Large amplitude reservoir type flexible photovoltaic system and method of installation and maintenance thereof

Abstract

A large-amplitude reservoir type flexible photovoltaic system and its installation and maintenance method, comprising a cableway unit, a photovoltaic unit and a maintenance unit, the cableway unit comprises anchor points and deck cables, the periphery of the reservoir basin is provided with a platform, opposite sides of the platform are respectively provided with a plurality of anchor points, corresponding anchor points on the two sides are respectively provided with deck cables, the photovoltaic unit comprises a photovoltaic panel group, the bottom of the photovoltaic panel group is clamped and installed on at least two deck cables through a plurality of panel wheels, and the two ends of the photovoltaic panel group are connected with the anchor points through locking ropes; the maintenance unit comprises a plurality of maintenance vehicles, the maintenance vehicles move on the platform, and the maintenance vehicles are provided with a winding and unwinding device for winding and unwinding the photovoltaic panel group and a tensioning device for tensioning the deck cables. Through the above structure, the installation, operation and maintenance of the photovoltaic panel in the reservoir basin of the pumped storage reservoir can be realized.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic installation, operation and maintenance technology for pumped reservoirs, and in particular to a flexible photovoltaic system for large-amplitude reservoirs and its installation, operation and maintenance methods. Background Technology

[0002] Pumped storage power stations are energy storage devices with power regulation functions. They are characterized by upper and lower reservoirs with large water areas and different elevations. How to fully utilize the reservoir surface area of ​​pumped storage power stations to achieve greater engineering, economic, and social benefits is a topic worthy of research, but currently there is no mature technology for this. Utilizing the upper and lower reservoir surfaces for power generation can not only increase power output but also partially block water evaporation losses caused by sunlight reaching the water surface. Because the reservoir basin stores a large amount of water, and the reservoir level fluctuates greatly, resulting in significant changes in reservoir area, how to install, operate, and maintain photovoltaic panels under these operating conditions is also a challenge in the industry. Therefore, this application proposes a flexible photovoltaic system for large-amplitude reservoirs and its installation, operation, and maintenance methods. Summary of the Invention

[0003] To address the existing technical problems, the main objective of this invention is to provide a large-amplitude reservoir-type flexible photovoltaic system for installing photovoltaic panels above the reservoir surface of a pumped storage power station.

[0004] The present invention also provides an installation method for a large-amplitude reservoir-type flexible photovoltaic system, which is used to install photovoltaic panels on the reservoir surface of a pumped storage power station.

[0005] This invention also provides a maintenance method for a large-amplitude reservoir-type flexible photovoltaic system, used for the maintenance of photovoltaic panels in pumped storage power stations.

[0006] The technical solution adopted in this invention is: a large-amplitude reservoir-type flexible photovoltaic system, including a cableway unit, a photovoltaic unit, and a maintenance unit. The cableway unit includes anchor points and support cables. A platform is set around the reservoir basin, and multiple anchor points are installed on opposite sides of the platform. Support cables are installed on the corresponding anchor points on both sides. The photovoltaic unit includes photovoltaic panels. The bottom of the photovoltaic panels is clamped and installed on at least two support cables by multiple plate wheels. The two ends of the photovoltaic panels are connected to the anchor points by locking ropes. The maintenance unit includes multiple maintenance vehicles that move on the platform. The maintenance vehicles are equipped with a device for deploying and retracting the photovoltaic panels and a tensioning device for tensioning the support cables.

[0007] The anchor point is provided with a conical groove, the diameter of which decreases from the platform to the basin side. The top of the anchor point has a slot that connects to the conical groove. Two cone-shaped plug plates are installed inside the conical groove, and the two plug plates hold the support cable.

[0008] A first pad is installed on the inner side of the plug plate.

[0009] A locking ring is provided at the top of the anchor point, and the locking rope is connected and fixed to the locking ring.

[0010] Both ends of the bearing plate cable are provided with cable stop ends.

[0011] The photovoltaic unit also includes a combiner box, an inverter, and a transformer. Each photovoltaic panel is electrically connected to the combiner box via cables, the combiner box is electrically connected to the inverter, and the inverter is electrically connected to the transformer.

[0012] The photovoltaic panel group on the support cable consists of two groups. The adjacent ends of the two groups of photovoltaic panels are not connected, and the ends that are far apart from each other are connected to the anchor point by locking ropes.

[0013] The photovoltaic panel assembly includes multiple photovoltaic panels, each with a connecting plate at both ends, and adjacent photovoltaic panels are connected by the connecting plates.

[0014] The connecting plates between adjacent photovoltaic panels are hinged by pins.

[0015] The plate wheel includes an upper clamping wheel, a lower clamping wheel, and a vertical plate. The upper clamping wheel and the lower clamping wheel are mounted between the two vertical plates and rotate vertically. The plate support cable is located between the upper clamping wheel and the lower clamping wheel.

[0016] The platform is equipped with a track, and the bottom of the maintenance vehicle is equipped with a track wheel set, which allows the maintenance vehicle to travel on the track.

[0017] The winding and unwinding device is a winch, which is installed on the top of the maintenance vehicle. A traction rope is installed on the winch, and when the traction rope is connected to the photovoltaic panel group, it is used to wind up and unwind the photovoltaic panel group.

[0018] The maintenance vehicle is equipped with a support roller on the side near the tank, which is used to support the traction rope.

[0019] The tensioning device includes a fixed clamp and a movable clamp, which are used to clamp the support plate cable. A guide rail is installed on the side of the fixed clamp away from the tank on the maintenance vehicle. A guide seat is installed at the bottom of the movable clamp. The movable clamp is slidably mounted on the guide rail through the guide seat. A step-changing cylinder is installed on the fixed clamp or on the maintenance vehicle. The step-changing cylinder is connected to the movable clamp. The extension and retraction of the step-changing cylinder drives the movable clamp to move on the guide rail.

[0020] The fixed and movable clamping seats have the same structure. The fixed clamping seat includes a mounting base, a clamping block, and a clamping cylinder. The mounting base is provided with a groove that is wider at the top and narrower at the bottom. The clamping block is a semi-ring structure, and there are two clamping blocks. The bottom ends of the two clamping blocks are hinged together by a hinge seat. The lower part of the groove of the mounting base is provided with a mounting cavity. The clamping cylinder is installed in the mounting cavity, and the telescopic end of the clamping cylinder is hinged to the hinge seat.

[0021] A second pad is installed on the inner side of the clamping block.

[0022] The guide rail has multiple pin holes along its length, and the guide seat has a limiting hole. The limiting pin is inserted into the limiting hole and one of the pin holes to limit and fix the movable card seat to the guide rail.

[0023] A rope-supporting device is hinged to the side of the fixed mounting base near the storage basin on the maintenance vehicle. The rope-supporting device includes a support plate and a support plate cylinder. The support plate is hinged to the maintenance vehicle, and one end of the support plate cylinder is hinged to the maintenance vehicle, while the other end is hinged to the support plate.

[0024] The maintenance vehicle is also equipped with a locking cylinder, and a locking groove is set on the platform at the position of the corresponding photovoltaic panel group. When the telescopic end of the locking cylinder extends, it is inserted into the locking groove.

