CN111350630A - Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper - Google Patents
Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper Download PDFInfo
- Publication number
- CN111350630A CN111350630A CN202010154675.7A CN202010154675A CN111350630A CN 111350630 A CN111350630 A CN 111350630A CN 202010154675 A CN202010154675 A CN 202010154675A CN 111350630 A CN111350630 A CN 111350630A
- Authority
- CN
- China
- Prior art keywords
- wind
- wind wheel
- cantilever
- gyroscope
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000013016 damping Methods 0.000 claims abstract description 39
- 230000009471 action Effects 0.000 claims abstract description 13
- 238000005096 rolling process Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 6
- 230000009467 reduction Effects 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 6
- 238000010248 power generation Methods 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 2
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000013433 optimization analysis Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- 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
- F03D1/02—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having a plurality of rotors
-
- 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
-
- 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
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
-
- 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
-
- 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
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
-
- 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
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
-
- 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
Abstract
The invention discloses a multi-wind-wheel multi-directional energy-collecting type wind power generator tower adopting a multi-dimensional vibration damping device, and belongs to the field of wind power generation and structural earthquake-resistant wind resistance. The device comprises large blades, small blades, a gyroscope vibration damper, a wind wheel connecting device, a blade rotating device, a tower frame, a cantilever tuning vibration damper, a cable for outputting energy, a limiting wall, an outer supporting shaft of the gyroscope, a gyroscope rotor, an inner supporting shaft of the gyroscope, an annular frame cylinder, a universal rolling spherical hinge, a tuning mass block, a cantilever frame, a cantilever section, a transmission system, a gearbox and the like. The wind driven generator tower provides the blades in multiple directions, the stress area of the wind driven generator is increased, and when the wind direction is unstable, the wind energy from all directions is absorbed and converted into electric energy, so that the wind power utilization efficiency can be improved. The vibration damper is combined with the wind power generator to effectively improve the shock resistance of the wind power generator under the action of wind load and earthquake motion, so that the wind power generator tower can perform wind power generation operation more safely and permanently.
Description
Technical Field
The invention relates to a multi-wind wheel multidirectional energy-collecting structure adopting a multi-dimensional vibration damping device for a wind power generator tower, and belongs to the field of wind power generation and structural earthquake and wind resistance.
Background
With the rapid development of economy, the living standard of people is continuously improved, and the demands on various resources and energy sources are increased day by day. Wherein the electrical energy plays an essential role in human daily life. At present, the highest use efficiency and conversion rate is achieved by burning non-renewable resources such as coal, natural gas and the like, the resources are mature in use but are reduced in quantity, and therefore, the seeking of other ways to obtain electric energy is an important engineering problem at present. With the progress of science and technology, people continuously research and develop various renewable resources to carry out electric energy conversion, wherein wind energy is characterized by being clean, environment-friendly and renewable, the distribution range of the wind energy is very wide, and the development of wind power generation can improve the environment, inhibit desertification and reduce the influence caused by sand storm. At present, the traditional wind energy utilization mode is to convert the wind energy into electric energy through a wind power generator tower. Wind power generator towers are generally installed in regions with rich wind energy resources, and are mostly in remote regions far away from urban areas, such as plains with high average wind speed and high wind energy density, coasts and the like. At present, the mainstream wind driven generator is of a single-blade structure, but the natural wind directions in many areas are variable, the wind power is variable, the wind energy utilization efficiency of the wind driven generator with the single blade is low, and the effective collection of wind energy is not facilitated, so that the improvement of the wind energy utilization rate is a work which needs to be developed urgently. Aiming at the problem, the invention provides a multi-wind wheel multi-directional energy collection type wind driven generator tower adopting a multi-dimensional vibration damping device. This wind power generator tower provides the oar piece of a plurality of directions, has increased aerogenerator's lifting surface area, can be when the wind direction is unstable, absorbs the wind energy that comes from all directions simultaneously to turn into the electric energy with it, compare in single oar piece structure, can improve the efficiency that wind-force used greatly.
