Wind power tower cylinder outer hanging type photovoltaic power generation method and wind-solar cooperative power generation system

Abstract

The application discloses a wind-power tower-cylinder-attached photovoltaic power generation method and a wind-solar cooperative power generation system, and the method comprises the following steps: installing a tower-cylinder mounting interface which can be detachably embraced and fastened on the outer circumferential surface of a wind-power tower cylinder; detachably connecting an arc-shaped photovoltaic panel with the curvature matched with the outer surface of the tower cylinder through the first matching part on the back of the arc-shaped photovoltaic panel and the second matching part on the tower-cylinder mounting interface; and converting the direct current generated by the multiple arc-shaped photovoltaic panels into alternating current through a power conversion unit, and then merging into the existing grid-connected line of the wind-power generation system through a grid-connected interface. The application makes full use of the idle space of the tower cylinder, does not need to occupy additional land, realizes stable and convenient installation of the photovoltaic components through the adaptive design of the arc-shaped photovoltaic panel and the special interface, and effectively improves the comprehensive power generation capacity and energy utilization efficiency of the wind-power farm.

Description

Technical Field

[0001] This invention relates to the field of new energy power generation technology, specifically a method for externally mounted photovoltaic power generation on a wind power tower and a wind-solar synergistic power generation system. Background Technology

[0002] As the global energy structure shifts towards cleaner and lower-carbon energy, wind power and photovoltaic power generation, as two mainstream renewable energy technologies, have been widely promoted and applied. However, both technologies have certain limitations when used independently.

[0003] Onshore wind farms typically require substantial land resources, but their core power generation equipment consists solely of wind turbine generators. The wind turbine towers, which serve as supporting structures, often leave a large amount of surface space and surrounding area unused, resulting in a waste of space resources. On the other hand, conventional photovoltaic (PV) power systems are primarily deployed using ground-mounted racks, which also require significant land. Deploying ground-mounted PV arrays separately within a wind farm would not only further increase land costs but could also create spatial conflicts with wind turbine deployment and maintenance access, impacting the normal operation of the wind turbine generators.

[0004] To address the aforementioned issues, some technicians have attempted to install photovoltaic panels onto the surface of wind turbine towers. For example, patent document CN204316403U discloses a wind turbine tower device with photovoltaic panels. A support frame is fitted around the outer perimeter of the tower, and the photovoltaic panels are mounted on the support frame via a rotating device. A rotation drive device and a photosensitive element are also included. A control motor drives the photovoltaic panels to rotate around the tower to receive sunlight. Patent document CN215222058U discloses a photovoltaic power generation device installed on a wind turbine tower, employing components such as a ring slide rail, a track pulley system, and a drive motor, allowing the photovoltaic panels to rotate around the tower and adjust their tilt angle via an electric telescopic rod. Patent document CN117167200A discloses a device and method for generating electricity using photovoltaic panels installed on a wind turbine tower. A biomimetic sunflower mechanism is installed in layers on the outer wall of the tower, including a rotating base, a drive mechanism, a photosensitive device, and multiple connecting rods. A control system drives the photovoltaic panels to rotate around the tower and adjust their angle.

[0005] However, the aforementioned existing technologies all have significant drawbacks: First, they are structurally complex, generally employing numerous moving parts such as ring rails, rotating bases, electric telescopic rods, drive motors, and control systems. Their long-term reliability in high-wind-speed, harsh outdoor environments at the top of the tower is difficult to guarantee, resulting in high failure rates and high manufacturing and maintenance costs. Second, the installation process is cumbersome. All the above solutions require multi-point fixing on the tower surface, track installation, or complex debugging, leading to a large amount of high-altitude work, low construction efficiency, and high safety risks. Third, existing solutions generally do not fully consider the impact of photovoltaic panel installation on the stress state of the tower structure, especially its impact on wind load characteristics. Wind power towers are tall, flexible structures sensitive to wind loads; adding photovoltaic equipment may alter the wind flow characteristics around the tower, affecting structural safety. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a wind power generation tower external photovoltaic power generation method and system that is simple in structure, convenient for high-altitude installation, has little impact on the tower structure, and is detachable without damaging the tower, so as to solve the technical problems of existing tower photovoltaic schemes that are complex in structure, have low efficiency in high-altitude installation, and do not fully consider the impact on the wind load on the tower.

