A wind power generation device using a horizontal axis wind turbine to assist a vertical axis wind turbine

Abstract

The application discloses a wind power generation device using a horizontal axis wind turbine to assist a vertical axis wind turbine, which comprises a vertical axis wind turbine, a horizontal axis wind turbine and a slide rail supporting device. The vertical axis wind turbine is used as a main structure, the horizontal axis wind turbine is vertically installed on the upper side of a horizontal supporting rod of the vertical axis wind turbine, the direction of the horizontal axis wind turbine is adjusted by a tail wing, and thus the horizontal axis wind turbine assisting device is formed. The slide rail supporting device is installed on the lower side of the horizontal supporting rod. The device uses the horizontal axis wind turbine to generate power under low wind speed, and uses the axial thrust generated when the horizontal axis wind turbine operates to assist the vertical axis wind turbine to start, so that the starting performance of the vertical axis wind turbine is improved. The resistance of the vertical axis wind turbine during stable operation is reduced by adjusting the direction of the horizontal axis wind turbine, the wind energy utilization efficiency of the vertical axis wind turbine is improved, and the wind energy is fully utilized.

Description

Technical Field

[0001] This invention relates to the field of wind power generation, specifically to a wind power generation device that utilizes a horizontal axis wind turbine to assist a vertical axis wind turbine. Background Technology

[0002] Currently, wind power generation devices are mainly divided into two types: horizontal axis wind turbines and vertical axis wind turbines. Vertical axis wind turbines have their rotation axis perpendicular to the direction of the incoming wind, accepting wind in all directions without the need for a yaw system. However, lift-type vertical axis wind turbines are more difficult to start from a static position and are not easy to start at low wind speeds, making them unsuitable for use in low-wind-speed areas. Existing solutions to improve the starting performance of vertical axis wind turbines combine lift and drag. To improve starting performance, drag-type blades are added to the turbine's shaft to assist in starting. However, when the tip speed of the lift blades is relatively high, the drag blades generate significant drag, reducing the wind turbine's wind energy utilization coefficient and resulting in wasted wind energy. If the starting performance of wind turbines can be improved while reducing the impact of auxiliary devices on the turbine's performance during stable operation, and wind energy can be effectively converted, the application areas of vertical axis wind turbines will be expanded. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention proposes a wind power generation device that uses a horizontal axis wind turbine to assist a vertical axis wind turbine, so as to solve the problems mentioned in the background art that it is not easy for vertical axis wind turbines to utilize low wind speed wind energy, it is difficult to start up at medium and low wind speeds, and the use of drag-type blades to improve start-up performance affects the stable operation performance of the wind turbine.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a wind power generation device using a horizontal axis wind turbine to assist a vertical axis wind turbine, comprising a vertical axis wind turbine, a horizontal axis wind turbine, and a slide rail support device. The rotating main shaft is vertically installed in the center of the wind turbine support. The generator is fixedly installed inside the wind turbine support and connected to the lower end of the rotating main shaft. One end of the horizontal support rod is fixed to the upper end of the rotating main shaft, and the other end of the horizontal support rod is equipped with the blades of the vertical axis wind turbine, thereby forming the main structure of the wind turbine device. The horizontal axis wind turbine support column is vertically installed on the upper side of the horizontal support rod, and the generator is mounted on the horizontal axis wind turbine via a rotating shaft. The top of the horizontal axis wind turbine support column allows it to rotate horizontally. The blades of the horizontal axis wind turbine are tightly integrated with the hub and connected to one end of the generator. The directional adjustment tail fin is installed at the other end of the generator, thus forming an auxiliary device for the horizontal axis wind turbine. The slide rail support device is installed on the lower side of the horizontal support rod and is located directly below the installation position of the horizontal axis wind turbine support column. The fixed seat is fixed to the lower side of the horizontal support rod. The upper end of the vertical support rod is connected to the fixed seat. The caster wheel is installed at the lower end of the vertical support rod. The grooved slide rail is installed on the same horizontal plane as the wind turbine bracket, and the caster wheel rolls in the grooved slide rail.

[0005] Compared with the prior art, the advantages of this invention are:

[0006] 1. This invention integrates a vertical axis wind turbine and a horizontal axis wind turbine. It is not simply a matter of piecing the two types of wind turbines together, but rather by installing the horizontal axis wind turbine on the horizontal support rod of the vertical axis wind turbine, combining the two devices together and reducing the space occupied.

[0007] 2. This invention enables horizontal axis wind turbines to generate electricity under low wind speed conditions, effectively utilizing wind energy at low wind speeds and expanding the applicable wind speed range of the wind turbine device.

[0008] 3. Under low to medium wind speed conditions, this invention utilizes the axial thrust generated by the horizontal axis wind turbine during operation to assist the vertical axis wind turbine in starting up, thereby improving the starting performance of the vertical axis wind turbine and enabling it to start up even under low to medium wind speed conditions.

[0009] 4. In this invention, when the vertical axis wind turbine is running stably, the rotation plane of the horizontal axis wind turbine will be adjusted to be perpendicular to the horizontal support rod, thereby reducing the windward area of ​​the horizontal axis wind turbine and reducing the resistance it experiences, thus minimizing its impact on the operation of the vertical axis wind turbine.

[0010] 4. The slide rail support device in this invention is used to support the weight of the horizontal axis wind turbine, reduce the deformation of the horizontal support rod of the vertical axis wind turbine, and improve the stability of the system.

[0011] 5. The size of the wind turbine used in this invention can be determined and selected according to the actual situation, and the ability to generate electricity even at low wind speeds makes the device more widely applicable. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the wind power generation device of the present invention;

[0013] Figure 2 This is a schematic diagram of the operation state of the wind power generation device under low wind speed in this invention;

[0014] Figure 3 This is a schematic diagram of the stable operation state of the wind power generation device of the present invention.

[0015] In the diagram: 1-1 Vertical axis wind turbine blade, 1-2 Horizontal support rod, 1-3 Rotating main shaft, 1-4 Generator, 1-5 Wind turbine bracket, 2-1 Horizontal axis wind turbine blade, 2-2 Hub, 2-3 Generator, 2-4 Horizontal axis wind turbine support column, 2-5 Directional adjustment tail fin, 3-1 Fixed base, 3-2 Vertical support rod, 3-3 Casters, 3-4 Grooved slide rail. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention.

[0017] Please see Figure 1 A wind power generation device utilizing a horizontal-axis wind turbine to assist a vertical-axis wind turbine includes a vertical-axis wind turbine, a horizontal-axis wind turbine, and a sliding rail support device. The rotating main shaft 1-3 is vertically mounted at the center of a wind turbine support 1-5. A generator 1-4 is fixedly installed inside the wind turbine support 1-5 and connected to the lower end of the rotating main shaft 1-3. One end of a horizontal support rod 1-2 is fixed to the upper end of the rotating main shaft 1-3, and the other end of the horizontal support rod 1-2 is fitted with a vertical-axis wind turbine blade 1-1, thus forming the main structure of the wind turbine device.

[0018] The horizontal axis wind turbine support column 2-4 is vertically installed on the upper side of the horizontal support rod 1-2. The generator 2-3 is installed on the top of the horizontal axis wind turbine support column 2-4 via a rotating shaft, allowing it to rotate horizontally. The horizontal axis wind turbine blade 2-1 is tightly integrated with the hub 2-2 and connected to one end of the generator 2-3. The direction adjustment tail fin 2-5 is installed on the other end of the generator 2-3. The orientation of the horizontal axis wind turbine will be controlled by the direction adjustment tail fin 2-5. Depending on the operating state of the wind turbine, the orientation of the horizontal axis wind turbine will be adjusted to different orientations by the direction adjustment tail fin.

[0019] The slide rail support device is installed on the lower side of the horizontal support rod 1-2, and is located directly below the installation position of the horizontal axis wind turbine support column 2-4. The fixing seat 3-1 is fixed to the lower side of the horizontal support rod 1-2. The upper end of the vertical support rod 3-2 is combined with the fixing seat 3-1. The universal wheel 3-3 is installed on the lower end of the vertical support rod 3-2. The grooved slide rail 3-4 and the wind turbine bracket 1-5 are installed on the same horizontal plane. The universal wheel 3-3 rolls in the grooved slide rail 3-4. The slide rail support device bears the weight of the horizontal axis wind turbine, reduces the deformation of the horizontal support rod of the vertical axis wind turbine during operation, and the circular grooved slide rail guides the movement direction of the universal wheel, improving the stability of the system.

[0020] Working principle: Please refer to Figure 2 The wind direction is perpendicular to the diagram, flowing from the outside in. At low wind speeds, the horizontal axis wind turbine adjusts its orientation using the direction-adjusting tail fin 2-5. On a plane perpendicular to the incoming wind, the horizontal axis wind turbine in the right half of the area adjusts its orientation using the direction-adjusting tail fin 2-5, making its rotation plane perpendicular to the incoming wind direction. The blades 2-1 of the horizontal axis wind turbine rotate, and the horizontal axis wind turbine starts up, converting wind energy into electrical energy. At the same time, the axial thrust generated by the horizontal axis wind turbine in the right half of the area will act as a booster to help the vertical axis wind turbine start up. If the horizontal axis wind turbine in the left half of the area were to operate, it would generate axial thrust that would be detrimental to the rotation and start-up of the vertical axis wind turbine. Therefore, the direction-adjusting tail fin 2-5 will adjust its rotation plane to be parallel to the incoming wind direction, thereby reducing the frontal area and reducing the resistance encountered by the vertical axis wind turbine during startup.

[0021] Within the medium wind speed range, the vertical axis wind turbine starts up under the axial thrust of the horizontal axis wind turbine and the lift generated by the blades 1-1 of the vertical axis wind turbine. The fixed seat 3-1 of the slide rail support device, the vertical support rod 3-2, and the caster 3-3 guided by the grooved slide rail 3-4 will perform circular motion together. At this time, the vertical axis wind turbine rotates at a low speed, and the horizontal axis wind turbine operates in the same manner as at low wind speeds. The plane of rotation of the horizontal axis wind turbine located in the right half of the wind tunnel is perpendicular to the incoming wind direction. If the plane of rotation of the horizontal axis wind turbine located in the left half of the wind tunnel is parallel to the incoming wind direction, the horizontal axis wind turbine continues to provide assistance to help the vertical axis wind turbine rotate.

[0022] Combination Figure 3 At this point, the vertical axis wind turbine has been started and is operating at a high tip speed. The horizontal axis wind turbine is then adjusted by the direction adjustment tail fin 2-5 to make the rotation plane of the horizontal axis wind turbine perpendicular to the horizontal support rod 1-2. This reduces the resistance experienced by the vertical axis wind turbine when it is operating at a high tip speed, reduces the impact of the horizontal axis wind turbine on the operation of the vertical axis wind turbine, improves wind energy utilization efficiency, and makes full use of wind energy.

[0023] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0024] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection claimed by the present invention.

Claims

1. A wind power generation device utilizing a horizontal-axis wind turbine to assist a vertical-axis wind turbine, comprising a vertical-axis wind turbine, a horizontal-axis wind turbine, and a slide rail support device, characterized in that: A rotating main shaft (1-3) is vertically mounted in the center of a wind turbine support (1-5). A generator main unit (1-4) is fixedly installed inside the wind turbine support (1-5) and connected to the lower end of the rotating main shaft (1-3). One end of a horizontal support rod (1-2) is fixed to the upper end of the rotating main shaft (1-3), and the other end of the horizontal support rod (1-2) is fitted with a vertical axis wind turbine blade (1-1), thus forming the main structure of the wind turbine device. A horizontal axis wind turbine support column (2-4) is vertically mounted on the horizontal axis... On the upper side of the support rod (1-2), the generator (2-3) of the horizontal axis wind turbine is mounted on the top of the horizontal axis wind turbine support column (2-4) via a rotating shaft, allowing it to rotate in the horizontal direction. The blade (2-1) of the horizontal axis wind turbine is tightly connected to the hub (2-2) and simultaneously connected to one end of the generator (2-3). The directional adjustment tail fin (2-5) is installed on the other end of the generator (2-3), thus forming an auxiliary device for the horizontal axis wind turbine. The slide rail support device is installed on the lower side of the horizontal support rod.

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