Floating type vertical axis fan and control method of floating type vertical axis fan

Abstract

The invention provides a floating type vertical-axis fan and a control method of the floating type vertical-axis fan. The floating type vertical-axis fan comprises a floating body assembly and a control assembly, wherein the floating body assembly comprises an outer floating body and an inner floating body; the power generation assembly comprises a frame body, fan blades and a power generation part, the inner floating body is connected with the frame body, the fan blades are arranged on the frame body, and the power generation part is arranged between the inner floating body and the outer floating body; the first protection assembly comprises a first driving part and a moving part, the first driving part is arranged in the inner floating body, the moving part is movably arranged, the first driving part is in driving connection with the moving part, and when the moving part is located at the extending position, the moving part and the inner floating body synchronously rotate; and the moving part is in contact with liquid outside the floating type vertical axis fan so as to reduce the rotating speed of the inner floating body. By means of the technical scheme, the problems that in the related technology, if the rotating speed is too large, abrasion of all parts of the fan is aggravated, larger external load nucleus is brought to the fan, and the structural service life and the safety performance of the fan are affected can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power equipment, and in particular to a floating vertical axis wind turbine and a control method for the floating vertical axis wind turbine. Background Art

[0002] As a green renewable energy, wind energy is increasingly being developed and utilized. The development focus of the wind power industry is gradually shifting from land to sea. The vast deep sea has huge potential for wind energy development. Deep sea and large-scale development are the main directions of offshore wind power development. Floating vertical axis wind turbines are offshore wind power generation technologies that combine vertical axis wind turbines and floating platforms to ensure the realization of offshore wind power generation.

[0003] In the related art, within a certain range where the wind speed is greater than the maximum operating wind speed, the deceleration of the vertical axis wind turbine is mainly achieved by increasing the torque to suppress the increase in the speed.

[0004] However, if the speed is too high, it will cause increased wear on the various components of the fan and bring greater external loads to the fan, affecting the structural life and safety performance of the fan. Summary of the invention

[0005] The present invention provides a floating vertical axis fan and a control method for the floating vertical axis fan to solve the problem in the related art that too high a rotation speed will cause increased wear of various components of the fan, and will also bring a larger external load to the fan, affecting the structural life and safety performance of the fan.

[0006] According to one aspect of the present invention, there is provided a floating vertical axis wind turbine, which comprises: a floating body assembly, comprising an outer floating body fixedly arranged and an inner floating body rotatably arranged in the outer floating body; a power generation assembly, comprising a frame, a fan blade and a power generation element, the inner floating body is connected to the frame, the fan blade is arranged on the frame, and the power generation element is arranged between the inner floating body and the outer floating body; a first protective assembly, comprising a first driving member and a moving member, the first driving member is arranged in the inner floating body, the moving member is movably arranged along the radial direction of the inner floating body and is located below the outer floating body, the first driving member is drivingly connected to the moving member so that the moving member has an extended position extending out of the inner floating body and a stored position stored in the inner floating body, when the moving member is in the extended position, when the moving member rotates synchronously with the inner floating body, the moving member contacts the liquid outside the floating vertical axis wind turbine to reduce the rotation speed of the inner floating body.

[0007] Furthermore, a receiving cavity for receiving the moving part is arranged in the inner float, and a mounting through hole communicating with the receiving cavity is arranged on the side wall of the inner float, and the moving part can be passed through the mounting through hole so that the moving part can switch between the storage position and the extended position.

[0008] Furthermore, the first driving member includes a first hydraulic cylinder, the cylinder body of the first hydraulic cylinder is arranged in the accommodating chamber, the piston rod of the first hydraulic cylinder is connected to the moving member, and the piston rod of the first hydraulic cylinder is movably arranged along the radial direction of the inner float; the moving member includes a moving plate, and a sealing member is provided between the moving plate and the inner float to seal the accommodating chamber.