In addition, the wind power generator tower is a long and thin structure which is high in height, relatively small in cross section and mainly used for transverse load, belongs to a high-rise structure, is small in horizontal rigidity, sensitive to wind load and earthquake action, easy to generate large horizontal deformation, possibly damaged or even collapsed in serious cases, and needs to be improved in vibration resistance and safety. The research on the dynamic characteristics and vibration damping control of the wind turbine tower structure is increasingly gaining attention. The device suitable for damping control of the towering structure at present mainly comprises: viscous dampers, tuned mass dampers, tuned liquid dampers, tuned spring dampers, and the like. The vibration reduction devices are clear in mechanism, and can achieve a good vibration reduction effect through optimization analysis and normal manufacturing and installation. However, the optimal location for controlling the vibration of the towering structure is usually at the top, but the location is flexible and the internal space is limited, resulting in practical constraints for conventional tuned dampers requiring large mass and volume requirements. In view of the above problems, there is a need for a new type of damping device that is otherwise effective in reducing the dynamic response of high-rise structures. A gyroscope is a device designed based on the conservation of angular momentum for sensing and maintaining direction, and has the ability to provide centripetal force and maintain the original center of gravity of the structure. The present invention proposes to use a gyroscope damping device as the damping device. The gyroscope is mainly composed of a gyroscope rotor, a frame, accessories and the like, under the action of power such as hurricane or earthquake and the like, the gyroscope rotor positioned at the axis rotates at extremely high speed, centripetal force, inertia and resistance are generated, and the rotating shaft of the gyroscope rotor points to a fixed direction, and the property is called as axial fixity. The characteristic can effectively reduce the dynamic response of the structure under the action of wind load and earthquake. And the gyroscope vibration damper has small mass and small space occupancy rate, and is suitable for the high-rise structure of the wind driven generator.
Aiming at the high-rise structure with limited internal space of the wind power generator tower, the invention also provides a distributed cantilever tuning vibration damper, which does not need a spring occupying larger space, only forms a tuned mass damper with proper rigidity and tuned mass by that a cantilever section and a tuned mass block are vertical to the direction needing to control deformation and are arranged on the inner wall of the tower, and can be provided with a plurality of devices to realize distributed arrangement due to smaller volume.
According to the invention, the vibration damper of the gyroscope is arranged at the top of the wind power generator tower, and the cantilever tuning vibration damper is arranged on the inner wall of the wind power generator tower. The combination of the two vibration dampers can effectively improve the shock resistance of the wind driven generator under the action of wind load and earthquake motion.
Disclosure of Invention
In order to solve the problem of improving the wind energy utilization rate of a wind driven generator and the anti-seismic performance of a wind driven generator tower, the invention designs the multi-wind wheel multidirectional energy collection type wind driven generator tower adopting the multidimensional vibration damping device. The invention relates to a wind power generator tower which is suitable for areas with large wind power, has a plurality of wind wheels and a plurality of wind directions for rotation, has the functions of vibration resistance and vibration reduction, and can collect and convert wind energy in four directions at the same time and utilize the wind power of the environment to generate electricity to the maximum. The mechanism that a gyroscope rotor rotates at a high speed under a variable frequency motor is used as a balance damper to control the horizontal deformation of the wind power generator tower under the action of wind load and earthquake, and the cantilever tuning vibration reduction device is used for obviously consuming the wind load in the horizontal direction or the energy of earthquake action, so that the dynamic response of the wind power generator tower is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
adopt multidimension damping device's multidirectional collection of multiple wind wheel ability formula wind generator tower mainly includes: the large-scale blade type gyroscope comprises a large-scale blade (1), a small-scale blade (2), a gyroscope vibration damper (3), a wind wheel connecting device (4), a blade rotating device (5), a tower (6), a cantilever tuning vibration damper (7), a cable (8) for outputting energy, a gyroscope vibration damper motor (9), a gyroscope outer frame (10), a gyroscope inner frame (11), a limiting wall (12), a gyroscope outer support shaft (13), a gyroscope rotor (14), a gyroscope inner support shaft (15), an annular frame cylinder (16), a universal rolling ball hinge (17), a tuning mass block (18), a cantilever frame (19), a cantilever section (20), a transmission system (21), a gearbox (22), a generator (23) and a transformer (24). The top of the tower (6) is connected with a wind wheel connecting device (4), the three large blades (1) are connected together through a blade rotating device (5) to form a large wind wheel, the three small blades (2) are connected together through the blade rotating device (5) to form a small wind wheel, and each wind wheel respectively collects energy in the horizontal orthogonal direction. The top of the wind wheel connecting device (4) is provided with a gyroscope damping device (3), the gyroscope damping device (3) is formed by five gyroscopes, and a gyroscope rotor (14) positioned at the axis rotates at a very high speed under the action of power such as hurricane or earthquake, so that centripetal force, inertia and resistance are generated, the rotating shaft of the gyroscope rotor points to a fixed direction, and the dynamic response of the structure under the action of wind load and earthquake can be effectively reduced. A cantilever tuning vibration damper (7) is arranged on the inner wall of a tower frame (6), a cantilever frame (19) is connected with the inner wall of the tower, two cantilever sections (20) extend out of the cantilever frame, tuning mass blocks (18) are connected at two ends of the cantilever frame to form a tuning mass damper with local rigidity combined with mass, so that the horizontal period of the device is consistent with the horizontal direction first period of a generator tower, and the purpose of tuning vibration damping is achieved.
