Tracking type flexible photovoltaic support system and driving mode thereof

Abstract

The invention discloses a tracking type flexible photovoltaic supporting system and a driving mode thereof, and relates to the technical field of photovoltaic equipment, the tracking type flexible photovoltaic supporting system comprises a connecting assembly, a rotary speed reducer and a flexible bearing cable, and the end part of the connecting assembly is provided with a bearing inner ring through an annular bolt group. According to the tracking type flexible photovoltaic support system and the driving mode thereof, the form of the truss girder is innovatively adopted at the end part, and through unique structural design, the bearing capacity and bending deformation resistance of the end part girder are effectively enhanced, the problem of weak end part structure caused by flexible cable tensioning is successfully overcome, stable construction of a large-span support structure is realized, and the construction efficiency is improved. The arrangement of the reinforcing strips further improves the bearing capacity of the connecting assembly, in addition, the tracking technology and the flexible supporting system are combined, the large span is achieved, meanwhile, the solar altitude can be tracked synchronously, the generating capacity of a photovoltaic system is remarkably improved, and the application range is wide. And a new solution is provided for efficient application of photovoltaic equipment in complex terrains and large-area laying scenes.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic equipment, and in particular to a tracking-type flexible photovoltaic support system and a driving method thereof. Background Art

[0002] In the field of photovoltaic equipment technology, some technical solutions similar to flexible photovoltaic support systems already exist on the market, which have, to a certain extent, promoted the application and development of photovoltaic equipment. However, in-depth research and practical verification have revealed that existing similar technologies have many significant drawbacks, among which the small span of the support is one of the key issues that restricts their application scope and efficiency improvement.

[0003] In addition, during the tensioning of the flexible cables, the end beams of the existing support system are unable to effectively resist the tension generated by the flexible cables due to insufficient structural strength, and are prone to bending and deformation, which further limits the increase in the span of the bracket and also affects the long-term stability and safety of the structure. At present, flexible photovoltaic brackets, as emerging fixed brackets, have overcome the shortcomings of traditional brackets such as small span, large steel consumption, and weak terrain adaptability by relying on the large-span support structure formed by tensioning prestressed cables. They are widely used in complex terrains such as mountains, sewage treatment plants, and fish ponds. However, compared with tracking brackets, they have significant shortcomings such as low power generation efficiency and long payback period. In the existing technology, it is impossible to effectively improve the power generation efficiency of flexible photovoltaic brackets while retaining their advantages such as large span, high clearance, and strong adaptability. Summary of the Invention

[0004] The purpose of the present invention is to provide a tracking flexible photovoltaic support system and a driving method thereof to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a tracking flexible photovoltaic support system and a driving method thereof, comprising a connecting assembly, a rotary reducer and a flexible load-bearing cable, the end of the connecting assembly is installed with a bearing inner ring through an annular bolt group, and the outer surface of the bearing inner ring is rotatably connected to the bearing outer ring, and the end of the bearing outer ring is fixedly connected to the first base assembly through an annular bolt group, the rotary reducer is arranged on the other side of the connecting assembly, and a docking ring is provided on the outside of the rotary reducer, and the other side of the docking ring is fixedly connected to the other side of the connecting assembly through an annular bolt group, and a second base assembly is installed on the side of the rotary reducer through an annular bolt group, and a support assembly is fixedly installed on the bottom of the first base assembly, the flexible load-bearing cable is symmetrically fixedly installed on the side of the connecting assembly, and the top of the flexible load-bearing cable is equidistantly installed with a flexible photovoltaic assembly body.

[0006] Furthermore, the connection assembly includes a truss beam, and a connecting strip is embedded and fixedly installed at the bottom of the truss beam, and docking plates are symmetrically fixedly installed at both ends of the connecting strip, and reinforcement strips are embedded and fixedly connected at equal distances inside the truss beam.

[0007] Furthermore, there are two docking plates, and the two docking plates are fixedly connected to the inner ring of the bearing and the inner side of the docking ring respectively through an annular bolt group.

[0008] Furthermore, the first base assembly includes a supporting plate, and a connecting plate is fixedly installed on the top of the supporting plate, and a main support plate is symmetrically fixedly connected to the top of the supporting plate, and a reinforcement plate is fixedly installed on the top of the supporting plate, and the sides of the reinforcement plate are fixedly connected to the sides of the connecting plate, and an auxiliary support plate is symmetrically installed on the top of the supporting plate.

[0009] Furthermore, the sides of the main support plate are fixedly connected to the sides of the connecting plate, and the bottom of the main support plate is fixedly connected to the top of the load-bearing plate, and the connecting plate forms a fixed structure through the main support plate and the load-bearing plate.

[0010] Furthermore, the auxiliary support plates are symmetrically fixedly installed on the other side of the connecting plate, and the auxiliary support plates, the reinforcement plates and the main support plates are alternately arranged.

[0011] Furthermore, the support assembly includes a support column, and the inner surface of the support column is fixedly installed with an inter-column support bar, and the side of the support column is fixedly connected with a reinforcing beam, and the top of the support column is fixedly installed with a load-bearing beam, and the top of the load-bearing beam is fixedly connected to the bottom of the first base assembly and the second base assembly.

[0012] Furthermore, the number of the support columns is two, and the two support columns are symmetrically arranged with the mid-perpendicular line of the reinforcement beam as the symmetry axis, and the two support columns form a fixed structure through the reinforcement beam.

[0013] Furthermore, the ends of the flexible load-bearing cables are fixedly connected to the sides of the truss beams, and the tops of the flexible load-bearing cables are fixedly connected to the bottoms of the flexible photovoltaic module bodies.

[0014] A tracking type flexible photovoltaic support system driving method is applied to the above-mentioned tracking type flexible photovoltaic support system, and the tracking type flexible photovoltaic support system driving method includes the following steps:

[0015] S1. Installation of support system: The staff will fix and install the support assemblies on both sides according to the measured distance based on the number of flexible photovoltaic module bodies to be installed. At this time, the bottom of the bracket column is firmly fixed to the ground, and then the outer ring of the bearing and the slewing reducer are fixed to the inner sides of the first base assembly and the second base assembly respectively through the annular bolt group. Then the truss beam is placed on the top of the load-bearing beam, and then the docking plates at both ends of the connecting bar are fixedly connected to the inner ring of the bearing and the inner side of the docking ring respectively through the annular bolt group. At this time, the main support plate, the reinforcement plate and the auxiliary support plate cooperate with each other to prevent the first base assembly and the second base assembly from tipping over during support. After the four sets of connection assemblies are fixed and installed, the flexible photovoltaic module body is installed at equal distances on the top of the flexible load-bearing cable to complete the overall installation of the flexible photovoltaic support system.

[0016] S2. Tracking operation of the support system: After the support system is installed, the control system is used to drive the slewing reducer to operate. When the slewing reducer starts to operate, it drives the docking ring to rotate. At this time, the rotation of the bearing inner ring inside the bearing outer ring causes the docking plate to drive the connecting bar to rotate. As the connecting components on both sides start to rotate synchronously, the flexible load-bearing cables connected to the side of the truss beam drive the installed flexible photovoltaic component body to rotate synchronously, thereby achieving the purpose of automatically tracking the sun's operation and rotating the angle.

[0017] The present invention provides a tracking flexible photovoltaic support system and a driving method thereof, which have the following beneficial effects:

[0018] 1. The end of the present invention innovatively adopts the form of a truss beam. Through the unique structural design, the load-bearing capacity and resistance to bending deformation of the end beam are effectively enhanced, successfully overcoming the problem of weak end structure caused by flexible cable tensioning, and realizing the stable construction of a large-span support structure. The setting of the reinforcement strip further improves the load-bearing capacity of the connection component. In addition, the present invention also combines tracking technology with the flexible support system. While achieving a large span, it can synchronously track the solar altitude angle, significantly improving the power generation of the photovoltaic system, and providing a new solution for the efficient application of photovoltaic equipment in complex terrain and large-area paving scenarios.

[0019] 2. The present invention sets up a rotary reducer so that the speed of the rotary reducer will not be too fast when the control system drives the rotary reducer to operate, thereby ensuring that the upper surface of the flexible photovoltaic component body can always face the direction of sunlight when the connection component drives the flexible photovoltaic component body to rotate through the flexible load-bearing cable, thereby further improving the photovoltaic power generation time of the support system. Compared with the traditional fixed flexible photovoltaic bracket, it can increase the power generation of the photovoltaic system by more than 10%, effectively shortening the investment return period, and the end adopts a truss beam structure. With its unique mechanical properties, it effectively disperses the tension generated by the flexible cable tensioning, greatly enhancing the end beam's resistance to bending deformation, so that the bracket span can reach 60 meters, and the rigidly spliced ​​bracket columns and the optimized overall structure ensure the stability of the support system in and out of the plane. At the same time, the truss beam structure effectively resists the tension of the flexible cable, extends the service life of the photovoltaic bracket, and reduces the later maintenance cost and safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural diagram of a tracking-type flexible photovoltaic support system and its driving method according to the present invention;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the first base component-support component of a tracking-type flexible photovoltaic support system and its driving method of the present invention;

[0022] Figure 3 This is a schematic diagram of the front-view split three-dimensional structure of a tracking-type flexible photovoltaic support system and its driving method connection component-first base component of the present invention;

[0023] Figure 4 This is a schematic diagram of the rear-view split three-dimensional structure of a connection component-first base component of a tracking-type flexible photovoltaic support system and its driving method according to the present invention;

[0024] Figure 5 A schematic diagram of the three-dimensional structure of a tracking-type flexible photovoltaic support system and its driving mode of the present invention, including support columns and reinforced beams;

[0025] Figure 6 This is a schematic diagram of the three-dimensional structure of the truss beam-butt joint plate of a tracking-type flexible photovoltaic support system and its driving method according to the present invention;

[0026] Figure 7 This is a schematic diagram of the front view of the three-dimensional structure of a tracking flexible photovoltaic support system and its driving method of the rotary reducer of the present invention

[0027] Figure 8 The present invention is a tracking type flexible photovoltaic support system and its driving mode of the bearing plate-connecting plate three-dimensional structure schematic diagram.

[0028] In the figure: 1. Connection assembly; 101. Truss beam; 102. Connection bar; 103. Docking plate; 104. Reinforcement bar; 2. Bearing outer ring; 3. Bearing inner ring; 4. First base assembly; 401. Load-bearing plate; 402. Connection plate; 403. Main support plate; 404. Reinforcement plate; 405. Auxiliary support plate; 5. Slewing reducer; 6. Docking ring; 7. Second base assembly; 8. Support assembly; 801. Support column; 802. Support bar between columns; 803. Reinforcement beam; 804. Load-bearing beam; 9. Flexible load-bearing cable; 10. Flexible photovoltaic module body. DETAILED DESCRIPTION

[0029] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0030] like Figure 2-Figure 8As shown, a tracking flexible photovoltaic support system and its driving method include a connecting component 1, a rotary reducer 5 and a flexible load-bearing cable 9, the end of the connecting component 1 is installed with a bearing inner ring 3 through an annular bolt group, and the outer surface of the bearing inner ring 3 is rotatably connected to the bearing outer ring 2, and the end of the bearing outer ring 2 is fixedly connected to a first base component 4 through an annular bolt group, the first base component 4 includes a bearing plate 401, and a connecting plate 402 is fixedly installed on the top of the bearing plate 401, and the top of the bearing plate 401 is symmetrically fixedly connected to a main support plate 403, the side of the main support plate 403 is fixedly connected to the side of the connecting plate 402, and the bottom of the main support plate 403 is fixedly connected to the top of the bearing plate 401, and the connecting plate 402 forms a fixed structure with the bearing plate 401 through the main support plate 403, by setting the connecting plate 402 and the bearing plate 401 into a fixed structure, the supporting performance of the connecting plate 402 is better, and the top of the bearing plate 401 is fixedly installed with a reinforcing plate 404, and the reinforcing plate 404 The side of the supporting plate 401 is fixedly connected to the side of the connecting plate 402, and the auxiliary supporting plate 405 is symmetrically installed on the top of the supporting plate 401. The auxiliary supporting plate 405 is symmetrically fixedly installed on the other side of the connecting plate 402, and the auxiliary supporting plate 405 is alternately arranged with the reinforcing plate 404 and the main supporting plate 403. By arranging the auxiliary supporting plate 405, the reinforcing plate 404 and the main supporting plate 403 in an alternating shape, the supporting reinforcement of the connecting plate 402 by the auxiliary supporting plate 405, the reinforcing plate 404 and the main supporting plate 403 is better, and the rotation is reduced. The speed reducer 5 is arranged on the other side of the connecting component 1, and a docking ring 6 is provided on the outside of the slewing reducer 5, and the other side of the docking ring 6 is fixedly connected to the other side of the connecting component 1 through a ring bolt group, and a second base component 7 is installed on the side of the slewing reducer 5 through a ring bolt group. At the same time, a support component 8 is fixedly installed on the bottom of the first base component 4, and the flexible load-bearing cables 9 are symmetrically fixedly installed on the side of the connecting component 1, and the flexible photovoltaic component body 10 is equidistantly installed on the top of the flexible load-bearing cables 9.

[0031] like Figures 1-8As shown, the end of the connecting component 1 is installed with the bearing inner ring 3 through the annular bolt group, the connecting component 1 includes a truss beam 101, and the bottom of the truss beam 101 is embedded with a connecting strip 102 fixedly installed, and the two ends of the connecting strip 102 are symmetrically fixedly installed with docking plates 103, the number of the docking plates 103 is two, and the two docking plates 103 are respectively fixedly connected to the inner side of the bearing inner ring 3 and the docking ring 6 through the annular bolt group. The provided docking plates 103 make it easy for the staff to dock and install the connecting component 1 with the bearing inner ring 3 and the docking ring 6, and the truss beam 1 01 is fixedly connected with reinforcement strips 104 at equal distances. The reinforcement strips 104 are set up to make the load-bearing and deformation resistance of the truss beam 101 better. The outer surface of the bearing inner ring 3 is rotatably connected to the bearing outer ring 2, and the end of the bearing outer ring 2 is fixedly connected to the first base component 4 through an annular bolt group. The rotary reducer 5 is arranged on the other side of the connecting component 1, and a docking ring 6 is arranged on the outside of the rotary reducer 5, and the other side of the docking ring 6 is fixedly connected to the other side of the connecting component 1 through an annular bolt group, and the side of the rotary reducer 5 is fixedly connected to the other side of the connecting component 1 through an annular bolt group. The bolt group is installed with a second base component 7, and the bottom of the first base component 4 is fixedly installed with a support component 8, which includes a support column 801, and the inner surface of the support column 801 is fixedly installed with an inter-column support bar 802, and the side of the support column 801 is fixedly connected with a reinforcing beam 803. There are two support columns 801, and the two support columns 801 are symmetrically arranged with the mid-vertical line of the reinforcing beam 803 as the symmetry axis. The two support columns 801 form a fixed structure through the reinforcing beam 803. By setting the two support columns 801 into a fixed structure, the support group The rigidity of component 8 is better, so that the supporting effect of support component 8 is better, and the top of the bracket column 801 is fixedly installed with a load-bearing beam 804, and the top of the load-bearing beam 804 is fixedly connected to the bottom of the first base component 4 and the second base component 7, and the flexible load-bearing cable 9 is symmetrically fixedly installed on the side of the connecting component 1, and the end of the flexible load-bearing cable 9 is fixedly connected to the side of the truss beam 101, and the top of the flexible load-bearing cable 9 is fixedly connected to the bottom of the flexible photovoltaic component body 10, and the flexible photovoltaic component body 10 is equidistantly installed on the top of the flexible load-bearing cable 9.

[0032] A tracking type flexible photovoltaic support system driving method is applied to the above-mentioned tracking type flexible photovoltaic support system, and the tracking type flexible photovoltaic support system driving method includes the following steps:

[0033] S1. Installation of support system: The staff will fix and install the support assemblies 8 on both sides according to the measured distance according to the number of flexible photovoltaic module bodies 10 to be installed. At this time, the bottom of the bracket column 801 is firmly fixed on the ground, and then the bearing outer ring 2 and the rotary reducer 5 are fixedly installed on the inner sides of the first base assembly 4 and the second base assembly 7 respectively through the annular bolt group. Then the truss beam 101 is placed on the top of the load-bearing beam 804, and then the docking plates 103 at both ends of the connecting bar 102 are fixedly connected to the inner sides of the bearing inner ring 3 and the docking ring 6 respectively through the annular bolt group. At this time, the main support plate 403, the reinforcement plate 404 and the auxiliary support plate 405 cooperate with each other, so that the first base assembly 4 and the second base assembly 7 will not fall over during support. After the four groups of connection assemblies 1 are fixedly installed, the flexible photovoltaic module body 10 is installed at equal distances on the top of the flexible load-bearing cable 9 to complete the overall installation of the flexible photovoltaic support system.

[0034] S2. Tracking operation of the support system: After the support system is installed, the control system is used to drive the slewing reducer 5 to operate. When the slewing reducer 5 starts to operate, it drives the docking ring 6 to start rotating. At this time, the rotation of the bearing inner ring 3 in the bearing outer ring 2 causes the docking plate 103 to drive the connecting bar 102 to rotate. As the connecting components 1 on both sides begin to rotate synchronously, the flexible load-bearing rope 9 connected to the side of the truss beam 101 drives the installed flexible photovoltaic component body 10 to rotate synchronously, thereby achieving the purpose of automatically tracking the sun and rotating the angle. At the same time, the operation of the slewing reducer 5 also ensures that the rotation speed of the connecting component 1 will not be too fast, causing the angle of the flexible photovoltaic component body 10 to rotate too much, thereby effectively improving the light receiving time of the flexible photovoltaic support system.

[0035] The embodiments of the present invention are presented for purposes of illustration and description and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are chosen and described in order to better illustrate the principles of the invention and its practical application and to enable those skilled in the art to understand the invention and design various embodiments with various modifications as suited for specific applications.

Claims

1. A tracking flexible photovoltaic support system, comprising a connection assembly (1), a slewing reducer (5) and a flexible load-bearing cable (9), characterized in that: The end of the connecting component (1) is installed with a bearing inner ring (3) through an annular bolt group, and the outer surface of the bearing inner ring (3) is rotatably connected to the bearing outer ring (2), and the end of the bearing outer ring (2) is fixedly connected to the first base component (4) through an annular bolt group, the rotary reducer (5) is arranged on the other side of the connecting component (1), and a docking ring (6) is arranged on the outer side of the rotary reducer (5), and the other side of the docking ring (6) is fixedly connected to the other side of the connecting component (1) through an annular bolt group, and the side of the rotary reducer (5) is installed with a second base component (7) through an annular bolt group, and the bottom of the first base component (4) is fixedly installed with a support component (8), the flexible load-bearing cable (9) is symmetrically fixedly installed on the side of the connecting component (1), and the top of the flexible load-bearing cable (9) is equidistantly fitted with a flexible photovoltaic component body (10).

2. A tracking flexible photovoltaic support system according to claim 1, characterized in that: The connection assembly (1) comprises a truss beam (101), wherein a connecting strip (102) is embedded and fixedly installed at the bottom of the truss beam (101), and docking plates (103) are symmetrically fixedly installed at both ends of the connecting strip (102), and reinforcing strips (104) are embedded and fixedly connected at equal distances inside the truss beam (101).

3. A tracking flexible photovoltaic support system according to claim 2, characterized in that: There are two docking plates (103), and the two docking plates (103) are fixedly connected to the inner side of the bearing inner ring (3) and the inner side of the docking ring (6) respectively through an annular bolt group.

4. A tracking flexible photovoltaic support system according to claim 1, characterized in that: The first base assembly (4) includes a supporting plate (401), a connecting plate (402) is fixedly installed on the top of the supporting plate (401), a main supporting plate (403) is symmetrically fixedly connected to the top of the supporting plate (401), a reinforcing plate (404) is fixedly installed on the top of the supporting plate (401), and the sides of the reinforcing plate (404) are fixedly connected to the sides of the connecting plate (402), and an auxiliary supporting plate (405) is symmetrically installed on the top of the supporting plate (401).

5. The tracking flexible photovoltaic support system according to claim 4, characterized in that: The sides of the main support plate (403) are fixedly connected to the sides of the connecting plate (402), and the bottom of the main support plate (403) is fixedly connected to the top of the bearing plate (401), and the connecting plate (402) forms a fixed structure through the main support plate (403) and the bearing plate (401).

6. The tracking flexible photovoltaic support system according to claim 4, characterized in that: The auxiliary support plates (405) are symmetrically fixedly installed on the other side of the connecting plate (402), and the auxiliary support plates (405) are alternately arranged with the reinforcing plates (404) and the main support plates (403).

7. The tracking flexible photovoltaic support system according to claim 1, characterized in that: The support assembly (8) includes a support column (801), and an inter-column support bar (802) is fixedly installed on the inner surface of the support column (801), and a reinforcing beam (803) is fixedly connected to the side of the support column (801), and a bearing beam (804) is fixedly installed on the top of the support column (801), and the top of the bearing beam (804) is fixedly connected to the bottom of the first base assembly (4) and the second base assembly (7).

8. The tracking flexible photovoltaic support system according to claim 7, characterized in that: The number of the support columns (801) is two, and the two support columns (801) are symmetrically arranged with the mid-perpendicular line of the reinforcement beam (803) as the symmetry axis. The two support columns (801) form a fixed structure through the reinforcement beam (803).

9. The tracking flexible photovoltaic support system according to claim 2, characterized in that: The ends of the flexible load-bearing cables (9) are fixedly connected to the sides of the truss beams (101), and the tops of the flexible load-bearing cables (9) are fixedly connected to the bottoms of the flexible photovoltaic module bodies (10).

10. A driving method for a tracking type flexible photovoltaic support system, applied to the tracking type flexible photovoltaic support system according to any one of claims 1 to 9, characterized in that: The driving method of the tracking flexible photovoltaic support system includes the following steps: S1. Support system installation: The staff will fix and install the support components (8) on both sides according to the measured distance according to the number of flexible photovoltaic component bodies (10) to be installed. At this time, the bottom of the support column (801) is firmly fixed on the ground. Then, the outer ring of the bearing (2) and the rotary reducer (5) are fixed on the inner side of the first base component (4) and the second base component (7) respectively through the ring bolt group. Then, the truss beam (101) is placed on the top of the load-bearing beam (804). Then, the connecting bar (102) is fixed through the ring bolt group. The docking plates (103) at both ends are fixedly connected to the inner side of the bearing inner ring (3) and the docking ring (6), respectively. At this time, through the mutual cooperation of the main support plate (403), the reinforcement plate (404) and the auxiliary support plate (405), the first base assembly (4) and the second base assembly (7) will not fall over when supporting. After the four groups of connection assemblies (1) are fixedly installed, the flexible photovoltaic assembly body (10) is installed at an equal distance on the top of the flexible load-bearing cable (9), thereby completing the overall installation of the flexible photovoltaic support system. S2. Tracking operation of the support system: After the support system is installed, the control system drives the slewing reducer (5) to operate. When the slewing reducer (5) starts to operate, it drives the docking ring (6) to start rotating. At this time, the inner ring of the bearing (3) rotates inside the outer ring of the bearing (2), so that the docking plate (103) drives the connecting bar (102) to rotate. As the connecting components (1) on both sides start to rotate synchronously, the flexible load-bearing rope (9) connected to the side of the truss beam (101) drives the installed flexible photovoltaic component body (10) to rotate synchronously, thereby achieving the purpose of automatically tracking the sun's operation and performing angular rotation.

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