[0009] Furthermore, the sealing member includes a sealing ring, which is arranged in the mounting through hole, and the movable plate is passed through the sealing ring; the first driving member includes two first hydraulic cylinders, which are respectively arranged at the upper and lower ends of the movable plate, and the piston rods of the two first hydraulic cylinders are connected to the movable plate.

[0010] Furthermore, the first protection assembly includes a plurality of first driving members and a plurality of moving members, the plurality of first driving members are arranged at intervals along the circumference of the inner floating body, and the plurality of first driving members and the plurality of moving members are arranged in a one-to-one correspondence.

[0011] Furthermore, a second protective component is provided on the fan blade, and the second protective component includes a second driving member and a protective member. The second driving member is arranged inside the fan blade, and the protective member is rotatably arranged on the fan blade. The second driving member is drivingly connected to the protective member, and the driving protective member can rotate relative to the fan blade so that an angle is formed between the protective member and the fan blade, thereby reducing the rotation speed of the fan blade.

[0012] Furthermore, the second driving member includes a second hydraulic cylinder, the protective member includes a protective plate, the first side of the protective plate is rotatably arranged on the fan blade, and the piston rod of the second hydraulic cylinder is connected to the second side of the protective plate opposite to the first side, so that there is an angle between the protective plate and the fan blade.

[0013] Furthermore, the power generation component includes a plurality of wind blades, which are arranged at intervals along the circumferential direction of the frame, and a second protective component is provided on each wind blade; the power generation component also includes a plurality of blade supports, and the first sides of the plurality of blade supports are connected to the frame, and the plurality of blade supports and the plurality of wind blades are arranged one-to-one on the second side opposite to the first side of the blade supports.

[0014] Furthermore, the power generating element includes a rotor and a stator, the rotor is arranged on the inner floating body, the stator is arranged on the outer floating body, the outer floating body is provided with a connecting hole, the inner floating body is passed through the connecting hole, the stator is arranged on the hole wall of the connecting hole, and the rotor is arranged on the outer wall of the inner floating body.

[0015] Furthermore, the floating vertical axis wind turbine also includes a gravity anchor and a mooring rope, wherein a first end of the mooring rope is connected to the outer buoy, and a second end of the mooring rope is connected to the gravity anchor.

[0016] According to another aspect of the present invention, a control method for a floating vertical axis fan is provided, which is used to control the floating vertical axis fan provided above, and the control method includes: detecting the rotational speed of the fan blades; when the detected rotational speed of the fan blades is greater than or equal to a first preset value and less than a second preset value, controlling the movable member to switch to an extended position, and the protective member to remain in an initial position; when the detected rotational speed of the fan blades is greater than or equal to the second preset value, controlling the movable member to remain in the extended position, and the protective member to rotate relative to the fan blades; when the detected rotational speed of the fan blades is less than the first preset value, controlling the movable member to switch to a stored position, and the protective member to remain in the initial position.

[0017] By applying the technical solution of the present invention, a floating vertical axis wind turbine includes a buoy assembly, a power generation assembly and a first protective assembly. The buoy assembly includes an outer buoy and an inner buoy. The outer buoy can float on the water surface, and the inner buoy can be rotatably arranged in the outer buoy. The frame of the power generation assembly is connected to the inner buoy, and the wind turbine blades are arranged on the frame. The power generation device is arranged between the inner buoy and the outer buoy. Then, the wind force on the sea surface drives the wind turbine blades to rotate, and the wind blades drive the frame to rotate. Since the frame is connected to the inner buoy, the inner buoy rotates with the frame, thereby ensuring that the generator generates electricity, thereby converting wind energy into electrical energy through the power generation assembly and storing it in the generator, thereby improving energy utilization. Among them, in order to avoid the problem that the speed of the generator is fast when the wind force is high, thereby causing the generator to be overloaded and damaged, a first driving member is arranged in the inner float, and the movable member can be movably arranged below the outer float along the radial direction of the inner float. The first driving member is connected to the movable member, so that the first driving member can drive the movable member to extend out of the inner float or be stored in the inner float. When the movable member extends out of the inner float and is in the extended position, the movable member can rotate synchronously with the inner float, and the movable member can contact the external liquid to increase the rotational resistance, thereby reducing the speed of the inner float, avoiding the problem that the speed of the inner float is too fast, causing the generator to be overloaded and damaged. When the wind force is low, the first driving member drives the movable member to be stored in the inner float in the storage position, which can ensure that wind energy is converted into electrical energy and the electrical energy is stored in the generator, thereby improving the practicality and structural reliability of the floating vertical axis wind turbine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of a floating vertical axis wind turbine provided according to an embodiment of the present invention is shown;

