CN113931804A - Double-ring type multifunctional nonlinear energy trap for offshore wind turbine and construction method thereof - Google Patents

Double-ring type multifunctional nonlinear energy trap for offshore wind turbine and construction method thereof Download PDF

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Publication number
CN113931804A
CN113931804A CN202111194520.7A CN202111194520A CN113931804A CN 113931804 A CN113931804 A CN 113931804A CN 202111194520 A CN202111194520 A CN 202111194520A CN 113931804 A CN113931804 A CN 113931804A
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ring
track
track ring
end plate
outer track
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CN202111194520.7A
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CN113931804B (en
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李栋
江浩楠
赖志超
张争玉
周侠凯
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Fuzhou University
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Fuzhou University
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • 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
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/0296—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
    • 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
    • F03D7/00—Controlling wind motors 
    • F03D7/02—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor
    • F03D7/04—Automatic control; Regulation
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • 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
    • Y02E10/727—Offshore wind turbines

Abstract

The invention relates to a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine and a construction method thereof, and the double-ring type multifunctional nonlinear energy trap is characterized in that: a multi-functional non-linear energy trap of dicyclo formula for offshore wind turbine is including being used for with offshore wind turbine fixed connection's bottom end plate and connecting indulging, horizontal track on the bottom end plate, indulge, horizontal track include outer track ring and vertical fixation at the intra-annular inner track ring of outer track ring, the fixed spacing spring that is equipped with in the interior top of outer track ring and inner track ring, the bobble that can roll in the track is equipped with respectively in the body of outer track ring and inner track ring, the fixed piezoelectric film that is equipped with in the inner wall bottom of outer track ring and inner track ring, be equipped with the wind direction wind speed detector with piezoelectric film electric connection between outer track ring and the bottom end plate, this a multi-functional non-linear energy trap of dicyclo formula for offshore wind turbine can to a great extent consume fan vibration energy, reduce the fan damage.

