CN117869195A - Wind-water hybrid power generation device - Google Patents

Abstract

The invention discloses a wind-water hybrid power generation device, which comprises a floating body, a wind power generation system and a hydroelectric generation system, wherein the floating body is connected with the wind power generation system; the wind power generation system comprises a wind turbine, a first rotating shaft and a first generator, wherein the first rotating shaft is connected with the first generator through a first controller; the hydraulic power generation system comprises a water turbine, a second rotating shaft and a second generator, wherein the water turbine is connected with the second rotating shaft, and the second rotating shaft drives the second generator; the first rotating shaft is connected with the second rotating shaft through a one-way controller, when the rotating speed of the first rotating shaft is greater than or equal to the set rotating speed, the one-way controller is disconnected, the first controller is started, and the hydroelectric power generation system and the wind power generation system independently generate power; when the rotation speed of the first rotation shaft exceeds the rotation speed of the second rotation shaft, the unidirectional controller connects the first rotation shaft and the second rotation shaft, so that the driving force is transmitted to the first rotation shaft by the second rotation shaft; the hydroelectric generation system drives the wind power generation system to generate electricity.

Description

Wind-water hybrid power generation device

Technical Field

The invention relates to a wind power and water power generation system which can be installed in a stream, offshore or the like and can generate electricity efficiently by utilizing water power and wind power.

Background

Wind power plants are typically larger plants located in the region of the north west high winds. Hydroelectric power generation is typically accomplished by pumped storage power stations, but pumped storage power stations typically have high terrain requirements and require large mechanical equipment. If a power plant could be designed that is not large in size and that would utilize both wind and water energy, it would be more optimal for the use of these energy sources. Most of the existing wind-power-water power hybrid power generation devices simply combine wind power generators and water power generation turbines, and the cooperative power generation between wind power and water power is not realized, so that the power generation efficiency is still lower. For example, in patent CN 201811065310.6, a wind-water power composite power generation device is disclosed, which includes a wind power generation system, a water power generation system, and a sewage monitoring and treatment system. The wind power generation device can fully utilize wind energy, the hydroelectric generation system can fully utilize the kinetic energy of water flow, the device is arranged in the middle of a river, the wind power generation system and the hydroelectric generation system can independently operate, the hydraulic turbine can rotate along with the water flow to generate power, but the wind power generation device needs wind speed to be more than 3-5 meters per second to start the wind power generator, the cooperative power generation between wind power and water power is not realized, and the power generation efficiency is still lower.

In patent CN201810600709.3, a system and method for the collaborative operation of wind power generation, pumped-storage power generation and hydraulic power supply is disclosed, which comprises a wind power generation system, a pumped-storage power generation system, a hydraulic power supply system and a coordination control processor; a power supply circuit is respectively arranged between the electric energy output end of the wind power generation system and the power supply input end of the pumped storage water pump and the water tower water pump; the coordination control processor calculates the residual generated energy of the wind power generation system, controls the on-off of each power supply circuit and the operation of the pumped storage water pump and the water tank water pump according to the residual generated energy, so that the residual generated energy of the wind power generation system provides a working power supply for the water tank water pump or the pumped storage water pump, and the utilization priority of the water tank water pump on the residual generated energy is higher than that of the pumped storage water pump. However, this patent does not consider increasing the efficiency of wind power generation, and does not realize efficient operation in cooperation with wind power and water power generation.

Disclosure of Invention

Aiming at the defects existing in the prior art, the invention aims to provide a wind-water hybrid power generation device which is arranged in an upper reservoir of a pumped storage hydropower station. Even if the wind power is poor, the starting of the wind power generator is not problematic, and the kinetic energy of wind power and water power can be effectively converted into electric energy, so that the power generation efficiency is remarkably improved.

In order to achieve the above object, the present invention is realized by the following technical scheme:

in a first aspect, an embodiment of the present invention provides a wind-water hybrid power generation device, including a floating body, a wind power generation system, and a hydro-power generation system; the top of the floating body is provided with a wind power generation system, and the bottom of the floating body is provided with a hydroelectric generation system; the wind power generation system comprises a wind turbine, a first rotating shaft and a first generator, wherein the wind turbine is arranged at the top of the first rotating shaft, and the first rotating shaft is connected with the first generator through a first controller; the hydraulic power generation system comprises a water turbine, a second rotating shaft and a second generator, wherein the water turbine is connected with the second rotating shaft, and the second rotating shaft drives the second generator;

the first rotating shaft is connected with the second rotating shaft through a one-way controller, when the rotating speed of the first rotating shaft is greater than or equal to the set rotating speed, the one-way controller is disconnected, the first controller is started, and the hydroelectric power generation system and the wind power generation system independently generate power; when the rotation speed of the first rotation shaft exceeds the rotation speed of the second rotation shaft, the unidirectional controller connects the first rotation shaft and the second rotation shaft, so that the driving force is transmitted to the first rotation shaft by the second rotation shaft; the hydroelectric generation system drives the wind power generation system to generate electricity.

