 200 and a driver may be further provided, the driver is mounted on the blade 400, one end of the connection line 200 is connected to the driver, and the other end of the connection line 200 is connected to the loose end of the strap 110.
When the turbulent flow sleeve 100 needs to be taken off, the driver can be started, and the connecting line 200 is driven to be firstly shortened by the driver so as to pull the binding band 110 to be loosened; after the binding band 110 is loosened, although the turbulence sleeve 100 is not tightly bound on the blade 400, the turbulence sleeve 100 cannot directly fall off under the action of the connecting wire 200, at the moment, the connecting wire 200 can be driven to be lengthened by the driver, in the process of lengthening the connecting wire 200, the turbulence sleeve 100 can slowly fall off, after the turbulence sleeve 100 slides to the ground or a preset height, the driver is stopped, at the moment, the turbulence sleeve 100 can be folded by a worker, and if the turbulence sleeve 100 is not damaged, the turbulence sleeve can be continuously used.
It should be noted that, through the effect of the connecting wire 200, the flow disturbing sleeve 100 slowly slides down, so that the flow disturbing sleeve 100 can be prevented from smashing underground personnel, the safety is improved, the automation degree of the process of detaching the flow disturbing sleeve 100 is higher, and the manpower can be saved; in addition, the flow disturbing sleeve 100 can be used continuously, so that the cost can be saved.
The vortex-induced vibration suppression device provided in this embodiment may further include a vortex-induced vibration detector 300 and a controller, the vortex-induced vibration detector 300 is electrically connected to the controller, the vortex-induced vibration detector 300 is mounted on the blade 400, a vortex-induced vibration signal of the blade 400 is detected by the vortex-induced vibration detector 300, and the controller obtains a vibration signal detected by the vortex-induced vibration detector 300.
The controller may be electrically connected to the driver, and when the controller determines that the acquired vortex-induced vibration signal of the blade 400 is less than or equal to the preset signal, the driver driving connection line 200 may be controlled to be shortened first, and after the binding band 110 is loosened, the driver driving connection line 200 may be controlled to be lengthened until the spoiler sheath 100 slides down to the ground or a preset height.
The vortex induced vibration detection device can be additionally provided with an alarm, the alarm is electrically connected with the controller, and when the controller judges that the obtained vortex induced vibration signal of the blade is greater than a preset alarm critical signal, the alarm is controlled to give an alarm to remind a worker to install the turbulence sleeve 100, so that the blade 400 is prevented from being further damaged.
Preferably, the vortex induced vibration detector 300 is mounted to the root end 420 of the blade 400 such that the overall profile of the blade 400 is not readily affected by the vortex induced vibration detector 300.
The vortex induced vibration detector 300 may be a vibration sensor.
The flow-disturbing sleeve 100 can be provided in any one of the following two specific configurations:
first, referring to fig. 1, the mesh cylinder 120 is disposed in the specific structure of the spoiler sleeve 100, and the mesh cylinder 120 is sleeved at the tip portion 410 of the blade 400, so that the mesh cylinder 120 can improve the roughness of the surface of the blade 400, achieve a spoiler effect, and reduce the probability of vortex-induced vibration.
Specifically, the material of the net cylinder 120 may be nylon or cloth, which has certain flexibility, and may be changed adaptively according to the actual shape of the blade 400, so as to facilitate the wearing and taking off, and the blade 400 is not easily scratched.
The mesh shape of the mesh drum 120 may be set to be a polygon such as a triangle, a quadrangle, a pentagon, etc.
Secondly, referring to fig. 2 to 4, a spoiler band 130 and a plurality of spoiler blocks 140 are disposed in a specific structure of the spoiler sleeve 100, the plurality of spoiler blocks 140 are connected in series to the spoiler band 130, and the spoiler band 130 is spirally wound around the tip portion 410 of the blade 400.
Specifically, a rope can be used as the spoiler 130, the material of the spoiler 140 can be foam, plastic or light rubber, and the light material can reduce the gravity of the blade 400 increased by the attached spoiler sleeve 100, thereby reducing the wind energy lost due to the gravity increase and ensuring the wind energy conversion efficiency.
The shape of the spoiler 140 may be a cylinder, a polygon (such as a triangle, a quadrangle, or a pentagon), or other shapes.
The spoiler blocks 140 may be uniformly arranged along the length direction of the spoiler band 130.
The flow-disturbing strips 130 may be provided in several strips, and the several flow-disturbing strips 130 may be uniformly arranged along the circumferential direction of the blade 400.
In particular, the ratio of the length of the flow-disrupting sleeve 100 to the length of the tip portion 410 may be set to 1/3, 3/5, or 2/3.
In addition, still add vortex generator in the vortex induced vibration suppression device that this embodiment provided, install this vortex generator in the trailing edge position of blade 400, make vortex generator be close to the biggest position of the chord length of blade 400 to make vortex generator set up along the axial direction of blade 400, in order to utilize this vortex generator to change the air current direction, thereby, reduce vortex induced vibration, vortex induced vibration can also improve the generated energy at wind turbine generator system operation in-process moreover.
Specifically, the vortex generator may be permanently attached to the blade 400, so that the connection strength between the vortex generator and the blade 400 may be improved and the vortex generator may not easily fall off.
The vortex generators may be made of a lightweight, corrosion resistant material, reducing the impact on the weight of the blade 400 and ensuring a longer service life.
The embodiment also provides a blade assembly, which comprises the vortex-induced vibration suppression device.
