CN209483859U - Land wind-driven generator tower damping rope - Google Patents
Land wind-driven generator tower damping rope Download PDFInfo
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- CN209483859U CN209483859U CN201920120503.0U CN201920120503U CN209483859U CN 209483859 U CN209483859 U CN 209483859U CN 201920120503 U CN201920120503 U CN 201920120503U CN 209483859 U CN209483859 U CN 209483859U
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- main rope
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- 238000013016 damping Methods 0.000 title claims abstract description 37
- 230000000670 limiting effect Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 12
- 230000036961 partial effect Effects 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000002689 soil Substances 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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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
- 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
- Y02E10/728—Onshore wind turbines
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- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The utility model discloses a kind of land wind-driven generator tower damping ropes.The technical essential of the utility model is that it includes several sets damping rope device for being distributed in around tower, being connected between tower and ground；The damping rope device includes main rope and secondary rope, and main rope and secondary Suo Shangduan are connected with the tower below the inswept face of power-driven generator leaf, and lower end is then connected with the anchor pole of ground anchor；Secondary Suo Chuidu is larger, is mounted on the surface of main rope, and lower end is connected by reseting spring device with the anchor pole of ground anchor；Main rope lower end then passes sequentially through reseting spring device and damper and is connected with the anchor pole of ground anchor；It is connected between main rope and secondary rope by more sunpenders, so that main rope sag is smaller, near linear shape.The utility model is using the vibration displacement on when tower wind-induced vibration and ground, and driving energy-consumption damper consumes tower vibrational energy, so that blower fan tower barrel be inhibited to vibrate.
Description
Technical field
The utility model belongs to wind-driven generator tower antivibration area, and in particular to a kind of land wind generator tower
Cylinder damping rope.
Background technique
Wind-driven generator tower may dance in the air under high wind effect because of whirlpool excitation, fluctuating wind, fan blade, fan blade is to tower week
Phase property blocks, the eccentric rotary of transmission shaft etc. causes the substantially vibration of tower, leads to tower barrel base cracking, tower fatigue rupture etc.
Accident occurs.
In order to obtain bigger wind energy transformation power, cost of electricity-generating is reduced, is realized in the east prosperity city of low wind speed week
Side power generation, the height of tower constantly increases, tower substantially, multiple modal vibrations have become the maximum obstacle of tower height growth.It is existing
There is blower fan tower barrel vibration damping mainly using tuning vibration damping, the principle for tuning vibration damping is to connect one with damper by spring in tower
Mass block by rationally designing the quality of mass block, spring rate and damperparameters, and forms tuned mass damper
(TMD), as shown in Figure 1.In Fig. 1, m is the quality of mass block, and k is spring rate, and c is damper damping, and M is the matter of main structure
Amount, k1 are the main rigidity of structure, and c1 is main structural damping, and F is the power section of wind, fluid equal excitation load suffered by structure,
F0For the amplitude of external excitation, ω is the frequency of external excitation, and t is the time.
When tower generation is substantially vibrated, using resonance principle, i.e. the frequency of TMD is consistent with tower vibration frequency, makes TMD
Generation is substantially vibrated, using the balance of shaking force extrinsic motivated of TMD, to inhibit the vibration of structure.The vibration attenuation mechanism of TMD determines
It is only capable of carrying out vibration damping to the single-order frequency of tower, when the frequency of TMD itself and structural vibration frequency departure, the vibration of TMD
Width is reduced rapidly, its effectiveness in vibration suppression is caused to decline rapidly.Meanwhile with the reduction of structural vibration frequency, inertia force is reduced rapidly,
It is likely difficult to balance extrinsic motivated.Towering tower not only has extremely low fundamental frequency, while the vibration of multistage frequency can occur.
Using energy-consumption damper (including various fluid dampers, frcition damper, rubber cushion assembly, metal damper, electricity
The dissipative cells such as eddy current retarder) mode of vibration damping is only capable of being mounted at tower barrel base since damper size itself is small, and
Tower vibration is mainly shown as that beam type vibrates, and tower lower part vibrates very little, and wave crest is in tower, upper section, is only capable of installing
It can not be played in the effect that tower closes on the energy-consumption damper of base position, thus energy-consumption damper can not inhibit towering tower at present
The wind-induced vibration of cylinder.
