CN116538018A - Wind power generation device and system - Google Patents

Wind power generation device and system Download PDF

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Publication number
CN116538018A
CN116538018A CN202310752468.5A CN202310752468A CN116538018A CN 116538018 A CN116538018 A CN 116538018A CN 202310752468 A CN202310752468 A CN 202310752468A CN 116538018 A CN116538018 A CN 116538018A
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CN
China
Prior art keywords
wind power
wind
rigidity
conversion device
power conversion
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.)
Pending
Application number
CN202310752468.5A
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Chinese (zh)
Inventor
邹洽宇
黄燕艳
赵淑玉
董红坤
胡志明
王红霞
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Tongda Electromagnetic Energy Co ltd
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Tongda Electromagnetic Energy Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tongda Electromagnetic Energy Co ltd filed Critical Tongda Electromagnetic Energy Co ltd
Priority to CN202310752468.5A priority Critical patent/CN116538018A/en
Publication of CN116538018A publication Critical patent/CN116538018A/en
Pending legal-status Critical Current

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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
    • 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
    • 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
    • F03D5/00—Other 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
    • F03D7/00—Controlling wind motors 
    • 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

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Wind Motors (AREA)

Abstract

The application relates to wind power generation field, discloses a wind power generation set and system, include: the wind power conversion device comprises a sensor, a controller and a wind power conversion device; the wind power conversion device comprises an energy harvesting wind cylinder, a generator and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder, and a second end of the support rod is connected with the generator; the controller is connected with the sensor to acquire wind speed information sent by the sensor and determine target rigidity according to the wind speed information; the controller is connected with the wind power conversion device to obtain rigidity influence factors influencing the wind power conversion device, and each rigidity influence factor is adjusted according to the target rigidity. According to the wind power generation device, the controller is used for determining the target rigidity of the wind power conversion device according to the wind speed information, and each rigidity influence factor of the wind power conversion device is adjusted according to the target rigidity, so that the rigidity of the wind power conversion device corresponds to the wind speed, the wind power generation device can work normally at different wind speeds, and the power generation efficiency is improved.

