Photovoltaic complementary power generation system for wind power tower

Abstract

The utility model discloses a photovoltaic complementary power generation system for a wind power tower, and the wind power tower comprises a tower main column, a tower inclined rod, a tower cross rod frame, a tower transition section, a tower cylinder, a cabin, a hub, and blades. The photovoltaic power generation system comprises a connecting plate, an inner transverse support, a grating plate, an outer inclined support, an outer transverse support, photovoltaic power generation equipment and a guardrail, the connecting plate is welded to a tower main column and connected with the inner transverse support and the outer transverse support through bolts, the grating plate is laid on the upper surface of the inner transverse support and the upper surface of the outer transverse support, the photovoltaic power generation equipment is installed on the grating plate, and the guardrail is connected with the outer inclined support and the outer transverse support. The system is simple in structure and high in installation efficiency, saves national land resources, reduces project cost, comprehensively utilizes a wind-solar power generation complementary system, can fully utilize photovoltaic power generation in summer with small wind power, increases the generating capacity, conveys more electric quantity, and reduces the pressure of a power grid.

Description

Technical Field

[0001] This utility model belongs to the field of wind power tower technology, specifically relating to a photovoltaic complementary power generation system for wind power towers. Background Technology

[0002] With the development of wind power towers, the rated power of single units is increasing, and the required tower height is also increasing. This leads to significant fatigue effects under wind loads and mechanical operation. Framed steel structure towers are used to improve the overall rigidity and stability of the towers, making operation safer, preventing fatigue failure, and extending the tower's fatigue life. Compared to hybrid towers, framed steel structure towers have an open central section that allows for sunlight exposure, and their larger surface area allows for the installation of photovoltaic power generation systems to achieve wind-solar hybrid power generation. Utility Model Content

[0003] The purpose of this utility model is to provide a photovoltaic complementary power generation system for wind turbine towers. By installing photovoltaic power generation equipment on a frame-type steel wind turbine tower, wind and solar complementary power generation can be achieved. This system has advantages such as saving land and increasing power generation, and provides a new way for the comprehensive utilization of wind turbine towers.

[0004] This utility model provides a photovoltaic complementary power generation system for wind turbine towers. The wind turbine tower includes a main tower column, diagonal tower members, horizontal tower members, a transition section, a tower tube, a nacelle, a hub, and blades. A photovoltaic power generation system is installed on the main tower column. The photovoltaic power generation system includes a connecting plate, an inner horizontal brace, a grid plate, an outer diagonal brace, an outer horizontal brace, photovoltaic power generation equipment, and a guardrail. The connecting plate is welded to the main tower column and connected to the inner and outer horizontal braces by bolts. The grid plate is laid on the upper surface of the inner and outer horizontal braces, and the photovoltaic power generation equipment is installed on the grid plate.

[0005] The inner cross brace is connected to the internal space enclosed by the main column of the tower. The outer cross brace is connected to the outside of the main column of the tower. The inner and outer cross braces are set on the same horizontal plane and covered with grating plates to form a complete installation platform. The installation platform is surrounded by guardrails.

[0006] The installation platform has multiple layers arranged in parallel, with the distance between adjacent installation platforms being 3.5-5m.

[0007] The distance between adjacent installation platforms is preferably 4m.

[0008] One end of the external diagonal brace is connected to the end of the external transverse brace away from the main column of the tower by bolts, and the other end is located below the external transverse brace and fixed to the outside of the main column of the tower.

[0009] The angle between the outer diagonal brace and the outer transverse brace is 30°.

[0010] This utility model provides a photovoltaic complementary power generation system for wind turbine towers. Its advantages include a simple structure and fast installation efficiency. Installing photovoltaic power generation equipment on wind turbine towers saves land used for photovoltaic power generation, conserves national land resources, and reduces project costs. The integrated utilization of wind and solar power generation allows for full utilization of photovoltaic power generation during the summer season when wind speeds are low, increasing power generation, transmitting more electricity, and reducing pressure on the power grid. External cross bracing on the outer side of the tower's main column increases the overall platform area, allowing for the installation of more photovoltaic power generation equipment, increasing the overall load-bearing area of ​​the tower, strengthening its load-bearing capacity, and further enhancing the stability of the wind turbine tower. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0012] Figure 2 This is a schematic diagram of a photovoltaic power generation system.

[0013] Figure 3 This is a schematic diagram of the installation platform structure;

[0014] The image is labeled as follows:

[0015] 1. Blade; 2. Hub; 3. Nacelle; 4. Tower; 5. Tower transition section; 6. Photovoltaic power generation system; 7. Tower crossbar; 8. Tower diagonal brace; 9. Tower main column; 10. Guardrail; 11. Photovoltaic power generation equipment; 12. External cross brace; 13. External diagonal brace; 14. Grating plate; 15. Internal cross brace; 16. Connecting plate. Detailed Implementation

[0016] The following detailed description, with reference to the accompanying drawings and an embodiment, illustrates a photovoltaic complementary power generation system for wind turbine towers provided by this utility model.

[0017] Example

[0018] Reference Figures 1-3 This embodiment describes a photovoltaic complementary power generation system for a wind turbine tower. The wind turbine tower includes a main tower column 9, diagonal braces 8, horizontal braces 7, a transition section 5, a tower tube 4, a nacelle 3, a hub 2, and blades 1. A photovoltaic power generation system 6 is installed on the main tower column 9. The photovoltaic power generation system includes a connecting plate 16, an inner horizontal brace 15, a grid plate 14, an outer diagonal brace 13, an outer horizontal brace 12, a photovoltaic power generation device 11, and a guardrail 10. The connecting plate 16 is welded to the main tower column 9 and is connected to the inner horizontal brace 15 and the outer horizontal brace 12 by bolts. The grid plate 14 is laid on the upper surface of the inner horizontal brace 15 and the outer horizontal brace 12, and the photovoltaic power generation device 11 is installed on the grid plate 14.

[0019] The inner cross brace 15 is connected to the internal space enclosed by the main column 9 of the tower. The outer cross brace 12 is connected to the outside of the main column 9 of the tower. The inner cross brace 15 and the outer cross brace 12 are set on the same horizontal plane and are covered with a grid plate 14 to form a complete installation platform. The installation platform is surrounded by a guardrail 10.

[0020] The installation platform has multiple layers arranged in parallel, with the distance between adjacent installation platforms being 3.5-5m.

[0021] Furthermore, the distance between adjacent installation platforms is 4m.

[0022] One end of the outer diagonal brace 13 is connected to the end of the outer horizontal brace 12 away from the main column 9 of the tower by bolts, and the other end is located below the outer horizontal brace 12 and fixed to the outside of the main column 9 of the tower.

[0023] The angle between the outer diagonal brace 13 and the outer horizontal brace 12 is 30°.

[0024] Installing photovoltaic (PV) power generation equipment on wind turbine towers can save the area occupied by PV power generation, which is beneficial for land conservation and saving national land resources. In the summer season when winds are low, PV power generation can be fully utilized to increase power generation, transmit more electricity, and reduce the pressure on the power grid.

[0025] Taking an 85-meter-high wind turbine tower with a 20-meter-wide lower section as an example, a photovoltaic power generation system can be installed at approximately 4 meters of height. At 85 meters, about 20 layers can be installed, with each layer averaging about 350 square meters, allowing for 7,000 square meters of photovoltaic power generation equipment. The daily power generation is approximately 12,000 kilowatt-hours, and the annual power generation is approximately 4 million kilowatt-hours, generating an annual revenue of 1.6 million yuan. Assuming a total lifespan of 20 years for each wind turbine tower, the potential revenue would be 32 million yuan.

Claims

1. A photovoltaic complementary power generation system for wind turbine towers, the wind turbine tower comprising a main tower column, diagonal tower members, horizontal tower members, a tower transition section, a tower tube, a nacelle, a hub, and blades, characterized in that: A photovoltaic power generation system is installed on the main column of the tower. The photovoltaic power generation system includes a connecting plate, an inner cross brace, a grid plate, an outer diagonal brace, an outer cross brace, photovoltaic power generation equipment, and a guardrail. The connecting plate is welded to the main column of the tower and is connected to the inner and outer cross braces by bolts. The grid plate is laid on the upper surface of the inner and outer cross braces, and the photovoltaic power generation equipment is installed on the grid plate.

2. A photovoltaic complementary power generation system for wind turbine towers according to claim 1, characterized in that: The inner cross brace is connected to the internal space enclosed by the main column of the tower. The outer cross brace is connected to the outside of the main column of the tower. The inner and outer cross braces are set on the same horizontal plane and covered with grating plates to form a complete installation platform. The installation platform is surrounded by guardrails.

3. A photovoltaic complementary power generation system for wind turbine towers according to claim 2, characterized in that: The installation platform has multiple layers arranged in parallel, with the distance between adjacent installation platforms being 3.5-5m.

4. A photovoltaic complementary power generation system for wind turbine towers according to claim 3, characterized in that: The distance between adjacent installation platforms is 4m.

5. A photovoltaic complementary power generation system for wind turbine towers according to claim 1, characterized in that: One end of the external diagonal brace is connected to the end of the external transverse brace away from the main column of the tower by bolts, and the other end is located below the external transverse brace and fixed to the outside of the main column of the tower.

6. A photovoltaic complementary power generation system for wind turbine towers according to claim 1, characterized in that: The angle between the outer diagonal brace and the outer transverse brace is 30°.

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