CN210807158U - Pneumatic anti-resonance photovoltaic tracker - Google Patents
Pneumatic anti-resonance photovoltaic tracker Download PDFInfo
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- CN210807158U CN210807158U CN201921725211.6U CN201921725211U CN210807158U CN 210807158 U CN210807158 U CN 210807158U CN 201921725211 U CN201921725211 U CN 201921725211U CN 210807158 U CN210807158 U CN 210807158U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
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Abstract
The utility model discloses a resonance photovoltaic tracker is prevented to pneumatic type, including photovoltaic support and photovoltaic panel, the photovoltaic panel periphery is equipped with the frame, is equipped with the spoiler on the frame, and spoiler one end is fixed with the frame, and the spoiler is highly higher than the height of spoiler free end with the fixed one end of frame. The utility model provides a resonance photovoltaic tracker is prevented to pneumatic type, simple structure through improving aerodynamic performance, eliminates wind-induced resonance, and protection architecture does not receive the wind-force to destroy.
Description
Technical Field
The utility model belongs to the technical field of the photovoltaic power generation technique and specifically relates to a resonance photovoltaic tracker is prevented to pneumatic type.
Background
In the existing photovoltaic tracker, in order to reduce the windward area of the photovoltaic tracker and reduce the wind load, the angle of the photovoltaic module is usually adjusted to a zero angle under the condition of strong wind, that is, the photovoltaic module is parallel to the ground. Wind-induced resonance is a structural vibration phenomenon caused by wind, and because the photovoltaic tracker is a low-damping and large-span rotating structure, when the angle of the photovoltaic module is in a zero-angle state, and airflow passes through the surface of the photovoltaic module, the wind-induced resonance phenomenon is easy to occur at a low wind speed, so that the structure of the photovoltaic tracker is damaged, and immeasurable loss is caused. In the industry, vibration energy is generally transferred by mechanical measures, and the structural damping of the photovoltaic tracker is improved, so that the vibration reduction effect on a main structure is achieved. The mechanical measures adopt a method of digesting vibration energy, have no direct influence on airflow, belong to the 'temporary solution and permanent solution', and have higher general structure cost.
At present, in a photovoltaic power station project, double-sided power generation photovoltaic modules are increasingly used, and the back sides of the double-sided power generation photovoltaic modules can also absorb solar rays, so that the power generation efficiency of the photovoltaic modules is greatly improved. Because the surface of the photovoltaic module of the photovoltaic tracker is perpendicular to the sunlight in most of time, the illumination received by the back of the photovoltaic module is reduced to a certain extent, and the back power generation function of the double-sided power generation photovoltaic module cannot be fully exerted.
Chinese patent application publication No. CN109469702A, published as 2018, 03, 15, entitled "power circuit breaker spring removal apparatus," discloses a damper, a rotatable photovoltaic panel assembly, and a related method of reducing vibration. The damper includes: a housing having a proximal end and a distal end; a first attachment point proximate the distal end of the housing; a rod having a proximal end and a distal end, the rod being at least partially disposed within the housing and movable between an extended position and a compressed position relative to the housing; a second attachment point proximate the proximal end of the rod; a piston coupled to the stem within the housing proximate the distal end of the stem, the piston including a bypass slot having a flow area defined therein to allow fluid to flow from a first side of the piston to an opposite side of the piston; and a first gasket disposed proximate the first end of the piston and at least partially covering the flow area of the bypass channel. However, the patent uses mechanical measures to transfer the vibration energy, and has relatively complex structure, high cost and no direct influence on the air flow, and the problems still exist.
Disclosure of Invention
The utility model discloses an overcome the method that adopts mechanical structure digestion vibration energy among the prior art, do not have direct influence to the air current, and the higher problem of structural cost all provides a resonance photovoltaic tracker is prevented to the pneumatic type, simple structure, through improving aerodynamic performance, eliminates wind-induced resonance, and protection architecture does not receive the wind power destruction.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a resonance photovoltaic tracker is prevented to pneumatic type, includes photovoltaic support and photovoltaic panel, and photovoltaic panel periphery is equipped with the frame, is equipped with the spoiler on the frame, and spoiler one end is fixed with the frame, and the height that the fixed one end of spoiler and frame is higher than the height of spoiler free end.
The natural frequency of the traditional photovoltaic tracker structure is low, and when the photovoltaic module is placed at 0 degree and is far less than the designed wind speed, the traditional photovoltaic tracker structure begins to vibrate, so that the structure is damaged. Such vibration phenomena are caused by vortex-induced resonance, which occurs when the natural frequency of the photovoltaic tracker coincides with the vortex shedding frequency. Overcoming such damage can be solved by increasing the natural frequency of the structure, adding turbulence devices, increasing the structural damping, and the like. Among the above-mentioned technical scheme, designed the flat unipolar photovoltaic tracker of taking the spoiler, changed the subassembly angle of catching wind when 0 degrees, improved the formation condition of vortex, the natural frequency of structure is directly skipped to the frequency of the formation of vortex to eliminate wind-induced resonance, protect the structure not receive the wind destruction. The spoiler can be arranged in the windward direction of the peripheral square matrix of the photovoltaic tracker, or all the square matrixes are arranged; in the single-row square array, the spoilers can be installed at intervals of assemblies or continuously; the size and the angle of the spoiler can be adjusted according to the sectional characteristics of the overall structure of the photovoltaic tracker.
Preferably, the spoiler surface is provided with a reflective layer which can reflect sunlight.
Among the above-mentioned technical scheme, the spoiler has reflection of light function, can reflect the sunlight that shines its surface to the back of the two-sided electricity generation photovoltaic module of adjacent photovoltaic array to make two-sided electricity generation photovoltaic module receive more illumination, the maximize system improves the generating efficiency.
Preferably, the included angle between the plane of the spoiler and the back of the photovoltaic panel ranges from 135 degrees to 180 degrees. Because the photovoltaic panel is always vertical to the incident direction of sunlight in the power generation process, the included angle between the plane of the spoiler and the back of the photovoltaic panel is 135-180 degrees, and sunlight irradiated on the spoiler can be reflected to the back of the adjacent photovoltaic panel and cannot be reflected to other directions.
Preferably, a connecting plate is arranged at one end of the spoiler connected with the frame, the connecting plate is fixed with the spoiler, and a connecting hole is formed in the connecting plate. The connecting plate is attached to the back of the frame to increase the contact area, so that the spoiler and the frame can be fixed more reliably.
Preferably, the fixing device further comprises a fixing plate and fixing screws, the frame is arranged between the fixing plate and the connecting plate, and the fixing screws sequentially penetrate through the fixing plate, the frame and the connecting holes. The structure can ensure that the spoiler and the frame are more reliably fixed.
Preferably, a supporting plate is arranged at the joint of the spoiler and the connecting plate, a buckle plate is arranged at the upper end of the supporting plate, the supporting plate is fixed with the connecting plate, and the buckle plate is fixed with the supporting plate. The side and the upper end of frame can be laminated to backup pad and buckle, can strengthen joint strength, guarantee the reliability that spoiler and frame are connected.
Preferably, the supporting plate is perpendicular to the connecting plate, and the pinch plate is perpendicular to the supporting plate. The structure can make backup pad, connecting plate and buckle all with the frame laminating, guarantee to connect the reliability.
Preferably, the spoiler, the connecting plate, the supporting plate and the pinch plate are of an integrally formed structure. The integrally formed structure can ensure the connection strength of the spoiler and the accessory structure thereof and is convenient to process.
Preferably, the connecting plate is provided with a structure hole, and the lower end of the supporting plate is arranged at the edge of the structure hole. The structure can facilitate the processing of the spoiler, so that the spoiler, the connecting plate, the supporting plate and the pinch plate can be formed by punching and bending one finished plate, the processing cost is reduced, and the structural strength is enhanced.
The utility model has the advantages that: (1) the wind-induced resonance is eliminated by improving the aerodynamic performance, and the structure is protected from being damaged by wind; (2) the sunlight irradiated to the surface of the double-sided power generation photovoltaic module can be reflected to the back of the double-sided power generation photovoltaic module of the adjacent photovoltaic array, so that the double-sided power generation photovoltaic module can receive more illumination, and the power generation efficiency of the system is improved to the maximum extent; (3) the photovoltaic module with the frame is suitable for photovoltaic modules with frames in various sizes in the market, is in modular design, corresponds to one set of turbulence device, and can be installed and fixed on the edge of a photovoltaic module at any position of a photovoltaic square matrix.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is an enlarged view of a portion of FIG. 2 at B;
fig. 4 is a schematic structural diagram of the spoiler of the present invention.
In the figure: photovoltaic support 1, photovoltaic panel 2, frame 3, spoiler 4, connecting plate 5, connecting hole 5.1, structure hole 5.2, backup pad 6, buckle 7, fixed plate 8, set screw 9.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific embodiments.
Example 1:
as shown in fig. 1, a pneumatic anti-resonance photovoltaic tracker comprises a photovoltaic support 1 and a photovoltaic panel 2, wherein a frame 3 is arranged on the periphery of the photovoltaic panel 2; as shown in fig. 2 and 3, a spoiler 4, a fixing plate 8 and a fixing screw 9 are disposed on the frame 3, a reflecting layer capable of reflecting sunlight is disposed on the surface of the spoiler 4, one end of the spoiler 4 is fixed to the frame 3, and the height of the end of the spoiler 4 fixed to the frame 3 is higher than the height of the free end of the spoiler 4; the included angle between the plane of the spoiler 4 and the back of the photovoltaic panel 2 is 160 degrees;
as shown in fig. 4, a connecting plate 5 is arranged at one end of the spoiler 4 connected with the frame 3, the connecting plate 5 is fixed with the spoiler 4, a connecting hole 5.1 is arranged on the connecting plate 5, a supporting plate 6 perpendicular to the connecting plate 5 is arranged at the joint of the spoiler 4 and the connecting plate 5, a buckle plate 7 perpendicular to the supporting part is arranged at the upper end of the supporting plate 6, the supporting plate 6 is fixed with the connecting plate 5, and the buckle plate 7 is fixed with the supporting plate 6; the frame 3 is arranged between the fixing plate 8 and the connecting plate 5, and the fixing screws 9 sequentially penetrate through the fixing plate 8, the frame 3 and the connecting holes 5.1;
the connecting plate 5 is provided with a structure hole 5.2, the lower end of the supporting plate 6 is arranged at the edge of the structure hole 5.2, and the spoiler 4, the connecting plate 5, the supporting plate 6 and the pinch plate 7 are of an integrally formed structure.
Among the above-mentioned technical scheme, designed the flat unipolar photovoltaic tracker of taking spoiler 4, through improving aerodynamic performance, eliminated wind-induced resonance, protection architecture does not receive wind damage. The spoiler 4 can be arranged in the windward direction of the peripheral square matrix of the photovoltaic tracker, or all the square matrices are arranged; in the single-row square matrix, the spoilers 4 can be installed at intervals of assemblies or continuously; the size and the angle of the spoiler 4 can be adjusted according to the section characteristics of the overall structure of the photovoltaic tracker. The reflecting layer of the spoiler 4 can reflect the sunlight irradiated to the surface of the spoiler to the back of the double-sided power generation photovoltaic module of the adjacent photovoltaic array, so that the double-sided power generation photovoltaic module receives more illumination, and the generating efficiency of the system is improved to the maximum extent.
The utility model has the advantages that: (1) the wind-induced resonance is eliminated by improving the aerodynamic performance, and the structure is protected from being damaged by wind; (2) the sunlight irradiated to the surface of the double-sided power generation photovoltaic module can be reflected to the back of the double-sided power generation photovoltaic module of the adjacent photovoltaic array, so that the double-sided power generation photovoltaic module can receive more illumination, and the power generation efficiency of the system is improved to the maximum extent; (3) the photovoltaic module fixing device is provided with a convenient and fast mounting and fixing buckle plate 7 structure, can be fixed on an aluminum alloy frame 3 of a photovoltaic module, is suitable for photovoltaic modules with frames 3 of various sizes and types in the market, is in modular design, corresponds to one set of turbulence device, and can be mounted and fixed on the edge of the photovoltaic module at any position of a photovoltaic square matrix.
Claims (9)
1. The utility model provides a resonance photovoltaic tracker is prevented to pneumatic type, includes photovoltaic support and photovoltaic panel, and photovoltaic panel periphery is equipped with the frame, and characterized by is equipped with the spoiler on the frame, and spoiler one end is fixed with the frame, and the height that the fixed one end of spoiler and frame is higher than the height of spoiler free end.
2. The pneumatic anti-resonance photovoltaic tracker according to claim 1, wherein the spoiler surface is provided with a reflective layer capable of reflecting sunlight.
3. The pneumatic anti-resonance photovoltaic tracker according to claim 1, wherein an angle between a plane of the spoiler and a back surface of the photovoltaic panel is 135-180 °.
4. The pneumatic anti-resonance photovoltaic tracker according to claim 1, 2 or 3, wherein a connecting plate is disposed at an end of the spoiler connected to the frame, the connecting plate is fixed to the spoiler, and the connecting plate is provided with a connecting hole.
5. The pneumatic anti-resonance photovoltaic tracker according to claim 4, further comprising a fixing plate and fixing screws, wherein the frame is disposed between the fixing plate and the connecting plate, and the fixing screws sequentially pass through the fixing plate, the frame and the connecting holes.
6. The pneumatic anti-resonance photovoltaic tracker according to claim 4, wherein a support plate is provided at the joint of the spoiler and the connecting plate, a buckle plate is provided at the upper end of the support plate, the support plate is fixed to the connecting plate, and the buckle plate is fixed to the support plate.
7. The pneumatic anti-resonance photovoltaic tracker according to claim 6, wherein the support plate is perpendicular to the connection plate, and the buckle plate is perpendicular to the support plate.
8. The pneumatic anti-resonance photovoltaic tracker according to claim 6, wherein the spoiler, the connecting plate, the supporting plate and the buckle are of an integrally formed structure.
9. The pneumatic anti-resonance photovoltaic tracker according to claim 8, wherein the connection plate is provided with a structural hole, and the lower end of the support plate is disposed at the edge of the structural hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725211.6U CN210807158U (en) | 2019-10-15 | 2019-10-15 | Pneumatic anti-resonance photovoltaic tracker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921725211.6U CN210807158U (en) | 2019-10-15 | 2019-10-15 | Pneumatic anti-resonance photovoltaic tracker |
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| Publication Number | Publication Date |
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| CN210807158U true CN210807158U (en) | 2020-06-19 |
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| CN201921725211.6U Active CN210807158U (en) | 2019-10-15 | 2019-10-15 | Pneumatic anti-resonance photovoltaic tracker |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112491348A (en) * | 2020-11-19 | 2021-03-12 | 江苏中信博新能源科技股份有限公司 | Photovoltaic module and photovoltaic tracking bracket system with drag reduction structure |
| CN115800888A (en) * | 2022-12-15 | 2023-03-14 | 华南理工大学 | Marine photovoltaic device with good wind resistance performance based on wing section bionics |
-
2019
- 2019-10-15 CN CN201921725211.6U patent/CN210807158U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112491348A (en) * | 2020-11-19 | 2021-03-12 | 江苏中信博新能源科技股份有限公司 | Photovoltaic module and photovoltaic tracking bracket system with drag reduction structure |
| CN115800888A (en) * | 2022-12-15 | 2023-03-14 | 华南理工大学 | Marine photovoltaic device with good wind resistance performance based on wing section bionics |
| CN115800888B (en) * | 2022-12-15 | 2023-11-17 | 华南理工大学 | Marine photovoltaic device with good wind resistance based on wing section is bionical |
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