Description

Wind power generation device and system
Technical Field
The present application relates to the field of wind power generation, and in particular, to a wind power generation apparatus and system.
Background
Wind energy has a very large application prospect in the current era with outstanding environmental protection problems as a clean energy source, and along with the development of energy storage technology, wind energy is more and more valued by people, and the full utilization of wind energy for power generation is a very significant measure. The current wind power generation device is mainly a large wind power generation unit, the power generation of the large wind power generation unit is larger, but the large wind power generation unit has higher requirements on the environment, and the equipment investment cost and the later maintenance cost are high. Accordingly, those skilled in the art are increasingly turning their gaze towards vortex-induced vibration power generation technology.
The vortex-induced vibration generator is a bladeless wind driven generator which is provided by utilizing the karman vortex street phenomenon, and has the advantages of low manufacturing and maintenance cost, compact structure, small noise and the like compared with the traditional wind driven generator. The wind-induced vortex-induced vibration generator generates periodic vortex shedding behind the energy harvesting column when wind passes through the energy harvesting column, and vortex-induced vibration occurs, so that the energy harvesting column is vibrated by alternating transverse force, and the mechanical energy is further utilized and converted into electric energy. However, the generated power of the wind-induced vortex-induced vibration generator is related to the wind speed, the wind speed range which can be adapted to the wind-induced vortex-induced vibration generator is narrow, and when the wind speed changes, the generator can not work normally, so that the generating efficiency of the generator set is affected.
Therefore, how to provide a wind power generation device capable of adapting to different wind speeds so as to improve the power generation efficiency of the power generation device and reduce the power generation cost is a problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The purpose of the application is to provide a wind power generation device and a system, so that the wind power generation device is suitable for different wind speeds, and therefore the power generation efficiency is improved, and the power generation cost is reduced.
In order to solve the above technical problem, the present application provides a wind power generation device, including:
the wind power conversion device comprises a sensor, a controller and a wind power conversion device;
the wind power conversion device comprises an energy harvesting wind cylinder, a generator and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder, and a second end of the support rod is connected with the generator;
the controller is connected with the sensor to acquire wind speed information sent by the sensor and determine target rigidity according to the wind speed information;
the controller is connected with the wind power conversion device to acquire rigidity influence factors influencing the wind power conversion device, and adjusts the rigidity influence factors according to the target rigidity.
Preferably, the stiffness-influencing factor of the wind power conversion device includes: the length of the support rod, the outer diameter of the energy harvesting wind cylinder and the rigidity of the generator.
Preferably, the support bar comprises a first support bar and a second support bar with telescopic devices;
the first end of the first supporting rod is connected with the energy harvesting wind cylinder, and the second end of the first supporting rod is hinged with the first end of the second supporting rod;
the second end of the second supporting rod is connected with the generator.
Preferably, the generator is a variable stiffness generator;
the permanent magnet mover of the generator is connected with the base of the generator through a variable stiffness spring.
Preferably, the variable rate spring is an air spring.
Preferably, the controller is further configured to: and adjusting the rigidity of the air spring according to the target rigidity so as to change the rigidity of the wind power conversion device.
Preferably, the support frame further comprises: the device comprises a mounting flange, a central support column with a telescopic device and a spherical hinge;
the spherical hinge is arranged on the ground, and the mounting flange is arranged on the central support column;
the first end of the center support column is connected with the spherical hinge, a third support rod and a hydraulic oil cylinder are further arranged on the center support column, the first end of the third support rod is connected with the hydraulic oil cylinder, and the second end of the third support rod is connected with the inner wall of the energy harvesting wind cylinder;
the mounting flange is used for fixing the energy harvesting wind cylinder.
Preferably, the energy harvesting wind cylinder is of a cylindrical structure with an adjustable inner diameter.
Preferably, the sensor includes: a wind speed sensor and a vibration sensor.
In order to solve the technical problem, the application also provides a wind power generation system which comprises the wind power generation device.
The application provides a wind power generation device, including: the wind power conversion device comprises a sensor, a controller and a wind power conversion device; the wind power conversion device comprises an energy harvesting wind cylinder, a generator and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder, and a second end of the support rod is connected with the generator; the controller is connected with the sensor to acquire wind speed information sent by the sensor and determine target rigidity according to the wind speed information; the controller is connected with the wind power conversion device to obtain rigidity influence factors influencing the wind power conversion device, and adjusts the rigidity influence factors according to target rigidity, so that the rigidity of the wind power conversion device is changed to adapt to the current wind speed. Therefore, according to the technical scheme provided by the application, the target rigidity of the wind power conversion device is determined according to the wind speed information through the controller, and all rigidity influence factors of the wind power conversion device are adjusted according to the target rigidity, so that the rigidity of the wind power conversion device corresponds to the wind speed, the wind power generation device can work normally at different wind speeds, and the power generation efficiency of the wind power generation device is improved.
In order to solve the technical problem, the application also provides a wind power generation system which comprises the wind power generation device, and the effects are the same as those of the wind power generation device.
Drawings
For a clearer description of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a wind power generation device according to an embodiment of the present disclosure;
FIG. 2 is a block diagram of a wind power conversion device according to an embodiment of the present disclosure;
fig. 3 is a structural diagram of a first support bar and a second support bar according to an embodiment of the present application;
FIG. 4 is a block diagram of an adjustable stiffness generator provided in an embodiment of the present application;
FIG. 5 is a top view of an energy harvesting dryer according to an embodiment of the present disclosure;
FIG. 6 is a side view of an energy harvesting dryer according to an embodiment of the present disclosure;
the reference numerals are as follows: the wind power generation device comprises a sensor 1, a controller 2, a wind power conversion device 3, an energy harvesting wind cylinder 4, a generator 5, a permanent magnet rotor S stage 51, a permanent magnet stator N pole 52, an induction coil 53, a stator fixing flange 54, an air spring 55, a motor base 56, a first support rod 6, a telescopic support rod primary arm 61, a telescopic support rod secondary arm 62, a slide block 63, a telescopic support rod hydraulic cylinder 64, a second support rod 7, a mounting flange 8, a central support column 9, a spherical hinge 10 and a third support rod 11.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments herein without making any inventive effort are intended to fall within the scope of the present application.
The core of the application is to provide a wind power generation device and a system, so that the wind power generation device is suitable for different wind speeds, thereby providing power generation efficiency and reducing power generation cost.
In order to provide a better understanding of the present application, those skilled in the art will now make further details of the present application with reference to the drawings and detailed description.
Fig. 1 is a structural diagram of a wind power generation device according to an embodiment of the present application, as shown in fig. 1, the wind power generation device includes: a sensor 1, a controller 2 and a wind power conversion device 3; the wind power conversion device 3 comprises an energy harvesting wind cylinder 4, a generator 5 and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder 4, and a second end of the support rod is connected with the generator 5; the controller 2 is connected with the sensor 1 to acquire wind speed information sent by the sensor 1 and determine target rigidity according to the wind speed information; the controller 2 is connected with the wind power conversion device 3 to obtain rigidity influence factors influencing the wind power conversion device 3, and adjusts the rigidity influence factors according to target rigidity.
It will be appreciated that the factors affecting the stiffness of the wind power conversion device 3 include the structure of the support frame, the stiffness of the generator 5 and the outer diameter of the energy harvesting wind tunnel 4.
In a specific implementation, the sensor 1 is used for acquiring wind speed information at the wind power conversion device 3, so that the controller 2 can adjust the structure of the wind power conversion device 3 according to the wind speed information. When natural wind with a certain wind speed flows through the energy harvesting wind cylinder 4, transverse periodic excitation is caused when vortex periodically falls off, and resonance phenomenon is caused when the periodic excitation is consistent with the self-vibration frequency of the structure. Resulting in vortex shedding. The wind speed when the frequency is equal to the self-vibration frequency of the structure is called as critical wind speed, and the expression is as follows:
wherein v is crit Is the critical wind speed, d is the outer diameter of the energy harvesting wind cylinder at 3/4 height, f i For the ith order natural frequency of the energy harvesting system structure, in practice, only the first order natural frequency, S, is typically considered t Is the Stlahaar number.
When the natural frequency of the structure is adjustable and the real-time wind speed always meets the expression, the energy harvesting system is always in a critical wind speed area, and the power generation system is in a highest-efficiency power generation state.
In this embodiment, the supporting rod is provided with a telescopic device, and the control is performed by controlling the telescopic device to work so as to adjust the structure of the wind power conversion device 3, thereby changing the natural frequency thereof, and achieving the purpose of changing the critical wind speed. It is understood that the support rod may be linear or polygonal, and is not limited herein. When the linear supporting rod is selected, the structure of the supporting frame and the height of the energy harvesting wind barrel from the ground can be adjusted by adjusting the length of the supporting rod and the included angle between the supporting rod and the ground; when the folding line type supporting rod is selected, the structure of the supporting frame can be adjusted by adjusting the supporting rod at the part parallel to the ground, and the structure of the supporting frame and the height of the energy harvesting wind cylinder from the ground can be adjusted simultaneously by adjusting the supporting rod at the part perpendicular to the ground.
In a specific implementation, when the telescopic device of the control support rod works, the length of the support rod is changed, and the volume of the support frame of the wind power conversion device 3 and/or the height of the energy harvesting wind cylinder 4 are also changed, so that the critical wind speed of the wind power conversion device 3 is changed.
The present embodiment provides a wind power generation apparatus including: the wind power conversion device comprises a sensor, a controller and a wind power conversion device; the wind power conversion device comprises an energy harvesting wind cylinder, a generator and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder, and a second end of the support rod is connected with the generator; the controller is connected with the sensor to acquire wind speed information sent by the sensor and determine target rigidity according to the wind speed information; the controller is connected with the wind power conversion device to obtain rigidity influence factors influencing the wind power conversion device, and adjusts the rigidity influence factors according to target rigidity, so that the rigidity of the wind power conversion device is changed to adapt to the current wind speed. Therefore, according to the technical scheme provided by the application, the target rigidity of the wind power conversion device is determined according to the wind speed information through the controller, and all rigidity influence factors of the wind power conversion device are adjusted according to the target rigidity, so that the rigidity of the wind power conversion device corresponds to the wind speed, the wind power generation device can work normally at different wind speeds, and the power generation efficiency of the wind power generation device is improved.
Fig. 2 is a structural diagram of a wind power conversion device provided by an embodiment of the present application, fig. 3 is a structural diagram of a first support rod and a second support rod provided by an embodiment of the present application, and fig. 4 is a structural diagram of a rigidity-adjustable generator provided by an embodiment of the present application; as shown in fig. 2 or fig. 3 and fig. 4, the support rods comprise a first support rod 6 and a second support rod 7 with telescopic devices; the first end of the first supporting rod 6 is connected with the energy harvesting wind cylinder 4, and the second end of the first supporting rod 6 is hinged with the first end of the second supporting rod 7; a second end of the second support bar 7 is connected to the generator 5. The generator 5 is a rigidity variable generator; the permanent magnet mover of the generator 5 is connected with the base of the generator 5 through a variable stiffness spring.
The self-adaptive wind-induced vortex-induced vibration power generation device is shown in fig. 1, in fig. 2, 4 is an energy harvesting wind cylinder, 8 is a mounting flange, 6 is a first support rod, 7 is a second support rod, both the first support rod 6 and the second support rod 7 are telescopic support rods, 9 is a central support column, and 10 is a spherical hinge. The telescopic support rod is shown in fig. 3: the first arm 61 is a telescopic support rod, the second arm 62 is a telescopic support rod, the second support rod 7 is a second support rod, the slide block 63 is a slide block, and the telescopic support rod hydraulic cylinder 64 is a telescopic support rod hydraulic cylinder. The second support bar 7 may have the same structure as the first support bar 6 or may be a simple support leg. The telescopic support rod hydraulic cylinder is connected with the controller 2, and when the rigidity influence factors of the wind power conversion device 3 need to be adjusted, the controller 2 determines the target lengths of the first support rod 6 and the second support rod 7 according to the target rigidity and controls the telescopic support rod hydraulic cylinder to act so as to adjust the length of the support rods.
The longitudinal section of the rigidity-adjustable generator 5 is shown in fig. 4, in fig. 3, 51 is a permanent magnet mover S stage, 52 is a permanent magnet stator N pole, 53 is an induction coil, 54 is a stator fixing flange, 55 is an air spring, and 56 is a motor base. In implementations, the variable rate spring may be a hydro-pneumatic spring, an air spring, or the like. In a specific application scene, the energy harvesting wind cylinder 4 is fixed on the mounting flange 8, the first-stage arm of the telescopic supporting rod is fixed on the mounting flange 8, the permanent magnet rotor is fixed on the bottom of the supporting rod supporting leg, the bottom of the motor permanent magnet rotor is fixed with the air spring, and the bottom of the air spring is fixed on the motor base. As a preferred embodiment, the variable rate spring is an air spring. The controller 2 is also configured to: the stiffness of the air spring is adjusted according to the target stiffness to change the stiffness of the wind power conversion device 3. The controller 2 is connected with the air spring, and when the controller 2 needs to adjust the rigidity of the generator 5, the target rigidity of the air spring is determined according to the target rigidity first, and the air charging amount of the air spring is determined according to the target rigidity of the air spring.
On the basis of the embodiment, the method realizes rigidity adjustment in three ways: the supporting rod stretches and contracts, and the air spring is inflated and deflated to adjust the rigidity.
The stiffness formula of the support rod is as follows:
wherein E is elastic modulus, I is bending-resistant section moment of the support rod, l is span moment of the support rod, and k is rigidity of the support rod. From the above formula, the rigidity of the energy harvesting device can be greatly adjusted by changing the span through the telescopic support rods.
The air spring can change the stiffness of the air spring through inflation and deflation, and the vertical static stiffness formula is as follows:
k in vs Is the air spring stiffness, m is the gas variable coefficient, p is the air spring air pressure, p 0 For reference to atmospheric pressure, S is the air spring effective bearing area, V is the air spring volume, and a is a constant.
Fig. 5 is a top view of an energy harvester according to an embodiment of the present application, and fig. 6 is a side view of an energy harvester according to an embodiment of the present application, where as shown in fig. 5 or fig. 6, the support frame further includes: the mounting flange 8, a central support column 9 with a telescopic device and a spherical hinge; wherein, the spherical hinge is arranged on the ground, and the mounting flange 8 is arranged on the central support column 9; the first end of the central support column 9 is connected with a spherical hinge; the mounting flange 8 is used for fixing the energy harvesting wind drum 4. The energy harvesting wind cylinder 4 is of a cylindrical structure with an adjustable inner diameter. The center support column 9 is also provided with a third support rod 11 and a hydraulic cylinder; the first end of the third supporting rod 11 is connected with a hydraulic oil cylinder, and the second end of the third supporting rod 11 is connected with the inner wall of the energy harvesting wind cylinder 4. The controller 2 can control the action of the hydraulic cylinder to change the length of the third supporting rod 11, so as to drive the outer diameter of the energy harvesting wind cylinder 4 to change. The energy harvesting dryer shown in fig. 5 is a case of the energy harvesting dryer provided in the present application, the energy harvesting dryer has an overlapping portion, and the length of the third support column 11 can be adjusted through the hydraulic cylinder, so that the outer diameter of the energy harvesting dryer is changed. In addition to the structure shown in fig. 5, the energy harvesting wind barrel may have other structures, for example, a plurality of arc iron sheets are utilized to form the energy harvesting wind barrel, and the arc iron sheets are overlapped with each other, which is not described herein.
In a specific implementation, the sensor 1 comprises: a wind speed sensor and a vibration sensor. The wind speed sensor is arranged at the energy capturing wind cylinder to acquire wind speed information at the energy capturing wind cylinder, and the vibration sensor is arranged at the generator to further acquire the wind speed information according to the influence of wind speed on the generator. In a wind power generation scene using the energy harvesting wind cylinder, when wind passes through the energy harvesting wind cylinder, periodical vortex shedding occurs behind the energy harvesting wind cylinder, vortex-induced vibration occurs, so that the energy harvesting wind cylinder is vibrated by alternating transverse force, and the mechanical energy is further utilized and converted into electric energy. Therefore, the vibration sensor is arranged at the generator, vibration data of the generator can be acquired, and the wind speed information can be acquired more accurately by combining the data acquired by the wind speed sensor arranged at the energy harvesting wind cylinder.
In addition, the application also provides a wind power generation system, including above-mentioned wind power generation set outside, still include power transmission equipment, wind power conversion equipment maintenance equipment etc. wind power generation set includes: the wind power conversion device comprises a sensor, a controller and a wind power conversion device; the wind power conversion device comprises an energy harvesting wind cylinder, a generator and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder, and a second end of the support rod is connected with the generator; the controller is connected with the sensor to acquire wind speed information sent by the sensor and determine target rigidity according to the wind speed information; the controller is connected with the wind power conversion device to obtain rigidity influence factors influencing the wind power conversion device, and adjusts the rigidity influence factors according to target rigidity, so that the rigidity of the wind power conversion device is changed to adapt to the current wind speed. Therefore, according to the technical scheme provided by the application, the target rigidity of the wind power conversion device is determined according to the wind speed information through the controller, and all rigidity influence factors of the wind power conversion device are adjusted according to the target rigidity, so that the rigidity of the wind power conversion device corresponds to the wind speed, the wind power generation device can work normally at different wind speeds, and the power generation efficiency of the wind power generation device is improved.
The wind power generation device and system provided by the present application are described in detail above. In the description, each embodiment is described in a progressive manner, and each embodiment is mainly described by the differences from other embodiments, so that the same similar parts among the embodiments are mutually referred. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section. It should be noted that it would be obvious to those skilled in the art that various improvements and modifications can be made to the present application without departing from the principles of the present application, and such improvements and modifications fall within the scope of the claims of the present application.
It should also be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Claims (10)