The wind wheel connecting device (4) in the multi-wind wheel multidirectional energy collecting type wind power generator tower adopting the multidimensional vibration damping device has the advantages that the ratio of the length of a large blade (1) to the height of a tower frame (6) is 1: 2-1: 3. The ratio of the length of the small blade (2) to the height of the tower (6) is 1:4 to 1: 5. The wind wheels are symmetrically connected together through a wind wheel connecting device (4). Wherein, the large wind wheel is a main wind energy conversion device, and the small wind wheel is an auxiliary wind energy conversion device. The size ratio of the large wind wheel (1) to the small wind wheel (2) is 1.3: 1-1.6: 1, so that the large wind wheel and the small wind wheel do not collide with each other. The ratio of the length of the large blade (1) to the length of the cantilever of the large wind wheel is 1.2: 1-1.5: 1, and the ratio of the length of the cantilever of the small blade (2) to the length of the cantilever of the small wind wheel is 1.2: 1-1.5: 1.
Each part of the wind wheel connecting device (4) connected with the wind wheel cantilever comprises a transmission system (21), a gearbox (22) and a generator (23), and electric energy finally generated by the generator (23) is transmitted to a power grid through an output energy cable (8) to transmit the electric energy out. A large transformer (24) is arranged in the middle of the wind wheel connecting device (4). The ratio of the width of the wind wheel connecting device (4) to the width of the wind wheel cantilever is 1.1: 1-1.3: 1.
The gyroscope vibration reduction device (3) is formed by five gyroscopes, the gyroscope vibration reduction device (3) is placed at the top of the wind wheel connecting device (4), and the gyroscope vibration reduction device comprises a gyroscope outer frame (10) capable of rotating around a horizontal shaft, a gyroscope inner frame (11) capable of rotating around a horizontal shaft orthogonal to the horizontal shaft, a gyroscope outer support shaft (13) fixed on a limit wall (12), a gyroscope rotor (14) rotating by means of electric power, a gyroscope inner support shaft (15), an annular frame cylinder (16) capable of rotating on a horizontal plane, a universal rolling spherical hinge (17) installed at the bottom of the annular frame cylinder (16), the limit wall (12) fixed on a structure main body, a motor (9) for providing electric power and the like.
The distance between the annular frame cylinder (16) with the diameter of 0.5-1 m and the limiting wall (12) fixed on the structure or the annular frame cylinder is 0.01-0.1 m, and the height of the limiting wall (12) is more than 0.65 times of the height of the annular frame cylinder (16). Ensuring that the annular frame tube does not topple or slip seriously during vibration.
The operation energy of the gyroscope is provided by converting wind energy collected by a wind turbine tower into electric energy. And when the wind speed exceeds 5 m/s, starting the gyroscope, wherein the rotating speed range of the gyroscope is 2000-3000 r/s.
The cantilever tuning vibration damper (7) is connected with the inner wall of the tower through a cantilever frame (19), the cantilever frame extends out of two cantilever sections (20), two ends of the cantilever frame are connected with tuning mass blocks (18), the length of each cantilever section is 0.5-1.5 m, the mass of each tuning mass block (18) is 0.05-0.5% of the total mass of the structure, and the rigidity of each cantilever section needs to enable the horizontal vibration period of the cantilever tuning vibration damper to be consistent with or close to the same direction structure period. At least 4 cantilever tuning vibration dampers (7) can be uniformly arranged on the same horizontal plane in the tower. And the cantilever tuning vibration damper (7) is arranged at different tower heights at least at 3.
The functions of the invention are as follows:
the design of many wind wheels can collect wind energy when the wind direction is undefined more efficient, and wherein large-scale wind wheel and small-size wind wheel are symmetrical arrangement respectively, and large-scale wind wheel and small-size wind wheel do not bump the phenomenon. The large wind wheel is a main wind energy conversion device, and the small wind wheel is an auxiliary wind energy conversion device. Each wind wheel can drive a generator, and wind energy can be fully converted into electric energy. The wind power of a plurality of wind directions of east, west, south, north can be collected respectively to a plurality of wind wheels, greatly increased aerogenerator's wind-force stress area, and large-scale wind wheel size is greatly received the wind area simultaneously and is bigger, and small-size wind wheel size is little, therefore the rotational speed can promote greatly, can reduce the less influence that brings of wind-force. The wind wheels are complementary to each other and are not limited by any wind direction, and the wind energy in all directions can be better collected and converted into electric energy by combining the plurality of wind wheels together.