Therefore, according to the blade assembly provided by the embodiment, the blade 400 is not easy to generate resonance, so that the blade 400 is not easy to damage due to serious swing; in addition, the spoiler sleeve 100 is also convenient to put on and take off.
The embodiment also provides a wind turbine generator, which comprises the blade assembly.
Therefore, in the wind turbine generator provided by the embodiment, the blade 400 is not easy to resonate, so that the blade 400 is not easy to damage due to serious swinging; in addition, the spoiler sleeve 100 is also convenient to put on and take off.
In summary, the embodiment of the invention discloses a vortex-induced vibration suppression device, a blade assembly and a wind turbine generator, which overcome many technical defects of a traditional wind turbine generator blade. The vortex-induced vibration suppression device, the blade assembly and the wind turbine generator set provided by the embodiment of the invention can greatly relieve the problem that the blade generates resonance due to vortex-induced vibration, so that the blade 400 is not easy to damage due to serious swinging; in addition, the spoiler sleeve 100 is also convenient to put on and take off.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A vortex-induced vibration suppression device is characterized by comprising a flow turbulence sleeve (100), wherein the cross-sectional area of the flow turbulence sleeve (100) is gradually reduced from one end to the other end, and the flow turbulence sleeve (100) is used for wrapping a blade tip part (410) of a blade (400).
2. The vortex induced vibration suppression device according to claim 1, wherein the spoiler sleeve (100) comprises a spoiler body and a binding band (110), the spoiler body is used for wrapping a tip portion (410) of the blade (400), the binding band (110) is connected to one end of the spoiler body with a larger cross-sectional area, the binding band (110) is used for being tightly bound on the blade (400), and the spoiler sleeve (100) can be detached after the binding band (110) is loosened.
3. The vortex induced vibration suppression device according to claim 2, further comprising a connection line (200) and a driver, wherein the driver is configured to be mounted on the blade (400), one end of the connection line (200) is connected to the driver, the other end of the connection line (200) is connected to the loose end of the strap (110), the driver is configured to shorten or lengthen the connection line (200), and the connection line (200) can pull the strap (110) to be loosened when being shortened.
4. The vortex induced vibration suppression device according to claim 3, further comprising a vortex induced vibration detector (300) and a controller, wherein the vortex induced vibration detector (300) is electrically connected with the controller, the vortex induced vibration detector (300) is mounted to the blade (400), and the vortex induced vibration detector (300) is used for detecting a vortex induced vibration signal of the blade (400);
the controller is electrically connected with the driver and is used for controlling the operation of the driver; and/or, the vortex-induced vibration suppression device further comprises an alarm, the alarm is electrically connected with the controller, and the controller is used for controlling the alarm to give an alarm.
5. The vortex induced vibration suppression device according to any one of claims 1-4, wherein said turbulence sleeve (100) comprises a mesh cylinder (120), said mesh cylinder (120) being adapted to fit over a tip portion (410) of said blade (400);
or, the flow disturbing sleeve (100) comprises a flow disturbing belt (130) and a plurality of flow disturbing blocks (140), the flow disturbing blocks (140) are connected in series to the flow disturbing belt (130), and the flow disturbing belt (130) is spirally wound on the blade tip part (410) of the blade (400).
6. The vortex induced vibration suppression device according to claim 5, wherein the material of the mesh cylinder (120) is nylon or cloth;
or the flow disturbing belt (130) is a rope, and the flow disturbing block (140) is made of foam, plastic or light rubber.
7. The vortex induced vibration suppression device according to any of claims 1-4, wherein the ratio of the length of the flow disrupting sleeve (100) to the length of the tip portion (410) is 1/3, 3/5, or 2/3.
8. The vortex induced vibration suppression device according to any one of claims 1 to 4, further comprising a streamlined vortex generator for mounting at a trailing edge portion of the blade (400), the vortex generator being disposed near a portion where a chord length of the blade (400) is largest and in an axial direction of the blade (400).
9. A vane assembly, characterized by comprising a vortex induced vibration suppression device according to any of claims 1-8.
10. Wind turbine comprising a blade assembly according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210286992.3A CN114687960A (en) | 2022-03-23 | 2022-03-23 | Vortex-induced vibration suppression device, blade assembly and wind turbine generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210286992.3A CN114687960A (en) | 2022-03-23 | 2022-03-23 | Vortex-induced vibration suppression device, blade assembly and wind turbine generator |
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| CN114687960A true CN114687960A (en) | 2022-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210286992.3A Pending CN114687960A (en) | 2022-03-23 | 2022-03-23 | Vortex-induced vibration suppression device, blade assembly and wind turbine generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210079896A1 (en) * | 2019-09-18 | 2021-03-18 | General Electric Company | System and method for mitigating vortex-shedding vibrations or stall-induced vibrations on rotor blade of a wind turbine during standstill |
| WO2024208874A1 (en) | 2023-04-03 | 2024-10-10 | Liftra Ip Aps | Method of lifting a wind turbine blade |
-
2022
- 2022-03-23 CN CN202210286992.3A patent/CN114687960A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210079896A1 (en) * | 2019-09-18 | 2021-03-18 | General Electric Company | System and method for mitigating vortex-shedding vibrations or stall-induced vibrations on rotor blade of a wind turbine during standstill |
| US11867156B2 (en) * | 2019-09-18 | 2024-01-09 | General Electric Company | System and method for mitigating vortex-shedding vibrations or stall-induced vibrations on rotor blade of a wind turbine during standstill |
| WO2024208874A1 (en) | 2023-04-03 | 2024-10-10 | Liftra Ip Aps | Method of lifting a wind turbine blade |
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