[0020] Figure 2A schematic diagram showing a first protection assembly provided in an embodiment of the present invention is provided in an inner buoy;

[0021] Figure 3 A schematic diagram of a first protection component provided according to an embodiment of the present invention is shown;

[0022] Figure 4 A schematic diagram showing another perspective of a first protection assembly provided in an embodiment of the present invention being arranged in an inner float.

[0023] The above drawings include the following reference numerals:

[0024] 10. Floating body assembly; 11. Inner floating body; 12. External floating body;

[0025] 20. Power generation assembly; 21. Frame; 22. Fan blades; 23. Blade bracket;

[0026] 30. First protection assembly; 31. First driving member; 311. First hydraulic cylinder; 32. Moving member; 321. Moving plate;

[0027] 41. Gravity anchor; 42. Mooring rope. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] like Figures 1 to 4As shown, an embodiment of the present invention provides a floating vertical axis wind turbine, which includes a floating body assembly 10, a power generation assembly 20 and a first protection assembly 30. The floating body assembly 10 includes an outer floating body 12 that is fixedly arranged and an inner floating body 11 that is rotatably arranged in the outer floating body 12. The power generation assembly 20 includes a frame 21, a wind turbine blade 22 and a power generation element. The inner floating body 11 is connected to the frame 21, the wind turbine blade 22 is arranged on the frame 21, the power generation element is arranged between the inner floating body 11 and the outer floating body 12, and the first protection assembly 30 includes a first protection assembly 30. A driving member 31 and a moving member 32, the first driving member 31 is arranged in the inner floating body 11, the moving member 32 is movably arranged along the radial direction of the inner floating body 11 and is located below the outer floating body 12, the first driving member 31 is drivingly connected to the moving member 32 so that the moving member 32 has an extended position extending out of the inner floating body 11 and a stored position stored in the inner floating body 11, when the moving member 32 is in the extended position, when the moving member 32 rotates synchronously with the inner floating body 11, the moving member 32 contacts the liquid outside the floating vertical axis fan to reduce the rotation speed of the inner floating body 11.

[0030] The floating vertical axis wind turbine provided in this embodiment includes a buoy assembly 10, a power generation assembly 20 and a first protective assembly 30. The buoy assembly 10 includes an outer buoy 12 and an inner buoy 11. The outer buoy 12 can float on the water surface, and the inner buoy 11 is rotatably arranged in the outer buoy 12. The frame 21 of the power generation assembly 20 is connected to the inner buoy 11, and the wind turbine blades 22 are arranged on the frame 21. The power generation element is arranged between the inner buoy 11 and the outer buoy 12, so that the wind force on the sea surface drives the wind turbine blades 22 to rotate, and the wind turbine blades 22 drive the frame 21 to rotate. Since the frame 21 is connected to the inner buoy 11, the inner buoy 11 rotates together with the frame 21, so as to ensure the power generation of the generator, thereby converting the wind energy into electrical energy through the power generation assembly 20 and storing it in the generator, thereby improving the energy utilization rate. Among them, in order to avoid the problem that the speed of the generator is fast when the wind force is high, thereby causing the generator to be overloaded and damaged, the first driving member 31 is arranged in the inner floating body 11, and the moving member 32 can be movably arranged below the outer floating body 12 along the radial direction of the inner floating body 11. The first driving member 31 is driven and connected to the moving member 32, so that the first driving member 31 can drive the moving member 32 to extend out of the inner floating body 11 or be stored in the inner floating body 11. When the moving member 32 extends out of the inner floating body 11 and is in the extended position, the moving member 32 can rotate synchronously with the inner floating body 11, and the moving member 32 can contact with the external liquid and thus increase the rotational resistance, thereby reducing the speed of the inner floating body 11, avoiding the problem that the speed of the inner floating body 11 is too fast, causing the generator to be overloaded and damaged. When the wind force is low, the first driving member 31 drives the moving member 32 to be stored in the inner floating body 11 in the storage position, which can ensure that wind energy is converted into electrical energy and the electrical energy is stored in the generator, thereby improving the practicality and structural reliability of the floating vertical axis wind turbine.