[0025] The maintenance vehicle is also equipped with a counterweight.

[0026] The maintenance vehicle is also equipped with an electrical control cabinet and a communication box, which control the operation of the take-up and tensioning devices.

[0027] The anchor point is also equipped with a rope locking device, and maintenance cables are connected to the rope locking devices on both sides corresponding to the anchor points. The maintenance cables are located above the photovoltaic panel assembly.

[0028] The lower end of the locking rope extends into the ground after passing through the anchor point.

[0029] The installation method for implementing the large-amplitude reservoir-type flexible photovoltaic system includes the following steps:

[0030] S1. Install the support cable; drive the two maintenance vehicles to the positions where the support cable needs to be installed, first install the auxiliary cable onto the retraction device of one maintenance vehicle, then install the support cable onto the retraction device of the other maintenance vehicle, connect the auxiliary cable to the support cable, and pull the support cable across the tank by pulling the auxiliary cable through the retraction device. After pulling it into place, remove the auxiliary cable and connect and fix both ends of the support cable to the anchor points on both sides respectively.

[0031] S2. The shunting of photovoltaic panels; The shunting method of photovoltaic panels includes installing two sets of photovoltaic panels on the left and right sides respectively on the support cable of the same group, and installing one set of photovoltaic panels on the support cable of the same group;

[0032] The steps for installing the left and right sets of photovoltaic panels on the same set of support plates are as follows:

[0033] When installing one set of photovoltaic panels, first lock the maintenance vehicle to one end of a set of support cables. Then, connect the first photovoltaic panel with the wheel and cable installed to the anchor point using the locking rope. Install the photovoltaic panel onto the set of support cables using the wheel. Then, connect the photovoltaic panel to the anchor point using the pull rope on the take-up and release device, and release the locking rope to the photovoltaic panel. Release the pull rope using the take-up and release device until there is space for the second photovoltaic panel near the anchor point on the support cable. Connect the second photovoltaic panel to the anchor point using the locking rope, and then install the second photovoltaic panel onto this set of support cables using the wheel. Then, fine-tune the take-up and release pull rope using the take-up and release device to connect the first and second photovoltaic panels. Continue in this manner until all photovoltaic panels in this set are installed. The installation of photovoltaic panels on the other side of the same set of support cables is carried out in the same way. After installation, connect and fix the photovoltaic panel near the anchor point using the locking rope.

[0034] The steps for installing a set of photovoltaic panels on the same group of support cables are as follows:

[0035] Lock a maintenance vehicle to one end of a set of support cables. Then, connect the first photovoltaic panel, equipped with a plate wheel and cable, to the anchor point via a locking rope. Install the photovoltaic panel onto the set of support cables via the plate wheel. Connect the photovoltaic panel to the pull rope on the retraction device. Connect the pull rope of the retraction device on the maintenance vehicle at the other end of the support cable to the side of the first photovoltaic panel near the reservoir. Then, release the connection between the locking rope and the photovoltaic panel. The retraction device on one end of the maintenance vehicle releases the pull rope, and the retraction device on the other end of the maintenance vehicle retracts the pull rope until there is space for the installation of the second photovoltaic panel on the support cable near the anchor point. After connecting the second photovoltaic panel to the locking rope, fine-tune the retraction pull rope through the retraction device to connect the first and second photovoltaic panels. Repeat this process until all photovoltaic panels on this side are installed. After installation, connect and fix the photovoltaic panels at both ends to the anchor points on both sides via locking ropes.

[0036] S3. Adjustment of the sag of the bearing cable; Lock a maintenance vehicle at one end of a set of bearing cables. Place the end of the bearing cable on the platform onto the fixed bracket and the movable bracket in sequence. First, move the movable bracket along the guide rail to the position closest to the fixed bracket under the drive of the step-changing cylinder. The clamping cylinders on the fixed bracket and the movable bracket extend, and the two clamping blocks move upward and open, allowing the bearing cable to be placed into the two clamping blocks. Then, the clamping cylinder of the movable bracket retracts, and the movable bracket clamps and fixes the bearing cable. Finally, the piston of the step-changing cylinder extends. The lever and movable bracket move along the guide rail, moving and tensioning the bearing cable together. If the bearing cable is not tensioned when the movable bracket reaches the end of its stroke, the clamping cylinder of the fixed bracket retracts, and the fixed bracket clamps and fixes the bearing cable. Then, the clamping cylinder of the movable bracket extends to release the bearing cable, and the step-changing cylinder retracts to move the movable bracket closer to the fixed bracket. The above steps are repeated until the bearing cable is tensioned in place. Then, the bearing cable is connected and fixed to the anchor point to complete the adjustment operation. The loosening of the bearing cable is done by reversing the above steps.

[0037] The maintenance method for implementing the aforementioned large-amplitude reservoir-type flexible photovoltaic system includes the following steps:

[0038] When inspecting or repairing photovoltaic panels, personnel climb onto the panels to perform the inspection or repair. The personnel attach safety belts to the inspection ropes, which also serve as handrails.

[0039] The present invention has the following beneficial effects:

[0040] 1. The cableway unit of this invention is used to install photovoltaic panels of a photovoltaic unit. The photovoltaic unit generates electricity through the photovoltaic panels. The maintenance unit is used for the installation and adjustment of the cableway unit and the photovoltaic panels. Anchor points are used to connect the support cable and the locking rope. The bottom of the photovoltaic panel has a plate wheel for slidingly clamping and installing it onto the support cable, facilitating the installation and replacement of the photovoltaic panel. With the above structure, it is possible to install photovoltaic panels within the basin of a pumped-storage reservoir. This structure also enables the installation and maintenance of photovoltaic panels within the basin of a pumped-storage reservoir.

[0041] 2. This patent uses a simple anchor point, bearing plate cable, and maintenance cable method to realize the laying and reliable use of large-span flexible bracket photovoltaic panels. It has strong load-bearing capacity, large photovoltaic panel laying volume, and very high power generation efficiency.

[0042] 3. This patented multi-functional maintenance vehicle, with its innovative design, allows for convenient and reliable installation or removal of photovoltaic panels quickly and efficiently, avoiding the problems of poor economic efficiency, high site requirements, and cumbersome procedures associated with using heavy-duty lifting machinery.

[0043] 4. In addition to using a maintenance vehicle for maintenance, this patent also innovatively designs a maintenance cable, allowing personnel to climb onto the photovoltaic panels for inspection and maintenance. This not only ensures the safety of personnel during maintenance but also fully leverages the flexibility and efficiency of personnel operations. Furthermore, it serves as a lightning protection mechanism, making it highly practical. Attached Figure Description

[0044] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0045] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0046] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0047] Figure 2 This is a schematic cross-sectional view of the present invention.

[0048] Figure 3 This is a top view of the structure of the present invention.

[0049] Figure 4 This is a schematic diagram of the main structure of the anchor point of the present invention.

[0050] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of AA.

[0051] Figure 6 This is a schematic diagram showing the connection between the maintenance unit and the support plate cable of the present invention.

[0052] Figure 7 This is a schematic diagram of the main structure of the maintenance unit of the present invention.

[0053] Figure 8 This is a schematic diagram of the left-side structure of the maintenance unit of the present invention.

[0054] Figure 9 This is a schematic diagram of the fixed card holder and the movable card holder of the present invention.

[0055] Figure 10 This is a schematic diagram of the structure of the plate wheel of the present invention mounted on the bearing cable.

[0056] In the picture:

[0057] Storage basin 100, platform 101, track 102, locking groove 103;

[0058] Cableway unit 200, anchor point 210, conical groove 211, plug plate 212, rope locking component 213, locking ring 214, first pad plate 215, bearing plate cable 220, cable stop end 221, maintenance cable 230.

[0059] Photovoltaic unit 300, photovoltaic panel 310, connecting plate 311, pin 312, locking rope 313, plate wheel 320, upper clamping wheel 321, lower clamping wheel 322, vertical plate 323, combiner box 330, inverter 340, transformer 350;

[0060] Maintenance unit 400, maintenance cart 410, track wheel set 411, locking cylinder 412, electrical control cabinet 413, communication box 414, counterweight 415, support roller 416, take-up and release device 420, traction rope 421, fixed bracket 430, mounting base 431, slot 432, clamping block 433, mounting cavity 434, hinge 435, clamping cylinder 436, second pad 437, movable bracket 440, guide seat 441, limit hole 442, guide rail 450, pin hole 451, step change cylinder 460, rope support device 470, support plate 471, support plate cylinder 472. Detailed Implementation

[0061] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0062] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0063] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0064] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0065] Example 1:

[0066] See Figure 1-3 As shown, a large-amplitude reservoir-type flexible photovoltaic system includes a cableway unit 200, a photovoltaic unit 300, and a maintenance unit 400. The cableway unit 200 includes anchor points 210 and support cables 220. A platform 101 is arranged around the perimeter of the reservoir 100. Multiple anchor points 210 are installed on opposite sides of the platform 101, and support cables 220 are installed on the corresponding anchor points 210 on both sides. The photovoltaic unit 300 includes photovoltaic panel groups. The bottom of the photovoltaic panel group is clamped and installed on at least two support cables 220 by multiple plate wheels 320. The two ends of the photovoltaic panel group are connected to the anchor points 210 by locking ropes 313. The maintenance unit 400 includes multiple maintenance vehicles 410. The maintenance vehicles 410 move on the platform 101. The maintenance vehicles 410 are equipped with a retraction device 420 for retracting and deploying the photovoltaic panel group and a tensioning device for tensioning the support cables 220.

[0067] The cableway unit 200 is used to install the photovoltaic panel assembly of the photovoltaic unit 300. The photovoltaic unit 300 generates electricity through the photovoltaic panel assembly. The maintenance unit 400 is used for the installation and adjustment of the cableway unit 200 and the photovoltaic panel assembly. The anchor point 210 is used to connect the support cable 220 and the locking rope 313. The bottom of the photovoltaic panel assembly has a plate wheel 320, which is used for sliding clamping and mounting onto the support cable 220, facilitating the installation and replacement of the photovoltaic panel assembly. With the above structure, it is possible to install photovoltaic panels within the reservoir basin 100 of a pumped water reservoir.

[0068] See Figure 4 , 5 Anchor point 210 is provided with a conical groove 211. The diameter of the conical groove 211 decreases from the platform 101 towards the reservoir 100. The top of anchor point 210 has an opening that connects to the conical groove 211. Two conical plug plates 212 are installed inside the conical groove 211, and the two plug plates 212 clamp the support cable 220. By clamping the support cable 220 with the two conical plug plates 212, the connection between the support cable 220 and anchor point 210 is convenient and reliable.

[0069] Further, see Figure 4A first pad 215 is installed on the inner side of the plug plate 212. Specifically, the first pad 215 is a copper pad that fits into the inner hole of the plug plate 212. Because the copper pad has a higher coefficient of friction and is easily deformable, it generates greater friction between itself and the support cable 220 after being subjected to compressive force. In addition, the tapered structure of the plug plate 212 allows the plug plate 212 to clamp the support cable 220 tightly when it is locked outside, ensuring that the support cable 220 does not come off the anchor point.

[0070] See Figure 4 , 5 A locking ring 214 is provided at the top of the anchor point 210, and the locking rope 313 is connected and fixed to the locking ring 214.

[0071] Further, see Figure 5 Both ends of the support cable 220 are equipped with stop ends 221. The stop ends 221 serve only as a safety measure after slippage, preventing the support cable 220 from slipping off the anchor point 210. Specifically, the diameter of the stop end 221 is larger than the minor diameter of the tapered groove 211.

[0072] See Figure 1 The photovoltaic unit 300 also includes a combiner box 330, an inverter 340, and a transformer 350. Each photovoltaic panel is electrically connected to the combiner box 330 via cables. The combiner box 330 is electrically connected to the inverter 340, and the inverter 340 is electrically connected to the transformer 350. The current collected through the cables is first aggregated by the combiner box, then converted from direct current to alternating current by the inverter, and finally stepped up by the transformer before being transmitted externally.

[0073] In one embodiment, there are two sets of photovoltaic panels on the support cable 220 (not shown in the figure). The adjacent ends of the two sets of photovoltaic panels are not connected, and the ends that are far apart from each other are connected to the anchor point 210 by locking rope 313.

[0074] See Figure 6 The photovoltaic panel array includes multiple photovoltaic panels 310, and each photovoltaic panel 310 has a connecting plate 311 at both ends. Adjacent photovoltaic panels 310 are connected by the connecting plates 311. The connecting plates 311 facilitate the connection between adjacent photovoltaic panels 310. During connection, the connecting plates 311 are provided with holes, and the connecting plates 311 of adjacent photovoltaic panels 310 can be connected by bolts or steel wire ropes.

[0075] In one embodiment, the connecting plate 311 between adjacent photovoltaic panels 310 is hinged by a pin 312.

[0076] See Figure 6 and Figure 10The plate wheel 320 includes an upper clamping wheel 321, a lower clamping wheel 322, and a vertical plate 323. The upper clamping wheel 321 and the lower clamping wheel 322 are mounted vertically and vertically between the two vertical plates 323. The support cable 220 is located between the upper clamping wheel 321 and the lower clamping wheel 322. Multiple sets of plate wheels 320 are set under each photovoltaic panel so that the photovoltaic panel can be retrieved and released on the support cable 220 under the traction of the maintenance vehicle. Each set of plate wheels is divided into an upper clamping wheel 321 above the support cable and a lower clamping wheel 322 below the support cable. The upper clamping wheel 321 and the lower clamping wheel 322 are reliably clamped to the support cable by bolts connected to the vertical plates 323 on both sides, ensuring that the photovoltaic panel will not derail from the support cable during installation or operation.

[0077] See Figure 6-8 The platform 101 is equipped with a track 102, and the bottom of the maintenance vehicle 410 is equipped with a track wheel set 411. The maintenance vehicle 410 travels on the track 102 via the track wheel set 411.

[0078] In one embodiment, the take-up and take-down device 420 is a winch, which is installed on the top of the maintenance vehicle 410. A traction rope 421 is installed on the winch, which is used to take up and take down the photovoltaic panel group when connected to the photovoltaic panel group.

[0079] See Figure 7 A support roller 416 is installed on the side of the maintenance vehicle 410 near the storage basin 100. The support roller 416 is used to support the traction rope 421 and prevent the traction rope 421 from rubbing against the maintenance vehicle 410.

[0080] See Figure 6-8 The tensioning device includes a fixed clamping seat 430 and a movable clamping seat 440, which are used to clamp the support cable 220. A guide rail 450 is installed on the side of the fixed clamping seat 430 away from the storage basin 100 on the maintenance trolley 410. A guide seat 441 is installed at the bottom of the movable clamping seat 440, and the movable clamping seat 440 is slidably mounted on the guide rail 450 via the guide seat 441. A step-changing cylinder 460 is installed on the fixed clamping seat 430 or on the maintenance trolley 410. The step-changing cylinder 460 is connected to the movable clamping seat 440, and its extension and retraction drive the movable clamping seat 440 to move on the guide rail 450. In use, the tension or relaxation of the support cable 220 can be adjusted by the cooperation of the fixed clamping seat 430 and the movable clamping seat 440, thereby adjusting the sag of the support cable 220.

[0081] For details, see Figure 9The fixed bracket 430 and the movable bracket 440 have the same structure. The fixed bracket 430 includes a mounting base 431, a clamping block 433, and a clamping cylinder 436. The mounting base 431 is provided with a slot 432 that is wider at the top and narrower at the bottom. The clamping block 433 has a semi-ring structure, and there are two clamping blocks 433. The lower ends of the two clamping blocks 433 are hinged together by a hinge seat 435. The lower part of the slot 432 of the mounting base 431 is provided with a mounting cavity 434. The clamping cylinder 436 is installed in the mounting cavity 434, and the telescopic end of the clamping cylinder 436 is hinged to the hinge seat 435. By the action of the clamping cylinder 436, the support plate cable 220 can be clamped or released.

[0082] Furthermore, a second pad 437 is installed on the inner side of the clamping block 433. The second pad 437 is made of copper and has the same function as the first pad 215 inside the plug plate 212.

[0083] Further, see Figure 7 , 8 The guide rail 450 has multiple pin holes 451 along its length. The guide seat 441 has a limiting hole 442. A limiting pin 443 is inserted into the limiting hole 442 and one of the pin holes 451 to limit and fix the movable holder 440 to the guide rail 450. When the movable holder 440 clamps the support plate cable 220 and the fixed holder 430 releases the support plate cable 220, the limiting pin 443 is inserted into the limiting hole 442 and one of the pin holes 451 to limit and fix the movable holder 440 to the guide rail 450, preventing the movable holder 440 from slipping or the clamping cylinder 436 from malfunctioning and leaking, thus preventing accidents.

[0084] See Figure 6 , 7 A rope-supporting device 470 is hinged to the side of the fixed bracket 430 near the storage basin 100 on the maintenance vehicle 410. The rope-supporting device 470 includes a support plate 471 and a support plate cylinder 472. The support plate 471 is hinged to the maintenance vehicle 410, and one end of the support plate cylinder 472 is hinged to the maintenance vehicle 410, while the other end is hinged to the support plate 471. When tensioning the bearing cable 220, the support plate 471 of the rope-supporting device 470 supports the bearing cable 220, allowing the bearing cable 220 to pass straight through the fixed bracket 430 and the movable bracket 440.

[0085] See also Figure 6 , 7The maintenance vehicle 410 is also equipped with a locking cylinder 412, and a locking groove 103 is provided on the platform 101 at the position corresponding to the photovoltaic panel group. When the telescopic end of the locking cylinder 412 extends, it inserts into the locking groove 103. Since the maintenance vehicle 410 operates under unilateral force, to improve its stability, when the maintenance vehicle 410 stops, the telescopic end of the locking cylinder 412 extends and inserts into the pre-dug locking groove 103 on the platform 101 to increase its anti-tipping capability. Multiple locking cylinders 412 can be installed around the maintenance vehicle 410.

[0086] Furthermore, the maintenance vehicle 410 is also equipped with a counterweight 415 to further enhance its anti-overturning capability.

[0087] See Figure 7 The maintenance vehicle 410 is also equipped with an electrical control cabinet 413 and a communication box 414, which control the operation of the take-up and release device 420 and the tensioning device. The electrical control cabinet 413 and the communication box 414 are used to supply power and control the winch, clamping cylinder 436 and step change cylinder 460.

[0088] Example 2:

[0089] Based on Example 1, see Figure 2 , 4 5. Anchor point 210 is also equipped with a rope locking component 213. Maintenance ropes 230 are connected to the rope locking components 213 on both sides corresponding to the anchor point 210. The maintenance ropes 230 are located above the photovoltaic panel assembly. On one hand, they serve as a handrail when personnel climb onto the photovoltaic panel 310 for maintenance; on the other hand, they can also be used to attach safety belts or safety ropes to ensure the safety of maintenance personnel.

[0090] Furthermore, the lower end of the locking rope component 213 passes through the anchor point 210 and extends into the ground. Because the height of the maintenance cable 230 is higher than that of the support cable and the photovoltaic panel, in the event of a lightning strike, the lightning will first be introduced to the ground through the maintenance cable and the locking rope component 213, thus achieving the effect of lightning protection. Specifically, the upper end of the locking rope component 213 is loop-shaped, and the lower end is rod-shaped, extending into the ground.

[0091] Example 3:

[0092] An installation method for implementing the aforementioned large-amplitude reservoir-type flexible photovoltaic system includes the following steps:

[0093] S1. Install the support cable 220; drive the two maintenance vehicles 410 to the positions where the support cable 220 needs to be installed, first install the auxiliary cable onto the take-up and release device 420 of one maintenance vehicle 410, then install the support cable 220 onto the take-up and release device 420 of the other maintenance vehicle 410, connect the auxiliary cable to the support cable 220, and pull the support cable 220 across the reservoir 100 by pulling the auxiliary cable through the take-up and release device 420. After pulling it into place, remove the auxiliary cable and connect and fix the two ends of the support cable 220 to the anchor points 210 on both sides respectively.

[0094] S2. The shunting of photovoltaic panels; The shunting method of photovoltaic panels includes installing two sets of photovoltaic panels on the left and right sides respectively on the support cable 220 of the same group, and installing one set of photovoltaic panels on the support cable 220 of the same group;

[0095] The steps for installing the left and right sets of photovoltaic panels on the same set of support plates are as follows:

[0096] When installing one set of photovoltaic panels, first lock the maintenance vehicle 410 to one end of a set of support cables 220. Then, connect the first photovoltaic panel 310, equipped with the plate wheel 320 and cable, to the anchor point 210 via the locking rope 313. Install the photovoltaic panel 310 onto the set of support cables 220 via the plate wheel 320. After connecting the photovoltaic panel 310 with the pull rope on the take-up and release device 420, apply force, release the connection between the locking rope 313 and the photovoltaic panel 310, and release the pull rope until the second support cable 220 is left near the anchor point 210. To install the photovoltaic panel, connect the second photovoltaic panel to the anchor point 210 using the locking rope 313, then install the second photovoltaic panel onto the set of support cables 220 using the plate wheel 320. Use the retracting device 420 to fine-tune the retracting and releasing of the pulling rope to connect the first and second photovoltaic panels. Repeat this process until all photovoltaic panels in the set are installed. The installation of photovoltaic panels on the other side of the same set of support cables is carried out in the same way. After installation, connect and fix the photovoltaic panel closest to the anchor point 210 to the anchor point 210 using the locking rope 313.

[0097] The steps for installing a photovoltaic panel group on the same group of support plate cable 220 are as follows:

[0098] A maintenance vehicle 410 is locked to one end of a set of support cables 220. The first photovoltaic panel 310, equipped with a wheel 320 and cables, is then connected to an anchor point 210 via a locking rope 313. The photovoltaic panel 310 is then mounted onto the set of support cables 220 via the wheel 320. The photovoltaic panel 310 is then connected to the other end of the support cable 220 via a pull rope on a take-up and release device 420. The pull rope of the take-up and release device 420 on the maintenance vehicle 410 is then connected to the side of the first photovoltaic panel closest to the reservoir. Finally, the locking rope 313 is released from the photovoltaic panel. The pull rope is released by the retraction device 420 on one end of the maintenance vehicle 410, and the pull rope is pulled in by the retraction device 420 on the other end of the maintenance vehicle 410 until the installation space of the second photovoltaic panel is left on the support cable 220 near the anchor point. After the second photovoltaic panel is connected to the locking rope, the retraction device 420 is used to finely adjust the retraction pull rope so that the first and second photovoltaic panels can be connected. This process is repeated until all photovoltaic panels on this side are installed. After installation, the photovoltaic panels at both ends are connected and fixed to the anchor points 210 on both sides by the locking rope 313.

[0099] S3. Adjusting the sag of the support cable 220; Lock a maintenance vehicle 410 to one end of a set of support cables 220, and place the end of the support cable 220 located on the platform 101 onto the fixed bracket 430 and the movable bracket 440 in sequence. First, move the movable bracket 440 along the guide rail 450 to the position closest to the fixed bracket 430 under the drive of the step-changing cylinder 460. The clamping cylinders 436 on the fixed bracket 430 and the movable bracket 440 extend, and the two clamping blocks 433 move upward and open, placing the support cable 220 into the two clamping blocks 433. Then, the clamping cylinder 436 of the movable bracket 440 retracts, and the movable bracket 440 clamps and fixes the support cable 220. Then, the step-changing cylinder 460... Extend the piston rod, and the movable bracket 440 moves along the guide rail 450, moving and tensioning the bearing cable 220 together. If the movable bracket 440 moves to the end of its stroke but the bearing cable 220 is not tensioned, the clamping cylinder 436 of the fixed bracket 430 retracts, and the fixed bracket 430 clamps and fixes the bearing cable 220. Then, the clamping cylinder 436 of the movable bracket 440 extends to release the bearing cable 220, and then retracts the step-changing cylinder 460 to move the movable bracket 440 closer to the fixed bracket 430. Repeat the above steps until the bearing cable 220 is tensioned in place. Then, the bearing cable 220 is connected and fixed to the anchor point 210 to complete the adjustment operation. To loosen the bearing cable 220, the above steps are reversed.

[0100] Example 4:

[0101] The maintenance method for implementing the aforementioned large-amplitude reservoir-type flexible photovoltaic system includes the following steps:

[0102] When inspecting or repairing photovoltaic panels, personnel climb onto the panels to perform the inspection or repair. The personnel attach their safety belts to the inspection cable 230 and use the cable as a handrail.

[0103] The structure and operating principle of the present invention will be explained in further detail below:

[0104] This patented device comprises a cableway unit 200, a photovoltaic unit 300, and a maintenance unit 400. The cableway unit 200 consists of anchor points 210, support cables 220, and maintenance cables 230. The photovoltaic system 300 consists of photovoltaic panels 310, a combiner box 330, an inverter 340, a transformer 350, and conductors. The maintenance system 400 consists of a maintenance vehicle 410, its deployment and retraction device, and a tensioning device. Details are as follows:

[0105] I. Cableway Unit:

[0106] 1. Support Cable 220: The support cable 200 is a cableway device for supporting photovoltaic panels. Preferably, two cables are used as a group, and a row of photovoltaic panels is placed stably on the support cable 220. The two ends of the support cable are respectively attached to anchor points 210 set around the reservoir 100. The sag of each group of support cables is adjusted to be consistent so that the photovoltaic panels are placed stably on them. The support cable is provided with a stop cable end 221 at each end. The stop cable end 221 is a conical structure of zinc or other metal cast together with the steel wire of the maintenance cable end, used to prevent the maintenance cable from detaching.

[0107] 2. Inspection Cable 230: Inspection cable 230 is also suspended on anchor point 210, but its suspension position is higher than that of the support cable 220. It is suspended from the locking rope component 213 installed on the upper surface of the anchor point via a U-shaped buckle. The lower end of the locking rope component 213 passes through the anchor point and is reliably connected to the ground. The inspection cable serves both as personnel protection during maintenance and as a lightning protection rope. Regarding personnel protection during maintenance: it acts as a handrail when personnel climb onto the photovoltaic panels for maintenance; it can also be used to attach safety belts or safety ropes to ensure the safety of maintenance personnel. As a lightning protection rope, because the height of the inspection cable is higher than the support cable and the photovoltaic panel, in the event of a lightning strike, the lightning will first be conducted through the inspection cable and the cable loop to the grounding component, thus achieving the effect of lightning protection.

[0108] 3. Anchor Point 210: Anchor point 210 is a concrete pier structure reliably connected to platform 101 via reinforcing bars, etc. A conical groove 211 is opened in the middle of the anchor point. The diameter of the conical groove gradually decreases from the platform to the basin. A groove opening is provided at the top of the anchor point to allow the bearing cable 220 to enter and lock into the groove. After the bearing cable 220 enters the conical groove from the top of the anchor point, a stopper plate 212 with two conical halves is fitted over the outside of the bearing cable inside the conical groove. The stopper plate is lined with a first pad 215, which is a copper pad. Because the copper pad has a higher coefficient of friction, it will generate greater friction with the bearing cable 220 under compressive force. In addition, the diameter of the rear end of the stopper plate 212 is larger than the diameter of the tail end of the conical hole of the anchor point. This clamps the bearing cable 220 tightly, ensuring that the bearing cable 220 does not come out of the anchor point. The stop end of the bearing cable 220 serves as a safety measure in case of slippage.

[0109] II. Photovoltaic Units:

[0110] The photovoltaic panels 310 mounted on each pair of support cables 220 are connected by connecting plates 311. The photovoltaic panels on the left and right sides closest to the reservoir are reliably connected to the locking rings 214 on the anchor points by locking ropes 313 during operation. Multiple sets of wheel 320 are installed under each photovoltaic panel to allow the photovoltaic panel to be retrieved and released on the support cables 220 under the traction of the maintenance vehicle. Each set of wheel 320 consists of an upper clamping wheel 321 that is clamped above the support cable 220 and a lower clamping wheel 322 that is clamped below the support cable. The upper clamping wheel 321 and the lower clamping wheel 322 are reliably clamped to the support cable 220 by bolts connected by vertical plates 323 on both sides, ensuring that the photovoltaic panel will not derail from the support cable during installation or operation. The photovoltaic panels on each pair of support cables can be either one group or two groups. The purpose of having two groups is to accommodate situations where the support cable span is large, and the support cable 220 forms a U-shaped suspension due to gravity. The panels can be deployed and retrieved separately on the left and right platforms of the reservoir, allowing the photovoltaic panels 310 to meet at the bottom of the U-shape. This downhill deployment facilitates the operation. With varying numbers of photovoltaic panels, deploying and retrieving them via maintenance vehicles positioned on the left and right platforms of the reservoir is more efficient. If the photovoltaic panels on a pair of support cables are divided into two groups, the panels belonging to different groups that are adjacent in the middle of the reservoir are not connected, allowing for deployment and retrieval from both ends via maintenance vehicles. Each group of photovoltaic panels is connected in series via cables to an inverter, combiner box, and transformer installed on the platform. The current collected by the cables is first aggregated by the combiner box, then converted from DC to AC by the inverter, and finally stepped up by the transformer before being transmitted.

[0111] III. Maintenance System.

[0112] The installation and maintenance of photovoltaic panels 310 are both completed using maintenance vehicles 410 arranged on the platform. One or more maintenance vehicles 410 can be arranged on the platform 100 around the top of the reservoir 100. For example, if two maintenance vehicles are arranged on the platforms on both sides of the top of the reservoir, the left and right groups of photovoltaic panels on the same set of support cables 220 can be retrieved and installed separately. The maintenance vehicle 410 moves on the circular track 102 of the platform via track wheel set 411. The upper part is equipped with a winding and unwinding device 420 and a tensioning device, which are arranged on both sides of the maintenance vehicle 410. On one side of the maintenance vehicle 410, a winch and its matching communication box and electrical control box are arranged. The communication box and electrical control box are used to supply power and control the winch. The winch winds and unwinds the traction rope 421 on the drum under the control of the motor. After the traction rope is reliably connected to the photovoltaic panel, the photovoltaic panel is wound and unwinded. The tensioning device on the other side of the maintenance vehicle 410 is mainly used to tension or relax the maintenance cable 230 or the bearing cable 220.

[0113] The fixed bracket 430 and the movable bracket 440 of the tensioning device have the same internal structure, except that they can move or not. The mounting base 431 is divided into upper and lower chambers. The upper chamber forms a V-shaped groove, and the lower chamber houses a clamping cylinder 436. The clamping cylinder 436 has hinge points at its upper and lower parts. The lower hinge point is hinged to the bottom plate of the mounting base 431, and the upper hinge point is hinged to a two-part clamping block 433. The clamping block 433 is lined with a copper pad. The copper pad is relatively soft. The clamping block 433 increases the friction force after being pressed and connected with the support cable 220, ensuring that slippage does not occur. The upper part of the mounting base 431 is designed with a V-shaped groove. As the clamping cylinder 436 moves the two semi-cylindrical clamping blocks 433 downwards, the internal width of the mounting base 431 gradually decreases. This increases the encircling pressure exerted by the two clamping blocks 433 on the inspection cable or support cable, ensuring that the inspection cable or support cable does not slip during deployment and retraction. To ensure the stability of the clamping blocks 433, see [link to relevant documentation]. Figure 9 The clamping block 433 is limited to the groove within the slot 432.

[0114] The tensioning device includes a rope-supporting device 470, a fixed bracket 430, a movable bracket 440, a guide rail 450, and a step-changing cylinder 460. Each support cable 220 or maintenance cable 230 has a sufficient length reserved at the anchor point 210 on the side near the platform 101. When a retraction or extension operation is required, the reserved length of support cable or maintenance cable is first placed on the support plate 471 of the rope-supporting device 470, and the angle is adjusted by the support plate cylinder 472 for support. Then, it is placed on the fixed bracket 430 and the movable bracket 440 in sequence for retraction or extension operations. The fixed bracket 430 remains in a fixed position during the retraction or extension process, while the movable bracket 440 reciprocates along the guide rail 450 during the retraction or extension process by being pushed by the step-changing cylinder.

[0115] Anti-tipping device: The maintenance vehicle is under unilateral force in operation. To avoid tipping, an anti-tipping design is implemented. On the one hand, a counterweight box and counterweight are installed under the maintenance vehicle bracket. On the other hand, one or more locking cylinders 412 are installed on one side of the platform. When the maintenance vehicle is not in operation, the cylinder rod of the locking cylinder extends and inserts into the locking groove 103 or locking hole pre-dug on the platform to increase the anti-tipping force.

[0116] IV. Installation, dismantling, operation procedures and working principle.

[0117] Installation of the photovoltaic system in this patent:

[0118] Step 1: Preparations before installation. First, construct the track 102, anchor point 210, and locking groove 103 along the track of the maintenance vehicle. Then, assemble the maintenance vehicles on the left and right sides into place on the track.

[0119] Step 2: Install the support cable and maintenance cable. The installation methods for the support cable and maintenance cable are basically the same, both using a maintenance trolley. Drive the installed maintenance trolley to the location where the support cable or maintenance cable needs to be installed. Since locking slots are installed at intervals along the track corresponding to anchor points, once the maintenance trolley is in position, the locking cylinder can be activated to insert the piston rod into the locking slot and lock it. First, wind the thinner, lighter auxiliary cable onto the winch on one side of the maintenance trolley, and wind the support cable onto the winch on the other side of the maintenance trolley. Connect the auxiliary cable to the support cable, and then pull the support cable into position by driving the auxiliary cable winch. After placing the support cable into the anchor point, lock it with a stop plate, and then cut off any excess length of the support cable before casting or installing a stop end. Similarly, the maintenance cable is installed in the same way.

[0120] Step 3: Deployment of photovoltaic panels.

[0121] Two sets of photovoltaic panels are installed on the left and right sides of the same group of support cables 220. The photovoltaic panels are lowered from both ends of each group of support cables. Taking one side as an example: with the maintenance vehicle locked by the locking cylinder, the photovoltaic panels are connected and lowered one by one. First, the first photovoltaic panel with the plate wheel and cable installed is connected to the locking point of the anchor point via a locking rope. Then, the winch is started to pull the rope to connect the photovoltaic panel. The locking rope is then released from the photovoltaic panel, and the winch continues to release the pulling rope until there is space for the second photovoltaic panel near the anchor point on the support cable. The second photovoltaic panel is then connected to the locking point via a locking rope. The winch pulling rope is then finely adjusted so that the first and second photovoltaic panels are connected via a pin. This process is repeated until all photovoltaic panels on this side are installed. The installation of photovoltaic panels on the other side of the same group of support cables is carried out in the same way. One photovoltaic panel on the side closest to platform 101 is reliably connected to the locking ring 214 on the anchor point via a locking rope 313.

[0122] A set of photovoltaic panels is installed on the same group of support cables. That is, each group of support cables is used to lower and install photovoltaic panels only from one side. With the maintenance vehicle on one side locked by the locking cylinder, the photovoltaic panels are connected and lowered one by one. First, the first photovoltaic panel with the plate wheel and cable installed is connected to the locking point of the anchor point using a locking rope. Then, the winch is started to pull the rope to connect the photovoltaic panel near the anchor point. The auxiliary installation rope on the winch of the other maintenance vehicle is connected to the hinge point of the first photovoltaic panel near the reservoir side. The locking rope is then released from the connection to the photovoltaic panel near the anchor point, and the winch continues to release the pulling rope while the other winch retracts the auxiliary rope until there is enough space on the support cable near the anchor point for the second photovoltaic panel. After connecting the second photovoltaic panel to the locking point with the locking rope, the winch pulling rope is finely adjusted so that the first and second photovoltaic panels are connected by a pin. This process is repeated until all photovoltaic panels on this side are installed. The first and last photovoltaic panels are reliably connected to the locking rings 214 on the anchor points on both sides by locking ropes 313.

[0123] Step 4: Adjusting the sag of the support cable or maintenance cable. Place the section of the support cable anchor point near the platform side onto the support plate 471, the fixed bracket 430, and the movable bracket 440 in sequence. First, move the movable bracket 440 along the guide rail 450 to the position closest to the fixed bracket 430 under the drive of the step-changing cylinder 460. The clamping cylinders 436 on the fixed bracket 430 and the movable bracket 440 extend, and the two clamping blocks 433 move upward and open. Place the support cable 220 into the two clamping blocks 433. Then, the clamping cylinder 436 of the movable bracket 440 retracts, and the movable bracket 440 clamps and fixes the support cable 220. Insert the limiting pin 443 into the limiting hole 442 and one of the pin holes 451, thereby limiting and fixing the movable bracket 440 to the guide rail 450. Then, release the plug plate on the anchor point that is holding the support cable to prevent it from opening. If the movable retainer 440 slips after the stop plate is inserted, causing a hazard, the step-changing cylinder 460 extends its piston rod, and the movable retainer 440 moves along the guide rail 450, moving and tensioning the bearing cable 220 together. If the movable retainer 440 moves to the end of its stroke but the bearing cable 220 is not tensioned, the clamping cylinder 436 of the fixed retainer 430 retracts, and the fixed retainer 430 clamps and fixes the bearing cable 220. Then, the clamping cylinder 436 of the movable retainer 440 extends to release the bearing cable 220, and then the step-changing cylinder 460 retracts to move the movable retainer 440 closer to the fixed retainer 430. The above steps are repeated until the bearing cable 220 is tensioned in place. Then, the bearing cable 220 is connected and fixed to the anchor point 210 to complete the adjustment operation. The loosening of the bearing cable 220 is done by reversing the above steps.

[0124] Step 5: Inspection and maintenance of photovoltaic panels. For simple inspection and maintenance of photovoltaic panels 310, it is not necessary to retract the photovoltaic panels to the platform. Personnel only need to climb onto the photovoltaic panels for inspection or maintenance. To ensure the safety of maintenance personnel, they can attach safety belts to the maintenance cable. Maintenance personnel can also use the maintenance cable as a handrail to further ensure the convenience of the maintenance process.

[0125] Advantages of this patent

[0126] Novel and simple structure: This patent uses simple anchor points, bearing plates, and maintenance cables to realize the laying and reliable use of large-span flexible bracket photovoltaic panels. It has strong load-bearing capacity, large photovoltaic panel laying volume, and very high power generation efficiency.

[0127] Simple and convenient installation and removal: This patented multi-functional maintenance vehicle with innovative design can easily and reliably install or remove photovoltaic panels quickly and efficiently, avoiding the problems of poor economy, high site requirements and complicated procedures caused by using large-tonnage lifting machinery.

[0128] Convenient inspection and maintenance: In addition to using a maintenance vehicle for inspection, this patent also innovatively designs an inspection cable, allowing personnel to climb onto the photovoltaic panels for inspection and maintenance. This not only ensures the safety of personnel during inspection and maintenance, but also fully leverages the flexibility and efficiency of personnel operations, and also serves as a lightning protection function, making it highly practical.

[0129] As an alternative implementation, the locking rope component 213 and the locking ring 214 can be designed as a single unit to achieve the same function, which is also within the scope of this patent.

[0130] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A large amplitude reservoir type flexible photovoltaic system characterized by: The system includes a cableway unit, a photovoltaic unit, and a maintenance unit. The cableway unit includes anchor points and support cables. A platform is set around the perimeter of the reservoir. Multiple anchor points are installed on opposite sides of the platform, and support cables are installed on the corresponding anchor points on both sides. The photovoltaic unit includes photovoltaic panels. The bottom of the photovoltaic panels is clamped and installed on at least two support cables by multiple plate wheels. Both ends of the photovoltaic panels are connected to the anchor points by locking ropes. The maintenance unit includes multiple maintenance vehicles that move on the platform. The maintenance vehicles are equipped with a device for deploying and retracting the photovoltaic panels and a tensioning device for tensioning the support cables. The tensioning device includes a fixed bracket and a movable bracket, which are used to clamp the support plate cable. A guide rail is installed on the side of the fixed bracket away from the tank on the maintenance vehicle. A guide seat is installed at the bottom of the movable bracket. The movable bracket is slidably mounted on the guide rail through the guide seat. A step-changing cylinder is installed on the fixed bracket or on the maintenance vehicle. The step-changing cylinder is connected to the movable bracket. The step-changing cylinder extends and retracts to drive the movable bracket to move on the guide rail. The fixed and movable clamping seats have the same structure. The fixed clamping seat includes a mounting base, a clamping block, and a clamping cylinder. The mounting base is provided with a groove that is wider at the top and narrower at the bottom. The clamping block is a semi-ring structure, and there are two clamping blocks. The bottom ends of the two clamping blocks are hinged together by a hinge seat. The lower part of the groove of the mounting base is provided with a mounting cavity. The clamping cylinder is installed in the mounting cavity, and the telescopic end of the clamping cylinder is hinged to the hinge seat.

2. A large amplitude reservoir type flexible photovoltaic system according to claim 1, characterized in that, The anchor point is provided with a conical groove, the diameter of which decreases from the platform to the basin side. The top of the anchor point has a slot that connects to the conical groove. Two cone-shaped plug plates are installed inside the conical groove, and the two plug plates hold the support cable.

3. A large amplitude reservoir type flexible photovoltaic system according to claim 2, characterized in that, A first pad is installed on the inner side of the plug plate.

4. A large amplitude reservoir type flexible photovoltaic system according to claim 1, characterized in that, A locking ring is provided at the top of the anchor point, and the locking rope is connected and fixed to the locking ring.

5. A large amplitude reservoir type flexible photovoltaic system according to claim 2, wherein, Both ends of the bearing plate cable are provided with cable stop ends.

6. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The photovoltaic unit also includes a combiner box, an inverter, and a transformer. Each photovoltaic panel is electrically connected to the combiner box via cables, the combiner box is electrically connected to the inverter, and the inverter is electrically connected to the transformer.

7. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The photovoltaic panel group on the support cable consists of two groups. The adjacent ends of the two groups of photovoltaic panels are not connected, and the ends that are far apart from each other are connected to the anchor point by locking ropes.

8. A large amplitude reservoir type flexible photovoltaic system according to claim 1 or 7, characterized in that, The photovoltaic panel assembly includes multiple photovoltaic panels, each with a connecting plate at both ends, and adjacent photovoltaic panels are connected by the connecting plates.

9. A large amplitude reservoir type flexible photovoltaic system according to claim 8, characterized in that, The connecting plates between adjacent photovoltaic panels are hinged by pins.

10. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The plate wheel includes an upper clamping wheel, a lower clamping wheel, and a vertical plate. The upper clamping wheel and the lower clamping wheel are mounted between the two vertical plates and rotate vertically. The plate support cable is located between the upper clamping wheel and the lower clamping wheel.

11. A large amplitude reservoir type flexible photovoltaic system according to claim 1, characterized in that, The platform is equipped with a track, and the bottom of the maintenance vehicle is equipped with a track wheel set, which allows the maintenance vehicle to travel on the track.

12. A large amplitude reservoir type flexible photovoltaic system according to claim 1, characterized in that, The winding and unwinding device is a winch, which is installed on the top of the maintenance vehicle. A traction rope is installed on the winch, and when the traction rope is connected to the photovoltaic panel group, it is used to wind up and unwind the photovoltaic panel group.

13. A large amplitude reservoir type flexible photovoltaic system according to claim 12, characterized by, The maintenance vehicle is equipped with a support roller on the side near the tank, which is used to support the traction rope.

14. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, A second pad is installed on the inner side of the clamping block.

15. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The guide rail has multiple pin holes along its length, and the guide seat has a limiting hole. The limiting pin is inserted into the limiting hole and one of the pin holes to limit and fix the movable card seat to the guide rail.

16. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, A rope-supporting device is hinged to the side of the fixed mounting base near the storage basin on the maintenance vehicle. The rope-supporting device includes a support plate and a support plate cylinder. The support plate is hinged to the maintenance vehicle, and one end of the support plate cylinder is hinged to the maintenance vehicle, while the other end is hinged to the support plate.

17. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The maintenance vehicle is also equipped with a locking cylinder, and a locking groove is set on the platform at the position of the corresponding photovoltaic panel group. When the telescopic end of the locking cylinder extends, it is inserted into the locking groove.

18. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The maintenance vehicle is also equipped with a counterweight.

19. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The maintenance vehicle is also equipped with an electrical control cabinet and a communication box, which control the operation of the take-up and tensioning devices.

20. A large amplitude reservoir type flexible photovoltaic system according to claim 1, wherein, The anchor point is also equipped with a rope locking device, and maintenance cables are connected to the rope locking devices on both sides corresponding to the anchor points. The maintenance cables are located above the photovoltaic panel assembly.

21. A large amplitude reservoir type flexible photovoltaic system according to claim 20, wherein, The lower end of the locking rope extends into the ground after passing through the anchor point.

22. An installation method for implementing the large-amplitude reservoir-type flexible photovoltaic system as described in claim 1, the installation method comprising the following steps: S1. Install the support cable; drive the two maintenance vehicles to the positions where the support cable needs to be installed, first install the auxiliary cable onto the retraction device of one maintenance vehicle, then install the support cable onto the retraction device of the other maintenance vehicle, connect the auxiliary cable to the support cable, and pull the support cable across the tank by pulling the auxiliary cable through the retraction device. After pulling it into place, remove the auxiliary cable and connect and fix both ends of the support cable to the anchor points on both sides respectively. S2. The shunting of photovoltaic panels; The shunting method of photovoltaic panels includes installing two sets of photovoltaic panels on the left and right sides respectively on the support cable of the same group, and installing one set of photovoltaic panels on the support cable of the same group; The steps for installing the left and right sets of photovoltaic panels on the same set of support plates are as follows: When installing one set of photovoltaic panels, first lock the maintenance vehicle to one end of a set of support cables. Then, connect the first photovoltaic panel with the wheel and cable installed to the anchor point using the locking rope. Install the photovoltaic panel onto the set of support cables using the wheel. Then, connect the photovoltaic panel to the anchor point using the pull rope on the take-up and release device, and release the locking rope to the photovoltaic panel. Release the pull rope using the take-up and release device until there is space for the second photovoltaic panel near the anchor point on the support cable. Connect the second photovoltaic panel to the anchor point using the locking rope, and then install the second photovoltaic panel onto this set of support cables using the wheel. Then, fine-tune the take-up and release pull rope using the take-up and release device to connect the first and second photovoltaic panels. Continue in this manner until all photovoltaic panels in this set are installed. The installation of photovoltaic panels on the other side of the same set of support cables is carried out in the same way. After installation, connect and fix the photovoltaic panel near the anchor point using the locking rope. The steps for installing a set of photovoltaic panels on the same group of support cables are as follows: Lock a maintenance vehicle to one end of a set of support cables. Then, connect the first photovoltaic panel, equipped with a plate wheel and cable, to the anchor point via a locking rope. Install the photovoltaic panel onto the set of support cables via the plate wheel. Connect the photovoltaic panel to the pull rope on the retraction device. Connect the pull rope of the retraction device on the maintenance vehicle at the other end of the support cable to the side of the first photovoltaic panel near the reservoir. Then, release the connection between the locking rope and the photovoltaic panel. The retraction device on one end of the maintenance vehicle releases the pull rope, and the retraction device on the other end of the maintenance vehicle retracts the pull rope until there is space for the installation of the second photovoltaic panel on the support cable near the anchor point. After connecting the second photovoltaic panel to the locking rope, fine-tune the retraction pull rope through the retraction device to connect the first and second photovoltaic panels. Repeat this process until all photovoltaic panels on this side are installed. After installation, connect and fix the photovoltaic panels at both ends to the anchor points on both sides via locking ropes. S3. Adjustment of the sag of the bearing cable; Lock a maintenance vehicle at one end of a set of bearing cables. Place the end of the bearing cable on the platform onto the fixed bracket and the movable bracket in sequence. First, move the movable bracket along the guide rail to the position closest to the fixed bracket under the drive of the step-changing cylinder. The clamping cylinders on the fixed bracket and the movable bracket extend, and the two clamping blocks move upward and open, allowing the bearing cable to be placed into the two clamping blocks. Then, the clamping cylinder of the movable bracket retracts, and the movable bracket clamps and fixes the bearing cable. Finally, the piston of the step-changing cylinder extends. The lever and movable bracket move along the guide rail, moving and tensioning the bearing cable together. If the bearing cable is not tensioned when the movable bracket reaches the end of its stroke, the clamping cylinder of the fixed bracket retracts, and the fixed bracket clamps and fixes the bearing cable. Then, the clamping cylinder of the movable bracket extends to release the bearing cable, and the step-changing cylinder retracts to move the movable bracket closer to the fixed bracket. The above steps are repeated until the bearing cable is tensioned in place. Then, the bearing cable is connected and fixed to the anchor point to complete the adjustment operation. The loosening of the bearing cable is done by reversing the above steps.

23. A maintenance method for implementing the large-amplitude reservoir-type flexible photovoltaic system as described in claim 20, the maintenance method comprising the following steps: When inspecting or repairing photovoltaic panels, personnel climb onto the panels to perform the inspection or repair. The personnel attach safety belts to the inspection ropes, which also serve as handrails.

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