Wind power and gravitational potential energy complementary power generation system

Abstract

The invention relates to a wind power and gravitational potential energy complementary power generation system which comprises a wind power generation assembly, a gravitational potential energy power generation assembly and a power generation-electric all-in-one machine, the wind power generation assembly is used for converting wind energy into electric energy, and the gravitational potential energy power generation assembly comprises a rotatable gravity power generation box; an inner cavity used for containing liquid is formed in the gravity power generation box, the inner cavity comprises a first cavity body, a second cavity body and a third cavity body which are sequentially arranged from bottom to top, the cross sectional area of the second cavity body is smaller than that of the first cavity body and that of the third cavity body, and the wind power generation assembly is electrically connected with the power generation-electric integrated machine. The gravitational potential energy power generation assembly is in transmission connection with a driving shaft of the power generation-electric all-in-one machine. According to the wind power and gravitational potential energy complementary power generation system, relatively stable power output can be kept under the condition that the air volume changes, the impact on a power grid is reduced, and the reliability of power supply is improved.

Description

Technical Field

[0001] This invention relates to the field of power generation equipment technology, and in particular to a wind power and gravitational potential energy complementary power generation system. Background Technology

[0002] Wind power generation and gravitational potential energy generation are two different renewable energy technologies. They each utilize energy from nature to generate electricity. Wind power generation is a technology that uses wind energy to convert into electrical energy. It captures the kinetic energy in the wind through a wind turbine and converts it into mechanical energy, which is then converted into electrical energy by a generator. Gravitational potential energy generation is a technology that uses the potential energy generated by an object under the action of gravity to convert it into mechanical energy, and then into electrical energy.

[0003] Existing wind power generation systems rely on changes in wind speed, which is inherently unstable. As a result, wind power output is intermittent, and when wind speeds are low, wind turbines may not be able to generate enough electricity. Existing gravitational potential energy generation systems have limited energy storage capacity. Once the stored potential energy is depleted, it needs to be replenished, which requires external power. Without a stable power source, the system cannot operate continuously. Summary of the Invention

[0004] The purpose of this invention is to provide a wind power and gravitational potential energy complementary power generation system, so as to provide a relatively stable power supply and improve the reliability of the power supply.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A wind power and gravitational potential energy complementary power generation system includes:

[0007] Wind power generation components;

[0008] A gravitational potential energy power generation component includes a rotatable gravity power generation box, the gravity power generation box having an inner cavity for holding liquid, the inner cavity including a first cavity, a second cavity and a third cavity arranged sequentially from bottom to top, the cross-sectional area of ​​the second cavity being smaller than the cross-sectional areas of the first cavity and the third cavity;

[0009] The generator-motor integrated machine is provided, wherein the wind power generation component is electrically connected to the generator-motor integrated machine, and the gravitational potential energy generation component is drive-connected to the drive shaft of the generator-motor integrated machine.

[0010] In one embodiment of this application, the gravitational potential energy power generation component further includes a rotating base, the gravity power generation box is fixed to the rotating base, and the gravity power generation box is connected to the drive shaft of the power generation-electric integrated machine through the rotating base. At least three pulleys are evenly distributed around the bottom of the rotating base in a circumferential direction.

[0011] In one embodiment of this application, a gear ring is provided on the outer peripheral surface of the rotating base, and a gear is provided on the drive shaft of the generator-electric integrated machine, with the gear ring meshing with the gear.

[0012] In one embodiment of this application, the wind power and gravitational potential energy complementary power generation system further includes a fixed base, the gravitational potential energy power generation component is disposed on the fixed base, the fixed base is provided with an annular guide rail, and the rotating base is coaxial with the annular guide rail and rotatably disposed on the annular guide rail.

[0013] In one embodiment of this application, the fixed base is provided with a support shaft coaxial with the annular guide rail. The support shaft passes through the rotating base and the gravity power generation box, and the support shaft is rotatably engaged with the rotating base and the gravity power generation box respectively.

[0014] In one embodiment of this application, a first annular guide groove is provided on the circumferential cavity wall of the first cavity, and an even number of first spheres are rotatably embedded in the first annular guide groove;

[0015] And / or, the circumferential cavity wall of the third cavity is provided with a second annular guide groove, and an even number of second spheres are rotatably embedded in the second annular guide groove.

[0016] In one embodiment of this application, the first annular guide groove is disposed at the end of the first cavity away from the second cavity, and / or the second annular guide groove is disposed at the end of the third cavity away from the second cavity.

[0017] In one embodiment of this application, the gravity power generation box is provided with a water inlet, and a removable sealing plug is provided at the water inlet.

[0018] In one embodiment of this application, the wind power generation component includes:

[0019] Tower;

[0020] A wind turbine is mounted on top of the tower and is electrically connected to the generator-motor integrated machine.

[0021] The blades are connected to the drive shaft of the wind turbine.

[0022] In one embodiment of this application, a reinforcing support member is provided at the bottom of the tower.

[0023] As can be seen from the above technical solution, the present invention discloses a wind power and gravitational potential energy complementary power generation system. The wind power and gravitational potential energy complementary power generation system includes a wind power generation component, a gravitational potential energy generation component, and a generator-motor integrated machine. The wind power generation component is used to convert wind energy into electrical energy. The gravitational potential energy generation component includes a rotatable gravity power generation box. The gravity power generation box is provided with an inner cavity for holding liquid. The inner cavity includes a first cavity, a second cavity, and a third cavity arranged sequentially from bottom to top. The cross-sectional area of ​​the second cavity is smaller than the cross-sectional areas of the first cavity and the third cavity. The wind power generation component is electrically connected to the generator-motor integrated machine, and the gravitational potential energy generation component is drive-connected to the drive shaft of the generator-motor integrated machine.

[0024] When wind energy is abundant, a portion of the large amount of electricity generated by the wind turbine is directly supplied to the outside world, while the other portion is used by the generator-motor integrated unit to power the gravitational potential energy generator. In this case, the generator-motor integrated unit acts as an electric motor, which drives the gravity generator box of the gravitational potential energy generator to rotate. As the gravity generator box rotates, the liquid inside the gravity generator box is raised to a high level, storing gravitational potential energy. When the wind speed is low, the wind turbine cannot convert enough electrical energy to power the generator-motor integrated unit. At this time, the generator-motor integrated unit transforms into a generator, and the gravitational potential energy generated by raising the liquid level in the gravity generator box is released to continue driving the drive shaft of the generator-motor integrated unit to rotate, thereby realizing the generation of electricity to the outside world.

[0025] It is evident that the aforementioned wind power and gravitational potential energy complementary power generation system can maintain a relatively stable power output under varying wind volume conditions, reducing the impact on the power grid and improving the reliability of power supply. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the wind and gravitational potential energy complementary power generation system provided in an embodiment of the present invention;

[0028] Figure 2 A partial exploded cross-sectional view of a wind power and gravitational potential energy complementary power generation system provided in an embodiment of the present invention;

[0029] Figure 3 for Figure 2 A magnified view of part A in the diagram;

[0030] Figure 4 This is a partial cross-sectional view of a wind power and gravity potential energy complementary power generation system provided in an embodiment of the present invention.

[0031] In the picture:

[0032] 1 is a fixed base; 2 is a tower; 3 is a wind turbine; 4 is a hub; 5 is the drive shaft of the wind turbine; 6 is a blade; 7 is a supporting shaft; 8 is a rotating base; 9 is a bushing; 10 is a gravity generator box; 1001 is the first cavity; 1002 is the second cavity; 1003 is the third cavity; 11 is the second annular guide groove; 12 is the second sphere; 13 is an annular guide rail; 14 is a pulley; 15 is a gear ring; 16 is a gear; 17 is a bracket; 18 is a generator-motor integrated machine; 19 is a reinforcing support component; 20 is a sealing plug; 21 is the first annular guide groove; 22 is the first sphere. Detailed Implementation

[0033] The core of this invention is to provide a wind power and gravity potential energy complementary power generation system. The structural design of this wind power and gravity potential energy complementary power generation system enables it to provide a relatively stable power supply and improve the reliability of the power supply.

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1 , Figure 2 and Figure 4 , Figure 1 This is a schematic diagram of the wind power and gravitational potential energy complementary power generation system provided in an embodiment of the present invention. Figure 2 This is a partial exploded cross-sectional view of a wind power and gravitational potential energy complementary power generation system provided in an embodiment of the present invention. Figure 3 This is a partial cross-sectional view of a wind power and gravitational potential energy complementary power generation system provided in an embodiment of the present invention.

[0036] This invention discloses a wind power and gravity potential energy complementary power generation system, which includes a wind power generation component, a gravity potential energy generation component, and a generator-motor integrated machine 18.

[0037] The wind power generation component is used to convert wind energy into electrical energy. The gravity potential energy generation component includes a rotatable gravity power generation box 10. The gravity power generation box 10 has an inner cavity for holding liquid. The inner cavity includes a first cavity 1001, a second cavity 1002, and a third cavity 1003 arranged sequentially from bottom to top. The cross-sectional area of ​​the second cavity 1002 is smaller than the cross-sectional areas of the first cavity 1001 and the third cavity 1003. The cross-sectional areas of the first cavity 1001 and the third cavity 1003 can be the same or different. By making the cross-sectional area of ​​the second cavity 1002 smaller than the cross-sectional areas of the first cavity 1001 and the third cavity 1003, the inner cavity of the gravity power generation box 10 is formed into a dumbbell shape with large ends and a small middle.

[0038] The cross-sectional area of ​​the gravity power generation box 10 refers to the area of ​​the shape formed by the intersection of the gravity power generation box 10 and the plane perpendicular to the rotation axis of the gravity power generation box 10. In this application, in order to ensure that the liquid level can be smoothly raised, the cross-sectional shape of the gravity power generation box 10 is circular. The wind power generation component is electrically connected to the generator-motor integrated machine 18, and the gravity potential energy generation component is drive-connected to the drive shaft of the generator-motor integrated machine 18.

[0039] When wind energy is abundant, i.e. when wind speed is high, a portion of the large amount of electricity generated by the wind power generation components is directly output to supply power, while the other portion is used by the generator-motor integrated unit 18 to power the gravitational potential energy generation components. At this time, the generator-motor integrated unit 18 is an electric motor, which drives the gravity power generation box 10 of the gravity potential energy generation components to rotate. As the gravity power generation box 10 rotates, the liquid inside the gravity power generation box 10 is raised to a high level to store gravitational potential energy.

[0040] When wind energy is insufficient, i.e. when the wind speed is low, the wind power generation components cannot convert enough electrical energy to power the generator-motor integrated machine 18. At this time, the generator-motor integrated machine 18 transforms into a generator, and the gravity power generation box 10 releases the gravitational potential energy generated by raising the liquid level to continue driving the drive shaft of the generator-motor integrated machine 18 to rotate, thereby realizing external power generation.

[0041] Compared with the prior art, the wind and gravitational potential energy complementary power generation system provided by the embodiments of the present invention can maintain a relatively stable power output under the condition of wind volume changes, reduce the impact on the power grid, and improve the reliability of power supply.

[0042] The gravity power generation box 10 can be rotated in various ways. For example, a pulley 14, a slide rail, or other rotating support structure can be installed at the bottom of the gravity power generation box 10. Alternatively, the gravity power generation box 10 can be mounted on a rotating shaft. Or, a rotating support structure can be installed below the gravity power generation box 10, and a pulley 14, a slide rail, or other rotating support structure can be installed on the rotating support structure.

[0043] Specifically, such as Figures 1 to 4 As shown, in one specific embodiment of this application, the gravitational potential energy power generation component further includes a rotating base 8, and a gravity power generation box 10 is fixed to the rotating base 8, that is, the gravity power generation box 10 and the rotating base 8 are relatively fixed and do not rotate relative to each other. The gravity power generation box 10 is connected to the drive shaft of the generator-motor integrated machine 18 via the rotating base 8. At least three pulleys 14 are evenly distributed circumferentially at the bottom of the rotating base 8. Figure 3 As shown, at least three pulleys 14 can provide stable support for the rotating base 8 and the gravity power generation box 10 thereon.

[0044] like Figure 2 As shown, a groove is provided on the upper surface of the rotating base 8, and the bottom of the gravity generator box 10 is embedded in the groove. Even if the rotating base 8 is sleeved on the bottom of the gravity generator box 10 through the groove, the stability of the cooperation between the gravity generator box 10 and the rotating base 8 can be improved.

[0045] Alternatively, a groove can be provided at the bottom of the gravity power generation box 10 so that the bottom of the gravity power generation box 10 is fitted onto the rotating base 8 through the groove.

[0046] Furthermore, to prevent relative rotation between the gravity generator box 10 and the rotating base 8, a limiting protrusion can be provided on one of the mating surfaces of the rotating base 8 and the gravity generator box 10, and a limiting groove can be provided on the other. The relative rotation between the two is prevented by the mating of the limiting protrusion and the limiting groove.

[0047] Specifically, Figure 2 In the embodiment shown, a groove is provided on the upper surface of the rotating base 8, and the bottom of the gravity generator box 10 is embedded in the groove. A limiting protrusion can be provided on the circumferential groove wall of the groove, and a limiting groove can be provided on the circumferential outer wall of the bottom of the gravity generator box 10. Alternatively, the opposite can be true: a limiting groove can be provided on the circumferential groove wall of the groove, and a limiting protrusion can be provided on the circumferential outer wall of the bottom of the gravity generator box 10.

[0048] In this application, as Figure 1 As shown, the transmission between the rotating base 8 and the drive shaft of the generator-electric integrated unit 18 is achieved through a gear 16 mechanism. Specifically, a gear ring 15 is provided on the outer circumference of the rotating base 8, and a gear 16 is provided on the drive shaft of the generator-electric integrated unit 18. The gear ring 15 meshes with the gear 16. The number of teeth on the gear ring 15 is much greater than the number of teeth on the gear 16. Therefore, when the generator-electric integrated unit 18 drives the rotating base 8 as a motor, the gear 16 has fewer teeth and the gear ring 15 has more teeth, which can achieve the effect of deceleration and torque increase, making it easier to drive the gravity generator box 10 and the rotating base 8 to rotate. When the generator-electric integrated unit 18 is driven by the rotating base 8 as a generator, it can achieve the effect of speed increase and torque reduction, making the drive shaft of the generator-electric integrated unit 18 rotate faster.

[0049] Of course, other gears can be set between the gear ring 15 and the gear 16 on the drive shaft of the generator-electric integrated machine 18 as needed. That is, the gear ring 15 meshes with the gear 16 on the drive shaft of the generator-electric integrated machine 18 through other gears. This is not limited here.

[0050] To facilitate the arrangement of the generator-motor integrated unit 18, in one embodiment of this application, a bracket 17 is also included. The bracket 17 is mounted above the gear 16, the generator-motor integrated unit 18 is installed on the bracket 17, and the drive shaft of the generator-motor integrated unit 18 passes through the bracket 17 and is connected to the gear 16.

[0051] like Figure 1 , Figure 2 and Figure 4 As shown, the wind power and gravitational potential energy complementary power generation system also includes a fixed base 1, on which the gravitational potential energy power generation component is mounted. The fixed base 1 is provided with an annular guide rail 13, which can be an annular groove or an annular boss. The rotating base 8 is coaxial with the annular guide rail 13 and rotatably mounted on the annular guide rail 13. By setting the annular guide rail 13, the deviation generated by the rotating base 8 during rotation can be reduced, and the rotation accuracy can be improved.

[0052] Please see Figure 2 and Figure 3 The annular guide rail 13 of the fixed base 1 is grooved, and the pulley 14 at the bottom of the rotating base 8 is rotatably disposed in the annular guide rail 13.

[0053] If the annular guide rail 13 of the fixed base 1 is an annular boss, an annular groove can also be provided in the rotating base 8, and a pulley 14 can be provided in the annular groove. During assembly, the top of the annular guide rail 13 is embedded in the annular groove, and the pulley 14 is made to contact and cooperate with the top surface of the annular guide rail 13.

[0054] It should be noted that the wind power generation components and the generator-motor integrated machine 18 can also be installed on the fixed base 1 or directly on the ground, without any limitation.

[0055] like Figure 2 and Figure 4 As shown in one embodiment of this application, in order to make the gravity generator box 10 more stable when rotating, the fixed base 1 is provided with a support shaft 7 coaxial with the annular guide rail 13. The support shaft 7 passes through the rotating base 8 and the gravity generator box 10, and the support shaft 7 rotates and cooperates with the rotating base 8 and the gravity generator box 10 respectively, so as to avoid the problem of the two ends of the axial direction deviating from the rotation center during the rotation of the gravity generator box 10, and improve the overall stability.