The gyroscope vibration reduction device adopts a five-gyroscope design, and a gyroscope rotor positioned at the axis rotates at a very high speed to generate a centripetal force, so that a rotating shaft of the gyroscope rotor points to a fixed direction, and a wind driven generator tower is kept balanced and cannot be destabilized. The gyro device in the damper is a two-degree-of-freedom gyro, namely, the gyro device is provided with two frames, namely an outer frame (10) and an inner frame (11), so that a gyro rotor has two rotational degrees of freedom. For a two-degree-of-freedom gyroscope, when a gyroscope rotor rotates around a self-rotating shaft at a high speed and bears impact moment generated by relative rotation of a main body structure around an outer frame shaft (or an inner frame shaft) of the gyroscope, the orientation of the rotor shaft of the gyroscope is not obviously changed, and the rotor shaft only slightly oscillates, so that the gyroscope is stabilized. The two-degree-of-freedom gyroscope has the characteristic of generating interference resisting moment and trying to keep the orientation of the rotation shaft of the gyroscope relative to the inertial space unchanged, namely the coaxiality or stability of the gyroscope. Therefore, when the rotating speed of the gyroscope is large enough, the bending deformation, namely the horizontal displacement, of the structure around the vertical axis can be controlled by utilizing the axis-fixing performance of the gyroscope, so that the structure is prevented from being damaged.
In the twisting direction, the annular frame cylinder provided with the universal rolling ball hinge can rotate around the vertical axis of the structure, so that the rotational inertia moment opposite to the twisting motion of the structure is formed to dissipate the kinetic energy of the structure, and the twisting displacement of the structure can be properly reduced.
Meanwhile, the gyroscope vibration damper is small in mass and space occupation rate, can be arranged at the top of the wind driven generator, and is suitable for the high-rise structure of the wind driven generator tower.
Besides the vibration damper of the gyroscope, a cantilever tuning vibration damper is added, the device is connected with the inner wall of the tower through a cantilever frame, the cantilever frame extends out of two cantilever sections, the cantilever sections have rigidity, and mass blocks are connected at two ends to form a tuning mass damper with local rigidity combined with mass, so that the horizontal period of the device is consistent with the first period of the tower, and the purpose of tuning vibration damping is achieved. 4 are uniformly arranged on the same horizontal plane in the tower, and are arranged at least at three different tower heights, so that the vibration can be effectively reduced in the horizontal direction. The two vibration dampers are combined, so that the overall dynamic response of the wind driven generator tower can be fully reduced, and the anti-seismic performance of the wind driven generator is enhanced.
Compared with the prior art, the invention has the following advantages:
1) according to the wind power generation device, the number of wind wheels is increased, the wind area of the wind power generator tower is increased, the wind energy utilization rate can be increased to a greater extent, and wind in all directions can be absorbed by the wind power generator and converted into electric energy without being limited by the wind direction. Each wind wheel is connected with a generator, so that the efficiency of converting wind energy into electric energy is greatly improved. Meanwhile, the overall balance of the wind turbine tower is improved by the design of multiple wind wheels.
2) The invention adopts a gyroscope damping device, which is a novel damping technology, has small mass and small space occupation range, and for high-rise structures such as wind turbine towers, the vibration is mainly of a first-order vibration mode generally, the optimal control position is usually at the top, but the position is flexible and the inner space is limited, and the gyroscope damping device is an optimal device. The gyroscope is driven by the built-in motor to rotate at a very high speed to generate centripetal force, so that the wind driven generator tower can keep balance and cannot be unstable, the horizontal displacement and the torsional displacement of the tower frame are reduced, and the safety of the wind driven generator tower is improved.
3) According to the invention, not only the gyroscope vibration damper is adopted, but also the cantilever vibration damper is added, the mass blocks at two ends of the cantilever section are combined with the rigidity of the cantilever section to form a tuned mass damper, so that the horizontal period of the device is consistent with the first period of the tower, the purpose of tuned vibration damping is achieved, and the horizontal vibration influence on the tower due to wind load and earthquake action can be more effectively reduced due to the uniform arrangement of multiple sections.
Drawings
FIG. 1 is a three-dimensional effect diagram of a multi-wind wheel multi-directional energy-collecting wind turbine tower adopting a multi-dimensional vibration damping device according to the present invention.
FIG. 2 is a schematic front cross-sectional view of a multi-wind wheel multi-directional energy-collecting wind turbine tower employing a multi-dimensional vibration damping device according to the present invention.
FIG. 3 is a schematic side cross-sectional view of a multi-wind wheel multi-directional energy concentrating wind turbine tower employing a multi-dimensional vibration damping device according to the present invention.
FIG. 4 is a front perspective view of a gyro vibration damper of a multi-wind wheel multi-directional energy concentrating wind turbine tower employing a multi-dimensional vibration damper of the present invention.
FIG. 5 is a front view of the gyro vibration damper of the multi-wind wheel multi-directional energy concentrating wind turbine tower employing the multi-dimensional vibration damper of the present invention.
FIG. 6 is a top view of the gyro vibration damper of the multi-wind wheel multi-directional energy concentrating wind turbine tower employing the multi-dimensional vibration damper of the present invention.
FIG. 7 is a front view of the cantilever vibration damper of the multi-wind wheel multi-directional energy collecting type wind turbine tower using the multi-dimensional vibration damper of the present invention.
FIG. 8 is a sectional view of the wind power generator of the multi-wind wheel multi-directional energy collecting type wind power generator tower using the multi-dimensional vibration damping device according to the present invention.
In the figure: 1-large-scale blade, 2-small-scale blade, 3-gyroscope vibration damper, 4-wind wheel connecting device, 5-blade rotating device, 6-tower, 7-cantilever tuning vibration damper, 8-cable for outputting energy, 9-gyroscope vibration damper motor, 10-gyroscope outer frame, 11-gyroscope inner frame, 12-limit wall, 13-gyroscope outer support shaft, 14-gyroscope rotor, 15-gyroscope inner support shaft, 16-annular frame cylinder, 17-universal rolling ball hinge, 18-tuning mass block, 19-cantilever frame, 20-cantilever section, 21-transmission system, 22-gear box, 23-generator and 24-transformer.
Detailed Description
Example 1:
the following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in fig. 1 and fig. 2, the embodiment of the invention is a multi-wind wheel multi-directional energy collecting wind power generator tower using multi-dimensional vibration damping device, which mainly comprises: the large-scale blade 1, the small-scale blade 2, the gyroscope vibration damper 3, the wind wheel connecting device 4, the blade rotating device 5, the tower 6, the cantilever tuning vibration damper 7 and the cable 8 for outputting energy. The specific implementation steps are as follows:
1) the height of the tower is selected to be 100m, three large blades and a blade rotating device form a large wind wheel, and the diameter of the large wind wheel is 77m, and the two large wind wheels are arranged. The three small blades and the blade rotating device form a small wind wheel, and the diameter of the small wind wheel is 39m, and the number of the small wind wheels is two.
2) The top of the tower is provided with four wind wheel connecting devices, and the large wind wheel and the small wind wheel are respectively and symmetrically arranged, wherein the size ratio of the large wind wheel to the small wind wheel is 2:1, so that the large wind wheel and the small wind wheel are prevented from colliding with each other. The ratio of the length of the large blade to the length of the cantilever of the small wind wheel is 1.5:1, and the length of the cantilever of the large blade to the length of the cantilever of the small wind wheel is 1.5: 1.
3) The wind wheel connecting device and the four wind wheel cantilevers form an engine room, a transmission system, a gearbox and a generator are arranged in each wind wheel cantilever, a large-scale transformer is arranged in the center of the wind wheel connecting device, meanwhile, transformation is carried out on electricity generated by the generators arranged in four directions, and the generated electricity is transmitted to a power grid through an output energy source and a cable to transmit the electricity. Maintenance personnel may enter the nacelle through the wind turbine tower. The four wind wheel cantilevers are respectively connected with the four wind wheels. Forming a complete set of wind driven generator. The blade rotating device at the wind wheel can realize 360-degree rotation of the three blades under the action of wind force. Compared with the common wind driven generator, the wind driven generator can acquire 37.9 percent more electric energy per day on average.
4) The upper part of the wind wheel connecting device is provided with a gyroscope damping device, and the gyroscope damping device shown in figure six comprises an outer gyroscope frame capable of rotating around a horizontal shaft, an inner gyroscope frame capable of rotating around a horizontal shaft orthogonal to the horizontal shaft, an outer gyroscope supporting shaft fixed on a limiting wall, an inner gyroscope supporting shaft, an annular frame cylinder capable of rotating on a horizontal plane, a universal rolling ball hinge arranged at the bottom of the annular frame cylinder, the limiting wall fixed on a structure main body, a motor for providing power and the like. In this example, there are 5 gyros, one of which is located in the middle of the top and the remaining four of which are located at the four corners. The diameter of the gyro rotor is 0.8m, the thickness is 0.2m, and under a normal state, the rotation axis of the gyro rotor is kept in a vertical direction and is ensured to be uniformly and symmetrically arranged in two orthogonal horizontal directions. The motor supplies power to the whole gyro device, the gyro starts to work when the wind speed reaches 5 m/s, all gyro rotors rotate at the same angular speed at a constant speed when moving, and the maximum rotating speed is 3000 r/s. All components may be steel or alloy materials.
5) The cantilever tuning vibration damper is characterized in that a cantilever frame is connected with the inner wall of the tower, two cantilever sections extend out of the cantilever frame, the cantilever sections have rigidity, mass blocks are connected to two ends of the cantilever frame to form a local tuning mass damper combining rigidity and mass, four (at least four) mass dampers are uniformly arranged on the same horizontal plane in the tower, the four horizontal planes (at least three) in the tower height direction are uniformly arranged, the mass block size is 0.8m × 0.8m × 0.8.8 m, and the specific installation position is the position where the cantilever vibration damper is located in the second drawing.
6) The gyroscope vibration damper is combined with the cantilever tuning vibration damper, the vibration damping effect is obviously improved, and the horizontal displacement vibration damping rate reaches 27.2%.
The above is an exemplary embodiment of the present invention, but the implementation of the present invention is not limited thereto.
Claims (7)
1. Adopt multidimension damping device's multidirectional collection of multiple wind wheel ability formula wind generator tower which characterized in that: the top of the tower (6) is connected with a wind wheel connecting device (4), the three large blades (1) are connected together through a blade rotating device (5) to form a large wind wheel, the three small blades (2) are connected together through the blade rotating device (5) to form a small wind wheel, and the large wind wheel and the small wind wheel collect energy in the horizontal orthogonal direction; the top of the wind wheel connecting device (4) is provided with a gyroscope damping device (3), five gyroscopes form the gyroscope damping device (3), and a gyroscope rotor (14) positioned at the axis rotates under the action of hurricane or earthquake dynamic force to generate centripetal force, inertia and resistance force, so that a rotating shaft of the gyroscope rotor (14) points to a fixed direction, and the dynamic response of the structure under the action of wind load and earthquake is reduced; a cantilever tuning vibration damper (7) is arranged on the inner wall of a tower (6), the cantilever tuning vibration damper (7) is connected with the inner wall of the tower (6) through a cantilever frame (19), two cantilever sections (20) extend out of the cantilever frame (19), tuning mass blocks (18) are connected to two ends of the cantilever frame (19), and a tuning mass damper with local rigidity combined with mass is formed, so that the horizontal period of the device is consistent with the first horizontal period of a generator tower, and tuning vibration damping is achieved.
2. The multi-wind wheel multi-directional energy collecting wind power generator tower adopting the multi-dimensional vibration damping device according to claim 1, wherein: the ratio of the length of the large blade (1) to the height of the tower (6) is 1:2 to 1: 3; the ratio of the length of the small blade (2) to the height of the tower (6) is 1: 4-1: 5; the wind wheels are symmetrically connected together through a wind wheel connecting device (4); the large wind wheel is a main wind energy conversion device, and the small wind wheel is an auxiliary wind energy conversion device; the size ratio of the large wind wheel (1) to the small wind wheel (2) is 1.3: 1-1.6: 1, so that the large wind wheel and the small wind wheel do not collide with each other; the ratio of the length of the large blade (1) to the length of the cantilever of the large wind wheel is 1.2: 1-1.5: 1, and the ratio of the length of the cantilever of the small blade (2) to the length of the cantilever of the small wind wheel is 1.2: 1-1.5: 1.
3. The multi-wind wheel multi-directional energy collecting wind power generator tower adopting the multi-dimensional vibration damping device according to claim 1, wherein: each part of the wind wheel connecting device (4) connected with the wind wheel cantilever comprises a transmission system (21), a gearbox (22) and a generator (23), the transmission system (21) is connected with the generator (23) through the gearbox (22), and electric energy generated by the generator (23) is transmitted to a power grid through a cable (8) for outputting energy to transmit the electric energy out; a transformer (24) is arranged in the middle of the wind wheel connecting device (4); the ratio of the width of the wind wheel connecting device (4) to the width of the wind wheel cantilever is 1.1: 1-1.3: 1.
4. The multi-wind wheel multi-directional energy collecting wind power generator tower adopting the multi-dimensional vibration damping device according to claim 1, wherein: the gyroscope vibration reduction device (3) is formed by five gyroscopes, the gyroscope vibration reduction device (3) is placed at the top of the wind wheel connecting device (4), and comprises a gyroscope outer frame (10) capable of rotating around a horizontal shaft, a gyroscope inner frame (11) capable of rotating around a horizontal shaft orthogonal to the horizontal shaft, a gyroscope outer support shaft (13) fixed on a limit wall (12), a gyroscope rotor (14) rotating by means of electric power, a gyroscope inner support shaft (15), an annular frame cylinder (16) capable of rotating on a horizontal plane, a universal rolling spherical hinge (17) installed at the bottom of the annular frame cylinder (16), the limit wall (12) fixed on a structure main body and a motor (9) for providing electric power.
5. The multi-wind wheel multi-directional energy collecting wind power generator tower adopting the multi-dimensional vibration damping device according to claim 1, wherein: the distance between an annular frame cylinder (16) and a limiting wall (12) fixed on a structure or the annular frame cylinder is 0.01-0.1 m between the diameter of a gyro rotor in the gyro vibration damping device (3) and 0.5-1 m, and the height of the limiting wall (12) is more than 0.65 time of the height of the annular frame cylinder (16), so that the annular frame cylinder is ensured not to be seriously overturned or slide in vibration.
6. The multi-wind wheel multi-directional energy collecting wind power generator tower adopting the multi-dimensional vibration damping device according to claim 1, wherein: the gyroscope is provided by electric energy converted from wind energy collected by a wind power generator tower; and when the wind speed exceeds 5 m/s, starting the gyroscope, wherein the rotating speed range of the gyroscope is 2000-3000 r/s.
7. The multi-wind wheel multi-directional energy collecting wind power generator tower adopting the multi-dimensional vibration damping device according to claim 1, wherein: the cantilever frame (19) extends out of two cantilever sections (20), two ends of the cantilever frame are connected with tuning mass blocks (18), the length of each cantilever section is 0.5-1.5 m, the mass of each tuning mass block (18) is 0.05-0.5% of the total mass of the structure, and the rigidity of the cantilever sections needs to enable the horizontal vibration period of the cantilever tuning vibration damper to be consistent with or close to the structure period in the same direction; four cantilever tuning vibration reduction devices (7) are uniformly arranged on the same horizontal plane in the tower; and the cantilever tuning vibration damper (7) is arranged at least at three different tower heights.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010154675.7A CN111350630B (en) | 2020-03-08 | 2020-03-08 | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010154675.7A CN111350630B (en) | 2020-03-08 | 2020-03-08 | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111350630A true CN111350630A (en) | 2020-06-30 |
| CN111350630B CN111350630B (en) | 2021-06-04 |
Family
ID=71195993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010154675.7A Active CN111350630B (en) | 2020-03-08 | 2020-03-08 | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111350630B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007017A (en) * | 2021-03-05 | 2021-06-22 | 嘉兴学院 | Speed limiting and braking device applied to wind driven generator and using method thereof |
| CN114737814A (en) * | 2022-05-22 | 2022-07-12 | 北京工业大学 | Vibration reduction power transmission tower system with composite vibration isolation base and cantilever tuning beam |
| CN114737814B (en) * | 2022-05-22 | 2024-04-12 | 北京工业大学 | Vibration reduction power transmission tower system with composite vibration isolation base and cantilever tuning beam |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208540A (en) * | 1994-01-12 | 1995-08-11 | Mitsubishi Heavy Ind Ltd | Vibrationproof device for cylindrical structure body |
| CN101832358A (en) * | 2010-03-26 | 2010-09-15 | 北京工业大学 | Peg-top vibration-reducing damper for controlling structure to vibrate in multiple dimensions and manufacturing method thereof |
| CN101852188A (en) * | 2010-06-17 | 2010-10-06 | 唐德尧 | Wind-driven generator tower frame shock absorbing device and design method thereof |
| CA2810155A1 (en) * | 2012-03-28 | 2013-09-28 | General Electric Company | Systems and methods for attenuating noise in a wind turbine |