[0031] like Figures 1 to 4 As shown, a receiving cavity for receiving the moving member 32 is provided in the inner float 11, and a mounting through hole is provided on the side wall of the inner float 11, which is connected with the receiving cavity, and the moving member 32 can be inserted in the mounting through hole, so that the moving member 32 can switch between the storage position and the extended position. With the above structure, a receiving cavity is provided in the inner float 11, and a mounting through hole is provided on the side wall of the inner float 11, which is connected with the receiving cavity, and the moving member 32 is provided in the receiving cavity and can be inserted in the mounting through hole, so that when the moving member 32 is in the extended position, the moving member 32 is inserted in the mounting through hole and then extends out of the inner float 11, so that the moving member 32 can contact with the external liquid and thus increase the resistance, avoid overloading of the power generating member, and can drive the moving member 32 to be stored in the receiving cavity through the first driving member 31, so as to ensure that the moving member 32 is in the storage position, thereby improving the structural reliability of the moving member 32.

[0032] like Figure 2 and Figure 3 As shown, the first driving member 31 includes a first hydraulic cylinder 311, the cylinder body of the first hydraulic cylinder 311 is arranged in the accommodating chamber, the piston rod of the first hydraulic cylinder 311 is connected to the moving member 32, and the piston rod of the first hydraulic cylinder 311 is movably arranged along the radial direction of the inner floating body 11. With the above structure, by arranging the first hydraulic cylinder 311 in the accommodating chamber, the cylinder body of the first hydraulic cylinder 311 is fixedly arranged in the accommodating chamber, and the piston rod of the first hydraulic cylinder 311 is connected to the moving member 32, and then the first hydraulic cylinder 311 can drive the piston rod to move and then drive the moving member 32 to move and retract, ensuring that the moving member 32 can stably switch between the extended position and the stored position.

[0033] like Figure 2 and Figure 3 As shown, the moving member 32 includes a moving plate 321, and a sealing member is provided between the moving plate 321 and the inner float 11 to seal the accommodating cavity. With the above structure, a sealing member is provided between the moving plate 321 and the inner float 11, so that the accommodating cavity can be sealed when the moving member 32 moves, and external liquid is prevented from entering the accommodating cavity.

[0034] In this embodiment, the sealing member includes a sealing ring, which is arranged in the mounting through hole, and the movable plate 321 is inserted in the sealing ring. A sealing ring is arranged in the mounting through hole, and the sealing ring can be sealed with the movable plate 321, and then the movable plate 321 can be sealed with the sealing ring when it moves, so as to prevent external liquid from entering the accommodating cavity.

[0035] like Figure 2 and Figure 3 As shown, the first driving member 31 includes two first hydraulic cylinders 311, which are respectively arranged at the upper and lower ends of the moving plate 321, and the piston rods of the two first hydraulic cylinders 311 are connected to the moving plate 321. With the above structure, two first hydraulic cylinders 311 are arranged in the accommodating cavity, one of the two first hydraulic cylinders 311 is connected to the upper end of the moving plate 321, and the other of the two first hydraulic cylinders 311 is connected to the lower end of the moving plate 321, so that the structural stability of the moving member 32 extending out can be ensured under the action of the two first hydraulic cylinders 311.