Description

Double-ring type multifunctional nonlinear energy trap for offshore wind turbine and construction method thereof
The technical field is as follows:
the invention relates to a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine and a construction method thereof.
Background art:
the open sea fan is in a severe wind environment and has the characteristics of large wind speed, abrupt wind direction angle change, strong non-stationarity and the like, so that the fan generates severe vibration, the risk of damage and even collapse of the fan is increased, and a fan vibration control device needs to be additionally arranged to effectively control the wind vibration of the fan; in addition, the meteorological monitoring of the open sea wind environment lacks a reliable anemometer tower, and cannot provide enough data for meteorological forecasting of ocean-going shipping, so that the open sea meteorological monitoring is realized.
The invention content is as follows:
the invention aims to provide a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine and a construction method thereof.
The invention relates to a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine, which is characterized in that: including being used for with offshore wind turbine fixed connection's bottom end plate and connecting indulging, horizontal track on the bottom end plate, indulge, horizontal track include outer track ring and vertical fixation at the intra-annular inner rail ring of outer track ring, the fixed spacing spring that is equipped with in the interior top of outer track ring and inner rail ring, the internal bobble that can roll in the track that is equipped with respectively of outer track ring and inner rail ring, the fixed piezoelectric film that is equipped with in inner wall bottom of outer track ring and inner rail ring, be equipped with between outer track ring and the bottom end plate with piezoelectric film electric connection's wind direction wind speed detector, the bobble is carried for wind direction wind speed detector with the produced electric charge of piezoelectric film rolling friction, for wind direction wind speed detector power supply.
Furthermore, the lower parts of the outer track ring and the inner track ring are fixed through a connecting buckle.
Furthermore, coaxial through holes are respectively arranged on the upper wall bodies of the outer track circular ring and the inner track circular ring in a penetrating mode, and bolts and nuts are arranged in the coaxial through holes in a penetrating mode for fixing.
Furthermore, the lateral parts of the outer track ring and the inner track ring are fixedly provided with yaw blades, the yaw blades are in a right trapezoid shape, and the short side of the right trapezoid is fixedly connected with the lateral part of the outer track ring or the inner track ring.
Further, the outer orbital ring and the inner orbital ring are made by 3D printing.
Furthermore, the outer track ring and the inner track ring are formed by splicing two half sheet bodies respectively.
The invention relates to a construction method of a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine, which is characterized by comprising the following steps: the double-ring type multifunctional nonlinear energy trap for the offshore wind turbine comprises a bottom end plate fixedly connected with the offshore wind turbine and longitudinal and transverse rails connected to the bottom end plate, wherein the longitudinal and transverse rails comprise an outer rail ring and an inner rail ring vertically fixed in the outer rail ring, limiting springs are fixedly arranged at the inner tops of the outer rail ring and the inner rail ring, small balls capable of rolling in the rails are respectively arranged in the outer rail ring and the inner rail ring, piezoelectric films are fixedly arranged at the bottoms of the inner walls of the outer rail ring and the inner rail ring, a wind direction and wind speed detector electrically connected with the piezoelectric films is arranged between the outer rail ring and the bottom end plate, and charges generated by rolling friction of the small balls and the piezoelectric films are transmitted to the wind direction and wind speed detector to supply power to the wind direction and wind speed detector;
during construction, 1) preparing a bottom end plate connected with a fan; 2) welding a wind direction and wind speed detector with a bottom end plate; 3) manufacturing longitudinal and transverse track half bodies and yaw blades by adopting 3D metal printing; 4) installing piezoelectric films at the bottoms of the inner walls of the longitudinal and transverse tracks; 5) respectively placing a limiting spring and a small ball at the top and the bottom of the track; 6) sewing the longitudinal and transverse track half bodies along the annular direction; 7) the outer track ring and the inner track ring are connected, wherein the top of the outer track ring is connected through bolts, and the bottom of the outer track ring is connected through connecting buckles.
According to the invention, the piezoelectric film is placed on the inner wall of the bottom of the track ring, and the small balls can be in extrusion contact with the piezoelectric film in the moving process to convert kinetic energy into electric energy, so that a power supply is provided for the wind speed and wind direction acquisition instrument, the energy consumption is reduced, and the function of internal circulation of equipment energy is realized; the yaw blade can adjust the windward angle of the double-ring nonlinear energy trap along with wind, so that the yaw blade is positioned at the angle with the largest wind force, the wind vibration energy is consumed to the maximum extent, and the wind direction and the wind speed monitoring function are realized through the rotation angle and the speed of the yaw blade.
Description of the drawings:
FIG. 1 is a schematic view of the top configuration of the present invention;
FIG. 2 is a schematic view of the A-A cross-sectional configuration of the present invention;
FIG. 3 is a schematic view of the cross-sectional B-B configuration of the present invention;
fig. 4 is a partial configuration diagram of the orbital ring.
The specific implementation mode is as follows:
the process of the present invention is further illustrated in detail by reference to the following examples. It should be noted that the protection scope of the present invention should include, but not be limited to, the technical contents disclosed in the present embodiment.
The invention relates to a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine, which comprises a bottom end plate 9 fixedly connected with the offshore wind turbine and longitudinal and transverse rails 4 connected to the bottom end plate, wherein the longitudinal and transverse rails comprise an outer rail circular ring 401 and an inner rail circular ring 402 vertically fixed in the outer rail circular ring, the outer rail circular ring and the inner rail circular ring are both circular pipes, and the outer rail circular ring and the inner rail circular ring can be formed by winding plastic pipes and steel pipes.