| CN204186539U (en) * | 2014-10-08 | 2015-03-04 | 东方电气集团东方汽轮机有限公司 | A kind of wind-power generating unit tower liquid case vibration damping equipment and wind-power generating unit tower |
| CN105667731A (en) * | 2016-03-31 | 2016-06-15 | 青岛科技大学 | Marine damping device based on gyroscope damping instrument and working method |
| CN105745439A (en) * | 2013-10-28 | 2016-07-06 | 维斯塔斯风力系统有限公司 | Method of damping wind turbine tower oscillations |
| CN207598423U (en) * | 2017-11-27 | 2018-07-10 | 廖兴华 | A kind of dicycly wind power generation plant |
-
2020
- 2020-03-08 CN CN202010154675.7A patent/CN111350630B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07208540A (en) * | 1994-01-12 | 1995-08-11 | Mitsubishi Heavy Ind Ltd | Vibrationproof device for cylindrical structure body |
| CN101832358A (en) * | 2010-03-26 | 2010-09-15 | 北京工业大学 | Peg-top vibration-reducing damper for controlling structure to vibrate in multiple dimensions and manufacturing method thereof |
| CN101852188A (en) * | 2010-06-17 | 2010-10-06 | 唐德尧 | Wind-driven generator tower frame shock absorbing device and design method thereof |
| CA2810155A1 (en) * | 2012-03-28 | 2013-09-28 | General Electric Company | Systems and methods for attenuating noise in a wind turbine |
| CN105745439A (en) * | 2013-10-28 | 2016-07-06 | 维斯塔斯风力系统有限公司 | Method of damping wind turbine tower oscillations |
| CN204186539U (en) * | 2014-10-08 | 2015-03-04 | 东方电气集团东方汽轮机有限公司 | A kind of wind-power generating unit tower liquid case vibration damping equipment and wind-power generating unit tower |
| CN105667731A (en) * | 2016-03-31 | 2016-06-15 | 青岛科技大学 | Marine damping device based on gyroscope damping instrument and working method |
| CN207598423U (en) * | 2017-11-27 | 2018-07-10 | 廖兴华 | A kind of dicycly wind power generation plant |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007017A (en) * | 2021-03-05 | 2021-06-22 | 嘉兴学院 | Speed limiting and braking device applied to wind driven generator and using method thereof |
| CN113007017B (en) * | 2021-03-05 | 2022-02-25 | 嘉兴南湖学院 | Speed limiting and braking device applied to wind driven generator and using method thereof |
| CN114737814A (en) * | 2022-05-22 | 2022-07-12 | 北京工业大学 | Vibration reduction power transmission tower system with composite vibration isolation base and cantilever tuning beam |
| CN114737814B (en) * | 2022-05-22 | 2024-04-12 | 北京工业大学 | Vibration reduction power transmission tower system with composite vibration isolation base and cantilever tuning beam |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111350630B (en) | 2021-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8894348B2 (en) | Wind turbine | |
| CN111219290B (en) | Double-wind-wheel self-rotating wind power generation tower capable of collecting multiple energy sources and reducing vibration and energy consumption | |
| WO2009075872A1 (en) | Vertical axis wind turbine with rotating cantilever shaft | |
| JP2013516564A (en) | Wind power generator | |
| KR102607262B1 (en) | Air compressed vertical wind power generator set | |
| CN101449054B (en) | Horizontal axis wind powered generator | |
| EP2463513B1 (en) | Wind generating device | |
| CN105024586B (en) | A kind of oscillating mode wind generator system | |
| CN111350630B (en) | Multi-wind wheel multi-directional energy collection type wind power generator tower adopting multi-dimensional vibration damper | |
| US20140097082A1 (en) | Wind Turbine for Installation in Buildings | |
| CN111396237A (en) | Spherical underwater robot wave energy capturing system and method based on inertial pendulum | |
| WO2013170450A1 (en) | New power generation device with high-efficiency multi-point wave energy absorption | |
| CN108240286B (en) | The parameter optimization method of floatation type offshore wind generating passive structures control device based on used appearance | |
| CN101749179B (en) | Rectification speed increasing tower used for vertical axis wind turbine | |
| CN201401284Y (en) | Wind power generation group set | |
| CN101539109A (en) | Array type wind power generating group | |
| Chandrashekhar et al. | Design of small scale vertical axis wind turbine | |
| CN102996347A (en) | Side-moment vane fluid energy generator | |
| CN101196172A (en) | Unsteady wind-driven generator | |
| CN203050990U (en) | Vertical shaft offset type wind turbine provided with buffer springs | |
| WO2022254949A1 (en) | Wind power generation device | |
| JP3240297U (en) | wind turbine support bracket | |
| Li et al. | Vibration Control of Large Wind Turbine Blades with Unidirectional Cable Pendulum Damper | |
| JPH05302564A (en) | Device rotated by action of magnetic force and gravitational force | |
| CN206268013U (en) | Sail type wind driven generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |