Multi-row co-driven flat single-axis tracking flexible photovoltaic system

Abstract

The invention discloses a multi-row co-driving flat single-axis tracking flexible photovoltaic system, which comprises a driving structure, and is characterized in that the driving structure comprises a power wheel, a power wheel support column, a transverse driving cable and a longitudinal driving cable; the power wheel is connected with the transverse driving cable in the transverse direction; when the power wheel rotates, the transverse driving ropes located on the two sides of the power wheel move in the transverse direction in a staggered mode. In the longitudinal direction, at least two sets of photovoltaic supports are included, longitudinal driving ropes are connected with power wheels installed on power wheel supporting columns of the sets of photovoltaic supports, and when the power wheels rotate, the longitudinal driving ropes located on the two sides of the power wheels move in the longitudinal direction in a staggered mode. And the power wheels mounted on the power wheel supporting columns in one group of photovoltaic brackets are driven by a driving device to rotate. According to the scheme, the capacity requirement under the large row spacing can be met, the number of driving devices used by the system is small, self power consumption is low, transmission errors of all parts are reduced, torque caused by transmission errors of adjacent parts to the flexible cable is reduced, and the stability of the system is improved.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic systems, and in particular to a multi-row co-driven flat single-axis tracking flexible photovoltaic system. Background Art

[0002] The upper steel structure of the traditional multi-row linkage rigid tracking bracket is all built with rigid materials. The components are H-shaped steel. The single span is driven by a push rod or a rotary motor. The components are installed on the middle beam through a fish frame. The middle beam material is square tubes, etc., or the single body is thick, or the number of tubes is huge. At the same time, the distance between pile foundations is less than 5 meters. The number of steel and pile foundations used for 1MW units is much higher than that of fixed brackets with the same capacity. The traditional multi-row linkage rigid tracking bracket must ensure that the components run on the same plane, or be installed on a flat ground, or by adjusting the pile top elevation to be consistent. The transmission uses a turbine connecting rod with high assembly precision requirements. The terrain settlement needs to be adjusted in time during the 25-year operation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a multi-row co-driven flat single-axis tracking flexible photovoltaic system.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a multi-row co-driven flat single-axis tracking flexible photovoltaic system, including a driving structure, wherein the driving structure includes a power wheel, a power wheel support, a transverse driving cable, and a longitudinal driving cable; A power wheel base is installed on the top of the power wheel pillar, the power wheel is installed on the power wheel base, and the power wheel is connected to a transverse driving cable in the transverse direction; when the power wheel rotates, the transverse driving cables located on both sides of the power wheel move in a wrong direction in the transverse direction; In the longitudinal direction, it includes at least two groups of photovoltaic brackets, and the longitudinal driving cables are connected to the power wheels installed on the power wheel pillars of each group of photovoltaic brackets. When the power wheels rotate, the longitudinal driving cables located on both sides of the power wheels move in the longitudinal direction in a wrong direction; A power wheel installed on a power wheel support in one group of photovoltaic brackets is driven to rotate by a driving device.

[0005] Preferably, the flexible photovoltaic system comprises a plurality of groups of photovoltaic brackets arranged longitudinally. Each set of photovoltaic brackets includes a single row of photovoltaic modules or more than two single rows of photovoltaic modules.

[0006] Preferably, the transverse driving cable is connected to the power wheel in the following manner: the front and rear transverse driving cables are respectively fixed to the front and rear transverse driving cable buckles installed on the power wheel; The connection mode of the longitudinal driving cable and the power wheel is as follows: the left and right longitudinal driving cables are respectively fixed to the left and right longitudinal driving cable buckles installed on the power wheel.

[0007] Preferably, the flexible photovoltaic system includes end structures located at left and right ends in the lateral direction; The end structure comprises an end column, a rotating shaft beam and a rotating shaft arc disk. The rotating shaft beam is rotatably connected to the end column; the rotating shaft arc disk is fixed to the rotating shaft beam.

[0008] Preferably, the front and rear side surfaces of the end column are respectively fixedly mounted with front and rear traction wheel supports, and the front and rear traction wheels are respectively mounted on the front and rear traction wheel supports. A driving wheel support is installed on the side of the end column, the driving wheel is installed on the driving wheel support, and a transverse driving cable is clamped on the driving wheel; One end of the front and rear traction ropes are respectively connected to the lateral driving cables on both sides of the driving wheel, the other end of the front traction rope is connected to the rotating shaft arc disk, and the front traction rope fits the front traction wheel; the other end of the rear traction rope is connected to the rotating shaft arc disk, and the rear traction rope fits the rear traction wheel.

[0009] Preferably, the end structure comprises a reinforcing truss, and both ends of the reinforcing truss are fixed to the rotating shaft beam; Each group of photovoltaic brackets includes two single-row photovoltaic modules, and the flexible photovoltaic bracket includes four load-bearing cables divided into two groups, and each group of load-bearing cables is used to install a single-row photovoltaic module; The two load-bearing cables located inside pass through the reinforced truss and the pivot beam and are fixedly connected to the pivot beam through anchors; the load-bearing cables located at the side pass through the pivot beam and are fixedly connected to the pivot beam through anchors.

[0010] Preferably, the flexible photovoltaic system further comprises a middle structure, and the middle structure comprises a middle column and a middle column rotation mechanism; The center column rotation mechanism comprises: The middle column pivot beam is rotatably connected to the middle column; The center column pivot arc disk is fixed to the center column pivot beam and is located vertically below the center column pivot beam; The front and rear sides of the middle column are respectively fixedly mounted with front and rear pulley supports, and the front and rear pulleys are respectively mounted on the front and rear pulley supports. One end of the front and rear center column traction ropes are respectively connected to the lateral driving cables on both sides, the other end of the front center column traction rope is connected to the center column rotating shaft arc disk, and the front center column traction rope fits the front pulley; the other end of the rear center column traction rope is connected to the center column rotating shaft arc disk, and the rear traction rope fits the rear pulley; The load-bearing cable passes through the buckle hole of the U-shaped lock buckle installed on the central column rotating shaft beam.

[0011] Preferably, the middle column pivot beam and the middle column are rotatably connected in the following manner: the middle column is divided into a left steel column and a right steel column, and a left fixing plate and a right fixing plate are respectively arranged on the left side of the left steel column and the right side of the right steel column. The outer surface of the outer sleeve of the center column is fixed to the center column rotating shaft beam, the inner tube of the outer sleeve of the center column is inserted into the center column liner, the inner tube of the center column liner is inserted into the center axis, and the two ends of the center axis pass through the left steel column and the right steel column respectively and then are clamped into the pin holes of the left fixed plate and the right fixed plate.

[0012] Preferably, the flexible photovoltaic system further comprises a stable wind-resistant structure, wherein the stable wind-resistant structure comprises A stable base is arranged on the longitudinal front side and the longitudinal rear side of each row of photovoltaic brackets; Stabilizing cables, with both ends connected to the stabilizing bases at the front and rear of each column, The stabilizing mechanism comprises a vertically arranged support column, the upper end of the support column is rotatably connected to the middle part of the first longitudinal rod, and two groups of load-bearing cables pass through the load-bearing cable holes arranged on the first longitudinal rod; each group of load-bearing cables is used to install a single row of photovoltaic modules, and the two groups of load-bearing cables are respectively located on both sides of the longitudinal direction of the support column; The stabilizing rope passes through a stabilizing rope hole arranged at the lower end of the supporting column.

[0013] Preferably, the support column includes two vertically arranged angle steels, the first longitudinal rod is fixed to the outer sleeve, the inner cavity of the outer sleeve is provided with an inner sleeve, the pin shaft passes through one side of one angle steel and passes through the inner sleeve to one side of the other angle steel and is locked by a locking piece.

[0014] Preferably, a plurality of upper U-shaped locks are provided on the first longitudinal rod of the flexible photovoltaic system, and the U-shaped openings of the upper U-shaped locks form the load-bearing cable holes; the support column comprises two vertically arranged angle steels, the lower ends of the angle steels are connected by lower U-shaped locks, and the U-shaped openings of the lower U-shaped locks form the stabilizing cable holes.

[0015] The beneficial effects of the present invention are as follows: the solution of the present invention can meet the capacity requirements under large row spacing, and the rotation of multiple rows of photovoltaic modules only requires one driving device, which can achieve synchronization of multiple row drives and multiple row linkage, with a small number of driving devices and easy maintenance. The system uses fewer driving devices, the total power of the overall driving unit is small, and the self-consumption of electricity is low. The overall linkage of multiple groups of photovoltaic brackets in the longitudinal direction can be achieved through the power wheel and the longitudinal drive cable, reducing the transmission error of each part, reducing the torque brought to the flexible cable by the transmission error of adjacent parts, and improving the stability of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention; Figure 2 It is a schematic diagram of the driving structure of the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention; Figure 3It is a partial structural schematic diagram of the driving structure of the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention; Figure 4 This is a partial structural diagram of the end structure of the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention. Figure 1 ; Figure 5 This is a partial structural diagram of the end structure of the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention. Figure 2 ; Figure 6 This is a schematic diagram of the local structure of the middle structure of the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention. Figure 1 ; Figure 7 This is a schematic diagram of the local structure of the middle structure in the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the partial structure of the wind-resistant and stable structure in the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention. Figure 1 ; Fig. 9 This is a schematic diagram of the partial structure of the wind-resistant and stable structure in the multi-row co-driven flat single-axis tracking flexible photovoltaic system of the present invention. Figure 2 ; 101, end column; 102, shaft beam; 103, shaft arc plate; 1040, reinforcement truss; 1041, first reinforcement tube; 105, load-bearing rope; 1061, front traction wheel support; 1062, rear traction wheel support; 1063, front traction wheel; 1064, rear traction wheel; 1065, front traction rope; 1066, rear traction rope; 1070, transverse driving cable; 1071, driving wheel support; 1072, driving wheel; 201, middle column; 202, middle column pivot beam; 203, middle column pivot arc plate; 2041, front middle column traction rope; 2042, rear middle column traction rope; 2043, front pulley support; 2044, rear pulley support; 2045, front pulley; 2046, rear pulley; 2061, left steel column; 2062, right steel column; 2066, middle column column support; 2067, middle column prefabricated pipe pile; 301, stable base; 302, stable rope; 303, support column; 304, first longitudinal rod; 307, upper U-shaped lock; 308, lower U-shaped lock; 401. Power wheel; 402. Power wheel support; 403. Power wheel base; 404. Longitudinal drive cable. DETAILED DESCRIPTION

[0017] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0018] like Figure 1 As shown, a multi-row co-driven flat single-axis tracking flexible photovoltaic system includes an end structure, a middle structure, a wind-resistant and stable structure, and a driving structure. The end structures are located at the left and right ends in the horizontal direction. The flexible photovoltaic system is also provided with multiple middle structures and wind-resistant and stable structures. The flexible photovoltaic system includes at least two groups of photovoltaic brackets in the longitudinal direction, and each group of photovoltaic brackets includes two single-row photovoltaic modules. The double-row structure can increase the layout capacity under the condition of larger row spacing. This structure can be applied to complex terrains such as mountains, and the structure has strong adaptability to the environment.

[0019] The driving structure includes a power wheel 401, a power wheel support 402, a transverse driving cable 1070, and a longitudinal driving cable 404; a power wheel base 403 is installed on the top of the power wheel support 402, the power wheel 401 is installed on the power wheel base 403, and the power wheel 401 is connected to the transverse driving cable 1070 in the transverse direction; when the power wheel 401 rotates, the transverse driving cables 1070 located on both sides of the power wheel 401 move in the transverse direction; In the longitudinal direction, at least two groups of photovoltaic brackets are included, and the longitudinal driving cables 404 are connected to the power wheels 401 installed on the power wheel pillars 402 of each group of photovoltaic brackets. When the power wheels 401 rotate, the longitudinal driving cables 404 located on both sides of the power wheels 401 move in the longitudinal direction in a wrong direction; A power wheel 401 installed on a power wheel support 402 in one group of photovoltaic brackets is driven to rotate by a driving device; The transverse driving cable 1070 and the longitudinal driving cable 404 are both flexible cables.

[0020] Specifically, in an optional embodiment, the connection mode of the transverse driving cable 1070 and the power wheel 401 is as follows: the front and rear transverse driving cables 1070 are respectively fixed to the front and rear transverse driving cable buckles installed on the power wheel 401; The connection mode of the longitudinal driving cable 404 and the power wheel 401 is as follows: the left and right longitudinal driving cables 404 are respectively fixed to the left and right longitudinal driving cable buckles installed on the power wheel 401.

[0021] In the flexible photovoltaic support of the present invention, a lateral drive cable 1070 and a longitudinal drive cable 404 are used for transmission. Adjacent component units do not need to maintain a uniform elevation. The components are prefabricated in the factory, the on-site assembly volume is small, the assembly accuracy requirement is low, and it can adapt to terrain settlement. The solution of the present invention can meet the capacity requirements under large row spacing. The rotation of multiple rows of photovoltaic components only requires one drive device, and multiple rows can be driven synchronously and linked. The number of drive devices is small and easy to maintain. The system uses fewer drive devices, the total power of the overall drive unit is small, and the self-consumption of electricity is low. One row of power wheels 401 is driven by a driving device to rotate, so that the transverse driving cable 1070 connected to the power wheel 401 reciprocates in the transverse direction, and the longitudinal driving cable 404 connected to the power wheel 401 reciprocates in the longitudinal direction. The power wheels 401 in other rows rotate under the drive of the longitudinal driving cable 404, and then drive the transverse driving cable 1070 connected thereto to achieve movement. Therefore, the power wheels 401 in other rows do not need to be provided with corresponding driving devices, and the entire system only needs one driving device to achieve linkage of multiple groups. The overall linkage of multiple groups of photovoltaic brackets in the longitudinal direction can be achieved through the power wheels 401 and the longitudinal driving cables 404, reducing the transmission errors of various parts, reducing the torque brought to the flexible cable by the transmission errors of adjacent parts, and improving the stability of the system.

[0022] Specifically, in an optional embodiment, the end structure includes an end column 101 and also includes A rotating shaft beam 102 is rotatably connected to the end column 101; The rotating shaft arc disc 103 is fixed to the rotating shaft beam 102 and is located vertically below the rotating shaft beam 102. The end traction mechanism pulls the rotating shaft arc disc 103 to rotate so that the rotating shaft arc disc 103 and the rotating shaft beam 102 rotate in a vertical plane. The reinforcing truss 1040 has two ends fixed to the rotating shaft beam 102 , and a plurality of first reinforcing tubes 1041 are arranged between the reinforcing truss 1040 and the rotating shaft beam 102 .

[0023] Four load-bearing cable installation openings are reserved on the pivot beam 102; the two load-bearing cables 105 located inside pass through the reinforced truss 1040 and the pivot beam 102 and are fixedly connected to the pivot beam 102 via anchors; the load-bearing cables 105 located at the side pass through the pivot beam 102 and are fixedly connected to the pivot beam 102 via anchors.

[0024] Specifically, in an optional embodiment, the end traction mechanism includes front and rear traction ropes 1065 and 1066, the front and rear sides of the end column 101 are respectively fixedly installed with front and rear traction wheel supports 1061 and 1062, the front and rear traction wheels 1063 and 1064 are respectively installed on the front and rear traction wheel supports 1061 and 1062, the side of the end column 101 is installed with a driving wheel support 1071, the driving wheel 1072 is installed on the driving wheel support 1071, and the driving wheel 1072 is clamped into a lateral driving wheel. When the driving wheel 1072 rotates, the lateral driving ropes 1070 located at the front and rear sides of the driving wheel 1072 move in the lateral direction; one end of the front and rear traction ropes 1065 and 1066 are respectively connected to the lateral driving ropes 1070 on both sides of the driving wheel 1072, the other end of the front traction rope 1065 is connected to the rotating shaft arc disk 103, and the front traction rope 1065 fits the front traction wheel 1063; the other end of the rear traction rope 1066 is connected to the rotating shaft arc disk 103, and the rear traction rope 1066 fits the rear traction wheel 1064. Specifically, in an optional embodiment, the other end of the front traction rope 1065 is tied to the traction rope buckle fixed on the rotating shaft arc disk 103; the other end of the rear traction rope 1066 is tied to the traction rope buckle fixed on the rotating shaft arc disk 103.

[0025] The rotating shaft beam 102, the rotating shaft arc plate 103, the reinforcing truss 1040, and the first reinforcing tube 1041 are welded together to form a rotating mechanism. Compared with the conventional design, the rotating shaft arc plate 103 is added to increase the bending resistance structure of the rotating mechanism, which can effectively reduce the bending deformation of the rotating shaft beam 102 and reduce the strength requirements of the material for making the rotating shaft beam 102. The additional reinforcing truss 1040 and the first reinforcing tube 1041 can effectively reduce the bending deformation caused by the horizontal force applied to the rotating shaft beam 102 by the load-bearing cable 105.

[0026] The front traction rope 1065 and the rear traction rope 1066 are driven by the lateral driving rope 1070. For example, the front traction rope 1065 pulls the rotating shaft arc disk 103 forward or the rear traction rope 1066 pulls the rotating shaft arc disk 103 backward, driving the rotating shaft arc disk 103 to rotate clockwise or counterclockwise in the vertical plane, thereby causing the rotating shaft beam 102 to rotate clockwise or counterclockwise in the vertical plane around the end column 101, and the load-bearing rope 105 changes position synchronously with the rotating shaft beam 102, thereby causing the inclination angle of the photovoltaic module installed on the load-bearing rope 105 to change, thereby realizing the tracking of the photovoltaic module.

[0027] Specifically, in an optional embodiment, the middle structure includes a middle column and a middle column rotation mechanism; The center column rotation mechanism comprises: The middle column pivot beam 202 is rotatably connected to the middle column 201; The center column rotating shaft arc plate 203 is fixed to the center column rotating shaft beam 202 and is located vertically below the center column rotating shaft beam 202; The front and rear sides of the middle column 201 are respectively fixedly mounted with front and rear pulley supports 2043 and 2044, and the front and rear pulleys 2045 and 2046 are respectively mounted on the front and rear pulley supports 2043 and 2044. One end of the front and rear center column traction ropes 2041 and 2042 are respectively connected to the lateral driving ropes 1070 on both sides, the other end of the front center column traction rope 2041 is connected to the center column rotating shaft arc disk 203, and the front center column traction rope 2041 fits the front pulley 2045; the other end of the rear center column traction rope 2042 is connected to the center column rotating shaft arc disk 203, and the rear center column traction rope 2042 fits the rear pulley 2046, and the load-bearing rope 105 passes through the buckle hole of the U-shaped lock buckle installed on the center column rotating shaft beam 202.

[0028] Specifically, in an optional embodiment, the middle column 201 is divided into a left steel column 2061 and a right steel column 2062. A left fixed plate and a right fixed plate are respectively arranged on the left side of the left steel column 2061 and the right side of the right steel column 2062. The outer surface of the middle column outer sleeve is fixed to the middle column rotating shaft beam 202. The inner tube of the middle column outer sleeve is inserted into the middle column liner, and the inner tube of the middle column liner is inserted into the middle axis. The two ends of the middle axis respectively pass through the left steel column 2061 and the right steel column 2062 and are inserted into the pin holes of the left fixed plate and the pin holes of the right fixed plate.

[0029] The center column rotating mechanism is composed of a center column rotating shaft beam 202, a center column rotating shaft arc disk 203, and front and rear center column traction ropes 2041 and 2042. The center column rotating shaft beam 202 can be flexibly selected according to the local wind and snow pressure. The center column rotating shaft beam 202 directly supports two single-row photovoltaic modules within the allowable inclination angle range, so it mainly bears the load attached to the photovoltaic modules. The center column rotating shaft arc disk 203 and the center column rotating shaft beam 202 are welded to form a whole. The front and rear center column traction ropes 2041 and 2042 are respectively tightened and fitted with the front and rear pulleys 2045 and 2046, and the ends of the front and rear center column traction ropes 2041 and 2042 are connected to the transverse drive cable 1070 by buckles. The other ends of the front and rear center column traction ropes 2041, 2042 are buckled on the center column traction rope buckles reserved on the center column pivot arc plate 203, forming a controllable "transmission" structure. By controlling the reciprocating displacement of the lateral drive cable 1070, the front and rear center column traction ropes 2041, 2042 are controlled to form a displacement difference so that the center column pivot beam 202 forms an expected inclination angle to meet the inclination control of the entire row of components.

[0030] Specifically, in an optional embodiment, the stable wind-resistant structure includes: A stable base 301 is arranged on the longitudinal front side and the longitudinal rear side of each row of photovoltaic brackets; Stabilizing cables 302, both ends of which are connected to the stabilizing bases 301 at the front and rear sides of each column, The stabilizing mechanism includes a vertically arranged support column 303, the upper end of the support column 303 is rotatably connected to the middle of the first longitudinal rod 304, and two groups of load-bearing cables 105 pass through the load-bearing cable holes arranged on the first longitudinal rod 304; each group of load-bearing cables 105 is used to install a single row of photovoltaic modules, and the two groups of load-bearing cables 105 are respectively located on both sides of the longitudinal direction of the support column 303; The stabilizing rope 302 passes through a stabilizing rope hole provided at the lower end of the supporting column 303 .

[0031] Specifically, in an optional embodiment, the support column 303 includes two vertically arranged angle steels, the first longitudinal rod 304 is fixed to the stabilizing outer sleeve, the inner cavity of the stabilizing outer sleeve is provided with a stabilizing inner sleeve, the pin passes through one side of one angle steel and passes through the stabilizing inner sleeve to one side of the other angle steel and is locked by a locking member. Through the above structure, the first longitudinal rod 304 can stably rotate relative to the support column 303, and the installation and disassembly are simple and easy to maintain.

[0032] Specifically, in an optional embodiment, the lower end of the angle steel is connected by a lower U-shaped lock 308, and the U-shaped opening of the lower U-shaped lock 308 forms the stabilizing cable hole. Specifically, in an optional embodiment, a plurality of upper U-shaped locks 307 are provided on the first longitudinal rod 304, and the U-shaped openings of the upper U-shaped locks 307 form the load-bearing cable holes.

[0033] The stable wind-resistant structure is composed of a stabilizing mechanism, a stabilizing cable 302, and a stabilizing base 301. The first longitudinal rod 304 can rotate relative to the support column 303, so that the first longitudinal rod 304 forms an inclination angle relative to the support column 303, and the load-bearing cable 105 changes its position synchronously with the first longitudinal rod 304, thereby changing the inclination angle of the photovoltaic module installed on the load-bearing cable 105, thereby realizing the tracking of the photovoltaic module. The two ends of the stabilizing cable 302 are connected to the stabilizing base 301 at the head and tail of each column, so as to reduce wind vibration and resist negative wind, and improve the overall stability of the photovoltaic system. The stabilizing cable 302 passes through the U-shaped opening of the lower U-shaped lock 308 to limit the stabilizing cable 302. The load-bearing cable 105 passes through the U-shaped opening of the upper U-shaped lock 307 to limit the load-bearing cable 105.

[0034] The above description only describes the specific implementation mode of the present invention. Various examples do not limit the essential content of the present invention. After reading the description, ordinary technicians in the relevant technical field can modify or deform the specific implementation mode described above without departing from the essence and scope of the invention.

Claims

1. A multi-row co-driven flat single-axis tracking flexible photovoltaic system, including a driving structure, characterized in that: The driving structure comprises a power wheel (401), a power wheel support (402), a transverse driving cable (1070), and a longitudinal driving cable (404); A power wheel base (403) is installed on the top of the power wheel pillar (402), the power wheel (401) is installed on the power wheel base (403), and the power wheel (401) is connected to a transverse driving cable (1070) in a transverse direction; when the power wheel (401) rotates, the transverse driving cables (1070) located on both sides of the power wheel (401) move in a wrong direction in the transverse direction; In the longitudinal direction, at least two groups of photovoltaic brackets are included, and longitudinal drive cables (404) are connected to power wheels (401) installed on power wheel pillars (402) of each group of photovoltaic brackets, and when the power wheels (401) rotate, the longitudinal drive cables (404) located on both sides of the power wheels (401) move in the longitudinal direction in a wrong direction; A power wheel (401) mounted on a power wheel support (402) in one group of photovoltaic brackets is driven to rotate by a driving device; The transverse driving cable (1070) and the longitudinal driving cable (404) are both flexible cables.

2. According to claim 1, a multi-row co-driven flat single-axis tracking flexible photovoltaic system is characterized by: It includes multiple groups of photovoltaic brackets arranged vertically. Each set of photovoltaic brackets includes a single row of photovoltaic modules or more than two single rows of photovoltaic modules.

3. According to claim 1, a multi-row co-driven flat single-axis tracking flexible photovoltaic system is characterized by: The transverse driving cable (1070) is connected to the power wheel (401) in the following manner: the front and rear transverse driving cables (1070) are respectively fixed to the front and rear transverse driving cable buckles installed on the power wheel (401); The longitudinal drive cables (404) are connected to the power wheel (401) in the following manner: the left and right longitudinal drive cables (404) are respectively fixed to the left and right longitudinal drive cable buckles installed on the power wheel (401).

4. According to claim 1, a multi-row co-driven flat single-axis tracking flexible photovoltaic system is characterized by: It includes end structures located at the left and right ends in the horizontal direction; The end structure comprises an end column (101), a rotating shaft beam (102), and a rotating shaft arc disk (103); the rotating shaft beam (102) is rotatably connected to the end column (101); and the rotating shaft arc disk (103) is fixed to the rotating shaft beam (102).

5. A multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 4, characterized in that: The front and rear side surfaces of the end column (101) are respectively fixedly mounted with front and rear traction wheel supports (1061, 1062), and the front and rear traction wheels (1063, 1064) are respectively mounted on the front and rear traction wheel supports (1061, 1062). A driving wheel support (1071) is installed on the side of the end column (101), a driving wheel (1072) is installed on the driving wheel support (1071), and a transverse driving cable (1070) is clamped on the driving wheel (1072); One end of the front and rear traction ropes (1065, 1066) is respectively connected to the transverse driving ropes (1070) on both sides of the driving wheel (1072); the other end of the front traction rope (1065) is connected to the rotating shaft arc disk (103), and the front traction rope (1065) fits the front traction wheel (1063); the other end of the rear traction rope (1066) is connected to the rotating shaft arc disk (103), and the rear traction rope (1066) fits the rear traction wheel (1064).

6. A multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 4, characterized in that: The end structure comprises a reinforcing truss (1040), and both ends of the reinforcing truss (1040) are fixed to the rotating shaft beam (102); Each group of photovoltaic brackets includes two single-row photovoltaic modules, and the flexible photovoltaic bracket includes four load-bearing cables (105) divided into two groups, and each group of load-bearing cables (105) is used to install a single-row photovoltaic module; The two load-bearing cables (105) located inside pass through the reinforcing truss (1040) and the pivot beam (102) and are fixedly connected to the pivot beam (102) via an anchor; the load-bearing cables (105) located at the side pass through the pivot beam (102) and are fixedly connected to the pivot beam (102) via an anchor.

7. The multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 1, characterized in that: It also includes a middle structure, which includes a middle column (201) and a middle column rotation mechanism; The center column rotation mechanism comprises: A middle column pivot beam (202) is rotatably connected to the middle column (201); The center column rotating shaft arc disk (203) is fixed to the center column rotating shaft beam (202) and is located vertically below the center column rotating shaft beam (202); The front and rear side surfaces of the middle column (201) are respectively fixedly mounted with front and rear pulley supports (2043, 2044), and the front and rear pulleys (2045, 2046) are respectively mounted on the front and rear pulley supports (2043, 2044). One end of the front and rear middle column traction ropes (2041, 2042) is respectively connected to the lateral driving cables (1070) on both sides, the other end of the front middle column traction rope (2041) is connected to the middle column rotating shaft arc disk (203), and the front middle column traction rope (2041) fits the front pulley (2045); the other end of the rear middle column traction rope (2042) is connected to the middle column rotating shaft arc disk (203), and the rear traction rope (1066) fits the rear pulley (2046); The load-bearing cable (105) passes through a buckle hole of a U-shaped buckle installed on the center column rotating shaft beam (202) (102).

8. The multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 7, characterized in that: The middle column rotating shaft beam (202) and the middle column (201) are rotatably connected in the following manner: the middle column (201) is divided into a left steel column (2061) and a right steel column (2062); a left fixing plate and a right fixing plate are respectively arranged on the left side of the left steel column (2061) and the right side of the right steel column (2062); The outer surface of the outer sleeve of the center column is fixed to the center column rotating shaft beam (202), the inner tube of the outer sleeve of the center column is inserted into the center column liner, the inner tube of the center column liner is inserted into the center axis, and the two ends of the center axis pass through the left steel column (2061) and the right steel column (2062) respectively and then are inserted into the pin holes of the left fixing plate and the pin holes of the right fixing plate.

9. The multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 1, characterized in that: Also includes a stable wind-resistant structure, the stable wind-resistant structure includes A stable base (301) is arranged on the longitudinal front side and the longitudinal rear side of each row of photovoltaic brackets; Stabilizing cables (302) are connected at both ends to the stabilizing bases (301) at the front and rear sides of each column. The stabilizing mechanism comprises a vertically arranged support column (303), the upper end of the support column (303) being rotatably connected to the middle part of the first longitudinal rod (304), and two groups of load-bearing cables (105) passing through load-bearing cable holes arranged on the first longitudinal rod (304); each group of load-bearing cables (105) is used to install a single row of photovoltaic modules, and the two groups of load-bearing cables (105) are respectively located on both sides of the longitudinal direction of the support column (303); The stabilizing rope (302) passes through a stabilizing rope hole provided at the lower end of the supporting column (303).

10. A multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 9, characterized in that: The support column (303) comprises two vertically arranged angle steels, the first longitudinal rod (304) is fixed to an outer sleeve, the inner cavity of the outer sleeve is provided with an inner sleeve, and a pin shaft passes through one side of an angle steel and through the inner sleeve to one side of another angle steel and is locked by a locking member.

11. The multi-row co-driven flat single-axis tracking flexible photovoltaic system according to claim 9, characterized in that: The first longitudinal rod (304) is provided with a plurality of upper (307) U-shaped locks (307), and the U-shaped openings of the upper U-shaped locks (307) form the load-bearing cable holes; The support column (303) comprises two vertically arranged angle steels, the lower ends of which are connected via a lower U-shaped lock (308), and the U-shaped opening of the lower U-shaped lock (308) forms the stabilizing cable hole.

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