Middle-span flexible photovoltaic support inclination angle synchronous adjusting system

Abstract

The invention discloses a middle-span flexible photovoltaic support inclination angle synchronous adjusting system, which comprises a flexible support, driving mechanisms, an upper computer and a remote driver, and is characterized in that the flexible support comprises a plurality of first stand columns and first rotating frames hinged to the first stand columns, and the plurality of driving mechanisms are in one-to-one correspondence with the plurality of first rotating frames and are connected with the plurality of first rotating frames; the plurality of remote drivers and the plurality of driving mechanisms are in one-to-one correspondence and are connected, the plurality of remote drivers are connected with the same upper computer, the upper computer is used for generating a target inclination angle value, and the remote drivers control the corresponding driving mechanisms to operate or stop according to the target inclination angle value after receiving the target inclination angle value. The first rotating frame is driven to rotate until the actual inclination angle reaches the target inclination angle value; according to the application, synchronous adjustment of the inclination angles of the photovoltaic panels on the same row of flexible supports is realized by adopting a multi-point electrical transmission mode, the situation that the flexible steel cables are twisted off due to asynchronous adjustment is avoided, and normal work of the photovoltaic supports is ensured.

Description

Technical Field

[0001] The present application relates to the field of photovoltaic power generation technology, and in particular to a mid-span flexible photovoltaic support tilt synchronous adjustment system. Background Art

[0002] With the continuous development of large-scale ground photovoltaic power generation projects, flat and open ground scenes are becoming less and less, and there are more and more application scenes such as hillsides, swamps, and water treatment plants. The small-span dense column-type purlin photovoltaic brackets suitable for the aforementioned application scenes are not suitable for the latter scenes, and large-span flexible brackets are gradually being promoted.

[0003] The long-span flexible bracket introduces steel cables as the main support, which increases the span between columns by 5-10 times from 6 meters of the purlin type to more than 30 meters, greatly improving the adaptability to photovoltaic installation scenarios. However, with the gradual advancement of the project, it was found that the long-span flexible bracket has the following problems: 1) The photovoltaic panels installed on the long-span steel cables will vibrate under the action of wind loads, causing fatigue failure of the connectors and hidden cracks in the cells of the photovoltaic panels; 2) Since it is necessary to avoid the bracket being blown over by excessive wind pressure, the inclination angle of the component should not be too large, and it is often smaller than the local optimal inclination angle, resulting in power generation loss; 3) The photovoltaic bracket is generally designed according to the wind load condition of once in 50 years, but under extreme weather conditions such as typhoons, the wind force is often likely to reach an extreme peak. The existing scheme lacks wind shelter measures and there is a risk of being blown over and damaged.

[0004] Therefore, medium-span flexible brackets with a span of 16-20 meters have appeared on the market, which partially reduce the problem of wind-induced vibration. However, the flexible brackets cannot transmit torsional movement through flexible steel cables, so there is a problem that the inclination angle is difficult to adjust synchronously. Summary of the invention

[0005] The present application provides a mid-span flexible photovoltaic support tilt synchronous adjustment system, aiming to solve the problem that the tilt of existing flexible supports is difficult to adjust synchronously.

[0006] The present application provides a mid-span flexible photovoltaic support tilt synchronous adjustment system, comprising: a flexible support, a driving mechanism, a host computer and a remote driver;

[0007] The flexible bracket includes a first bracket body, the first bracket body includes a plurality of first columns arranged at intervals along a first direction, and a first rotating frame is hingedly provided at the end of the first column; the first bracket body also includes two first component cables arranged in parallel, the two first component cables extend along the first direction, and the two first component cables are respectively connected to two sides of each first rotating frame, and a first installation plane is formed between the two first component cables;

[0008] The driving mechanism is provided in plurality, and the plurality of driving mechanisms correspond to the plurality of first rotating frames one by one, and the driving mechanism is connected to the first rotating frames, and the driving mechanism is used to drive the corresponding first rotating frames to rotate;

[0009] A plurality of the remote drivers are connected to the host computer, and the host computer is used to generate a target inclination angle value;

[0010] There are multiple remote drivers, and the multiple remote drivers correspond one-to-one to the multiple driving mechanisms; the remote driver is used to receive the target inclination value sent by the host computer, and control the corresponding driving mechanism to run or stop according to the target inclination value.

[0011] Optionally, the remote driver includes a communication module, a motor drive module and an angle sensor;

[0012] The angle sensor is arranged on the first rotating frame, the output end of the angle sensor is connected to the input end of the motor driving module, and the angle sensor is used to detect the current inclination value of the corresponding first rotating frame and send the current inclination value to the motor driving module;

[0013] The input end of the communication module is connected to the output end of the host computer, and the output end of the communication module is connected to the input end of the motor drive module; the communication module is used to receive the target inclination angle value sent by the host computer, and send the target inclination angle value to the motor drive module;

[0014] The motor driving module is connected to the driving mechanism, and is used to drive the corresponding driving mechanism to run or stop according to the target inclination value and the current inclination value until the inclination of the first rotating frame changes to the target inclination value.

[0015] Optionally, the host computer includes an inclination angle calculation module, which calculates the solar altitude angle according to the solar time, longitude and latitude and altitude, and generates the target inclination angle value according to the solar altitude angle.

[0016] Optionally, the plurality of remote drivers are connected to the host computer via a communication line or wireless communication.

[0017] Optionally, the driving mechanism is an electric push rod, one end of the electric push rod is hinged to the first column, and the other end of the electric push rod is hinged to the first rotating frame.

[0018] Optionally, the flexible bracket further comprises a second bracket body, the second bracket body comprises a plurality of second columns arranged at intervals along the first direction, and a second rotating frame is hingedly provided at the end of the second column; the second bracket body further comprises two second component cables arranged in parallel, the two second component cables extend along the first direction, and the two second component cables are respectively connected to two sides of each second rotating frame, and a second installation plane is formed between the two second component cables;

[0019] The second bracket body is provided in plurality, the first bracket body and the plurality of the second bracket bodies are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction;

[0020] Along the second direction, a transmission assembly is arranged between adjacent first rotating frames and second rotating frames, and between two adjacent second rotating frames; the transmission assembly is used to transmit the movement of the first rotating frame to the adjacent second rotating frame, or to transmit the movement of the second rotating frame to another adjacent second rotating frame.

[0021] Optionally, the transmission assembly includes a swing arm and a push-pull rod;

[0022] One end of the swing arm is fixed to the first rotating frame or the second rotating frame, and the other end of the swing arm is hinged to the push-pull rod; along the second direction, the push-pull rod is arranged between two adjacent swing arms, and both ends of the push-pull rod are respectively hinged to the two adjacent swing arms.

[0023] Optionally, the flexible bracket further includes a windproof component, the windproof component includes two windproof column units; the windproof column unit includes a first windproof column and a second windproof column arranged along the second direction, a first reinforcing rod is arranged between the first windproof column and the second windproof column, and two ends of the first reinforcing rod are respectively connected to the first windproof column and the second windproof column;

[0024] A windproof cable is connected between the two windproof column units, and the windproof cable extends along the second direction; support arms are hingedly provided on the first windproof column, the second windproof column and the windproof cable, and both sides of the support arms are respectively connected to the first component cable or the second component cable.

[0025] Optionally, two first reinforcing rods are provided between the first windproof column and the second windproof column, and the two first reinforcing rods are cross-arranged.

[0026] Optionally, a plurality of the windproof components are provided, and the plurality of windproof components are arranged at intervals along the first direction.

[0027] Beneficial effects:

[0028] The present application provides a mid-span flexible photovoltaic support inclination synchronous adjustment system, including a flexible support, a driving mechanism, a host computer and a remote driver, the flexible support including a plurality of first columns and a first rotating frame hingedly arranged on the first columns, the plurality of driving mechanisms corresponding to and connected to the plurality of first rotating frames one by one, the plurality of remote drivers corresponding to and connected to the plurality of driving mechanisms one by one, the plurality of remote drivers connected to the same host computer, the host computer can calculate and generate a target inclination value according to the detected solar time, and after receiving the target inclination value, the remote driver controls the corresponding driving mechanism to run or stop according to the target inclination value, thereby driving the first rotating frame to rotate until the actual inclination reaches the target inclination value; the present application realizes the synchronous adjustment of the inclination of photovoltaic panels on the same row of flexible supports by adopting a multi-point electrical transmission method, thereby avoiding the situation where the flexible steel cable is twisted off due to asynchronous adjustment, and ensuring the normal operation of the photovoltaic support. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 It is a structural schematic diagram of the first bracket body in the mid-span flexible photovoltaic bracket tilt synchronous adjustment system proposed in one embodiment of the present application;

[0031] Figure 2 This application Figure 1 A partial enlarged schematic diagram of point C in the middle;

[0032] Figure 3 This is an electrical connection diagram of a mid-span flexible photovoltaic support tilt synchronous adjustment system proposed in one embodiment of the present application;

[0033] Figure 4 This is an algorithm flow chart of a synchronous adjustment system for the inclination angle of a medium-span flexible photovoltaic support proposed in an embodiment of the present application;

[0034] Figure 5 It is a schematic diagram of the arrangement of the first bracket body and the second bracket body in the mid-span flexible photovoltaic bracket tilt synchronous adjustment system proposed in one embodiment of the present application;

[0035] Figure 6 It is a schematic diagram of the linkage relationship between the first bracket body and multiple second bracket bodies in the mid-span flexible photovoltaic bracket tilt synchronous adjustment system proposed in one embodiment of the present application;

[0036] Figure 7 This application Figure 6 A partial enlarged schematic diagram of point D in the middle;

[0037] Figure 8 It is a schematic diagram of the arrangement of windproof components in a flexible support array in a mid-span flexible photovoltaic support tilt synchronous adjustment system proposed in an embodiment of the present application;

[0038] Fig. 9 It is a structural schematic diagram of a windproof component in a mid-span flexible photovoltaic support tilt synchronous adjustment system proposed in an embodiment of the present application;

[0039] Fig.10 This application Fig. 9 A local enlarged schematic diagram of point E in FIG.

[0040] Description of reference numerals:

[0041] 1. First bracket body; 11. First column; 12. First rotating frame; 13. First component cable;

[0042] 2. Second bracket body; 21. Second column; 22. Second rotating frame; 23. Second component cable;

[0043] 3. Electric push rod;

[0044] 41. Swing arm; 42. Push-pull rod;

[0045] 5. Windproof assembly; 51. First windproof column; 52. Second windproof column; 53. First reinforcing rod; 54. Windproof cable; 55. Support arm;

[0046] A, driving group; B, driven group; B1, first driven group; B2, second driven group; B3, third driven group; B4, fourth driven group; B5, fifth driven group; B6, sixth driven group. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0048] In the related art, a medium-span flexible bracket refers to a photovoltaic bracket with a span of 16-20 meters between the columns in the east-west direction, and a steel cable with a certain flexibility between the columns as a photovoltaic panel support. The two ends of the steel cable are fixed on the two outermost beams, and the steel cable is tightened by applying a certain tension to the steel cable. The photovoltaic panel is installed on the tightened steel cable. This bracket allows a certain droop in the middle of the steel cable, and allows slow shaking under wind load conditions, so it is called a flexible bracket. After the photovoltaic panel is installed on the photovoltaic bracket, the angle between the normal on the upper surface of the photovoltaic panel and the ground plane is the inclination of the photovoltaic panel. At the optimal inclination position, the sunlight is vertically incident on the photovoltaic panel, and the power generation is the largest at this time. An inclination-adjustable bracket means that the inclination of the photovoltaic panel can be adjusted according to the change of the solar altitude angle, so that the photovoltaic panel is always kept at the optimal inclination position, thereby reducing cosine loss and ensuring power generation. However, the flexible bracket cannot transmit torsional motion through the flexible steel cable, so there is a problem that the inclination adjustment of the photovoltaic panels on the same row of flexible brackets is difficult to synchronize.

[0049] In view of this, an embodiment of the present application proposes a synchronous adjustment system for the inclination angle of a mid-span flexible photovoltaic support.

[0050] A mid-span flexible photovoltaic support tilt synchronous adjustment system, comprising: a flexible support, a driving mechanism, a host computer and a remote driver;

[0051] The flexible bracket includes a first bracket body 1, the first bracket body 1 includes a plurality of first columns 11 arranged at intervals along a first direction, and a first rotating frame 12 is hingedly provided at the end of the first column 11; the first bracket body 1 also includes two first component cables 13 arranged in parallel, the two first component cables 13 extend along the first direction, and the two first component cables 13 are respectively connected to the two sides of each first rotating frame 12, and a first installation plane is formed between the two first component cables 13;

[0052] The driving mechanism is provided in plurality, and the plurality of driving mechanisms correspond to the plurality of first rotating frames 12 one by one. The driving mechanism is connected to the first rotating frames 12, and the driving mechanism is used to drive the corresponding first rotating frames 12 to rotate;

[0053] A plurality of the remote drivers are connected to the host computer, and the host computer is used to generate a target inclination angle value;

[0054] There are multiple remote drivers, and the multiple remote drivers correspond one-to-one to the multiple driving mechanisms; the remote driver is used to receive the target inclination value sent by the host computer, and control the corresponding driving mechanism to run or stop according to the target inclination value.

[0055] For details, see Figure 1, with the east-west direction as the first direction and the north-south direction as the second direction. One first bracket body 1 is provided, and a plurality of first columns 11 are spaced apart along the first direction; a first rotating frame 12 is hingedly provided at the end of the first column 11, and the first rotating frame 12 serves as the installation base of the first component cable 13. The first component cable 13 is a steel cable with a certain flexibility, and two first component cables 13 are respectively connected to the two sides of each first rotating frame 12, and the two first component cables 13 are arranged in parallel and extend along the first direction, and a first installation plane for installing photovoltaic panels is formed between the two first component cables 13; the first rotating frame 12 is perpendicular to the direction of the first component cable 13, and when all the first rotating frames 12 rotate synchronously around their respective hinged positions, the first installation plane rotates, and the angle between the first installation plane and the horizontal plane changes, thereby changing the inclination angle of the photovoltaic panel installed on the first installation plane.

[0056] The plurality of driving mechanisms are distributed at intervals in the length direction of the first bracket body 1 , and the plurality of driving mechanisms correspond to the plurality of first rotating frames 12 one by one, and are used to drive the corresponding first rotating frames 12 to rotate.

[0057] Each driving mechanism is equipped with a remote driver, and these remote drivers are connected to a host computer. The host computer can calculate and generate a target inclination value based on the detected solar time, and send the target inclination value to all remote drivers.

[0058] Multiple remote drivers are connected to multiple driving mechanisms in a one-to-one correspondence. After receiving the target inclination value sent by the host computer, the remote driver controls the corresponding driving mechanism to operate according to the target inclination value, thereby driving the corresponding first rotating frame 12 to rotate until the actual inclination reaches the target inclination value. By configuring multiple driving points on the first bracket body 1, the synchronous adjustment of the inclination of the photovoltaic panel on the first bracket body 1 is achieved by electrical drive, avoiding the situation where the steel cable is twisted off due to asynchronous adjustment, and ensuring the normal operation of the photovoltaic panel.

[0059] Optionally, the remote driver includes a communication module, a motor drive module and an angle sensor;

[0060] The angle sensor is arranged on the first rotating frame 12, and the output end of the angle sensor is connected to the input end of the motor driving module. The angle sensor is used to detect the current inclination value of the corresponding first rotating frame 12 and send the current inclination value to the motor driving module;

[0061] The input end of the communication module is connected to the output end of the host computer, and the output end of the communication module is connected to the input end of the motor drive module; the communication module is used to receive the target inclination angle value sent by the host computer, and send the target inclination angle value to the motor drive module;

[0062] The motor driving module is connected to the driving mechanism, and is used to drive the corresponding driving mechanism to run or stop according to the target inclination value and the current inclination value until the inclination of the first rotating frame 12 changes to the target inclination value.

[0063] Specifically, the communication module may be a power line carrier communication module or a wireless communication module, such as a LoRa module, a ZigBee module, etc.; the motor drive module may be a solid-state relay.

[0064] Optionally, the output end of the angle sensor can also be connected to the input end of the host computer to feed back the detected inclination data to the host computer, so that the host computer can understand the actual state of the inclination of all first rotating frames 12 in real time, facilitating data recording or uploading.

[0065] Furthermore, the host computer includes an inclination angle calculation module, which calculates the solar altitude angle according to the solar time, longitude and latitude and altitude, and generates the target inclination angle value according to the solar altitude angle.

[0066] Specifically, the host computer can detect the solar time, and the inclination angle calculation module calculates the solar altitude angle according to the solar time, longitude and latitude, and altitude. The optimal inclination angle of the photovoltaic panel corresponding to the solar altitude angle is the target inclination angle.

[0067] Optionally, the driving mechanism includes an electric push rod 3 , one end of which is hinged to the first column 11 , and the other end of which is hinged to the end of the first rotating frame 12 .