Summary of the invention
The purpose of this utility model is that providing a kind of utilization tower charming appearance and behaviour vibration for drawbacks described above existing for present technology
When dynamic and the vibration displacement on ground, driving energy-consumption damper consumes tower vibrational energy, thus the land for inhibiting blower fan tower barrel to vibrate
Upper wind-driven generator tower damping rope.
The purpose of this utility model is realized by the following technical solutions: the land wind-driven generator tower vibration damping
Rope is damped, it includes several sets damping rope device for being distributed in around tower, being connected between tower and ground；The damping rope dress
Set including main rope and secondary rope, main rope and secondary Suo Shangduan are connected with the tower below the inswept face of power-driven generator leaf, lower end then with
The anchor pole of ground anchor is connected；Secondary Suo Chuidu is larger, is mounted on the surface of main rope, and lower end passes through reseting spring device
It is connected with the anchor pole of ground anchor；Main rope lower end then passes sequentially through reseting spring device and damper and ground anchor
Anchor pole be connected；It is connected between main rope and secondary rope by more sunpenders, so that main rope sag is smaller, near linear shape.
Specifically, the reseting spring device of the pair rope lower end includes the pair being connect by secondary rope connector with secondary rope lower end
Rope pull rod, is successively fixed with secondary rope upper limit plate and secondary rope lower limiting board in the anchor pole under secondary rope connector, on secondary rope
Protection cylinder is fixed between limit plate and secondary rope lower limiting board, secondary rope pull rod activity passes through the centre bore rear enclosure of secondary rope upper limit plate
There is secondary rope spring, secondary rope bearing plate is fixed on the secondary rope pull rod of secondary rope spring bottom end, secondary rope spring is located in protection cylinder.
Specifically, the reseting spring device of the main rope lower end includes being drawn by dividing the main rope that plate is connect with main rope lower end
Bar is successively fixed with main rope upper limit plate and main rope lower limiting board in the anchor pole under partial pressure plate, main rope upper limit plate with
Protection cylinder is fixed between main rope lower limiting board, main rope pull rod activity is cased with main rope bullet after the centre bore of main rope upper limit plate
Spring, main rope bearing plate is fixed on the main rope pull rod of main rope spring bottom end, and main rope spring is located in protection cylinder；The main rope lower end
Damper include the damper outer cylinder body being fixed on main rope lower limiting board bottom surface, the upper end activity of damper rod passes through
After the centre bore of main rope lower limiting board, it is connect by main rope connector with main rope pull rod lower end.
Specifically, the ground anchor includes the partial pressure plate affixed with anchor pole bottom end, partial pressure plate is mixed with using reinforcing bar
The anchorage bottom plate cast solid of solidifying soil production, anchorage bottom plate are embedded to subsurface, upper covering sandy soil；It is mixed using reinforcing bar around anchor pole
Solidifying soil is made anchorage wall.
It is formed specifically, the anchor pole is vertically surround using four fining twisted steels, the upper and lower limit of anchor pole and major and minor rope
It is fixed between the plate of position by nut.
Specifically, the damping rope device is three sets, uniformly it is surrounded on around tower.
The utility model have following innovative point and the utility model has the advantages that
(1) inhibit the substantially vibration of tower using ground anchorage.
(2) using big sag, the little Suo power of secondary rope, multiple spot resilient suspension is carried out to main rope, makes main rope at lesser pre-
Near linear is kept under power, there is maximum tension stiffness.
(3) the big rigidity ratio for utilizing main rope and reset spring realizes that larger change occurs for reset spring when tower vibration
Shape, and main rope deformation is smaller.
(4) large deformation for utilizing reset spring, drives damper passive energy dissipation.
(5) pretension and damperparameters appropriate, it is ensured that main rope is always in tensioning state.
(6) anchor force is provided using the gravity of anchorage and sandy soil.