[0056] Specifically, the gravity generator box 10 is provided with a bushing 9, which is located in the middle of the gravity generator box 10 and is coaxial with the gravity generator box 10. The bushing 9 extends from the bottom end face of the gravity generator box 10 through the inner cavity of the gravity generator box 10 to the top end face of the gravity generator box 10. Correspondingly, the rotating base 8 is provided with a shaft hole corresponding to the position of the bushing 9, and the supporting rotating shaft 7 extends into the bushing 9 through the shaft hole.

[0057] In order to ensure smooth rotation between the support shaft 7 and the rotating base 8 and the gravity power generation box 10, and to further improve the stability of rotation, in one embodiment of this application, at least two bearings are respectively provided between the support shaft 7 and the rotating base 8 and between the support shaft 7 and the gravity power generation box 10.

[0058] Further optimize the above technical solutions, such as Figure 2 As shown, in one embodiment of this application, the circumferential cavity wall of the first cavity 1001 is provided with a first annular guide groove 21, and an even number of first spheres 22 are rotatably embedded in the first annular guide groove 21. When the gravity generator box 10 rotates, the first spheres 22 can roll along the first annular guide groove 21. And / or, the circumferential cavity wall of the third cavity 1003 is provided with a second annular guide groove 11, and an even number of second spheres 12 are rotatably embedded in the second annular guide groove 11. When the gravity generator box 10 rotates, the second spheres 12 can roll along the second annular guide groove 11.

[0059] When the gravity generator box 10 rotates, the first sphere 22 or the second sphere 12 can be better distributed at both ends of the gravity generator box 10, thereby maintaining better balance of the gravity generator box 10 during rotation. The rolling of the first sphere 22 or the second sphere 12 in the annular guide groove can better utilize the torque generated by gravity, making the torque change more obvious, thereby improving the energy conversion efficiency.

[0060] To further optimize the above technical solution, in one embodiment of this application, the first annular guide groove 21 is disposed at the end of the first cavity 1001 away from the second cavity 1002, and / or the second annular guide groove 11 is disposed at the end of the third cavity 1003 away from the second cavity 1002.

[0061] like Figure 1 As shown, in order to facilitate the injection of liquid into the gravity power generation box 10, in one embodiment of this application, the gravity power generation box 10 is provided with a water inlet. One or more water inlets may be provided, and a removable sealing plug 20 is provided at the water inlet. Preferably, the water inlet is provided on the top end face of the gravity power generation box 10.

[0062] To further optimize the above technical solution and facilitate the movement of liquid in the gravity generator box 10, in one embodiment of this application, the first cavity 1001 is surrounded by a bottom cavity wall, a first circumferential cavity wall, and a first annular cavity wall, wherein the middle part of the first annular cavity wall is connected to the second cavity 1002, and the first annular cavity wall is a tapered surface that gradually narrows from the first cavity 1001 to the second cavity 1002. The third cavity 1003 is surrounded by a top cavity wall, a second circumferential cavity wall, and a second annular cavity wall, wherein the middle part of the second annular cavity wall is connected to the second cavity 1002, and the second annular cavity wall is a tapered surface that gradually narrows from the third cavity 1003 to the second cavity 1002.

[0063] like Figure 1 As shown, in one embodiment of this application, the wind power generation component includes a tower 2, a wind turbine 3, and wind blades. The tower 2 is mounted on the ground or on the aforementioned fixed base 1. The wind turbine 3 is mounted on the top of the tower 2 and is electrically connected to a generator-motor integrated machine 18. The wind blades are connected to the drive shaft 5 of the wind turbine 3. The wind blades include a hub 4 and a plurality of blades 6 evenly distributed around the outer edge of the hub 4. When driven by wind, the wind blades drive the wind turbine 3 to operate through the drive shaft 5 of the wind turbine 3, converting wind energy into electrical energy.

