Wind power generation device

Abstract

The invention provides a wind power generation device. The wind power generation device comprises a base; the supporting rod is arranged on the base; the first generator set comprises a first connecting piece and a plurality of first fan blades, the first connecting piece is rotatably arranged on the supporting rod, and the multiple first fan blades are arranged on the periphery of the first connecting piece at intervals; the second generator set is located below the first generator set, the second generator set comprises a second connecting piece and a plurality of second fan blades, the second connecting piece is rotatably arranged on the base, and the second fan blades are arranged on the periphery of the second connecting piece at intervals; wherein the axis of the first connecting piece is arranged in the transverse direction, and the axis of the second connecting piece is arranged in the vertical direction. According to the technical scheme, the problem that in the prior art, when multiple wind generating sets are arranged, in order to avoid the situation that adjacent wind generating sets interfere with one another and affect the power generation efficiency, the distance between the multiple wind generating sets needs to be set to be large is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular, to a wind power generation device. Background Art

[0002] With the continuous development of wind power development, how to efficiently utilize the rich wind energy resources in the deep sea and far sea has gradually attracted attention. Among them, the horizontal axis generator set has become an excellent choice because of its relatively high wind energy utilization rate, relatively mature technology and process, and more extensive practical applications. However, the horizontal axis generator set is sensitive to the incoming wind conditions. In order to avoid mutual interference between adjacent units and affect the power generation efficiency, it is usually required that the unit spacing be designed large enough. However, this results in a large space being occupied when arranging multiple wind power generation units. Summary of the Invention

[0003] The main object of the present invention is to provide a wind power generation device to solve the problem in the related art that when setting multiple wind power generation units, in order to avoid mutual interference between adjacent units and affect the power generation efficiency, the spacing between multiple wind power generation units needs to be set large.

[0004] To achieve the above object, according to one aspect of the present invention, there is provided a wind power generation device, including: a base; a support rod disposed on the base; a first generator set, the first generator set including a first connecting member and a plurality of first fan blades, the first connecting member being rotatably disposed on the support rod, and the plurality of first fan blades being spaced apart and disposed on the outer periphery of the first connecting member; a second generator set located below the first generator set, the second generator set including a second connecting member and a plurality of second fan blades, the second connecting member being rotatably disposed on the base, and the plurality of second fan blades being spaced apart and disposed on the outer periphery of the second connecting member; wherein, the axis of the first connecting member is disposed in the horizontal direction, and the axis of the second connecting member is disposed in the vertical direction.

[0005] Further, the distance between the top of the second fan blade and the top surface of the base is a first distance H1, the distance between the axis of the first connecting member and the top surface of the base is a second distance H2, and the ratio of the first distance H1 to the second distance H2 satisfies: 0.7 ≤ H1 / H2 ≤ 0.98.

[0006] Further, the ratio of the first distance H1 to the second distance H2 satisfies: 0.85 ≤ H1 / H2 ≤ 0.95.

[0007] Further, the included angle between the axis of the first connecting member and the axis of the second connecting member is between 70° and 120°.

[0008] Further, the included angle between the axis of the first connecting member and the axis of the second connecting member is between 80° and 110°.

[0009] Further, there are multiple second power generation sets, and the axes of the second connecting members of the multiple second power generation sets are parallel and spaced apart.

[0010] Further, the base includes a floating platform.

[0011] Further, the floating platform includes a support structure and a plurality of floating barrels, and the plurality of floating barrels are spaced apart on the outer periphery of the support structure.

[0012] Further, the second blade includes a vertical plate.

[0013] Further, the second power generation set further includes a plurality of connecting rods, and at least one connecting rod is arranged between each vertical plate and the second connecting member.

[0014] Applying the technical solution of the present invention, the wind power generation device includes a base, a support rod arranged on the base, a first power generation set, and a second power generation set arranged below the first power generation set. The first power generation set includes a first connecting member rotatably arranged on the support rod and a plurality of first blades spaced apart on the outer periphery of the first connecting member. The second power generation set includes a second connecting member rotatably arranged on the base and a plurality of second blades spaced apart on the outer periphery of the second connecting member. The axis of the first connecting member is arranged in the transverse direction, and the axis of the second connecting member is arranged in the vertical direction. Through the above settings, when the first blade rotates, it can drive the first connecting member to rotate, and thus power generation can be achieved. When the second blade rotates, it can drive the second connecting member to rotate, and thus power generation can be achieved. The second power generation set can improve the inflow condition of the air flow of the first power generation set, and thus can increase the power generation amount of the first power generation set. Moreover, with such a setting, when multiple wind power generation devices are arranged, the distance between the multiple wind power generation devices can be reduced, which can not only improve the ability of the wind farm to capture and utilize wind energy, but also reduce the construction cost and operation cost of the wind farm. Therefore, the technical solution of this application effectively solves the problem in the related art that when multiple wind power generation sets are arranged, in order to avoid mutual interference between adjacent sets and affect the power generation efficiency, the distance between the multiple wind power generation sets needs to be set relatively large. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The specification drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0016] Figure 1 shows a three-dimensional structural schematic diagram of an embodiment of the wind power generation device according to the present invention;

[0017] Figure 2 shows Figure 1 a three-dimensional structural schematic diagram of another perspective of the wind power generation device.

[0018] Among them, the above-mentioned drawings include the following reference numerals:

[0019] 10, base; 11, floating platform; 111, support structure; 112, buoy; 20, support rod; 30, first power generation unit; 31, first connecting member; 32, first blade; 40, second power generation unit; 41, second connecting member; 42, second blade; 421, vertical plate; 43, connecting rod. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a 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 in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0021] It should be noted that the terms used here are only for describing the specific implementation manners and are not intended to limit the exemplary embodiments according to the present application. As used here, unless otherwise clearly specified in the context, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0022] Unless otherwise specifically stated, the relative arrangements, numerical expressions, and numerical values of the components and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that: similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0023] Such as Figure 1 and Figure 2As shown in the figure, the wind power generation device of this embodiment includes: a base 10, a support rod 20, a first generator set 30, and a second generator set 40. The support rod 20 is arranged on the base 10. The first generator set 30 includes a first connecting member 31 and a plurality of first fan blades 32. The first connecting member 31 is rotatably arranged on the support rod 20, and the plurality of first fan blades 32 are arranged at intervals on the outer periphery of the first connecting member 31. The second generator set 40 is located below the first generator set 30. The second generator set 40 includes a second connecting member 41 and a plurality of second fan blades 42. The second connecting member 41 is rotatably arranged on the base 10, and the plurality of second fan blades 42 are arranged at intervals on the outer periphery of the second connecting member 41. Among them, the axis of the first connecting member 31 is arranged in the horizontal direction, and the axis of the second connecting member 41 is arranged in the vertical direction.

[0024] Applying the technical solution of this embodiment, the wind power generation device includes a base 10, a support rod 20 arranged on the base 10, a first generator set 30, and a second generator set 40 arranged below the first generator set 30. The first generator set 30 includes a first connecting member 31 rotatably arranged on the support rod 20 and a plurality of first fan blades 32 arranged at intervals on the outer periphery of the first connecting member 31. The second generator set 40 includes a second connecting member 41 rotatably arranged on the base 10 and a plurality of second fan blades 42 arranged at intervals on the outer periphery of the second connecting member 41. The axis of the first connecting member 31 is arranged in the horizontal direction, and the axis of the second connecting member 41 is arranged in the vertical direction. Through the above settings, when the first fan blades 32 rotate, they can drive the first connecting member 31 to rotate, and thus power generation can be achieved. When the second fan blades 42 rotate, they can drive the second connecting member 41 to rotate, and thus power generation can be achieved. The second generator set 40 can improve the inflow condition of the air flow of the first generator set 30, and thus can increase the power generation amount of the first generator set 30. Moreover, with such a setting, when multiple wind power generation devices are arranged, the distance between multiple wind power generation devices can be reduced, which can not only improve the ability of the wind farm to capture and utilize wind energy, but also reduce the construction cost and operation cost of the wind farm. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that when multiple wind turbine generator sets are arranged, in order to avoid mutual interference between adjacent units and affect the power generation efficiency, the distance between multiple wind turbine generator sets needs to be set relatively large.

[0025] The axis of the first connecting member 31 being arranged in the horizontal direction means that the included angle between the axis of the first connecting member 31 and the horizontal direction is between 0° and 5°. Specifically, it can be 0°, 1°, 3°, or 5°.

[0026] The axis of the second connecting member 41 being arranged in the vertical direction means that the included angle between the axis of the second connecting member 41 and the vertical direction is between 0° and 5°. Specifically, it can be 0°, 2°, 3°, or 5°.

[0027] The first connecting member 31 includes a first connecting shaft.

[0028] The second connecting member 41 includes a second connecting shaft.

[0029] As Figure 2 shown, in this embodiment, the distance between the top of the second blade 42 and the top surface of the base 10 is the first distance H1, the distance between the axis of the first connecting member 31 and the top surface of the base 10 is the second distance H2, and the ratio of the first distance H1 to the second distance H2 satisfies: 0.7 ≤ H1 / H2 ≤ 0.98. Through the above settings, the inflow condition of the air flow of the first generator set 30 can be further improved, so that the power generation of the first generator set 30 can be increased. By adjusting this ratio, the structural layout of the wind power generation device can be optimized, the mutual interference between the upstream wind power generation device and the downstream wind power generation device can be reduced, and the overall power generation efficiency can be improved.

[0030] The ratio of the first distance H1 to the second distance H2 can be 0.7, 0.77, 0.79, 0.86, 0.9, 0.95 or 0.98.

[0031] In this embodiment, the ratio of the first distance H1 to the second distance H2 is 0.9.

[0032] As Figure 2 shown, in this embodiment, the ratio of the first distance H1 to the second distance H2 satisfies: 0.85 ≤ H1 / H2 ≤ 0.95. By setting a more precise ratio range, the waste of wind energy can be further reduced, and the energy utilization efficiency of the wind power generation device can be improved.

[0033] As Figure 1 shown, in this embodiment, the included angle between the axis of the first connecting member 31 and the axis of the second connecting member 41 is between 70° and 120°. This setting can ensure the efficient operation of the first generator set 30 and the second generator set 40, which is beneficial to improving the power generation efficiency of the first generator set 30 and the second generator set 40.

[0034] The included angle between the axis of the first connecting member 31 and the axis of the second connecting member 41 can be 70°, 77°, 80°, 83, 90°, 95°, 110° or 115°.

[0035] In this embodiment, the included angle between the axis of the first connecting member 31 and the axis of the second connecting member 41 is 90°.

[0036] As Figure 1As shown, in this embodiment, the angle between the axis of the first connecting member 31 and the axis of the second connecting member 41 is between 80° and 110°. Through the above settings, it is convenient for the arrangement of the second generator set 40 and enables the second generator set 40 to more effectively improve the inflow condition of the first generator set 30, thereby enhancing the power generation efficiency of the first generator set 30. By setting the angle range, the wind energy capture efficiency of the wind power generation device can be further improved, and wind energy loss can be reduced. By more strictly controlling the axis angle, the wind energy capture angle of the device can be adjusted more precisely, reducing the mutual influence between the first generator set and the second generator set and improving the power generation efficiency.

[0037] As Figure 2 shown, in this embodiment, there are multiple second generator sets 40, and the axes of the second connecting members 41 of the multiple second generator sets 40 are parallel and spaced apart. Through the above settings, the wind energy resources can be fully utilized, and the power generation capacity of the wind power generation device can be improved.

[0038] In this embodiment, there are two second generator sets 40.

[0039] The axes of the two second connecting members 41 and the axis of the support rod 20 form a triangle.

[0040] The axes of the two second connecting members 41 are located in a first preset plane, and the axis of the first connecting member 31 is perpendicular to the preset plane.

[0041] The intersection point of the axis of the first connecting member 31 and the first preset plane is a preset intersection point.

[0042] The preset intersection point and the axis of the first connecting member 31 are both located in a second preset plane.

[0043] The distance between the axis of the first second connecting member 41 and the second preset plane is a third distance, and the distance between the axis of the second second connecting member 41 and the second preset plane is a fourth distance.

[0044] The distance between the axes of the two second connecting members 41 is a fifth distance. The fifth distance is equal to the sum of the third distance and the fourth distance.

[0045] The ratio of the fourth distance to the fifth distance is between 0.4 and 0.6.

[0046] The ratio of the fourth distance to the fifth distance can be 0.4, 0.44, 0.5, 0.53, or 0.6.

[0047] In this embodiment, the ratio of the fourth distance to the fifth distance is 0.5. The two second generator sets are symmetrically arranged, which can ensure the overall structural stability of the wind power generation device.

[0048] As Figure 1 andFigure 2 As shown, in this embodiment, the base 10 includes a floating platform 11. By providing the floating platform 11, the wind power generation device can float on the sea surface.