(7) it using fining twisted steel as anchor pole, not only can securely be connect with anchorage, while using four screw-thread steels for anchor
Bar, rigidity is big, easy to install, easy to connect with limit plate, and adjusting also facilitates.
(8) convenient for adjustment Suo Li using limit plate.
Detailed description of the invention
Fig. 1 is the schematic illustration of existing tuned mass damper (TMD).
Fig. 2 is schematic view of facade structure when the utility model embodiment is installed and used.
Fig. 3 be I in Fig. 2 at enlarged drawing.
Fig. 4 is the structural schematic diagram that plate is divided in Fig. 3.
Fig. 5 is the A-A sectional view of Fig. 4.
Fig. 6 is the connection schematic diagram that main rope and secondary rope in rope device are damped in Fig. 2.
Fig. 7 is the structural schematic diagram of ground anchor in Fig. 2.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 2 to Fig. 7, the land wind-driven generator tower damping rope of the present embodiment, it includes being distributed in wind-force
Around the tower 2 of generator 1, three sets of damping rope devices 3 being connected between tower 2 and ground, three sets of damping rope devices 3 are along tower
2, by 120 ° of central angle installations, inhibit the vibration of tower any direction.As can be seen from Fig. 6, damping rope device 3 includes 301 He of main rope
Secondary rope 302, main rope 301 and 302 upper end of secondary rope are connected with tower 2, and (anchorage point is below the inswept face of fan blade of wind-driven generator 1
Home, but move up as far as possible), lower end is then connected with the anchor pole 401 of ground anchor 4；The sag of secondary rope 302 is larger,
It is mounted on the surface of main rope 301, the lower end of secondary rope 302 passes through 401 phase of anchor pole of reseting spring device and ground anchor 4
Even；301 lower end of main rope then passes sequentially through reseting spring device and damper and is connected with the anchor pole 401 of ground anchor 4, and
Pulley can also be added to change the direction Suo Li；It is connected between main rope 301 and secondary rope 302 by more sunpenders 303, sunpender 303 is to main rope
301 form multiple spot resilient suspension, the stretching force of appropriate adjustment main rope 301, secondary rope 302, so that main rope 301 is near linear.
Referring to Fig. 3, in the present embodiment, the reseting spring device of secondary 302 lower end of rope include by secondary rope connector 304 with it is secondary
The secondary rope pull rod 305 of 302 lower end of rope connection, is successively fixed with the secondary rope upper limit in the anchor pole 401 under secondary rope connector 304
Position plate 306 and secondary rope lower limiting board 307, are fixed with protection cylinder 308 between secondary rope upper limit plate 306 and secondary rope lower limiting board 307,
Secondary 305 activity of rope pull rod is cased with secondary rope spring 309 after the centre bore of secondary rope upper limit plate 306, secondary 309 bottom end of rope spring
Secondary rope bearing plate 310 is fixed on secondary rope pull rod 305, secondary rope spring 309 is located in protection cylinder 308.Wherein, secondary rope connector
304 structure is similar with the partial pressure structure of plate 311 as described below.
Referring to Fig. 3, in the present embodiment, the reseting spring device of 301 lower end of main rope includes by partial pressure plate 311 and main rope
The main rope pull rod 312 of 301 lower ends connection, referring to fig. 4, Fig. 5, partial pressure plate 311 are one with centre bore 3111 and multiple lateral opening
3112 disk, 312 upper end of main rope pull rod pass through and centre bore 3111 and are secured with nuts, (or other high-strength by multiply steel strand wires
The material of degree, high rigidity) the per share steel strand wires of main rope 301 of composition pass through and lateral opening 3112 and are fixed with anchorage.Positioned at partial pressure plate
Main rope upper limit plate 313 and main rope lower limiting board 314, main rope upper limit plate 313 are successively fixed in anchor pole 401 under 311
Protection cylinder 315 is fixed between main rope lower limiting board 314,312 activity of main rope pull rod passes through the center of main rope upper limit plate 313
It is cased with main rope spring 316 behind hole, main rope bearing plate 317, main rope bullet are fixed on the main rope pull rod 312 of 316 bottom end of main rope spring
Spring 316 is located in protection cylinder 315.As can be seen from Fig. 3, the damper of 301 lower end of main rope includes being fixed in main rope lower limiting board 314
Damper outer cylinder body 318 on bottom surface, the upper end activity of damper rod 319 pass through the centre bore of main rope lower limiting board 314
Afterwards, it is connect by main rope connector 320 with 312 lower end of main rope pull rod；Main rope connector 320 is an axially longer nut,
The upper end is connect with 312 lower thread of main rope pull rod, and lower end is connect with 319 threaded upper ends of damper rod.In pretightning force
Under the action of, main rope 301 is in tension state, and spring is in pressured state, and the main rope 301 of near linear is because sag is small, thereon
The extensional rigidity (tangential rigidity) of lower anchored end is close to straight line rigidity.