[0007] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a method for externally mounted photovoltaic power generation on a wind power tower, comprising the following steps: S1: Install at least one tower mounting interface that can be detachably wrapped around and fastened to the outer circumference of the wind power generation tower. S2: Provides a photovoltaic panel that is processed into an arc-shaped photovoltaic panel, the curvature of which matches the curvature of the outer surface of the wind power tower; S3: The curved photovoltaic panel is installed to the tower installation interface through a connecting mechanism. The connecting mechanism includes a first mating part disposed on the curved photovoltaic panel and a second mating part disposed on the tower installation interface. The first mating part and the second mating part are detachably connected by means of suspension or snap-fit. S4: Connect the output ends of multiple curved photovoltaic panels installed on the tower to the combiner box for collection, and then input the collected DC power to the inverter to convert it into AC power; S5: Connect the AC power output from the inverter to the existing grid connection line of the wind power generation system to which the wind turbine tower belongs.

[0008] Preferably, the tower mounting interface is a circular bracket, which is composed of two symmetrical and separable arc-shaped parts. When the arc-shaped parts are closed, they can surround and fasten to the cylindrical outer surface of the wind power generation tower.

[0009] Preferably, the circular bracket is composed of two semi-circular parts, one end of which is connected by a simple hinge, and the other end is closed and fastened by a flange with bolt holes.

[0010] Preferably, the first mating part is a hook disposed on the back of the arc-shaped photovoltaic panel, and the second mating part is a hook ring disposed on the tower mounting interface, and the connection is achieved by suspending the hook on the hook ring.

[0011] Preferably, before step S1, the method further includes: planning the deployment area of ​​the curved photovoltaic panels, with the planning step prioritizing the sun-facing side of the wind power tower as the deployment area.

[0012] The present invention also provides a wind-solar co-generation system, including a wind power generation tower, and further comprising: At least one tower mounting interface, which is detachably wrapped around and secured to the outer periphery of the wind turbine tower; At least one curved photovoltaic panel whose curvature matches the curvature of the outer surface of the wind turbine tower; A connection mechanism is used to install an arc-shaped photovoltaic panel to a tower mounting interface. The connection mechanism includes a first mating part disposed on the arc-shaped photovoltaic panel and a second mating part disposed on the tower mounting interface. The first mating part and the second mating part are detachably connected. The power conversion unit, electrically connected to the curved photovoltaic panel, is used to collect the direct current generated by the curved photovoltaic panel and convert it into alternating current. The grid connection interface is used to connect the AC power output from the power conversion unit to the existing grid connection line of the wind power generation system to which the wind turbine tower belongs.

[0013] Preferably, a rubber pad is provided on the inner side of the tower installation interface.

[0014] Preferably, a power monitoring module and protection device are also installed at the grid connection interface.

[0015] Preferably, the surface of the curved photovoltaic panel is covered with a protective layer.

[0016] The wind power tower external photovoltaic power generation method and wind-solar synergistic power generation system provided by the present invention have the following beneficial effects by adopting the above method and structure: (1) By integrating the photovoltaic system onto the idle surface of the wind power tower, the existing space resources are effectively utilized. There is no need to acquire additional land for the photovoltaic power generation system, which fundamentally solves the problem of photovoltaic power generation and wind power generation competing for land resources, and significantly improves the land utilization efficiency and economy of wind power farms. (2) The curved photovoltaic panel is perfectly matched with the curvature of the tower, and the overall aerodynamic shape is smooth. It does not produce obvious wind-blocking surfaces, thus avoiding a significant increase in the wind resistance coefficient. Furthermore, the photovoltaic panel is installed on the sun-facing side of the tower, making full use of the tower body as a natural front-row shield. The aerodynamic shielding effect allows the photovoltaic panel to be placed within the airflow protection area of ​​the tower, and the direct wind pressure it experiences is much lower than that of independently installed photovoltaic arrays. This solves the problem of the impact of additional photovoltaic equipment on tower safety, which has been neglected in this field for a long time. (3) In response to the pain points of the existing tower photovoltaic schemes being complex in structure and cumbersome in installation procedures, this scheme adopts a minimalist design that combines the tower installation interface with the hanging photovoltaic panel. The circular bracket adopts a simple hinge and flange opening and closing structure, and the photovoltaic panel adopts a hook-suspended installation, which simplifies the high-altitude operation to two core actions: gripping the bracket and hanging the photovoltaic panel. There is no need to carry out complex track installation, multi-point bolt fixing or electrical drive debugging on the tower surface, which greatly shortens the high-altitude operation time, reduces construction safety risks, and shortens the construction cycle. (4) The invention abandons the complex electromechanical scheme that relies on a large number of moving parts such as slide rails, motors, electric push rods and control systems in the existing technology. It adopts a purely mechanical fixed structure with very few moving parts. In harsh outdoor environments such as high wind speed, strong sunlight and large temperature difference at the top of the tower, the long-term reliability of the invention is significantly better than that of complex electromechanical schemes. It has a low failure rate and a long service life. At the same time, the modular and assembled design makes the later inspection and maintenance extremely convenient. Each photovoltaic panel can be disassembled and replaced independently, which greatly reduces the operation and maintenance cost of the whole life cycle.

[0017] (5) The photovoltaic power generation was seamlessly integrated into the existing grid-connected line of the wind power generation system, realizing the complementary power generation of wind and solar energy, smoothing the power output curve, improving the total power generation and energy utilization efficiency of the power plant, thereby improving the overall economic benefits of the project. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the tower installation interface structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the structure of the tower installation interface of the present invention in its unfolded state.

[0021] Figure 4 This is a top view schematic diagram of the arc-shaped photovoltaic panel structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the structure of the back of the arc-shaped photovoltaic panel of the present invention.

[0023] In the diagram: wind power generation tower 100, tower mounting interface 10, circular bracket 11, arc-shaped component 111, semi-circular component 112, simple support hinge 113, flange 114, rubber pad 12, arc-shaped photovoltaic panel 20, connecting mechanism 30, first mating part 31, hook 311, second mating part 32, hook ring 321, power conversion unit 40, combiner box 41, inverter 42, grid connection line 50, grid connection interface 60, power monitoring module 61, protection device 62. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] This invention provides a technical solution for effectively utilizing existing wind farm facilities to improve comprehensive energy output without occupying additional land resources. The core of this solution is to transform the idle exterior space of wind turbine towers, especially the sunny side with excellent sunlight conditions, into a carrier for photovoltaic power generation. Through structural adaptation, convenient installation, and electrical coordination design, deep integration of wind power generation and photovoltaic power generation is achieved.

[0026] like Figure 1 As shown, multiple curved photovoltaic panels 20 are neatly installed on the outer circumference of the wind power tower 100, forming a collaborative power generation system, thereby achieving complementary power generation of two renewable energy sources on a single facility.

[0027] Example 1: This invention provides a method for externally mounted photovoltaic power generation on a wind turbine tower. The first step (S1) of this method is to install at least one tower mounting interface 10 on the outer circumferential surface of the wind turbine tower 100. This tower mounting interface 10 is a key load-bearing and connecting component, designed to detachably wrap around and securely fasten to the outer circumferential surface of the tower 100, providing a stable and reliable foundation platform for the subsequent installation of photovoltaic panels. This detachable design ensures installation flexibility, facilitates subsequent maintenance, repair, or replacement, and avoids permanent damage to the main structure of the tower 100.

[0028] The second step (S2) of the method is to process a specially processed photovoltaic panel, namely an arc-shaped photovoltaic panel 20. Unlike traditional flat photovoltaic panels, the curvature of the arc-shaped photovoltaic panel 20 is precisely designed and processed to match the curvature of the outer surface of the wind turbine tower 100. This curvature matching design brings multiple technical advantages: First, it allows the photovoltaic panel to fit tightly against the tower surface, reducing the gap between the panel and the tower, thereby significantly reducing the uplift force generated by wind load on the photovoltaic panel and improving the wind resistance and structural stability of the entire system; second, the tight fit also makes the overall appearance more harmonious and aesthetically pleasing.

[0029] The third step (S3) of the method involves installing the curved photovoltaic panel 20 onto the tower mounting interface 10 using a connecting mechanism 30. This connecting mechanism 30 comprises two mating parts: a first mating part 31 on the curved photovoltaic panel 20 and a second mating part 32 on the tower mounting interface 10. These two mating parts are detachably connected by suspension or snap-fit. This connection method simplifies the complexity of high-altitude operations; installers do not need to perform complex bolt tightening operations, but only need to align the first mating part 31 with the second mating part 32 and complete the suspension or snap-fit ​​action, greatly improving installation efficiency and operational safety.

[0030] The fourth step (S4) of the method is to perform electrical connections and power conversion. The output ends of multiple curved photovoltaic panels 20 installed on the tower 100 are connected to one or more power conversion units 40 via cables. Specifically, as follows... Figure 1 As shown, multiple curved photovoltaic panels 20 are first connected to a combiner box 41 via cables for DC power collection. This is intended to aggregate the DC power from multiple photovoltaic strings for unified management and transmission. Subsequently, the collected DC power is input to an inverter 42, which efficiently converts the unstable DC power into AC power that conforms to grid standards.

[0031] The fifth step (S5) of the method is to achieve grid connection of the electrical energy. The AC power output from the inverter 42 is connected to the existing grid connection line 50 of the wind power generation system to which the wind turbine tower 100 belongs through the grid connection interface 60. This step makes full use of the existing power infrastructure of the wind farm, eliminating the need to build a separate booster station and grid connection line for the photovoltaic part, thereby significantly reducing the initial investment cost of the system. In this way, the electricity generated by photovoltaic power generation and the electricity generated by wind power generation are jointly fed into the grid, realizing wind and solar synergistic power generation.

[0032] Example 2: As a preferred implementation scheme, such as Figure 2 and Figure 3 As shown, the tower mounting interface 10 can specifically be a circular bracket 11. This circular bracket 11 consists of at least two separable arc-shaped components 111. During installation, these arc-shaped components 111 can be separated and wrapped around the wind turbine tower 100 from different directions. They can then be reassembled and secured, ultimately closing into a complete annular structure that firmly encircles the cylindrical outer surface of the tower 100. This modular design solves the problem of how to fit a closed annular structure onto a tall tower, making the installation process practically feasible.

[0033] Based on the above scheme, to further simplify the installation operation, the circular bracket 11 can be composed of two semi-circular parts 112. For example... Figure 3As shown, one end of the two semicircular components 112 is connected by a simple hinge 113, which allows the two semicircular components 112 to open and close like a clamshell. The other end is provided with a flange 114 with bolt holes for fastening the connection. During installation, the operator simply places the opened circular bracket 11 horizontally onto the predetermined position of the tower 100, then closes the bracket and tightens the flanges 114 at both ends with bolts. This "hinge opening and closing, flange locking" structure makes the high-altitude installation process faster, safer, and more precise.

[0034] To achieve the aforementioned convenient installation, the specific structure of the connecting mechanism 30 has also been optimized. For example... Figure 2 and Figure 5 As shown, the first mating part 31 can be at least one hook 311 provided on the back of the curved photovoltaic panel 20, while the second mating part 32 can be a corresponding hook ring 321 provided on the tower mounting interface 10. When installing the curved photovoltaic panel 20, the operator only needs to hoist the photovoltaic panel into place, allowing the hook 311 on its back to fall from top to bottom into the hook ring 321 on the tower mounting interface 10 to complete the mechanical connection. This suspended installation method simplifies the operation and greatly reduces the difficulty of precise alignment and fastening at high altitudes.

[0035] To maximize the efficiency of photovoltaic power generation, an important planning step is included before installing the tower mounting interface 100. This step requires a comprehensive analysis of the orientation of the wind turbine tower 100, the surrounding environment (such as shading from other wind turbines or terrain), and local solar radiation patterns, prioritizing the sun-facing side of the tower as the installation area for the curved photovoltaic panels 20. The sun-facing side refers to the area receiving the longest sunshine hours and the highest light intensity throughout the day. Through scientific planning, concentrating limited photovoltaic panel resources in the optimal location ensures the highest area power generation efficiency with the same investment, thereby improving the economic benefits of the entire system.

[0036] Example 3: This invention also provides a wind-solar co-generation system, which is a specific embodiment of the above-mentioned method. For example... Figures 1 to 5 As shown, in addition to the conventional wind turbine tower 100, the core innovation of this system lies in the addition of a complete set of externally mounted photovoltaic power generation modules. This system includes: At least one tower mounting interface 10 is detachably wrapped around and fastened to the outer peripheral surface of the wind power tower 100; at least one curved photovoltaic panel 20 has a curvature that matches the curvature of the outer surface of the tower 100. A connecting mechanism 30 is used to install the curved photovoltaic panel 20 to the tower mounting interface 10; A power conversion unit 40 is used to process the electrical energy generated by the photovoltaic panel; It also includes a grid connection interface 60 for injecting photovoltaic power into the existing power grid. These components work together to form a structurally integrated and functionally complementary wind-solar integrated power generation unit.

[0037] To ensure a secure and fastened connection while protecting the tower, a rubber pad 12 is provided on the inner side of the tower mounting interface 10, that is, the side that contacts the surface of the wind turbine tower 100. For example... Figure 3 As shown, these rubber pads 12 serve a dual purpose: on the one hand, as a buffer layer, they can effectively prevent the metal tower installation interface 10 from scratching or damaging the anti-corrosion coating on the tower surface during installation and long-term use, thus protecting the structural integrity of the tower; on the other hand, the rubber material has a high coefficient of friction and elasticity, which can provide greater friction when tightening, preventing the interface from sliding up and down along the tower, and can absorb some of the energy generated by wind-induced vibration, thus enhancing the stability and reliability of the connection.

[0038] To ensure the safe and stable integration of photovoltaic power into the existing power grid and to effectively monitor system performance, a power monitoring module 61 and a protection device 62 are specially installed at the grid connection interface 60. For example... Figure 1 As shown, the power monitoring module 61 is responsible for real-time collection and recording of key data such as power generation, voltage, current, and power output of the photovoltaic system, providing a basis for system performance evaluation and fault diagnosis. The protection device 62 includes multiple functions such as overload protection, short-circuit protection, and reverse current protection. It can quickly disconnect the connection when abnormal operating conditions are detected in the power grid or the photovoltaic system itself, thereby protecting the wind power generation system and photovoltaic equipment from damage and ensuring the safe operation of the entire wind-solar co-generation system.

[0039] In a preferred combination, the method and system integrate multiple optimized features to achieve optimal installation convenience and structural reliability. Specifically, the tower mounting interface 10 adopts a circular support structure 11 composed of two semi-circular parts 112 connected by a simply supported hinge 113 and a flange 114. Simultaneously, the connecting mechanism 30 employs a suspension connection method using hooks 311 and rings 321. This combination of structural features forms a complete "quick-fitting, easy-suspension" installation process, minimizing the risks and complexity of high-altitude operations, and is key to achieving efficient and low-cost deployment of the technical solution of this invention.

[0040] Example 4: The technical solution of the present invention will be illustrated more clearly below with reference to a specific embodiment: This embodiment provides a method for externally mounted photovoltaic power generation on a wind turbine tower. The method aims to generate photovoltaic power using the exterior of the wind turbine tower 100. First, step S1 is performed by installing one or more tower mounting interfaces 10 on the outer circumferential surface of the tower 100. These interfaces are designed to encircle and securely fasten to the tower, providing a stable base for the photovoltaic panels.

[0041] Next, step S2 is implemented, providing a special curved photovoltaic panel 20. The curvature of the curved photovoltaic panel 20 is customized to perfectly fit the outer surface contour of the tower 100. This design not only provides structural stability but also effectively reduces wind resistance.

[0042] Then, step S3 is performed, in which the curved photovoltaic panel 20 is installed onto the tower mounting interface 10 via a connecting mechanism 30. This connecting mechanism 30 employs a detachable mating method, for example, by interlocking or suspending a first mating part 31 on the photovoltaic panel and a second mating part 32 on the interface, thereby achieving rapid installation.

[0043] Subsequently, step S4 is performed to electrically connect all the installed curved photovoltaic panels 20. Their DC output terminals are collected to the power conversion unit 40, which typically includes a combiner box 41 and an inverter 42. The DC power generated by the photovoltaic panels is collected in the combiner box 41 and then sent to the inverter 42 to be converted into AC power.

[0044] Finally, in step S5, the AC power output from inverter 42 is connected to the existing grid connection line 50 of the wind power generation system. In this way, the photovoltaic power generation system is seamlessly integrated into the existing power facilities of the wind farm, realizing the coordinated output of wind and solar energy. The whole process does not require additional land occupation or expensive grid connection facilities.

[0045] Based on the above embodiments, the technical solution of the present invention can be further specified. For example, the tower mounting interface 10 can adopt a more specific and optimized structure. Figure 2 and Figure 3 As shown, the tower mounting interface 10 can be a circular bracket 11, which consists of two semi-circular parts 112. One end of these two semi-circular parts 112 is connected by a simple hinge 113, allowing the entire bracket to open and close like a book; the other end is provided with a flange 114, which is fastened with bolts. During installation, workers can easily place the opened bracket onto the tower 100 at the designated height, then close it and tighten the bolts on the flange 114 to complete the installation of one bracket. The entire process requires no complicated lifting and positioning equipment, making it extremely convenient.

[0046] Similarly, the connecting mechanism 30 can also adopt a more efficient and safer design, such as... Figure 2 and Figure 5As shown, a hook 311 serving as a first mating part 31 is provided on the back of the curved photovoltaic panel 20, and correspondingly, a hook ring 321 serving as a second mating part 32 is provided on the circular bracket 11. When installing the photovoltaic panel, the worker only needs to hoist the photovoltaic panel to the installation position, align the hook 311 on the back of the panel with the hook ring 321 on the bracket. This top-down suspension action can be initially fixed by gravity, and only minor adjustments and final locking are required afterward. Compared with the laborious bolt tightening operation at height, this greatly simplifies the process, shortens the operation time, and significantly improves safety.

[0047] In addition, before any installation work can be carried out, the solar resources at the location of the tower 100 need to be surveyed and analyzed. By determining the sun's trajectory throughout the year, the area on the tower surface with the most abundant sunlight, i.e., the sun-facing side, can be accurately identified. Then, the deployment area of ​​the curved photovoltaic panels 20 is prioritized on these sun-facing sides.

[0048] To further improve the system's reliability and service life, a layer of rubber pads 12 can be added to the inner side of the circular support 11, i.e., the surface in contact with the tower 100. These rubber pads 12 will elastically deform when the support is tightened, which on the one hand increases the friction with the tower surface, preventing the support from sliding, and on the other hand prevents the rigid metal support from directly contacting and damaging the tower's anti-corrosion coating. Meanwhile, in terms of the electrical system, the grid connection interface 60 should integrate a power monitoring module 61 and a complete protection device 62. The monitoring module can provide real-time feedback on power generation performance, while the protection device can respond instantly in the event of an electrical fault, ensuring that the photovoltaic system does not impact the stability of the wind power system or even the entire power grid.

[0049] Example 5: The following section describes a complete application case of a wind-solar co-generation system with specific parameters. This case study focuses on the retrofitting of a wind turbine in a 1.5MW onshore wind farm. The wind turbine's 100-meter tower is a typical cylindrical steel structure with a diameter of 4.2 meters and a height of 80 meters, and its surface is coated with an anti-corrosion coating.

[0050] First, preliminary surveys and planning were conducted. Based on local meteorological data and solar radiation trajectory analysis, the south-facing and east-west extending areas of the tower were determined to be the optimal sun-facing sides. The total planned area of ​​externally mounted photovoltaic panels on a single tower is approximately 100 square meters, and the deployment area is selected in sections that will not affect the wind turbine operation and maintenance access and tower interfaces.

[0051] Next, component fabrication is carried out. Based on the tower's 4.2-meter diameter, the corresponding curvature is calculated, and a custom-made curved photovoltaic panel 20 is manufactured. This photovoltaic panel uses high-efficiency monocrystalline silicon cells and flexible encapsulation technology, with a single panel size of 1.2 meters × 2.0 meters. The surface is covered with a tempered glass protective layer to enhance weather resistance. Simultaneously, the tower mounting interface 10 is fabricated, specifically a circular bracket 11 made of 6061 aluminum alloy. This bracket consists of two semi-circular parts 112 connected by a simple hinge 113 and a flange 114, with rubber pads 12 attached to the inner side. Hooks 321 for installing the photovoltaic panel are pre-installed on the bracket.

[0052] The installation phase begins. A high-altitude work platform is used to transport the circular support brackets 11 to the predetermined height of the tower 100. The brackets are opened, wrapped around the tower, and then closed, with the flanges 114 secured by bolts. Multiple circular support brackets 11 are installed sequentially along the vertical direction of the tower at 2.0-meter intervals. After the support brackets are installed, the curved photovoltaic panels 20 are installed. The photovoltaic panels are hoisted into place, aligning the inverted U-shaped hooks 311 on their backs (i.e., hooks 311 in this design) with the hook rings 321 on the circular support brackets 11. The installation sequence proceeds from bottom to top, layer by layer, with a 5-centimeter gap between adjacent photovoltaic panels for heat dissipation and drainage.

[0053] Finally, wiring and grid connection are performed. The output cables of all the curved photovoltaic panels 20 are laid along the support and tower surfaces and connected to a combiner box 41 installed at a height of 60 meters on the tower. The output of the combiner box 41 is then connected to a 50kW inverter 42. The inverter 42 converts the DC power to 380V AC power and connects it to the wind farm's existing grid connection line 50 via the grid connection interface 60. The grid connection interface 60 is equipped with a power monitoring module 61 and protection devices 62, including anti-reverse current protection. After system debugging and confirmation that the power quality and grid connection stability are qualified, the system is officially put into operation.

[0054] Upon completion of this embodiment, the rated power of the photovoltaic system mounted on a single tower is approximately 15kW, and based on local sunlight conditions, the annual power generation is estimated to reach approximately 18,000 kWh. This electricity, when integrated into the existing wind power system, increases the total annual power generation of a single wind turbine by approximately 5%. The entire retrofit process fully utilizes the unused space of the tower, without occupying any additional land, significantly improving energy efficiency and the overall economic benefits of the project. Subsequent operation and maintenance are also relatively simple, requiring only monthly cleaning of the photovoltaic panel surface and regular checks of the tightness of connections and the operational status of electrical equipment.

Claims

1. A method for externally mounted photovoltaic power generation on a wind power tower, characterized in that... Includes the following steps: S1. At least one tower installation interface (10) is installed on the outer peripheral surface of the wind power generation tower (100) and is detachable and encircles and fastened to the outer peripheral surface of the tower (100). S2. Process the arc-shaped photovoltaic panel (20), the curvature of the arc-shaped photovoltaic panel (20) is matched with the curvature of the outer surface of the wind power generation tower (100); S3. The curved photovoltaic panel (20) is installed to the tower installation interface (10) by means of the connecting mechanism (30). The connecting mechanism (30) includes a first mating part (31) provided on the curved photovoltaic panel (20) and a second mating part (32) provided on the tower installation interface (10). The first mating part (31) and the second mating part (32) are detachably connected by means of suspension or snap-fit. S4. Connect the power output terminals of multiple arc-shaped photovoltaic panels (20) installed on the tower (100) to the combiner box (41) for combining, and then input the combined DC power to the inverter (42) to convert it into AC power; S5. The AC power output from the inverter (42) is connected to the existing grid connection line (50) of the wind power generation system to which the wind power generation tower (100) belongs.

2. The method for externally mounted photovoltaic power generation on a wind power tower according to claim 1, characterized in that: The tower installation interface (10) is a circular bracket (11), which is composed of at least two separable arc-shaped parts (111). After the arc-shaped parts (111) are closed, they can surround and fasten to the cylindrical outer surface of the wind power generation tower (100).

3. The method for externally mounted photovoltaic power generation on a wind power tower according to claim 2, characterized in that: The circular bracket (11) is composed of two semi-circular parts (112). One end of the two semi-circular parts (112) is connected by a simple hinge (113), and the other end is fastened by a flange (114) with bolt holes.

4. The method for externally mounted photovoltaic power generation on a wind power tower according to claim 1, characterized in that: The first mating part (31) is a hook (311) set on the back of the arc-shaped photovoltaic panel (20), and the second mating part (32) is a hook (321) set on the tower installation interface (10). The hook (311) is suspended on the hook (321) to achieve connection.

5. A method for externally mounted photovoltaic power generation on a wind power tower according to claim 1, characterized in that: Before step S1, the method further includes: planning the deployment area of ​​the arc-shaped photovoltaic panel (20), and the planning step selects the sun-facing side of the wind power tower (100) as the deployment area.

6. A wind-solar co-generation system, comprising a wind power generation tower (100), characterized in that: It also includes at least one tower mounting interface (10), at least one curved photovoltaic panel (20), a connection mechanism (30), a power conversion unit (40) and a grid connection interface (60). The tower mounting interface (10) is detachably wrapped around and fastened to the outer circumference of the wind power generation tower (100); The curvature of the arc-shaped photovoltaic panel (20) matches the curvature of the outer surface of the wind power tower (100); The connecting mechanism (30) is used to install the arc-shaped photovoltaic panel (20) to the tower mounting interface (10). The connecting mechanism (30) includes a first mating part (31) disposed on the arc-shaped photovoltaic panel (20) and a second mating part (32) disposed on the tower mounting interface (10). The first mating part (31) and the second mating part (32) are detachably connected. The power conversion unit (40) is electrically connected to the arc-shaped photovoltaic panel (20) and is used to convert the direct current generated by the arc-shaped photovoltaic panel (20) into alternating current. The grid connection interface (60) is used to connect the AC power output from the power conversion unit (40) to the existing grid connection line (50) of the wind power generation system to which the wind power generation tower (100) belongs.

7. A wind-solar co-generation system according to claim 6, characterized in that: A rubber pad (12) is provided on the inner side of the tower installation interface (10).

8. A wind-solar co-generation system according to claim 6, characterized in that: The grid connection interface (60) is also equipped with an energy monitoring module (61) and a protection device (62).

9. A wind-solar co-generation system according to claim 6, characterized in that: The tower mounting interface (10) is a circular bracket (11), which is composed of two semi-circular parts (112) connected by a simple hinge (113) and a flange (114); The hook (311) is set on the middle arc-shaped main beam on the back of the arc-shaped photovoltaic panel (20), and each semi-circular piece is provided with two sets of hooks (321) corresponding to the hook (311).

10. A wind-solar co-generation system according to claim 6, characterized in that: The surface of the arc-shaped photovoltaic panel (20) is covered with a protective layer.

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