[0064] Typically, the tower 2 is quite tall. To improve the stability of the tower 2, in one embodiment of this application, a reinforcing support member 19 is provided at the bottom of the tower 2. This reinforcing support member 19 includes an annular reinforcing plate and multiple support plates. The annular reinforcing plate is disposed on the tower 2, and the multiple support plates are spaced apart circumferentially. The top of the support plates is connected to the annular reinforcing plate, the sidewalls of the support plates are connected to the tower 2, and the bottom of the support plates can be disposed on the ground or on a fixed base 1. As shown in this application and the claims, unless the context clearly indicates otherwise, the words "a," "an," "a," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; a method or apparatus may also include other steps or elements. An element defined by the phrase "comprising an..." does not exclude the presence of other identical elements in the process, method, product, or apparatus that includes the element.

[0065] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0066] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0067] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the core ideas of the present invention. It should be noted that those skilled in the art can make several improvements and modifications to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A wind and gravitational potential energy complementary power generation system, characterized by, The wind power generation assembly comprises: a gravity potential energy generation assembly, which comprises a rotatable gravity power generation box (10), an inner cavity for containing liquid is arranged in the gravity power generation box (10), the inner cavity comprises a first cavity (1001), a second cavity (1002) and a third cavity (1003) arranged in sequence from bottom to top, the cross-sectional area of the second cavity (1002) is smaller than that of the first cavity (1001) and the third cavity (1003); a power generation and motor integrated machine (18), the wind power generation assembly is electrically connected with the power generation and motor integrated machine (18), and the gravity potential energy generation assembly is in transmission connection with the driving shaft of the power generation and motor integrated machine (18). The gravity potential energy generation assembly further comprises a rotating base (8), the gravity power generation box (10) is fixed to the rotating base (8), and the gravity power generation box (10) is in transmission connection with the driving shaft of the power generation and motor integrated machine (18) through the rotating base (8), and the bottom of the rotating base (8) is uniformly distributed with at least three pulleys (14) in the circumferential direction.

2. The wind and gravitational potential energy complementary power generation system of claim 1, wherein, The outer circumferential surface of the rotating base (8) is provided with a gear ring (15), the driving shaft of the power generation and motor integrated machine (18) is provided with a gear (16), and the gear ring (15) is in meshing connection with the gear (16).

3. The wind and gravitational potential energy complementary power generation system of claim 2, wherein, The wind power and gravity potential energy complementary power generation system further comprises a fixed seat (1), the gravity potential energy generation assembly is arranged in the fixed seat (1), the fixed seat (1) is provided with an annular guide rail (13), the rotating base (8) is coaxial with the annular guide rail (13) and is rotatably arranged on the annular guide rail (13).

4. The wind and gravitational potential energy complementary power generation system of claim 2, wherein, The fixed seat (1) is provided with a support rotating shaft (7) coaxial with the annular guide rail (13), the support rotating shaft (7) penetrates the rotating base (8) and the gravity power generation box (10), and the support rotating shaft (7) is in rotational cooperation with the rotating base (8) and the gravity power generation box (10) respectively.

5. The wind and gravitational potential energy complementary power generation system of claim 4, wherein, The circumferential cavity wall of the first cavity (1001) is provided with a first annular guide groove (21), and an even number of first balls (22) are rotatably embedded in the first annular guide groove (21); 6. The wind and gravitational potential energy complementary power generation system according to any one of claims 1-5, characterized in that, and / or, the circumferential cavity wall of the third cavity (1003) is provided with a second annular guide groove (11), and an even number of second balls (12) are rotatably embedded in the second annular guide groove (11). The first annular guide groove (21) is arranged at one end of the first cavity (1001) away from the second cavity (1002), and / or the second annular guide groove (11) is arranged at one end of the third cavity (1003) away from the second cavity (1002).

7. The wind and gravitational potential energy complementary power generation system of claim 6, wherein, The gravity power generation box (10) is provided with a water inlet, and a detachable sealing plug (20) is arranged at the water inlet.

8. The wind and gravitational potential energy complementary power generation system according to any one of claims 1-5, wherein, The wind power generation assembly comprises:

9. The wind and gravitational potential energy complementary power generation system according to any one of claims 1-5, wherein, a tower (2); a wind power generator (3) arranged at the top of the tower (2), the wind power generator (3) is electrically connected with the power generation and motor integrated machine (18). ​ Blade, connected to a drive shaft (5) of the wind turbine (3).

10. The wind and gravitational potential energy complementary power generation system of claim 9, wherein, The tower (2) is provided with a reinforcing support member (19) at the bottom.

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