When tower, which bends, to be vibrated, on main rope anchored end between upper limit plate at a distance from generating period variation, it is main
The position of anchored end is high on rope, and the amplitude of vibration displacement is close to tower amplitude peak.Since main rope extensional rigidity is much larger than
Reset spring rigidity, and main rope pulling force and return spring pressure is equal in magnitude, causes the variation of main rope length small, and reset bullet
The length of spring changes greatly.The variation of reset spring length shows as the relative motion of pull rod and limit plate.The vibration band of tower
Fluctuation dampers piston rod derives damper and consumes tower vibrational energy, so that tower be inhibited to shake relative to damper movement of cylinder block
It is dynamic.
Referring to Fig. 7, in the present embodiment, ground anchor 4 includes the partial pressure plate 402 affixed with 401 bottom end of anchor pole, partial pressure
Plate 402 and 403 cast solid of anchorage bottom plate made of armored concrete, anchorage bottom plate 403 are embedded under ground 404, above cover
Lid sandy soil 405；It is made anchorage wall 406 around anchor pole 401 using armored concrete.The gravity of anchorage and sandy soil undertakes resistance
The stretching force of Buddhist nun's rope guarantees anchor pole and main rope, secondary Suo Pinghang, guarantees that under damping cable stretching power effect axial become only occurs for anchor pole
Shape minimizes the generation of anchor pole bending deformation.
For the ease of the connection of anchor pole and damping rope, in the present embodiment, anchor pole 401 uses four vertical rings of fining twisted steel
Around forming, fixed between anchor pole 401 and main rope 301 and the upper and lower limits plate of secondary rope 302 by nut.
It is a specific embodiment of the utility model above, there are also other possible equivalents or classes for the utility model
With modification, such as:
(1) damping Suo Caiyong covers more, installs at tower different height.
(2) secondary rope is not added, directly increasing main cable's tension, similarly has effectiveness in vibration suppression to tower when main rope length is shorter.
(3) using more secondary rope modes.
(4) add connecting strand or energy-consuming device between damping rope, increase damping Suo Benshen lateral stiffness or reduction damps Suo Benshen
Vibration.
(5) change anchorage mode.
(6) when two blower fan tower barrels distance is shorter, Suo Bulian anchorage is damped, is directly attached between two towers, simultaneously
Two towers are inhibited to vibrate.
(7) damping rope vibration damping is equally applicable to tall and slender structure or pylon.
Therefore, in the case where not changing the utility model basic conception, the transformation of any other technical equivalents or
Modification, all should belong to the protection scope of the utility model claims.
Claims (6)
1. a kind of land wind-driven generator tower damping rope, it is characterised in that: it includes being distributed in around tower, being connected to
Several sets between tower and ground damp rope device；The damping rope device includes main rope and secondary rope, main rope and secondary Suo Shangduan and
Tower below power-driven generator leaf is inswept face is connected, and lower end is then connected with the anchor pole of ground anchor；Secondary Suo Chuidu compared with
Greatly, it is mounted on the surface of main rope, lower end is connected by reseting spring device with the anchor pole of ground anchor；Main rope lower end
Reseting spring device and damper is then passed sequentially through to be connected with the anchor pole of ground anchor；It is hung between main rope and secondary rope by more
Bar connection, so that main rope sag is smaller, near linear shape.
2. land wind-driven generator tower damping rope according to claim 1, it is characterised in that: the pair rope lower end
Reseting spring device includes the secondary rope pull rod being connect by secondary rope connector with secondary rope lower end, the anchor under secondary rope connector
It is successively fixed with secondary rope upper limit plate and secondary rope lower limiting board in bar, is fixed between secondary rope upper limit plate and secondary rope lower limiting board
Cylinder is protected, secondary rope pull rod activity is cased with secondary rope spring, the secondary rope of secondary rope spring bottom end after the centre bore of secondary rope upper limit plate
Secondary rope bearing plate is fixed on pull rod, secondary rope spring is located in protection cylinder.
3. land wind-driven generator tower damping rope according to claim 1, it is characterised in that: the main rope lower end
Reseting spring device includes the main rope pull rod being connect by dividing plate with main rope lower end, in the anchor pole under partial pressure plate successively
It is fixed with main rope upper limit plate and main rope lower limiting board, protection cylinder is fixed between main rope upper limit plate and main rope lower limiting board,
Main rope pull rod activity is cased with main rope spring after the centre bore of main rope upper limit plate, consolidates on the main rope pull rod of main rope spring bottom end
It is connected with main rope bearing plate, main rope spring is located in protection cylinder；The damper of the main rope lower end includes being fixed in main rope lower limit
Damper outer cylinder body on board bottom face passes through after the upper end activity of damper rod passes through the centre bore of main rope lower limiting board
Main rope connector is connect with main rope pull rod lower end.
4. land wind-driven generator tower damping rope according to claim 1, it is characterised in that: the ground anchor is fixedly mounted with
It sets and divides plate and the anchorage bottom plate cast solid using armored concrete production, anchor including the partial pressure plate affixed with anchor pole bottom end
Heavy stone used as an anchor bottom plate is embedded to subsurface, upper covering sandy soil；It is made anchorage wall around anchor pole using armored concrete.
5. land wind-driven generator tower damping rope according to claim 1, it is characterised in that: the anchor pole uses four
Root fining twisted steel vertically around forming, is fixed between the upper and lower limits plate of anchor pole and major and minor rope by nut.
6. land wind-driven generator tower damping rope according to claim 1, it is characterised in that: the damping rope device
It is three sets, is uniformly surrounded on around tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920120503.0U CN209483859U (en) | 2019-01-23 | 2019-01-23 | Land wind-driven generator tower damping rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920120503.0U CN209483859U (en) | 2019-01-23 | 2019-01-23 | Land wind-driven generator tower damping rope |
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| Publication Number | Publication Date |
|---|---|
| CN209483859U true CN209483859U (en) | 2019-10-11 |
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ID=68132411
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920120503.0U Expired - Fee Related CN209483859U (en) | 2019-01-23 | 2019-01-23 | Land wind-driven generator tower damping rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209483859U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727698A (en) * | 2021-01-12 | 2021-04-30 | 湖南大学 | Floating type wind turbine mooring system |
| CN112943844A (en) * | 2021-02-25 | 2021-06-11 | 中国华能集团清洁能源技术研究院有限公司 | Tower barrel structure vibration damper of high-flexibility tower wind generating set |
| EP4311936A1 (en) * | 2022-07-29 | 2024-01-31 | Siemens Gamesa Renewable Energy A/S | Damping arrangement |
-
2019
- 2019-01-23 CN CN201920120503.0U patent/CN209483859U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112727698A (en) * | 2021-01-12 | 2021-04-30 | 湖南大学 | Floating type wind turbine mooring system |
| CN112943844A (en) * | 2021-02-25 | 2021-06-11 | 中国华能集团清洁能源技术研究院有限公司 | Tower barrel structure vibration damper of high-flexibility tower wind generating set |
| CN112943844B (en) * | 2021-02-25 | 2022-05-03 | 中国华能集团清洁能源技术研究院有限公司 | Tower barrel structure vibration damper of high-flexibility tower wind generating set |
| EP4311936A1 (en) * | 2022-07-29 | 2024-01-31 | Siemens Gamesa Renewable Energy A/S | Damping arrangement |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |