Large lift-drag combined vertical axis wind turbine

Abstract

The invention discloses a large lift-drag combined vertical axis wind turbine, which relates to the technical field of generators, and comprises a tower pole, a central column and a plurality of outer blades, the central column is rotatably arranged at the upper end of the tower pole, and a plurality of annular space connecting assemblies are vertically arranged on the outer surface of the central column; each annular space connecting assembly comprises a main connecting sleeve and two secondary connecting sleeves, the outer surface of the central column is fixedly sleeved with the main connecting sleeves and the secondary connecting sleeves, a plurality of main arm rods are fixed to the outer surface of each main connecting sleeve, and the end, away from the central column, of each main arm rod is fixedly connected with the adjacent outer blade; a first stay cable is fixed between the outer surface of each secondary connecting sleeve and the corresponding main arm rod, second stay cables are fixed between the upper end face and the lower end face of each main arm rod and the corresponding outer blades, and secondary arm rods are fixed between the two sides of each main arm rod and the corresponding outer blades. During use, swinging and vibration of the outer blades can be greatly restrained.

Description

Technical Field

[0001] This invention relates to the field of generator technology, and in particular to a large vertical axis wind turbine generator with lift and drag combined. Background Technology

[0002] A lift-drag hybrid wind turbine is a type of wind turbine that combines lift and drag blades to improve wind energy utilization efficiency and overall performance. At low wind speeds, the drag blades primarily provide the starting torque. When the wind acts on the blades, a pressure difference is created on both sides, generating resistance that pushes the blades to rotate, allowing the rotor to overcome static friction and begin to rotate. As the wind speed increases and the rotor speed reaches a certain level, the lift blades begin to play a major role. When the wind flows at a certain angle of attack, a pressure difference is generated on the upper and lower surfaces of the blades, creating lift perpendicular to the airflow direction, which drives the blades to rotate continuously, achieving efficient wind energy conversion.

[0003] Existing large-scale vertical axis wind turbines with lift-drag combination have certain defects in use. For example, although existing large-scale vertical axis wind turbines with lift-drag combination take into account both start-up and efficiency, the blade size is relatively large and the blade centrifugal force is very large. Traditional support structures (such as simple central column and crossbeam) are prone to blade vibration and fatigue fracture, and structural reliability has become a bottleneck. Summary of the Invention

[0004] This invention provides a large vertical axis wind turbine with lift-drag combination, which can solve the problem in the prior art: existing large vertical axis wind turbines with lift-drag combination are prone to blade vibration and fatigue fracture during use.

[0005] A large vertical axis wind turbine with lift-drag combination includes a tower, a central column, and multiple outer blades. The central column is rotatably mounted on the upper end of the tower. Multiple annular spatial connection components are vertically arranged on the outer surface of the central column. Each annular spatial connection component includes a main connecting sleeve and two secondary connecting sleeves. The main connecting sleeve and the secondary connecting sleeves are fixedly fitted onto the outer surface of the central column. Multiple main booms are fixed to the outer surface of each main connecting sleeve. The end of each main boom away from the central column is fixedly connected to the adjacent outer blade. A first inclined cable is fixed between the outer surface of each secondary connecting sleeve and the corresponding main boom. A second inclined cable is fixed between the upper and lower end faces of each main boom and the corresponding outer blade. Secondary booms are fixed between the two sides of each main boom and the corresponding outer blade.

[0006] As a further technical solution of the present invention, a wind duct is provided between each of the outer blades and the central column, and the outer surface of the wind duct is fixedly connected to the side wall of the main boom.

[0007] As a further technical solution of the present invention, a plurality of photovoltaic mechanisms are provided on the outer surface of the tower near the lower section. Each photovoltaic mechanism includes two mounting rods, each mounting rod is inclined, and a plurality of photovoltaic panels are fixed on the upper surface of two adjacent mounting rods. An installation component is provided between each mounting rod and the tower, and a cleaning component is also provided on each photovoltaic mechanism.

[0008] As a further technical solution of the present invention, each of the cleaning components includes two mounting seats, and the opposite surfaces of the two mounting seats are provided with side sliding grooves. An electric guide rail is fixed to the bottom of each side sliding groove. An electric slider is slidably arranged on each electric guide rail. A rotating rod is rotatably arranged between the two electric sliders. Multiple brush sleeves are fixed on the outer surface of the rotating rod. An active rotating unit is provided on each mounting seat to cooperate with the rotating rod. An air blowing unit is arranged between the two mounting seats.

[0009] As a further technical solution of the present invention, each of the active rotation units includes a lifting plate disposed on one side of the mounting base, a rack plate fixed on the lower end face of the lifting plate, two gear rings that cooperate with the rack plate fixedly sleeved on the outer surface of the rotating rod, and a control component that cooperates with the lifting plate is disposed on the mounting base.

[0010] As a further technical solution of the present invention, each of the control components includes a mounting plate fixed to the upper surface of the mounting base. Multiple guide rods are fixed to the upper end of the lifting plate. The upper end of each guide rod movably passes through the mounting plate and is fixed with a limit plate. Multiple springs are fixed between the limit plate and the upper surface of the mounting plate. Each spring is movably sleeved on the outer surface of the guide rod. Multiple iron blocks are fixed to the upper surface of the lifting plate. Multiple slots are opened on the upper surface of the mounting plate. An electromagnet is fixed in each slot.

[0011] As a further technical solution of the present invention, each of the side sliding grooves has a limiting sliding groove at its inner bottom and inner top. A baffle is slidably arranged in the limiting sliding groove. One end of the baffle is fixedly connected to the electric slider, and the other end of the baffle moves through the mounting base.

[0012] As a further technical solution of the present invention, the air blowing unit includes multiple mounting frames, each mounting frame is fixed with a mounting bracket, multiple fan groups are rotatably arranged on one side of the mounting bracket, and a protective net is fixed between the upper and lower end faces of the mounting bracket and the mounting frame.

[0013] As a further technical solution of the present invention, the lower end face of each pair of mounting seats is fixed with the same U-shaped frame, and the mounting frame is fixed to the inner bottom of the U-shaped frame.

[0014] As a further technical solution of the present invention, each of the installation components includes a fixing seat fixed to the outer surface of the tower, a plug rod fixed on one side of the fixing seat, a slot for use with the plug rod on the installation rod, the plug rod passing through the slot, a bolt passing through the installation rod, and a locking nut threadedly connected to the lower end of the bolt.

[0015] The beneficial effects of this invention are: 1. The central column bears the main bending moment and gravity. The main boom, cable 1 and cable 2 are used to install and connect the outer blades. The ends of multiple cable 2 are connected to the corresponding equal division points of the outer blades, forming a spatial statically indeterminate constraint, which greatly suppresses the swaying and vibration of the outer blades.

[0016] 2. When dust needs to be cleaned from the photovoltaic panels, the electric guide rail drives the electric slider to move, which in turn moves the rotating rod and multiple brush sleeves together. In the initial stage of the electric slider's movement, the active rotation unit causes the rotating rod to rotate along with the multiple brush sleeves. During this initial stage, the air blowing unit operates, generating airflow to blow away dust from the brush sleeves, ensuring their cleanliness. Then, as the electric slider, rotating rod, and brush sleeves continue to move, the active rotation unit releases the active drive on the rotating rod, preventing the brush sleeves from damaging the photovoltaic panels as they move upwards with the rotating rod and electric slider. The dust is pushed upwards. After the electric slider, rotating rod, and brush sleeve move to the other end of the mounting base, they move and reset. During this process, the active rotation unit causes the rotating rod and brush sleeve to rotate again. As the brush sleeve rotates, it pushes the dust on the photovoltaic panel downwards along the surface of the photovoltaic panel. Because the brush sleeve is rotating, it can push the cleaned dust downwards in time, and the dust will not remain at the contact point between the brush sleeve and the photovoltaic panel, resulting in good cleaning effect. Furthermore, during the dust blowing process, the air blowing unit continues to work, blowing the cleaned dust away from the photovoltaic panel.

[0017] 3. In the initial state, the rack plate, lifting plate, and iron block, under their own weight and the spring force, cause the rack plate to adhere to the upper surface of the gear ring. When the electromagnet is energized, it attracts the iron block, causing the iron block, lifting plate, rack plate, guide rod, and limit plate to move upward, thus moving the rack plate away from the gear ring. At this time, the spring is further stretched and deformed. When the electromagnet is de-energized, the spring causes the rack plate, lifting plate, guide rod, and limit plate to return to their original position downward, causing the rack plate to adhere to the outer surface of the gear ring again. This makes it convenient to use.

[0018] 4. In the initial state, the electric slider is located at one end of the side slide groove. At this time, the baffle blocks the side of the side slide groove to prevent external dust and other objects from falling into the side slide groove and affecting the movement of the electric slider. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the connection between the central column and the main connecting sleeve in this invention. Figure 1 ; Figure 2 This is a schematic diagram of the connection between the central column and the main connecting sleeve in this invention. Figure 2 ; Figure 3 This is a schematic diagram showing the connection between the annular space connection component and the outer blade in this invention; Figure 4 This is a schematic diagram showing the connection between the main boom and the first cable in this invention; Figure 5 This is a schematic diagram of the connection between the main boom and the secondary boom in this invention; Figure 6 This is a schematic diagram of the connection between the tower and the fixed base in this invention; Figure 7 This is a schematic diagram showing the connection between the mounting rod and the photovoltaic panel in this invention; Figure 8 This is a schematic diagram of the connection between the mounting base and the U-shaped frame in this invention. Figure 1 ; Figure 9 This is a schematic diagram of the connection between the mounting base and the U-shaped frame in this invention. Figure 2 ; Figure 10 This is a schematic diagram of the internal structure of the side sliding groove in this invention; Figure 11 This is a schematic diagram showing the connection between the electric slider and the baffle in this invention; Figure 12 This is a schematic diagram showing the connection between the rotating rod and the brush sleeve in this invention; Figure 13 This is a schematic diagram showing the connection between the rotating rod and the gear ring in this invention; Figure 14 This is a schematic diagram of the internal structure of the mounting frame in this invention; Figure 15 This is a schematic diagram of the connection between the lifting plate and the rack plate in this invention. Figure 1 ; Figure 16 This is a schematic diagram of the connection between the lifting plate and the rack plate in this invention. Figure 2 ; Figure 17 This is a schematic diagram of the connection between the mounting rod and the bolt in this invention; Figure 18 This is a schematic diagram showing the connection between the fixed base and the insertion rod in this invention.

[0020] In the diagram: 100, Tower; 101, Central Column; 102, Outer Blade; 103, Annular Space Connection Assembly; 104, Main Connecting Sleeve; 105, Secondary Connecting Sleeve; 106, Main Boom; 107, Stay Cable 1; 108, Stay Cable 2; 109, Secondary Boom; 110, Wind Tunnel; 200, Mounting Rod; 201, Photovoltaic Panel; 300, Mounting Base; 301, Side Sliding Groove; 302, Electric Guide Rail; 303, Electric Slider; 304, Rotating Rod 305. Brush sleeve; 400. Lifting plate; 401. Rack plate; 402. Gear ring; 403. Mounting plate; 404. Guide rod; 405. Limiting plate; 406. Spring; 407. Iron block; 408. Electromagnet; 500. Baffle; 600. Mounting frame; 601. Mounting bracket; 602. Fan assembly; 603. Protective net; 604. U-shaped frame; 700. Fixing base; 701. Insert rod; 702. Slot; 703. Bolt. Detailed Implementation

[0021] The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0022] Reference Figures 1-18 A large vertical-axis wind turbine generator with lift-drag combination includes a tower 100, a central column 101, and multiple outer blades 102. The central column 101 is rotatably mounted on the upper end of the tower 100. The installation and connection between the central column 101 and the tower 100 is prior art. Multiple annular spatial connection components 103 are vertically arranged on the outer surface of the central column 101. Each annular spatial connection component 103 includes a main connecting sleeve 104 and two secondary connecting sleeves 105. The main connecting sleeve 104 and the secondary connecting sleeves 105 are fixedly sleeved on the central column. On the outer surface of 101, multiple main booms 106 are fixed to the outer surface of each main connecting sleeve 104. One end of each main boom 106 away from the central column 101 is fixedly connected to the adjacent outer blade 102. A first cable 107 is fixed between the outer surface of each secondary connecting sleeve 105 and the corresponding main boom 106. A second cable 108 is fixed between the upper and lower end faces of each main boom 106 and the corresponding outer blade 102. A secondary boom 109 is fixed between both sides of each main boom 106 and the corresponding outer blade 102.

[0023] The central column 101 bears the main bending moment and gravity. The main boom 106, cable 107 and cable 2 108 are used to install and connect the outer blades 102. The ends of the multiple cable 2 108 are connected to the corresponding equal division points of the outer blades 102, forming a spatial statically indeterminate constraint, which greatly suppresses the swaying and vibration of the outer blades 102.

[0024] Each outer blade 102 is provided with a wind duct 110 between it and the central column 101. The outer surface of the wind duct 110 is fixedly connected to the side wall of the main boom 106.

[0025] Multiple photovoltaic mechanisms are provided on the outer surface of the tower 100 near the lower section. Each photovoltaic mechanism includes two mounting rods 200. Each mounting rod 200 is inclined. Multiple photovoltaic panels 201 are fixed on the upper surface of two adjacent mounting rods 200. An installation component is provided between each mounting rod 200 and the tower 100. A cleaning component is also provided on each photovoltaic mechanism.

[0026] Installing multiple photovoltaic panels 201 on the tower 100 for photovoltaic power generation is an existing technology and a conventional technical means in this field.

[0027] Each cleaning component includes two mounting bases 300. The opposite surfaces of the two mounting bases 300 are provided with side sliding grooves 301. An electric guide rail 302 is fixed to the inner bottom of each side sliding groove 301. An electric slider 303 is slidably arranged on each electric guide rail 302. A rotating rod 304 is rotatably arranged between the two electric sliders 303. Multiple brush sleeves 305 are fixed to the outer surface of the rotating rod 304. Each mounting base 300 is provided with an active rotation unit that works in conjunction with the rotating rod 304. An air blowing unit is arranged between the two mounting bases 300.

[0028] The mounting base 300 is fixedly connected to the mounting rod 200, and the upper surface of the mounting rod 200 is provided with a recessed groove for use with the mounting base 300.

[0029] This application solution is applicable to areas with little rainfall. When a lot of dust covers the photovoltaic panel 201, it can easily affect the working efficiency of the photovoltaic panel 201. Therefore, it is necessary to use a cleaning component to clean the dust on the photovoltaic panel 201 regularly.

[0030] When dust needs to be cleaned from the photovoltaic panel 201, the electric guide rail 302 drives the electric slider 303 to move, thereby moving the rotating rod 304 and multiple brush sleeves 305 together. In the initial stage of the electric slider 303's movement, the active rotation unit causes the rotating rod 304 to rotate along with the multiple brush sleeves 305. During this initial stage, the air blowing unit operates, generating airflow to blow dust off the multiple brush sleeves 305, ensuring their cleanliness. Then, as the electric slider 303, rotating rod 304, and brush sleeves 305 continue to move, the active rotation unit releases the active drive on the rotating rod 304, preventing the brush sleeves 305 from damaging the photovoltaic panel 201 while moving obliquely upwards with the rotating rod 304 and electric slider 303. The dust on the photovoltaic panel 201 is pushed upwards. When the electric slider 303, rotating rod 304, and brush sleeve 305 move to the other end of the mounting base 300, the electric slider 303, rotating rod 304, and brush sleeve 305 move and reset. During this process, the active rotation unit causes the rotating rod 304 and brush sleeve 305 to rotate again. During the rotation of the brush sleeve 305, the dust on the photovoltaic panel 201 will be pushed downwards along the surface of the photovoltaic panel 201. Since the brush sleeve 305 is in a rotating state, the cleaned dust can be pushed downwards in time. The dust will not remain at the contact position between the brush sleeve 305 and the photovoltaic panel 201, resulting in a good cleaning effect. During the dust blowing process, the air blowing unit continues to work, blowing the cleaned dust away from the photovoltaic panel 201.

[0031] When cleaning the photovoltaic panel 201, first clean the topmost photovoltaic panel 201, and then proceed downwards.

[0032] Each active rotation unit includes a lifting plate 400 disposed on one side of the mounting base 300. A rack plate 401 is fixed on the lower end face of the lifting plate 400. Two gear rings 402 that cooperate with the rack plate 401 are fixedly sleeved on the outer surface of the rotating rod 304. A control component that cooperates with the lifting plate 400 is disposed on the mounting base 300.

[0033] When the rack plate 401 is attached to the upper surface of the gear ring 402, when the electric slider 303, rotating rod 304 and brush sleeve 305 move, the gear ring 402 will move along with it. Since the gear ring 402 and the rack plate 401 are in a meshing state at this time, when the gear ring 402 moves, the rack plate 401 will cause the gear ring 402 and the rotating rod 304 to rotate, thereby driving the brush sleeve 305 to rotate.

[0034] Each control component includes a mounting plate 403 fixed to the upper surface of the mounting base 300. Multiple guide rods 404 are fixed to the upper end of the lifting plate 400. The upper end of each guide rod 404 movably passes through the mounting plate 403 and is fixed with a limit plate 405. Multiple springs 406 are fixed between the limit plate 405 and the upper surface of the mounting plate 403. Each spring 406 is movably sleeved on the outer surface of the guide rod 404. Multiple iron blocks 407 are fixed to the upper surface of the lifting plate 400. Multiple slots are opened on the upper surface of the mounting plate 403. An electromagnet 408 is fixed in each slot. Controlling the on and off of the electromagnet 408 is existing technology.

[0035] In the initial state, under the action of their own weight and the elastic force of the spring 406, the rack plate 401, the lifting plate 400, and the iron block 407 are pressed against the upper surface of the gear ring 402. When the electromagnet 408 is energized, it attracts the iron block 407, thereby causing the iron block 407, the lifting plate 400, the rack plate 401, the guide rod 404, and the limiting plate 405 to move upward, thus moving the rack plate 401 away from the gear ring 402. At this time, the spring 406 is further stretched and deformed. When the electromagnet 408 is de-energized, under the action of the spring 406, the rack plate 401, the lifting plate 400, the guide rod 404, and the limiting plate 405 are pushed downward to reset, causing the rack plate 401 to press against the outer surface of the gear ring 402 again.

[0036] Each side slide groove 301 has a limiting slide groove at its inner bottom and inner top. A baffle 500 is slidably installed in the limiting slide groove. One end of the baffle 500 is fixedly connected to the electric slider 303, and the other end of the baffle 500 moves through the mounting base 300.

[0037] In the initial state, the electric slider 303 is located at one end of the side slide groove 301. At this time, the baffle 500 blocks the side of the side slide groove 301 to prevent external dust and other objects from falling into the side slide groove 301 and affecting the movement of the electric slider 303.

[0038] The air blowing unit includes multiple mounting frames 600, and each mounting frame 600 has a mounting bracket 601 fixed inside. Multiple fan groups 602 are rotatably arranged on one side of the mounting bracket 601. Protective nets 603 are fixed between the upper and lower end faces of the mounting bracket 601 and the mounting frame 600.

[0039] The rotation of the fan assembly 602 when energized is existing technology.

[0040] When the fan assembly 602 is working, it generates airflow. When the airflow passes through the rotating brush sleeve 305, it can clean the dust adhering to the brush sleeve 305. When the brush sleeve 305 pushes the dust off the photovoltaic panel 201, the airflow generated by the fan assembly 602 can blow the dust away.

[0041] Each pair of mounting bases 300 has the same U-shaped frame 604 fixed to its lower end face, and the mounting frame 600 is fixed to the inner bottom of the U-shaped frame 604.

[0042] The installation method of mounting frame 600 is existing technology.

[0043] Each mounting assembly includes a mounting base 700 fixed to the outer surface of the tower 100. A plug rod 701 is fixed to one side of the mounting base 700. A slot 702 for use with the plug rod 701 is provided on the mounting rod 200. The plug rod 701 passes through the slot 702. A bolt 703 is provided through the mounting rod 200. A locking nut is threaded to the lower end of the bolt 703.

[0044] By using the combination of the insert rod 701, slot 702, bolt 703 and locking nut, the insert rod 701 and the mounting rod 200 can be detachably installed, thereby enabling the tower 100 and the photovoltaic mechanism to be detachably installed. This allows the photovoltaic mechanism to be installed after the tower 100 has been transported to the installation site, facilitating the transportation and hoisting of the tower 100.

[0045] In use, the central column 101 bears the main bending moment and gravity. The main boom 106, cable 107 and cable 2 108 are used to install and connect the outer blade 102. The ends of the multiple cable 2 108 are connected to the corresponding equal division points of the outer blade 102, forming a spatial statically indeterminate constraint, which greatly suppresses the swaying and vibration of the outer blade 102. When dust needs to be cleaned from the photovoltaic panel 201, the electric guide rail 302 drives the electric slider 303 to move, thereby moving the rotating rod 304 and multiple brush sleeves 305 together. In the initial stage of the electric slider 303's movement, the active rotation unit causes the rotating rod 304 to rotate along with the multiple brush sleeves 305. During this initial stage, the air blowing unit operates, generating airflow to blow dust off the multiple brush sleeves 305, ensuring their cleanliness. Then, as the electric slider 303, rotating rod 304, and brush sleeves 305 continue to move, the active rotation unit releases the active drive on the rotating rod 304, preventing the brush sleeves 305 from damaging the photovoltaic panel 201 while moving obliquely upwards with the rotating rod 304 and electric slider 303. The dust on the photovoltaic panel 201 is pushed upwards. When the electric slider 303, rotating rod 304 and brush sleeve 305 move to the other end of the mounting base 300, the electric slider 303, rotating rod 304 and brush sleeve 305 move and reset. During this process, the active rotation unit causes the rotating rod 304 and brush sleeve 305 to rotate again. During the rotation, the brush sleeve 305 pushes the dust on the photovoltaic panel 201 downwards along the surface of the photovoltaic panel 201. Since the brush sleeve 305 is in a rotating state, it can push the cleaned dust downwards in time. The dust will not remain at the contact position between the brush sleeve 305 and the photovoltaic panel 201, resulting in a good cleaning effect. During the dust blowing process, the air blowing unit continues to work, blowing the cleaned dust away from the photovoltaic panel 201. In the initial state, under the action of their own weight and the elastic force of the spring 406, the rack plate 401, the lifting plate 400, and the iron block 407 are pressed against the upper surface of the gear ring 402. When the electromagnet 408 is energized, it attracts the iron block 407, thereby causing the iron block 407, the lifting plate 400, the rack plate 401, the guide rod 404, and the limiting plate 405 to move upward, thus moving the rack plate 401 away from the gear ring 402. At this time, the spring 406 is further stretched and deformed. When the electromagnet 408 is de-energized, under the action of the spring 406, the rack plate 401, the lifting plate 400, the guide rod 404, and the limiting plate 405 are pushed downward to reset, causing the rack plate 401 to press against the outer surface of the gear ring 402 again.

[0046] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A large vertical axis wind turbine generator with lift-to-drag combination, comprising a tower (100), a central column (101), and multiple outer blades (102), characterized in that, The central column (101) is rotatably mounted on the upper end of the tower (100). Multiple annular spatial connection components (103) are vertically arranged on the outer surface of the central column (101). Each annular spatial connection component (103) includes a main connecting sleeve (104) and two secondary connecting sleeves (105). The main connecting sleeve (104) and the secondary connecting sleeves (105) are fixedly fitted onto the outer surface of the central column (101). Multiple main boom rods (106) are fixed to the outer surface of each main connecting sleeve (104). Each main boom (106) is fixedly connected to the adjacent outer blade (102) at one end away from the central column (101). Each secondary connecting sleeve (105) has a first cable (107) fixed between its outer surface and the corresponding main boom (106). Each main boom (106) has a second cable (108) fixed between its upper and lower end faces and the corresponding outer blade (102). Each main boom (106) has a secondary boom (109) fixed between its two sides and the corresponding outer blade (102).

2. A large vertical axis wind turbine generator with lift and drag combination according to claim 1, characterized in that, Each of the outer blades (102) is provided with a wind duct (110) between it and the central column (101), and the outer surface of the wind duct (110) is fixedly connected to the side wall of the main boom (106).

3. A large vertical axis wind turbine generator combining lift and drag according to claim 1, characterized in that, Multiple photovoltaic mechanisms are provided on the outer surface of the tower (100) near the lower section. Each photovoltaic mechanism includes two mounting rods (200). Each mounting rod (200) is inclined. Multiple photovoltaic panels (201) are fixed on the upper surface of two adjacent mounting rods (200). An installation component is provided between each mounting rod (200) and the tower (100). A cleaning component is also provided on each photovoltaic mechanism.

4. A large vertical axis wind turbine generator combining lift and drag according to claim 3, characterized in that, Each of the cleaning components includes two mounting bases (300), and the opposite surfaces of the two mounting bases (300) are provided with side sliding grooves (301). An electric guide rail (302) is fixed to the inner bottom of each side sliding groove (301). An electric slider (303) is slidably arranged on each electric guide rail (302). A rotating rod (304) is rotatably arranged between the two electric sliders (303). Multiple brush sleeves (305) are fixed to the outer surface of the rotating rod (304). Each mounting base (300) is provided with an active rotating unit that works in conjunction with the rotating rod (304). An air blowing unit is arranged between the two mounting bases (300).

5. A large vertical axis wind turbine generator with lift and drag combination according to claim 4, characterized in that, Each of the active rotation units includes a lifting plate (400) disposed on one side of the mounting base (300). A rack plate (401) is fixed on the lower end face of the lifting plate (400). Two gear rings (402) that cooperate with the rack plate (401) are fixedly sleeved on the outer surface of the rotating rod (304). A control component that cooperates with the lifting plate (400) is provided on the mounting base (300).

6. A large vertical axis wind turbine generator with lift and drag combination according to claim 5, characterized in that, Each of the control components includes a mounting plate (403) fixed to the upper surface of the mounting base (300). Multiple guide rods (404) are fixed to the upper end of the lifting plate (400). The upper end of each guide rod (404) movably passes through the mounting plate (403) and is fixed with a limiting plate (405). Multiple springs (406) are fixed between the limiting plate (405) and the upper surface of the mounting plate (403). Each spring (406) is movably sleeved on the outer surface of the guide rod (404). Multiple iron blocks (407) are fixed to the upper surface of the lifting plate (400). Multiple slots are opened on the upper surface of the mounting plate (403). An electromagnet (408) is fixed in each slot.

7. A large vertical axis wind turbine generator with lift and drag combination according to claim 4, characterized in that, Each of the side slide grooves (301) has a limiting slide groove at its inner bottom and inner top. A baffle (500) is slidably arranged in the limiting slide groove. One end of the baffle (500) is fixedly connected to the electric slider (303), and the other end of the baffle (500) moves through the mounting base (300).

8. A large vertical axis wind turbine generator with lift and drag combination according to claim 4, characterized in that, The air blowing unit includes multiple mounting frames (600), each mounting frame (600) has a mounting bracket (601) fixed inside, and multiple fan groups (602) are rotatably arranged on one side of the mounting bracket (601). A protective net (603) is fixed between the upper and lower end faces of the mounting bracket (601) and the mounting frame (600).

9. A large vertical axis wind turbine generator with lift-drag combination according to claim 8, characterized in that, Each pair of mounting bases (300) has the same U-shaped frame (604) fixed to its lower end face, and the mounting frame (600) is fixed to the inner bottom of the U-shaped frame (604).

10. A large vertical axis wind turbine generator with lift and drag combination according to claim 3, characterized in that, Each of the mounting components includes a mounting base (700) fixed to the outer surface of the tower (100), a plug rod (701) fixed to one side of the mounting base (700), a slot (702) for use with the plug rod (701) is provided on the mounting rod (200), the plug rod (701) passes through the slot (702), and a bolt (703) is provided through the mounting rod (200), with a locking nut threaded to the lower end of the bolt (703).

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