The fixed spacing spring 2 that is equipped with in the interior top of outer track ring and interior track ring, the fixed point position of spacing spring 2 is located spacing spring 2 middle part, outer track ring and interior track ring are internal to be equipped with respectively can be at the interior rolling bobble 6 of track, and bobble 6 strikes spacing spring at the rolling in-process, by spacing spring absorbed energy, the fixed piezoelectric film 10 that is equipped with in inner wall bottom of outer track ring and interior track ring, bobble 6 forms the electric charge at rolling process and piezoelectric film 10 friction or oppression to for the power supply of wind direction wind speed detector.
Be equipped with between outer track ring and the bottom end plate with piezoelectric film electric connection's wind direction wind speed detector 7, outer track ring and a tip connection of wind direction wind speed detector 7, another tip and the bottom end plate of wind direction wind speed detector 7 are connected to under the effect of receiving the wind, outer track ring rotates, and the slew velocity and the direction of outer track ring are promptly by wind direction wind speed detector 7 records.
Further, in order to facilitate fixing, the lower parts of the outer track ring and the inner track ring are fixed through a connecting buckle 5; coaxial through holes are respectively arranged on the upper wall bodies of the outer track circular ring and the inner track circular ring in a penetrating mode, and bolts and nuts 1 are arranged in the coaxial through holes in a penetrating mode for fixing.
Furthermore, for reasonable design, the yaw blades 3 are fixedly arranged on the side portions of the outer track ring and the inner track ring, the yaw blades are in a right trapezoid shape, and the short side of the right trapezoid is fixedly connected with the side portions of the outer track ring or the inner track ring.
Further, for convenience of manufacture, the outer track ring and the inner track ring can be manufactured by 3D printing; the outer track ring and the inner track ring are formed by splicing two half sheet bodies respectively, and the splicing surfaces are circular ring surfaces.
The invention relates to a construction method of a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine, which comprises a bottom end plate fixedly connected with the offshore wind turbine and longitudinal and transverse rails connected with the bottom end plate, wherein the longitudinal and transverse rails comprise an outer rail ring and an inner rail ring vertically fixed in the outer rail ring, the inner tops of the outer rail ring and the inner rail ring are fixedly provided with a limiting spring, small balls capable of rolling in the rails are respectively arranged in the outer rail ring and the inner rail ring, the bottoms of the inner walls of the outer rail ring and the inner rail ring are fixedly provided with piezoelectric films, a wind direction and wind speed detector electrically connected with the piezoelectric films is arranged between the outer rail ring and the bottom end plate, and charges generated by rolling friction between the small balls and the piezoelectric films are transmitted to the wind direction and wind speed detector, to supply power to the wind direction and wind speed detector;
during construction, 1) preparing a bottom end plate connected with a fan; 2) welding a wind direction and wind speed detector with a bottom end plate; 3) manufacturing longitudinal and transverse track half bodies and yaw blades by adopting 3D metal printing; 4) installing piezoelectric films at the bottoms of the inner walls of the longitudinal and transverse tracks; 5) respectively placing a limiting spring and a small ball at the top and the bottom of the track; 6) sewing the longitudinal and transverse track half bodies along the annular direction; 7) the outer track ring and the inner track ring are connected, wherein the top of the outer track ring is connected through bolts, and the bottom of the outer track ring is connected through connecting buckles.
According to the invention, the piezoelectric film is placed on the inner wall of the bottom of the track ring, and the small balls can be in extrusion contact with the piezoelectric film in the moving process to convert kinetic energy into electric energy, so that a power supply is provided for the wind speed and wind direction acquisition instrument, the energy consumption is reduced, and the function of internal circulation of equipment energy is realized; the yaw blade can adjust the windward angle of the double-ring nonlinear energy trap along with wind, so that the yaw blade is positioned at the angle with the largest wind force, the wind vibration energy is consumed to the maximum extent, and the wind direction and the wind speed monitoring function are realized through the rotation angle and the speed of the yaw blade.
The above description is only a preferred embodiment of the present invention, and all equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the present invention.
The double-ring type multifunctional nonlinear energy trap for the offshore wind turbine is a prefabricated component in a factory, and has the advantages of light weight, good processing quality and convenience and quickness in construction; the longitudinal and transverse rails enable the fan to reduce wind vibration in any direction; the small balls can consume the vibration energy of the fan; the piezoelectric film is placed on the inner wall of the circular tube track, and the small balls can be in extrusion contact with the piezoelectric film in the moving process to convert kinetic energy into electric energy so as to provide a power supply for the wind speed and wind direction acquisition instrument, reduce energy consumption and realize the function of internal circulation of equipment energy; the yaw blade can adjust the windward angle of the double-ring nonlinear energy trap to enable the yaw blade to be at the angle with the largest wind power, the wind vibration energy is consumed to the maximum extent, and the wind direction and the wind speed monitoring function are realized through the rotation angle and the speed of the yaw blade.
In order to save the steel consumption, improve the material utilization rate and reduce the cost, the bidirectional tracks (longitudinal and transverse tracks) and the yaw blades can be realized by adopting a 3D metal printing form; in order to reduce the kinetic energy brought by wind vibration in all directions, a longitudinal and a transverse double-track are adopted; in order to further enhance the energy consumption capability of the component, a limiting spring is arranged at the top inside the track; in order to consume wind vibration energy to the maximum extent, a yaw blade is adopted for automatically adjusting the windward angle of the double-ring type nonlinear energy trap to enable the double-ring type nonlinear energy trap to be at the angle with the maximum wind force; in order to realize the meteorological monitoring function of wind direction and wind speed, a wind direction and wind speed detector positioned at the bottom of the support is connected through a yaw blade; in order to provide power for the bottom wind direction and wind speed detector, piezoelectric films are arranged in the longitudinal and transverse double rails, and energy is generated through contact friction between the small balls and the piezoelectric films.