[0036] like Figures 2 to 4As shown, the first protection assembly 30 includes a plurality of first driving members 31 and a plurality of moving members 32, and the plurality of first driving members 31 are arranged at intervals along the circumference of the inner floating body 11, and the plurality of first driving members 31 and the plurality of moving members 32 are arranged in a one-to-one correspondence. With the above structure, by arranging a plurality of first driving members 31 and a plurality of moving members 32, the plurality of first driving members 31 and the plurality of moving members 32 are arranged in a one-to-one correspondence, so that when the inner floating body 11 is extended, the resistance can be further increased by extending the inner floating body 11 through the hungry moving members 32, so that the plurality of moving members 32 are in contact with the external liquid, and the overload of the power generation component is avoided.

[0037] In this embodiment, a second protection component is provided on the fan blade 22, and the second protection component includes a second driving member and a protection member. The second driving member is provided in the fan blade 22, and the protection member is rotatably provided on the fan blade 22. The second driving member is drivingly connected to the protection member, and the protection member is driven to rotate relative to the fan blade 22, so that an angle is formed between the protection member and the fan blade 22, thereby reducing the rotation speed of the fan blade 22. With the above structure, by providing the second driving member on the fan blade 22, the second driving member can drive the protection member to rotate on the fan blade 22, thereby allowing the protection member to rotate relative to the fan blade 22, so that an angle is formed between the protection member and the fan blade 22, thereby ensuring that the protection member can reduce the rotation speed of the fan blade 22, and also preventing the rotation speed of the inner floating body 11 from being too high, resulting in overload of the power generation device.

[0038] In this embodiment, the second driving member includes a second hydraulic cylinder, the guard member includes a guard plate, a first side of the guard plate is rotatably disposed on the fan blade 22, and a piston rod of the second hydraulic cylinder is connected to a second side of the guard plate opposite to the first side, so that an angle exists between the guard plate and the fan blade 22. With the above structure, the second hydraulic cylinder is used to drive the guard plate to rotate on the fan blade 22, thereby ensuring that the guard plate can reduce the rotation speed of the fan blade 22.

[0039] like Figure 1 As shown, the power generation component 20 includes a plurality of fan blades 22, which are arranged at intervals along the circumferential direction of the frame 21, and a second protective component is provided on each fan blade 22. With the above structure, by arranging a plurality of fan blades 22, which are arranged at intervals along the circumferential direction of the frame 21, and a second protective component is provided on each fan blade 22, it is possible to ensure that wind energy is converted into electrical energy under the action of the plurality of fan blades 22, and also to protect the power generation component.

[0040] like Figure 1As shown, the power generation assembly 20 further includes a plurality of blade brackets 23, the first sides of the plurality of blade brackets 23 are all connected to the frame 21, and the plurality of blade brackets 23 and the plurality of fan blades 22 are arranged one by one on a second side opposite to the first side of the blade bracket 23. With the above structure, a plurality of blade brackets 23 are arranged, and the fan blades 22 are arranged on the blade brackets 23, so that the structural strength of the power generation assembly 20 can be improved.

[0041] In this embodiment, the power generation element includes a rotor and a stator, the rotor is arranged on the inner floating body 11, the stator is arranged on the outer floating body 12, the outer floating body 12 is provided with a connection hole, the inner floating body 11 is penetrated in the connection hole, the stator is arranged on the hole wall of the connection hole, and the rotor is arranged on the outer wall of the inner floating body 11. With the above structure, the rotor is arranged on the inner floating body 11, and the stator is arranged on the outer floating body 12. By the inner floating body 11 being penetrated in the connection hole of the outer floating body 12, the rotor can rotate relative to the stator, thereby ensuring that the power generation element can store electrical energy.

[0042] like Figure 1 As shown, the floating vertical axis wind turbine further includes a gravity anchor 41 and a mooring rope 42, wherein the first end of the mooring rope 42 is connected to the outer buoy 12, and the second end of the mooring rope 42 is connected to the gravity anchor 41. With the above structure, by connecting the first end of the mooring rope 42 to the outer buoy 12 and the second end of the mooring rope 42 to the gravity anchor 41, the floating vertical axis wind turbine can be fixed.