[0049] As Figure 1 and Figure 2 shown, in this embodiment, the floating platform 11 includes a support structure 111 and a plurality of pontoons 112. The plurality of pontoons 112 are arranged at intervals on the outer periphery of the support structure 111. The support structure 111 can support the plurality of pontoons 112. By providing the plurality of pontoons 112, the floating platform 11 can float on the sea surface.

[0050] The support structure 111 is connected to the seabed through a connecting cable.

[0051] There are three pontoons 112. The three pontoons 112 are arranged in a triangle.

[0052] The first connecting member 31 is provided on one pontoon 112, and two second connecting members 41 are respectively provided on the other two pontoons 112.

[0053] The three pontoons 112 are respectively the first pontoon, the second pontoon and the third pontoon. The first connecting member 31 is provided on the first pontoon in a liftable manner. The first second connecting member 41 is provided on the second pontoon in a liftable manner. The second second connecting member 41 is provided on the third pontoon.

[0054] The wind power generation device further includes a first jacking structure, a second jacking structure and a third jacking structure.

[0055] The support rod includes a first rod section and a second rod section. The first rod section is connected to the first pontoon. A guide hole is provided in the first rod section. The first end of the second rod section is inserted into the guide hole and is in guiding cooperation with the guide hole. The second end of the second rod section is connected to the first connecting member.

[0056] The first jacking structure is provided between the first rod section and the second rod section to move the second rod section toward or away from the first pontoon to realize the lifting of the first connecting member.

[0057] The second jacking structure is provided between the first pontoon and the first second connecting member.

[0058] The third jacking structure is provided between the second pontoon and the second second connecting member.

[0059] The first jacking structure includes a plurality of jacks.

[0060] The second jacking structure includes a plurality of jacks.

[0061] The third jacking structure includes a plurality of jacks.

[0062] By setting the first lifting structure and the second lifting structure, the height of the second generating set 40 can be adjusted, so that in bad weather such as typhoons, the height of the second generating set can be reduced, thereby reducing the overall center of the wind power generation device, making the position of the wind power generation device more stable. It is also possible to adjust the height of the second generating set according to the air flow conditions to facilitate the improvement of the power generation efficiency of the first generating set.

[0063] As Figure 1 and Figure 2 shown, in this embodiment, the second blade 42 includes a vertical plate 421. The air flow can blow the vertical plate 421, and then the vertical plate 421 can drive the second connecting member 41 to rotate, and then power generation can be achieved.

[0064] As Figure 1 and Figure 2 shown, in this embodiment, the second generating set 40 further includes a plurality of connecting rods 43, and at least one connecting rod 43 is arranged between each vertical plate 421 and the second connecting member 41. The connecting rod 43 can connect the vertical plate 421 and the second connecting member 41, so that when the vertical plate 421 rotates, it can drive the second connecting member 41 to rotate through the connecting rod 43.

[0065] The first generating set 30 is a horizontal axis unit, and the second generating set 40 is a vertical axis unit. The vertical axis unit has better low wind speed performance, can generate electricity under lower wind speeds, and at the same time has a lower center of gravity and avoids increasing the risk of platform overturning.

[0066] This embodiment provides an offshore floating multi-unit wind power generation platform. By installing the second generating set 40 upstream of the first generating set 30, the incoming flow condition is improved, the power generation amount is increased, the spacing of the wind power generation devices is reduced, while improving the wind energy capture and utilization ability of the wind farm, the construction cost and operation and maintenance difficulty of the wind farm are reduced.

[0067] To avoid the influence of adjacent wind power generation devices on the power generation efficiency, it is usually required that the spacing of the wind power generation devices be designed large enough, which leads to the need to occupy a larger geographical space, resulting in a significant increase in construction cost and operation and maintenance difficulty. By installing the second generating set 40, the spacing of the wind power generation devices can be reduced.

[0068] The wind power generation device of this embodiment improves the incoming flow condition by installing the second generating set 40 upstream of the first generating set 30, can accelerate the wake of the upstream wind power generation device to recover to the flow state suitable for the downstream wind power generation device to generate electricity, and can effectively increase the power generation amount of the downstream wind power generation device. At the same time, the spacing of the wind power generation devices can be reduced. Under the condition of the same capacity, the occupied space of the wind farm can be reduced and the construction cost can be reduced. In addition, the second generating set 40 is less sensitive to the incoming flow condition and can generate electricity synchronously, thereby improving the overall wind energy capture ability of the wind farm.

[0069] The first generator set 30 is the main wind energy utilization device of the wind power generation device, which is used to capture mechanical energy and convert it into electrical energy.

[0070] The installation direction of the first generator set 30 is facing the main wind direction.

[0071] The second generator set 40 is an auxiliary wind energy utilization device.

[0072] The function of the two second generator sets 40 is to improve the inflow condition of the first generator set 30 and assist the first generator set 30 to increase the power generation.

[0073] Another function of the two second generator sets 40 is to synchronously capture mechanical energy and convert it into electrical energy, so as to increase the overall wind energy capture of the power generation platform.

[0074] Both of the two second generator sets 40 are selected as lift-type units.

[0075] The floating body platform 11 is composed of a floating drum 112 and a corresponding support structure 111. The floating drum 112 is used to provide support for the first generator set 30 and the second generator set 40, and the support structure 111 is used to maintain the support strength and stability of the system.

[0076] In the wind power generation device of this embodiment, a second generator set 40 is installed upstream of the first generator set 30. By controlling the height of the second generator set 40, its inflow condition can be improved, the wake influence of the upstream wind power generation device can be weakened, and the power generation of the downstream unit can be increased.

[0077] The wind power generation device of this embodiment can reduce the spacing between multiple wind power generation devices, reduce the occupied space of the wind farm, and reduce the construction cost and operation and maintenance cost of the wind farm.

[0078] The second generator set 40 of the wind power generation device of this embodiment can generate electricity synchronously, improving the overall wind energy capture ability of the wind farm.

[0079] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0080] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations of the spatial relative descriptions used herein will be made.

[0081] 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. Without further statement, the above terms have no special meaning and thus should not be construed as limiting the scope of protection of the present invention.

[0082] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A wind power generation device, characterized in that: include: Base (10); A support rod (20) is arranged on the base (10); A first generator set (30), the first generator set (30) comprising a first connecting member (31) and a plurality of first blades (32), the first connecting member (31) being rotatably disposed on the support rod (20), and the plurality of first blades (32) being spaced apart and arranged on the outer periphery of the first connecting member (31); a second generator set (40) located below the first generator set (30), the second generator set (40) comprising a second connecting member (41) and a plurality of second blades (42), the second connecting member (41) being rotatably disposed on the base (10), and the plurality of second blades (42) being spaced apart on the outer periphery of the second connecting member (41); Wherein, the axis of the first connecting member (31) is arranged along the transverse direction, and the axis of the second connecting member (41) is arranged along the vertical direction.

2. The wind power generation device according to claim 1, characterized in that: The distance between the top of the second fan blade (42) and the top surface of the base (10) is a first distance H1, the distance between the axis of the first connecting member (31) and the top surface of the base (10) is a second distance H2, and the ratio of the first distance H1 to the second distance H2 satisfies: 0.7≤H1 / H2≤0.

98.

3. The wind power generation device according to claim 2, characterized in that: The ratio of the first distance H1 to the second distance H2 satisfies: 0.85≤H1 / H2≤0.

95.

4. The wind power generation device according to claim 1, characterized in that: The angle between the axis of the first connecting member (31) and the axis of the second connecting member (41) is between 70° and 120°.

5. The wind power generation device according to claim 4, characterized in that: The angle between the axis of the first connecting member (31) and the axis of the second connecting member (41) is between 80° and 110°.

6. The wind power generation device according to any one of claims 1 to 5, characterized in that: There are a plurality of second generator sets (40), and the axes of the second connecting members (41) of the plurality of second generator sets (40) are parallel and spaced apart.

7. The wind power generation device according to any one of claims 1 to 5, characterized in that: The base (10) comprises a floating platform (11).

8. The wind power generation device according to claim 7, characterized in that: The floating platform (11) comprises a supporting structure (111) and a plurality of buoys (112), wherein the plurality of buoys (112) are arranged at intervals on the periphery of the supporting structure (111).

9. The wind power generation device according to any one of claims 1 to 5, characterized in that: The second fan blade (42) includes a vertical plate (421).

10. The wind power generation device according to claim 9, characterized in that: The second generator set (40) further comprises a plurality of connecting rods (43), and at least one connecting rod (43) is arranged between each of the vertical plates (421) and the second connecting member (41).

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