CN217307586U - Flexible photovoltaic support - Google Patents
Flexible photovoltaic support Download PDFInfo
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- CN217307586U CN217307586U CN202220713223.2U CN202220713223U CN217307586U CN 217307586 U CN217307586 U CN 217307586U CN 202220713223 U CN202220713223 U CN 202220713223U CN 217307586 U CN217307586 U CN 217307586U
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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
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Abstract
The utility model discloses a flexible photovoltaic support, including adjusting shape cable and stabilizing cable, wherein, adjust shape cable and be used for providing the reverse resultant force in the second direction opposite with first direction when receiving the first effort to first direction in order to offset first effort; and the stabilizing cable is used for providing a resultant force in the opposite direction in the first direction when receiving a second acting force in the second direction so as to counteract the second acting force.
Description
Technical Field
The utility model relates to a photovoltaic power generation technical field, in particular to flexible photovoltaic support.
Background
In recent years, photovoltaic power generation technology has been rapidly developed, which enables high-quality project land resources to be rapidly consumed. In order to meet the increasingly vigorous market demand and save the investment cost, the main development trend in the field of photovoltaic power generation is to build a centralized photovoltaic power station by utilizing the areas of non-high-quality projects such as mountainous regions, intertidal zones, over-head water pools and the like.
To accommodate such complex terrain and installation environments, large-span flexible photovoltaic mounts have gained increasing attention and application. The large-span flexible support system can fully utilize the space under the large-span flexible support system on one hand, and on the other hand, the large-span flexible support system is low in steel consumption and investment cost, so that the large-span flexible support system is a rapidly developing technology.
The load that photovoltaic module supporting structure bore mainly includes material dead weight, the wind load and the snow load of all directions. The load is transmitted downwards layer by layer through the photovoltaic panel and the support, and the direction of the load can be downwards, upwards or form a certain angle with the horizontal direction. In order to better bear the load, the existing flexible support mostly adopts a single-layer cable structure system and a rigid frame/truss combination, and part of the flexible support is provided with a two-layer cable structure system so as to better bear the downward load.
Although the vertical gravity load and the snow load of subassembly can be born better to current flexible support, nevertheless relatively poor to the bearing capacity of burden wind pressure, and burden wind pressure often can arouse flexible support overall structure's apparent vibration, and then makes flexible support and photovoltaic board subassembly receive destruction under the exogenic action.
SUMMERY OF THE UTILITY MODEL
To prior art's part or whole problem, the utility model provides a flexible photovoltaic support, a serial communication port, include:
the at least two portal frames are distributed at intervals along the east-west direction, wherein each portal frame comprises a vertical column and a cross beam;
a mounting cord comprising:
upper mounting cables, both ends of which are respectively connected to the cross beams of two adjacent portal frames
A mounting post; and
the two ends of the lower mounting cable are respectively connected to second mounting columns on the cross beams of two adjacent door-shaped frames, wherein the second mounting columns are lower than the first mounting columns;
two ends of each shape adjusting cable are connected to the top ends of the upright columns of the two adjacent door-shaped structures respectively, and the shape adjusting cables deviate downwards to form an arc-shaped structure; and
and two ends of each stabilizing cable are respectively connected to the middle sections of the upright columns of the two adjacent door-shaped structures, and the stabilizing cables are deviated upwards to form an arc-shaped structure.
Furthermore, the middle section of the stabilizing cable and the shape adjusting cable share a stay cable.
Further, the flexible photovoltaic support further comprises at least one support truss, the support truss is "Y" shaped, wherein:
two ends of the 'I' part are respectively connected to the shape-adjusting rope and the stabilizing rope; and
the top ends of the V-shaped parts are respectively connected to the upper mounting cable and the lower mounting cable.
Furthermore, the flexible photovoltaic support further comprises anchoring points which are arranged at two ends of the flexible photovoltaic support and are connected with the portal frames at the two ends through anchoring diagonal draw bars.
Further, two ends of the stabilizing cable are connected to the cable guide device on the upright post and connected with the adjacent stabilizing cable.
Further, the outermost stabilizing cable is connected to the top end of the anchoring point through a cable guide device, and an included angle theta exists between a section of the stabilizing cable connected to the top end of the side span pillar and the horizontal plane.
Further, the included angle theta is determined by the total area Av of the photovoltaic panel assembly between two adjacent door-shaped frames, the included angle gamma of the photovoltaic panel assembly with the horizontal plane, the allowable stress [ sigma ] of the stabilizing rope and the cross-sectional area As of the stabilizing rope.
Furthermore, the stand is made for precast tubular pile, or I-steel, or square steel, or round steel, or cast in situ reinforced concrete pile.
Furthermore, the cross beam is made of reinforced concrete beams or I-shaped steel square bars.
The utility model provides a pair of flexible photovoltaic support keeps the stationarity of structure under the effect of different incoming winds through the shape of transferring cable and the stable cable that provides downward counter-force that provides the counter-force that makes progress through setting up under photovoltaic panel component's board. The flexible photovoltaic support can resist vertical loads such as dead weight and snow pressure, can resist positive wind pressure and negative wind pressure again, makes it can keep the horizontality in daily operation, can keep less deformation again when suffering too big wind load, has improved the horizontal stability of structure greatly, has reduced the component fatigue that too big vibration leads to.
Drawings
To further clarify the above and other advantages and features of various embodiments of the present invention, a more particular description of various embodiments of the invention will be rendered by reference to the appended drawings. It is appreciated that these drawings depict only typical embodiments of the invention and are therefore not to be considered limiting of its scope. In the drawings, the same or corresponding parts will be denoted by the same or similar reference numerals for clarity.
Fig. 1 shows a schematic structural view of a prior art large span photovoltaic support;
fig. 2 shows a schematic structural view of a flexible photovoltaic support according to an embodiment of the present invention;
fig. 3 shows a schematic diagram of the force adjustment and transmission of a flexible photovoltaic support under the action of downward load and positive wind according to an embodiment of the present invention;
fig. 4 shows a force adjustment and transmission diagram of a flexible photovoltaic support according to an embodiment of the present invention when a negative wind acts on the flexible photovoltaic support;
fig. 5 shows a schematic structural view of a support truss of a flexible photovoltaic support according to an embodiment of the present invention;
fig. 6 is a schematic structural view illustrating a cable guide of a flexible photovoltaic support according to an embodiment of the present invention;
fig. 7 is a schematic view illustrating an installation position of a mounting cable of a flexible photovoltaic support according to an embodiment of the present invention; and
fig. 8 shows a flow chart of a method for installing a photovoltaic power generation mounting system according to an embodiment of the present invention.
Detailed Description
In the following description, the present invention is described with reference to embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details, or with other alternative and/or additional methods, materials, or components. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention. Similarly, for purposes of explanation, specific numbers, materials, and configurations are set forth in order to provide a thorough understanding of the embodiments of the invention. However, the invention is not limited to these specific details. Further, it should be understood that the embodiments shown in the figures are illustrative representations and are not necessarily drawn to scale.
Reference in the specification to "one embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment.
It should be noted that the embodiment of the present invention describes the process steps in a specific order, however, this is only for illustrating the specific embodiment and does not limit the sequence of the steps. On the contrary, in different embodiments of the present invention, the sequence of the steps can be adjusted according to the adjustment of the process.
In this application, the term "negative wind pressure" means that wind acts on the underside of the component to form an upward lifting force. In the embodiments of the present invention, the photovoltaic panel assembly extends along the east-west direction and faces the south, and therefore, in the present application, the term "positive wind pressure" refers to the south wind, and the term "negative wind pressure" refers to the north wind.
Fig. 1 shows a schematic structural diagram of a large-span photovoltaic support in the prior art. As shown in fig. 1, the existing large-span photovoltaic support mainly includes a rigid frame 001, a mounting cable 002, a shaping cable 003, and an inter-cable support truss 004. The photovoltaic panel assembly is mounted on the mounting cable 002. Under the effect of accent shape cable 003, the large-span photovoltaic support can bear better photovoltaic board subassembly's vertical gravity load and snow load, nevertheless accent shape cable 003 can only bear the effect of pulling, and the ability of bearing the burden wind pressure can only rely on the pretension of installation cable 002 self, but, when great prestressing force has been applyed to the installation cable, can produce too big upwards amount of deflection, and then increase the pulling force of cable itself. In order to solve this problem, the reinforcing photovoltaic support is to the resistance of wind direction wind pressure to avoid wind load and wind pressure to bring the apparent vibration of cable structure system, and then avoid support and photovoltaic board subassembly isotructure to receive destruction under the exogenic action, the utility model provides a flexible photovoltaic support, its stability of cable structure under the effect of different incoming winds is kept with the stability that provides the downward counter-force with the stability cable of the accent shape cable that provides the counter-force that makes progress through setting up under the board. Specifically, the shape adjusting cable is used for providing a reverse resultant force in a second direction opposite to the first direction when receiving a first acting force in the first direction so as to counteract the first acting force; and the stabilizing cable is used for providing a resultant force in the opposite direction in the first direction when receiving a second acting force in the second direction so as to counteract the second acting force. In the embodiment of the present invention, the first direction refers to a forward wind direction, which can also be understood as a downward direction perpendicular to the photovoltaic panel assembly, and the second direction refers to a reverse wind direction, which can also be understood as an upward direction perpendicular to the photovoltaic panel assembly.
The solution of the invention is further described below with reference to the accompanying drawings of the embodiments.
Fig. 2 shows a schematic structural diagram of a flexible photovoltaic support according to an embodiment of the present invention. As shown in fig. 2, a flexible photovoltaic support is used to carry a photovoltaic panel assembly 100 to form a photovoltaic power generation support system. Wherein the photovoltaic panel assembly 100 is mounted on the flexible photovoltaic support and bears downward and upward loads through the shape-adjusting cable 300 and the stabilizing cable 400, respectively.
The flexible photovoltaic support extends east-west and is marked as a row. The flexible photovoltaic supports between different rows may be connected by trusses, as shown in fig. 5. The flexible photovoltaic support comprises at least two portal frames 201, and the photovoltaic panel assembly 100 is installed between two adjacent portal frames 201. In an embodiment of the present invention, the portal frame 201 is composed of two vertical columns and a beam, and can bear the loads of two adjacent span cable bodies, and after the two adjacent span cable bodies are combined, the vertical loads and the horizontal loads under the action of horizontal wind force are mainly formed. In an embodiment of the present invention, the column can be made of precast tubular pile, or i-steel, or square steel, or round steel, or cast-in-place reinforced concrete pile, and the beam can be made of reinforced concrete beam or i-steel square steel.
In an embodiment of the present invention, the photovoltaic panel assembly 100 is disposed between the two portal frames 201 through a mounting cable 500, and both ends of the mounting cable 500 are respectively connected to the cross beams of the two portal frames 201. To ensure that the photovoltaic panel assembly 100 can fully receive sunlight, there is usually a included angle γ between the photovoltaic panel assembly 100 and the horizontal plane, for this reason, in an embodiment of the present invention, the installation cable includes an upper installation cable and a lower installation cable, the upper installation cable and the lower installation cable are arranged horizontally, and there is a height difference between the upper installation cable and the lower installation cable. Specifically, for example, both ends of the lower mounting cable may be directly connected to the cross member, and both ends of the upper mounting cable may be connected to a fixing structure protruding from the cross member. For another example, two ends of the upper mounting cable are respectively connected to a first mounting column on the cross beams of two adjacent portal frames, and two ends of the lower mounting cable are respectively connected to a second mounting column on the cross beams of two adjacent portal frames, wherein the second mounting column is lower than the first mounting column.
Two adjacent door-shaped frames form a span, and the flexible photovoltaic support 200 comprises at least one span. In an embodiment of the present invention, the span of the flexible photovoltaic support is determined by the string of photovoltaic panel assemblies, and is adaptable to the span from 10m to 1000m, and simultaneously, the length of each span included therein may be the same or different, wherein the length of each span, i.e. the distance between two adjacent door-shaped frames may be different from 5 to 50m, and particularly, may be determined according to the latitude and the topographic condition where the flexible photovoltaic support is erected. Furthermore, in a further embodiment of the invention, the distance between the photovoltaic panel assemblies of different rows, i.e. north and south, is also determined according to the latitude and the topographic conditions of the location where the flexible photovoltaic support is erected.
The shape-adjusting cable 300 is used for providing upward return force, and under the action of the self weight of the flexible photovoltaic support and positive wind, tensile force is generated on two sides of the shape-adjusting cable 300 so as to provide upward reverse resultant force at a node. As shown in FIG. 2, two ends of the shaping cable 300 are connected to the top ends of the pillars of two adjacent portal-shaped structures 201, respectively, and the shaping cable 300 is deviated downwards to form an arc-shaped structure. In an embodiment of the present invention, the two ends of the shape-adjusting cable 300 are further provided with an anchorage device, so that the tension of the shape-adjusting cable can be adjusted by the telescopic adjusting function of the anchorage device. In another embodiment of the present invention, at least one first force-bearing node 301 is disposed on the shape-adjusting cable 300, and the distance between the first force-bearing nodes 301 may be equal or different.
The stabilizing cable 400 is used for providing a downward returning force, and when negative wind pressure is applied, tension is generated on two sides of the stabilizing cable 400 so as to provide a downward reverse resultant force at a node. As shown in FIG. 2, both ends of the stabilizing cable 400 are connected to the middle sections of the pillars of two adjacent portal-shaped structures 201, respectively, and the stabilizing cable 400 is upwardly deviated to form an arc-shaped structure. In an embodiment of the present invention, the two ends of the stabilizing cable 400 are connected to the cable guide device on the upright, so that the stabilizing cable 400 in the whole flexible photovoltaic support is a whole. Fig. 6 shows a schematic structural diagram of a cable guide device of a flexible photovoltaic support according to an embodiment of the present invention. As shown in fig. 6, the cable guide may shift the extending direction of the stabilizing cable 400. In an embodiment of the present invention, the two ends of the stabilizing cable 400 are further provided with an anchorage device, so that the tension of the stabilizing cable can be adjusted by the telescopic adjusting function of the anchorage device. In another embodiment of the present invention, at least one second force-bearing node 401 is disposed on the stabilizing cable 400, and the second force-bearing node 401 and the first force-bearing node 301 correspond to each other in the vertical direction.
In one embodiment of the present invention, the stabilizing cable 400, the shaping cable 300 and the installation cable 500 are connected to each other via the supporting truss 304 and transmit load. Fig. 5 shows a schematic structural diagram of a support truss of a flexible photovoltaic support according to an embodiment of the present invention. As shown in fig. 5, the support truss 304 is "Y" shaped. Two ends of the "|" part are respectively connected with the second stress node 401 and the corresponding first stress node 301, so that load transmission is realized. Specifically, the included angle α of the shaping cable 300 at any first stress node 301 is smaller than 180 degrees, the self weight of the flexible photovoltaic support and the positive wind form a downward acting force, the downward acting force is transmitted downward through the supporting truss 304, at this time, the two sides of the shaping cable 300 generate pulling forces so as to provide an upward reverse resultant force at the first stress node 301, the radian β of the stabilizing cable 400 at any second stress node 401 is smaller than 180 degrees, and when upward acting forces such as the negative wind pressure are received, the two sides of the stabilizing cable 400 generate pulling forces so as to provide a downward reverse resultant force at the second stress node 401. Fig. 3 and fig. 4 show respectively that the transfer power schematic diagram when downward load of a flexible photovoltaic support and positive wind act on and the transfer power schematic diagram when negative wind act on of an embodiment of the present invention.
The "V" portion of the support truss 304 is connected to the upper and lower mounting cables, respectively. Specifically, the upper mounting cableA third force-bearing node 511 is further disposed at a position corresponding to the first force-bearing node, a fourth force-bearing node 521 is disposed at a position corresponding to the first force-bearing node, and the top ends of the "V" portions of the supporting truss 304 are respectively connected to the third force-bearing node 511 and the fourth force-bearing node 521. In order to prevent the photovoltaic panel assembly from generating horizontal displacement under the flexible supporting condition of self weight, the horizontal force components of the supporting truss 304 at the third stress node 511 and the fourth stress point 521 are the same, that is, the installation positions of the upper installation cables and the lower installation cables need to satisfy a certain condition. Fig. 7 shows a schematic view of an installation position of a mounting cable of a flexible photovoltaic support according to an embodiment of the present invention. As shown in FIG. 7, when the "V" portion of the support truss 304 is symmetrical with respect to the "I" portion thereof, i.e., the "V" portion is symmetrical with respect to the "I" portion
Then, the above conditions can be satisfied, and at this time:
wherein the content of the first and second substances,
x 1 the horizontal distance between the fourth stress node and the corresponding first stress node or the horizontal distance between the lower mounting cable and the shape adjusting cable can be understood;
x 2 the horizontal distance between the third stress node and the corresponding first stress node, or the horizontal distance between the upper mounting cable and the shaping cable can be understood;
h is the vertical distance between the fourth stress node and the corresponding first stress node, or can be understood as the vertical distance between the lower mounting cable and the shape adjusting cable;
l is the distance between the fourth force-bearing node and the corresponding third force-bearing node, or can be understood as the distance between the lower mounting cable and the upper mounting cable; and
and gamma is the included angle between the plane where the upper mounting cable and the lower mounting cable are located and the horizontal plane of the photovoltaic panel assembly.
In another embodiment of the present invention, the stabilizing cable and the shape-adjusting cable may share one section of the cable in the midspan horizontal segment, that is, at least one second force-receiving node 401 disposed in the middle segment of the stabilizing cable 400 coincides with the corresponding first force-receiving node 301.
In order to better withstand the load, in one embodiment of the invention, an anchor point 202 is also provided. The anchoring points 202 are arranged at two ends of the flexible photovoltaic support and are connected with the portal frames 201 at the two ends through the anchoring diagonal draw bars 221, so that the anchoring diagonal draw bars 221 can bear oblique loads, vertical loads such as dead weight and horizontal loads such as wind load. The anchor points may be, for example, posts, anchor piles, or the like that are completely or partially buried in the ground. In an embodiment of the present invention, the stabilizing cable of the flexible photovoltaic support is a whole, and the direction of the stabilizing cable is adjusted by the cable guide device on the stand to form an arc structure in each span, the two ends of the stabilizing cable are connected to the top ends of the anchoring points, and the included angle θ between the two ends of the stabilizing cable and the horizontal plane can be adjusted by the cable guide device. In one embodiment of the present invention, the allowable stress [ σ ] of the stabilizing rope can be determined according to the total area Av of the photovoltaic panel assembly between two adjacent gate-shaped frames, the included angle γ between the photovoltaic panel assembly and the horizontal plane, and the allowable stress [ σ ] of the stabilizing rope]As, cross-sectional area of the stabilizing wire, air density ρ and statistical probability typical wind speed v 0 Determining the included angle theta:
fig. 8 shows a flow chart of a method for installing a photovoltaic power generation rack system according to an embodiment of the present invention. As shown in fig. 8, a method for installing a photovoltaic power generation rack system includes:
first, at step 801, a stud is installed. Installing a door-shaped frame and a side span strut according to a preset span;
next, at step 802, the mounting cord is installed. According to the calculation method, the installation positions of the upper installation cable and the lower installation cable are determined and installed, then the initial tension with the specified magnitude is applied to enable the upper installation cable and the lower installation cable to be in a horizontal state, and the initial tension is 20-50KN generally;
next, at step 803, the profile adjusting ropes and the support truss are installed. Connecting the shape adjusting cable to the portal frame, and installing a support truss between the installation cable and a stress node of the shape adjusting cable;
next, at step 804, the photovoltaic panel assembly is installed. Mounting the photovoltaic panel assembly on the mounting cable, wherein a certain downwarping is generated;
next, at step 805, the profile cord is adjusted. Adjusting the tension of the shape adjusting cable until the upper deflection of the photovoltaic panel assembly reaches a preset deflection through the telescopic adjusting function of the anchorage devices at the two ends of the shape adjusting cable, so that the photovoltaic panel assembly is in a certain reverse arch upward deflection, wherein the value range of the preset deflection is 1/300-1/150; and
finally, at step 806, a stabilizing cable is installed. And installing a stabilizing cable, and adjusting the tension of the stabilizing cable through the telescopic adjustment function of the anchorage devices at the two ends of the stabilizing cable to enable the stabilizing cable to generate a certain downward tension until the photovoltaic panel assembly is in a horizontal state.
And finishing the installation of the photovoltaic power generation support system, wherein the installation cable, the shape-adjusting cable and the stabilizing cable all have pretension force. The cable is horizontal when no wind load acts, the shape-adjusting cable tension increases to resist the downward external force transmitted from the supporting truss when positive wind load acts, and the stable cable tension increases to resist the upward external force transmitted from the supporting truss when negative wind load acts.
The shape-adjusting cable and the stabilizing cable can be shared in a section of horizontal inhaul cable in the midspan, the shape-adjusting cable is in a high stress state when the inhaul cable has a positive wind pressure effect, and the stabilizing cable is in an initial tension state. When the action of the backward wind exists, the stable rope is in a high stress state, and the rest of the shape adjusting rope except the common section of the middle section is in a loose state. The middle section shares the inhaul cable system, namely the shape adjusting cable and the stabilizing cable can be reduced, the space under the plate is occupied, and more operation space can be provided under the plate for planting, breeding and other operations.
While various embodiments of the present invention have been described above, it should be understood that they have been presented by way of example only, and not limitation. It will be apparent to persons skilled in the relevant art that various combinations, modifications, and changes can be made thereto without departing from the spirit and scope of the invention. Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments, but should be defined only in accordance with the following claims and their equivalents.
Claims (10)
1. A flexible photovoltaic support, comprising:
a cable configured to provide a resultant opposing force in a second direction opposite the first direction to counteract the first force when subjected to the first force in the first direction; and
a stabilizer cable configured to provide a resultant opposing force in a first direction to counteract a second force when subjected to the second force in a second direction.
2. The flexible photovoltaic stent of claim 1, further comprising:
the at least two portal frames are distributed at intervals along the east-west direction, wherein each portal frame comprises a vertical column and a cross beam; and
a mounting cable, comprising:
the two ends of the upper mounting cable are respectively connected to the first mounting columns on the cross beams of the two adjacent door-shaped frames; and
and two ends of the lower mounting cable are respectively connected to second mounting columns on the cross beams of two adjacent door-shaped frames, wherein the second mounting columns are lower than the first mounting columns.
3. The flexible photovoltaic support of claim 2, wherein:
two ends of the shape adjusting cable are respectively connected to the top ends of the upright columns of the two adjacent door-shaped frames, and the shape adjusting cable deviates downwards to form an arc-shaped structure; and
two ends of the stabilizing cable are respectively connected to the middle sections of the upright posts of the two adjacent door-shaped frames, and the stabilizing cable is deviated upwards to form an arc-shaped structure.
4. The flexible photovoltaic stent of claim 1, wherein the mid-section of the stabilizing cable shares a guy cable with the shaping cable.
5. The flexible photovoltaic mount of claim 2, further comprising at least one support truss, the support truss being "Y" shaped, wherein:
two ends of the 'I' part are respectively connected to the shape-adjusting rope and the stabilizing rope; and
the top ends of the V-shaped parts are respectively connected to the upper mounting cable and the lower mounting cable.
6. The flexible photovoltaic mount of claim 2, wherein the upper and lower mounting cables are mounted at locations that satisfy:
wherein the content of the first and second substances,
x 1 the horizontal distance between the lower mounting cable and the shape adjusting cable is obtained;
x 2 the horizontal distance between the upper mounting cable and the shape adjusting cable is obtained;
h is the vertical distance between the lower mounting cable and the shape adjusting cable;
l is the distance between the upper mounting cable and the lower mounting cable; and
gamma is the included angle between the plane of the upper mounting cable and the plane of the lower mounting cable and the horizontal plane.
7. The flexible photovoltaic stent of claim 2, further comprising anchoring points disposed at both ends of the flexible photovoltaic stent and connected to the portal frames at both ends by anchoring diagonal tie bars.
8. The flexible photovoltaic support of claim 1, wherein the stabilizing cables are connected at both ends to cable guides on the columns and to adjacent stabilizing cables.
9. The flexible photovoltaic stent of claim 7, wherein the outermost stabilizing cables are connected to the top ends of the anchoring points via cable guides, and wherein a section of the stabilizing cables connected to the top ends of the anchoring points is at an angle θ to the horizontal.
10. The flexible photovoltaic stent of claim 9, wherein the angle θ is determined by the total area of the photovoltaic panel assembly Av between two adjacent portal frames, the angle γ of the photovoltaic panel assembly to the horizontal, the allowable stress [ σ ] of the stabilizing cords, the cross-sectional area As of the stabilizing cords:
where ρ is the air density and v is 0 Is a statistically probable typical wind speed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220713223.2U CN217307586U (en) | 2022-03-30 | 2022-03-30 | Flexible photovoltaic support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220713223.2U CN217307586U (en) | 2022-03-30 | 2022-03-30 | Flexible photovoltaic support |
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| CN217307586U true CN217307586U (en) | 2022-08-26 |
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| CN202220713223.2U Active CN217307586U (en) | 2022-03-30 | 2022-03-30 | Flexible photovoltaic support |
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