[0043] Another embodiment of the present invention provides a control method for a floating vertical axis wind turbine, which is used to control the floating vertical axis wind turbine provided above, and the control method includes:

[0044] Detecting the rotation speed of the fan blade 22;

[0045] When the detected rotation speed of the fan blade 22 is greater than or equal to the first preset value and less than the second preset value, the moving member 32 is controlled to switch to the extended position, and the protective member is maintained at the initial position;

[0046] When the detected rotation speed of the fan blade 22 is greater than or equal to a second preset value, the moving member 32 is controlled to remain in the extended position, and the protective member rotates relative to the fan blade 22;

[0047] When the detected rotation speed of the fan blade 22 is less than the first preset value, the moving member 32 is controlled to switch to the storage position, and the protective member remains in the initial position.

[0048] By adopting the above steps, the rotation speed of the fan blade 22 is detected. When the rotation speed of the fan blade 22 is detected to be greater than the first preset value and less than the second preset value, the first driving member 31 drives the moving member 32 to switch from the storage position to the extended position, so that the moving member 32 can contact with the external liquid to increase the resistance, reduce the rotation speed of the inner float 11, and the protective member on the fan blade 22 is maintained at the initial position. When the rotation speed of the fan blade 22 is detected to be greater than or equal to the second preset value, the second driving member drives the protective member 32 to remain in the extended position by controlling the moving member 32 to remain in the extended position. The protective member rotates relative to the wind blade 22, so that there is an angle between the protective member and the wind blade 22, which can further increase the resistance to the rotation of the wind blade 22, reduce the rotation speed of the frame 21 and the inner floating body 11, and avoid overloading the power generation device. When it is detected that the rotation speed of the wind blade 22 is less than the first preset value, the protective member is kept in the initial position by controlling the moving member 32 to switch to the storage position, thereby ensuring that the wind blade 22 can rotate and convert wind energy into electrical energy and store it in the power generation device, thereby improving the practicality and structural reliability of the floating vertical axis wind turbine.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0051] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A floating vertical axis wind turbine, characterized in that: The floating vertical axis wind turbine comprises: A floating body assembly (10) comprises an outer floating body (12) which is fixedly arranged and an inner floating body (11) which is rotatably arranged in the outer floating body (12); A power generation assembly (20) comprises a frame (21), a fan blade (22) and a power generation component, wherein the inner floating body (11) is connected to the frame (21), the fan blade (22) is arranged on the frame (21), and the power generation component is arranged between the inner floating body (11) and the outer floating body (12); The first protection component (30) comprises a first driving member (31) and a moving member (32), wherein the first driving member (31) is arranged in the inner floating body (11), and the moving member (32) is movably arranged along the radial direction of the inner floating body (11) and is located below the outer floating body (12), and the first driving member (31) is drivingly connected to the moving member (32) so that the moving member (32) has an extended position extending out of the inner floating body (11) and a stored position stored in the inner floating body (11), and when the moving member (32) is in the extended position, when the moving member (32) and the inner floating body (11) rotate synchronously, the moving member (32) contacts with the liquid outside the floating vertical axis fan to reduce the rotation speed of the inner floating body (11).

2. The floating vertical axis wind turbine according to claim 1, characterized in that: The inner float (11) is provided with a housing cavity for accommodating the movable member (32); a side wall of the inner float (11) is provided with a mounting through hole connected to the housing cavity; the movable member (32) can be inserted into the mounting through hole so that the movable member (32) can switch between the storage position and the extended position.

3. The floating vertical axis wind turbine according to claim 2, characterized in that: The first driving member (31) comprises a first hydraulic cylinder (311), the cylinder body of the first hydraulic cylinder (311) is arranged in the accommodating chamber, the piston rod of the first hydraulic cylinder (311) is connected to the moving member (32), and the piston rod of the first hydraulic cylinder (311) is movably arranged along the radial direction of the inner floating body (11); The moving member (32) comprises a moving plate (321), and a sealing member is provided between the moving plate (321) and the inner floating body (11) to seal the accommodating cavity.

4. The floating vertical axis wind turbine according to claim 3, characterized in that: The sealing member comprises a sealing ring, the sealing ring is arranged in the mounting through hole, and the movable plate (321) is inserted into the sealing ring; The first driving member (31) comprises two first hydraulic cylinders (311), the two first hydraulic cylinders (311) are respectively arranged at the upper and lower ends of the movable plate (321), and the piston rods of the two first hydraulic cylinders (311) are both connected to the movable plate (321).

5. The floating vertical axis wind turbine according to any one of claims 1 to 4, characterized in that: The first protection component (30) comprises a plurality of the first driving members (31) and a plurality of the moving members (32), wherein the plurality of the first driving members (31) are arranged at intervals along the circumference of the inner floating body (11), and the plurality of the first driving members (31) and the plurality of the moving members (32) are arranged in a one-to-one correspondence.

6. The floating vertical axis wind turbine according to any one of claims 1 to 4, characterized in that: A second protective component is arranged on the fan blade (22), and the second protective component comprises a second driving member and a protective member. The second driving member is arranged inside the fan blade (22), and the protective member is rotatably arranged on the fan blade (22). The second driving member is drivingly connected to the protective member, and drives the protective member to rotate relative to the fan blade (22), so that an angle is formed between the protective member and the fan blade (22), thereby reducing the rotation speed of the fan blade (22).

7. The floating vertical axis wind turbine according to claim 6, characterized in that: The second driving member comprises a second hydraulic cylinder, the protective member comprises a protective plate, a first side of the protective plate is rotatably arranged on the fan blade (22), and a piston rod of the second hydraulic cylinder is connected to a second side of the protective plate opposite to the first side, so that the angle exists between the protective plate and the fan blade (22).

8. The floating vertical axis wind turbine according to claim 6, characterized in that: The power generation component (20) comprises a plurality of fan blades (22), the plurality of fan blades (22) being arranged at intervals along the circumferential direction of the frame (21), and each of the fan blades (22) being provided with the second protection component; The power generation assembly (20) further comprises a plurality of blade supports (23), the first sides of the plurality of blade supports (23) being connected to the frame body (21), and the plurality of blade supports (23) and the plurality of fan blades (22) being arranged one-to-one on a second side of the blade support (23) opposite to the first side.

9. The floating vertical axis wind turbine according to claim 1, characterized in that: The power generation component comprises a rotor and a stator, wherein the rotor is arranged on the inner floating body (11), and the stator is arranged on the outer floating body (12). The outer floating body (12) is provided with a connecting hole, the inner floating body (11) is inserted into the connecting hole, the stator is arranged on the hole wall of the connecting hole, and the rotor is arranged on the outer wall of the inner floating body (11).

10. The floating vertical axis wind turbine according to claim 1, characterized in that: The floating vertical axis wind turbine further comprises a gravity anchor (41) and a mooring rope (42), wherein a first end of the mooring rope (42) is connected to the outer floating body (12), and a second end of the mooring rope (42) is connected to the gravity anchor (41).

11. A control method for a floating vertical axis wind turbine, characterized in that: For controlling the floating vertical axis wind turbine of claim 6 or 7, the control method comprises: Detecting the rotation speed of the fan blades (22); When the detected rotation speed of the fan blade (22) is greater than or equal to a first preset value and less than a second preset value, the moving member (32) is controlled to switch to an extended position, and the protective member is maintained at an initial position; When the detected rotation speed of the fan blade (22) is greater than or equal to a second preset value, the moving member (32) is controlled to remain in the extended position, and the protective member rotates relative to the fan blade (22); When the detected rotation speed of the fan blade (22) is less than a first preset value, the moving member (32) is controlled to switch to the storage position, and the protective member is maintained at the initial position.

Images