1. A wind power generation apparatus, comprising:
the wind power generation device comprises a sensor (1), a controller (2) and a wind power conversion device (3);
the wind power conversion device (3) comprises an energy harvesting wind cylinder (4), a generator (5) and a support frame, wherein the support frame comprises a support rod with a telescopic device, a first end of the support rod is connected with the energy harvesting wind cylinder (4), and a second end of the support rod is connected with the generator (5);
the controller (2) is connected with the sensor (1) to acquire wind speed information sent by the sensor (1) and determine target rigidity according to the wind speed information;
the controller (2) is connected with the wind power conversion device (3) to obtain a rigidity influence factor influencing the wind power conversion device (3), and the rigidity influence factor is adjusted according to the target rigidity.
2. Wind power plant according to claim 1, characterized in that the stiffness influencing factors of the wind power conversion device (3) comprise: the length of the supporting rod, the outer diameter of the energy harvesting wind cylinder (4) and the rigidity of the generator (5).
3. Wind power plant according to claim 1, characterized in that the support rods comprise a first support rod (6) with telescopic means and a second support rod (7);
the first end of the first supporting rod (6) is connected with the energy harvesting wind cylinder (4), and the second end of the first supporting rod (6) is hinged with the first end of the second supporting rod (7);
the second end of the second supporting rod (7) is connected with the generator (5).
4. Wind power plant according to claim 1, characterized in that the generator (5) is a variable stiffness generator;
the permanent magnet rotor of the generator (5) is connected with the base of the generator (5) through a spring with variable stiffness.
5. The wind power generation apparatus of claim 4 wherein the variable rate spring is an air spring.
6. Wind power plant according to claim 5, characterized in that the controller (2) is further adapted to: and adjusting the rigidity of the air spring according to the target rigidity so as to change the rigidity of the wind power conversion device (3).
7. Wind power plant according to any of claims 1-6, wherein the support frame further comprises: the device comprises a mounting flange (8), a central support column (9) with a telescopic device and a spherical hinge (10);
the spherical hinge (10) is arranged on the ground, and the mounting flange (8) is arranged on the central support column (9);
the first end of the center support column (9) is connected with the spherical hinge (10), a third support rod (11) and a hydraulic oil cylinder are further arranged on the center support column (9), the first end of the third support rod (11) is connected with the hydraulic oil cylinder, and the second end of the third support rod (11) is connected with the inner wall of the energy harvesting wind cylinder (4);
the mounting flange (8) is used for fixing the energy harvesting wind cylinder (4).
8. Wind power generation device according to claim 7, characterized in that the energy harvesting wind drum (4) is of a cylindrical structure with an adjustable inner diameter.
9. Wind power plant according to claim 1, characterized in that the sensor (1) comprises: a wind speed sensor and a vibration sensor.
10. A wind power generation system comprising a wind power generation device according to any one of claims 1 to 9.
CN202310752468.5A 2023-06-25 2023-06-25 Wind power generation device and system Pending CN116538018A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310752468.5A CN116538018A (en) 2023-06-25 2023-06-25 Wind power generation device and system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310752468.5A CN116538018A (en) 2023-06-25 2023-06-25 Wind power generation device and system

Publications (1)

Publication Number Publication Date
CN116538018A true CN116538018A (en) 2023-08-04

Family

ID=87443858

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310752468.5A Pending CN116538018A (en) 2023-06-25 2023-06-25 Wind power generation device and system

Country Status (1)

Country Link
CN (1) CN116538018A (en)

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