Claims (7)

1. A multi-functional non-linear energy trap of double ring formula for offshore wind turbine which characterized in that: including being used for with offshore wind turbine fixed connection's bottom end plate and connecting indulging, horizontal track on the bottom end plate, indulge, horizontal track include outer track ring and vertical fixation at the intra-annular inner rail ring of outer track ring, the fixed spacing spring that is equipped with in the interior top of outer track ring and inner rail ring, the internal bobble that can roll in the track that is equipped with respectively of outer track ring and inner rail ring, the fixed piezoelectric film that is equipped with in inner wall bottom of outer track ring and inner rail ring, be equipped with between outer track ring and the bottom end plate with piezoelectric film electric connection's wind direction wind speed detector, the bobble is carried for wind direction wind speed detector with the produced electric charge of piezoelectric film rolling friction, for wind direction wind speed detector power supply.
2. The dual ring multifunctional nonlinear energy trap for offshore wind turbines of claim 1, wherein: the outer track ring is fixed with the lower part of the inner track ring through a connecting buckle.
3. The dual ring multifunctional nonlinear energy trap for offshore wind turbines as in claim 1 or 2, wherein: coaxial through holes are respectively arranged on the upper wall bodies of the outer track circular ring and the inner track circular ring in a penetrating mode, and bolts and nuts are arranged in the coaxial through holes in a penetrating mode for fixing.
4. The dual ring multifunctional nonlinear energy trap for offshore wind turbines of claim 3, wherein: the lateral parts of outer track ring and interior track ring are fixed and are equipped with the driftage blade, and this driftage blade shape is right trapezoid, and right trapezoid's minor face and the lateral part fixed connection of outer track ring or interior track ring.
5. The dual ring multifunctional nonlinear energy trap for offshore wind turbines of claim 4, wherein: the outer track ring and the inner track ring are made by 3D printing.
6. The dual ring multifunctional nonlinear energy trap for offshore wind turbines of claim 5, wherein: the outer track ring and the inner track ring are formed by splicing two half sheet bodies respectively.
7. A construction method of a double-ring type multifunctional nonlinear energy trap for an offshore wind turbine is characterized by comprising the following steps: the double-ring type multifunctional nonlinear energy trap for the offshore wind turbine comprises a bottom end plate fixedly connected with the offshore wind turbine and longitudinal and transverse rails connected to the bottom end plate, wherein the longitudinal and transverse rails comprise an outer rail ring and an inner rail ring vertically fixed in the outer rail ring, limiting springs are fixedly arranged at the inner tops of the outer rail ring and the inner rail ring, small balls capable of rolling in the rails are respectively arranged in the outer rail ring and the inner rail ring, piezoelectric films are fixedly arranged at the bottoms of the inner walls of the outer rail ring and the inner rail ring, a wind direction and wind speed detector electrically connected with the piezoelectric films is arranged between the outer rail ring and the bottom end plate, and charges generated by rolling friction of the small balls and the piezoelectric films are transmitted to the wind direction and wind speed detector to supply power to the wind direction and wind speed detector;
during construction, 1) preparing a bottom end plate connected with a fan; 2) welding a wind direction and wind speed detector with a bottom end plate; 3) manufacturing longitudinal and transverse track half bodies and yaw blades by adopting 3D metal printing; 4) installing piezoelectric films at the bottoms of the inner walls of the longitudinal and transverse tracks; 5) respectively placing a limiting spring and a small ball at the top and the bottom of the track; 6) sewing the longitudinal and transverse track half bodies along the annular direction; 7) the outer track ring and the inner track ring are connected, wherein the top of the outer track ring is connected through bolts, and the bottom of the outer track ring is connected through connecting buckles.
CN202111194520.7A 2021-10-13 2021-10-13 Double-ring type multifunctional nonlinear energy trap for offshore wind turbine and construction method thereof Active CN113931804B (en)

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CN117235855A (en) * 2023-09-15 2023-12-15 中国长江三峡集团有限公司 Nonlinear energy trap of wind power tower and control method

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