[0068] For details, see Figure 2 The lower end of the electric push rod 3 is hinged to the middle part of the first column 11, and the upper end of the electric push rod 3 is hinged to one end of the first rotating frame 12. When the electric push rod 3 is working, the push rod is extended to push the first rotating frame 12 to rotate around its hinge point. The push rod is shortened to pull the first rotating frame 12 to rotate in the opposite direction around its hinge point, and then the two first component cables 13 connected to the two sides of the first rotating frame 12 move accordingly, and then the inclination angle of the photovoltaic panel installed on the first installation plane changes.

[0069] In other embodiments, a rotary reducer may also be used as a driving mechanism to drive the first rotating frame 12 to rotate.

[0070] See also Figure 3The working principle of the embodiment of the present application is as follows: the host computer sends the target inclination value to the communication module, the communication module sends the received target inclination value to the motor drive module, and at the same time, the angle sensor detects the current inclination of the first rotating frame 12 and feeds back the current inclination value to the motor drive module. The motor drive module powers the electric push rod 3 forward or reversely according to the difference between the current inclination value and the target inclination value, thereby controlling the extension or shortening of the electric push rod 3 to adjust the rotation angle of the first rotating frame 12. After the adjustment, the angle sensor detects the current inclination value again and feeds back to the motor drive module. The motor drive module continues to accurately drive the electric push rod 3 to move according to the difference between the current inclination value and the target inclination value, so as to make the actual inclination further approach the target inclination value, thereby forming a closed-loop feedback control.

[0071] Specifically, Figure 4 As shown, the control algorithm process of this embodiment is as follows: turn on the machine during the working period, the upper computer detects the solar time, and calculates the solar altitude angle according to the solar time, longitude and latitude and altitude, generates a target inclination value according to the solar altitude angle and sends it to the remote driver; the angle sensor in the remote driver detects the current inclination angle and feeds back the current inclination angle value to the motor drive module; the motor drive module determines whether the received current inclination angle value and the target inclination angle value are equal, if they are equal, the process ends; if the current inclination angle value is less than the target inclination angle value, the motor drive module reversely powers the electric push rod 3 to retract the electric push rod 3 and increase the inclination angle; if the current inclination angle value is greater than the target inclination angle value, the motor drive module forwardly powers the electric push rod 3 to extend the electric push rod 3 and reduce the inclination angle; after the adjustment is completed, the angle sensor detects the current actual inclination angle again, and feeds back the current inclination angle value to the motor drive module; the motor drive module compares the received current inclination angle value with the target inclination angle value again until the current inclination angle value is equal to the target inclination angle value.

[0072] Optionally, the flexible bracket further includes a second bracket body 2, the second bracket body 2 includes a plurality of second columns 21 arranged at intervals along the first direction, and a second rotating frame 22 is hingedly provided at the end of the second column 21; the second bracket body 2 also includes two second component cables 23 arranged in parallel, the two second component cables 23 extend along the first direction, and the two second component cables 23 are respectively connected to the two sides of each second rotating frame 22, and a second installation plane is formed between the two second component cables 23;

[0073] The second bracket body 2 is provided in plurality, and the first bracket body 1 and the plurality of the second bracket bodies 2 are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction;

[0074] Along the second direction, a transmission assembly is arranged between adjacent first rotating frames 12 and second rotating frames 22, and between two adjacent second rotating frames 22; the transmission assembly is used to transmit the movement of the first rotating frame 12 to the adjacent second rotating frame 22, or to transmit the movement of the second rotating frame 22 to another adjacent second rotating frame 22.

[0075] See also Figure 5 The second bracket body 2 includes a plurality of second columns 21, which are also spaced apart along the first direction. A second rotating frame 22 is hingedly provided at the end of the second column 21. The second rotating frame 22 serves as the installation base of the second component cable 23. The second component cable 23 is a steel cable with certain flexibility. Two second component cables 23 are respectively connected to the two sides of each second rotating frame 22. The two second component cables 23 are arranged in parallel and extend along the first direction. A second installation plane for installing the photovoltaic panel is formed between the two second component cables 23. The second rotating frame 22 is perpendicular to the direction of the second component cable 23. When all the second rotating frames 22 rotate synchronously around their respective hinged positions, the second installation plane rotates, and the angle between the second installation plane and the horizontal plane changes, thereby changing the inclination angle of the photovoltaic panel installed on the second installation plane.

[0076] The second bracket body 2 is provided with a plurality of them and is spaced apart along the second direction on both sides of the first bracket body 1. Along the second direction, a transmission assembly is provided between adjacent first rotating frames 12 and second rotating frames 22, and between two adjacent second rotating frames 22, and the motion is transmitted by mechanical linkage. When the first rotating frame 12 rotates, the second rotating frame 22 adjacent thereto is driven to rotate, and then the remaining second rotating frames 22 are driven to rotate in turn.

[0077] As an example, the first bracket body 1 is used as the driving group A, and the second bracket body 2 is used as the driven group B. Figure 5As shown, one driving group A is provided, and six driven groups B are provided and evenly distributed on the north and south sides of the driving group A. Extending from the driving group A to the north, the first driven group B1, the third driven group B3, and the fifth driven group B5 are arranged in sequence. Through the transmission assembly, the motion is transmitted from the driving group A to the first driven group B1, transmitted to the third driven group B3 through the first driven group B1, and transmitted to the fifth driven group B5 through the third driven group B3; extending from the driving group A to the south, the second driven group B2, the fourth driven group B4, and the sixth driven group B6 are arranged in sequence. Through the transmission assembly, the motion is transmitted from the driving group A to the second driven group B2, transmitted to the fourth driven group B4 through the second driven group B2, and transmitted to the sixth driven group B6 through the fourth driven group B4. Therefore, through the transmission assembly, the motion is transmitted from the driving group A to the north and south sides away from the driving group A, realizing the synchronization of the inclination adjustment between different rows of brackets. In this way, only one row of brackets is needed as driving group A to drive multiple rows of brackets to move synchronously. The structural layout is simple, which is conducive to saving equipment investment and reducing operating costs.

[0078] Optionally, the number of the second bracket bodies 2 may be an odd number or an even number, and may be symmetrically distributed on both sides of the first bracket body 1 or asymmetrically distributed.

[0079] Optionally, the transmission assembly includes a swing arm 41 and a push-pull rod 42; one end of the swing arm 41 is fixed to the first rotating frame 12 or the second rotating frame 22, and the other end of the swing arm 41 is hinged to the push-pull rod 42; along the second direction, the push-pull rod 42 is arranged between two adjacent swing arms 41, and both ends of the push-pull rod 42 are respectively hinged to the two adjacent swing arms 41.

[0080] For details, see Figure 6 and Figure 7 , swing arms 41 are fixedly provided on the first rotating frame 12 and the second rotating frame 22. In the second direction, a push-pull rod 42 is connected between two adjacent swing arms 41, and the two ends of the push-pull rod 42 are respectively hinged to the lower ends of the two adjacent swing arms 41. Since the hinge holes at the lower ends of all the swing arms 41 are at equal distances from the hinge centers of the first rotating frame 12 or the second rotating frame 22 connected thereto, a parallelogram connecting rod transmission mechanism is formed. When the first rotating frame 12 swings around its hinge point under the drive of the corresponding driving mechanism, the swing arms 41 on the first rotating frame 12 swing together, driving the push-pull rod 42 to move, and driving the adjacent swing arms 41 to move synchronously. Therefore, this swinging motion is synchronously transmitted to all the second rotating frames 22 through the parallelogram connecting rod transmission mechanism, and the motion is synchronously transmitted from the driving group A to all the driven groups B.

[0081] By setting a transmission component, the movement of the first rotating frame 12 is transmitted to the second rotating frame 22 in a mechanical transmission manner, so that the second rotating frame 22 moves synchronously with the first rotating frame 12, thereby realizing the synchronous adjustment of the inclination angles of photovoltaic panels on different rows of flexible brackets. Optionally, the mid-span adjustable inclination flexible photovoltaic bracket also includes a windproof component 5, and the windproof component 5 includes two windproof column units;

[0082] The windproof column unit comprises a first windproof column 51 and a second windproof column 52 arranged along the second direction, a first reinforcing rod 53 is arranged between the first windproof column 51 and the second windproof column 52, and two ends of the first reinforcing rod 53 are respectively connected to the first windproof column 51 and the second windproof column 52;

[0083] A windproof cable 54 is connected between the two windproof column units, and the windproof cable 54 extends along the second direction;

[0084] The first windproof column 51, the second windproof column 52 and the windproof cable 54 are all hingedly provided with support arms 55, and both sides of the support arms 55 are respectively connected to the first component cable 13 or the second component cable 23.

[0085] For details, see Figure 8 and Fig. 9 The two windproof column units are respectively located at the two ends of the windproof component 5, wherein the first windproof column 51 is on the outside and the second windproof column 52 is on the inside. A first reinforcing rod 53 is connected between the adjacent first windproof columns 51 and the second windproof columns 52. The first reinforcing rod 53 is a rigid part. By setting the first reinforcing rod 53, the structural strength of the windproof column unit can be enhanced and the wind resistance can be increased.

[0086] A windproof cable 54 is connected between the two second windproof columns 52, and the windproof cable 54 extends along the second direction. The windproof assembly 5 is arranged inside the square array formed by the first bracket body 1 and the plurality of second bracket bodies 2. The windproof cable 54 is perpendicular to the direction of the first assembly cable 13 and the second assembly cable 23, so there is an intersection area between the windproof cable 54 and the first assembly cable 13, and between the windproof cable 54 and the second assembly cable 23 in space, and a support arm 55 is arranged at the intersection area. For details, see Fig.10A hinge seat is provided on the windproof cable 54, and the support arm 55 provided on the windproof cable 54 has a structure similar to a triangle, one vertex of the triangle is hinged to the windproof cable 54 through the hinge seat, and the side opposite to the vertex is used to connect the first component cable 13 or the second component cable 23, and the two sides of the support arm 55 are respectively connected to the two first component cables 13 or respectively connected to the two second component cables 23 in the same second bracket body 2. The support arm 55 can rotate around the hinge seat, and while the windproof cable 54 provides wind protection, the support arm 55 can swing along with the movement of the first component cable 13 and the second component cable 23, without affecting the tilt adjustment movement.

[0087] Optionally, two first reinforcing rods 53 are arranged between the first windproof column 51 and the second windproof column 52, and the two first reinforcing rods 53 are arranged crosswise. Specifically, one end of one first reinforcing rod 53 is connected to the upper end of the first windproof column 51, and the other end is connected to the lower end of the second windproof column 52, and the other first reinforcing rod 53 is connected to the lower end of the first windproof column 51 at one end, and the other end is connected to the upper end of the second windproof column 52. The middle parts of the two first reinforcing rods 53 are crossed and fixed at the intersection, which plays a role of further reinforcement, enhances the structural strength of the windproof column unit, and improves the wind resistance performance.

[0088] In other embodiments, the first reinforcing rod 53 may also be replaced by a diagonal rod, one end of which is connected to the upper end of the second windproof column 52 , and the other end of which is connected to the lower end of the first windproof column 51 .

[0089] Optionally, a plurality of windproof components 5 are provided, and the plurality of windproof components 5 are arranged at intervals along the first direction.

[0090] See also Figure 8 Specifically, the windproof column units are located at the southernmost and northernmost sides of the entire array. Since the wind pressure is greatest at the edge of the array and decreases at the center of the array, the windproof column units are set at the edge of the entire array, and two first reinforcing rods 53 are cross-arranged to reinforce the windproof units, which is beneficial to resisting wind pressure. The central area of ​​the array is protected from the wind by windproof cables 54, which not only ensures wind resistance but also helps save steel materials and reduce construction costs.

[0091] In order to further strengthen the windproof design of the north and south edges of the square array, two cross-arranged first reinforcing rods 53 can be provided between the two southernmost rows of second columns 21 and between the two northernmost rows of second columns 21 in the north-south direction for reinforcement. Figure 8 As shown, a windproof structure similar to a windproof unit is formed to improve the windproof performance of the north and south edges of the array.

[0092] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0093] It should also be noted that, in this article, the orientation or position relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations, nor can they be understood as indicating or implying relative importance. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal device. Without more restrictions, an element defined by the phrase "comprising a ..." does not exclude the existence of other identical elements in the process, method, article or terminal device comprising the element.

[0094] The technical solution provided by the present application is described in detail above. The principle and implementation method of the present application are described in this article using specific examples. The description of the above embodiments is only used to help understand the present application, and the content of this specification should not be understood as limiting the present application. At the same time, for those of ordinary skill in the art, according to the present application, there will be different forms of changes in the specific implementation methods and application scopes. It is not necessary and impossible to list all the implementation methods here, and the obvious changes or modifications derived therefrom are still within the scope of protection of the present application.

Claims

1. A mid-span flexible photovoltaic support tilt angle synchronous adjustment system, characterized in that: include: Flexible bracket, driving mechanism, host computer and remote driver; The flexible bracket includes a first bracket body, the first bracket body includes a plurality of first columns arranged at intervals along a first direction, and a first rotating frame is hingedly provided at the end of the first column; the first bracket body also includes two first component cables arranged in parallel, the two first component cables extend along the first direction, and the two first component cables are respectively connected to two sides of each first rotating frame, and a first installation plane is formed between the two first component cables; The driving mechanism is provided in plurality, and the plurality of driving mechanisms correspond to the plurality of first rotating frames one by one, and the driving mechanism is connected to the first rotating frames, and the driving mechanism is used to drive the corresponding first rotating frames to rotate; A plurality of the remote drivers are connected to the host computer, and the host computer is used to generate a target inclination angle value; There are multiple remote drivers, and the multiple remote drivers correspond one-to-one to the multiple driving mechanisms; the remote driver is used to receive the target inclination value sent by the host computer, and control the corresponding driving mechanism to run or stop according to the target inclination value.

2. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 1 is characterized in that: The remote driver includes a communication module, a motor drive module and an angle sensor; The angle sensor is arranged on the first rotating frame, the output end of the angle sensor is connected to the input end of the motor driving module, and the angle sensor is used to detect the current inclination value of the corresponding first rotating frame and send the current inclination value to the motor driving module; The input end of the communication module is connected to the output end of the host computer, and the output end of the communication module is connected to the input end of the motor drive module; the communication module is used to receive the target inclination angle value sent by the host computer, and send the target inclination angle value to the motor drive module; The motor driving module is connected to the driving mechanism, and is used to drive the corresponding driving mechanism to run or stop according to the target inclination value and the current inclination value until the inclination of the first rotating frame changes to the target inclination value.

3. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 2 is characterized in that: The host computer includes an inclination angle calculation module, which calculates the solar altitude angle according to the solar time, longitude and latitude, and altitude, and generates the target inclination angle value according to the solar altitude angle.

4. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 1, characterized in that: The plurality of remote drivers are connected to the host computer via a communication line or wireless communication.

5. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 1, characterized in that: The driving mechanism is an electric push rod, one end of which is hinged to the first column, and the other end of which is hinged to the first rotating frame.

6. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 1, characterized in that: The flexible bracket further includes a second bracket body, the second bracket body includes a plurality of second columns arranged at intervals along the first direction, and a second rotating frame is hingedly provided at the end of the second column; the second bracket body further includes two second component cables arranged in parallel, the two second component cables extend along the first direction, and the two second component cables are respectively connected to two sides of each second rotating frame, and a second installation plane is formed between the two second component cables; The second bracket body is provided in plurality, the first bracket body and the plurality of the second bracket bodies are arranged at intervals along a second direction, and the second direction is perpendicular to the first direction; Along the second direction, a transmission assembly is arranged between adjacent first rotating frames and second rotating frames, and between two adjacent second rotating frames; the transmission assembly is used to transmit the movement of the first rotating frame to the adjacent second rotating frame, or to transmit the movement of the second rotating frame to another adjacent second rotating frame.

7. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 6, characterized in that: The transmission assembly includes a swing arm and a push-pull rod; One end of the swing arm is fixed to the first rotating frame or the second rotating frame, and the other end of the swing arm is hinged to the push-pull rod; along the second direction, the push-pull rod is arranged between two adjacent swing arms, and both ends of the push-pull rod are respectively hinged to the two adjacent swing arms.

8. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 1, characterized in that: The flexible bracket also includes a windproof component, and the windproof component includes two windproof column units; The windproof column unit comprises a first windproof column and a second windproof column arranged along the second direction, a first reinforcing rod is arranged between the first windproof column and the second windproof column, and two ends of the first reinforcing rod are respectively connected to the first windproof column and the second windproof column; A windproof cable is connected between the two windproof column units, and the windproof cable extends along the second direction; support arms are hingedly provided on the first windproof column, the second windproof column and the windproof cable, and both sides of the support arms are respectively connected to the first component cable or the second component cable.

9. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 8, characterized in that: Two first reinforcing rods are arranged between the first windproof column and the second windproof column, and the two first reinforcing rods are cross-arranged.

10. The mid-span flexible photovoltaic support tilt synchronous adjustment system according to claim 9, characterized in that: A plurality of the windproof components are provided, and the plurality of the windproof components are arranged at intervals along the first direction.

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