As a further technical scheme, the unidirectional controller comprises a needle roller, a compression spring, a fixed body, a driving outer ring and a driven shaft; the inner ring of the driving outer ring is provided with a plurality of grooves, and each groove is internally provided with a needle roller, a compression spring and a fixing body; the fixed body is fixed in the inside one side of recess, and the compression spring of slope setting is connected to the fixed body, compression spring provide the driving force for the kingpin, make its and driven shaft outer lane contact, the axis and the driven shaft of kingpin are parallel, the driven shaft sets up the inner circle at the outer ring of drive, driven shaft is connected to first rotation axis, the outer ring of drive is connected to the second rotation axis.

As a further technical scheme, the axes of the compression springs are tangent to the outer ring of the driven shaft to form an included angle.

As a further technical scheme, the included angle formed by each compression spring and the outer ring of the driven shaft is equal.

As a further technical scheme, the water turbine comprises rotating blades and a shell; four conical openings up, down, left and right are arranged on the shell; a rotary blade is arranged in the shell and drives the second rotary shaft to rotate.

As a further technical scheme, the water flow flowing into the four conical openings drives the rotating blades to rotate.

As a further technical scheme, a rotation speed monitor is installed on the first rotation shaft.

As a further technical scheme, a thrust bearing is connected to the first rotating shaft at the top plate, the first controller is arranged at the bottom of the first rotating shaft at the lower part of the thrust bearing, the first controller is connected with the first rotating shaft and the first driving belt pulley, the first driving belt pulley drives the first driven belt pulley through the first belt, and the first driven belt pulley is connected with the rotor of the first generator.

As a further technical scheme, a second driving belt pulley is arranged on the second rotating shaft, the second driving belt pulley drives a second driven belt pulley through a second belt, and the second driven belt pulley is connected with a rotor of the second generator.

As a further technical solution, the floating body may be an HDPE standard buoyancy tank.

The beneficial effects of the embodiment of the invention are as follows:

the invention is characterized in that a unidirectional controller is arranged between a first rotating shaft and a second rotating shaft, when the rotating speed of the first rotating shaft exceeds the rotating speed of the second rotating shaft, the unidirectional controller is connected with the first controller, and the driving force of the first rotating shaft is transmitted to a first generator to generate electricity, so that when a wind turbine rotates at or above a preset rotating speed, the first generator and the second generator can generate electricity, and the second generator can continuously generate electricity, and the first controller is connected with the wind turbine; therefore, the kinetic energy of the water wheel and the wind wheel can be effectively converted into electric energy, and the power generation efficiency can be obviously improved. Even if the wind turbine is stopped in the case of no wind or small wind, the rotation force of the water turbine can be used to maintain the rotation of the wind turbine, so that the startability of the wind turbine is not a problem even in the case of poor wind, if the wind condition is improved while the wind turbine is rotating, the wind turbine can be rapidly accelerated and reach a predetermined rotation speed or exceed the predetermined rotation speed, so that the first generator can generate electricity with high efficiency. Furthermore, even if the wind turbine does not rotate due to no wind or small wind force, the power generation does not stop because the first generator is always driven by the rotational force of the water turbine as long as the upper reservoir level changes. According to the wind power and hydroelectric power generation system, even under the condition of poor wind power, the startability of the wind turbine is not problematic, and the kinetic energy of wind power and hydraulic power can be effectively converted into electric energy, so that the cooperation between wind power generation and hydraulic power generation is realized, and the power generation efficiency is remarkably improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a side view of an embodiment of the present invention;

FIG. 3 is a schematic diagram of the working principle of the unidirectional controller according to the embodiment of the invention;

FIG. 4 is a schematic diagram of the principle of stopping the unidirectional controller according to the embodiment of the invention;

FIG. 5 is an enlarged view of details of the unidirectional controller in an embodiment of the present invention when the unidirectional controller is not in operation;

FIG. 6 is a schematic diagram of the operation of the hydraulic turbine when the water level in the reservoir is reduced in the embodiment of the invention;

FIG. 7 is a schematic diagram of the operation of the hydraulic turbine when the water level in the reservoir is raised in accordance with the embodiment of the present invention.

In the figure: the wind turbine comprises a wind blade 1, a first rotating shaft 2, a rotating speed monitor 3, a hub shaft 4, a top plate 5, a partition plate 6, a side plate 7, a first controller 8, a driving belt pulley 9, a bearing 10, a driven belt pulley 11, a first generator 12, a flange 13, a second controller 14, a second rotating shaft 15, a driving belt pulley 16, a driven belt pulley 17, a second generator 18, a telescopic shaft barrel 19-1, a shaft sleeve 19-2, a water turbine shell 20, a rotating blade 21, a water turbine 22 upper reservoir, a floating body 23, a water inlet and outlet valve 24, a conical opening 25, a water conveying pipeline 26, an inclined part 27, rolling needles 28, a spring 29, a driving outer ring 30, a transmission shaft 31, a groove 32 and a fixed body 33.

Detailed Description

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular forms also are intended to include the plural forms unless the present invention clearly dictates otherwise, and furthermore, it should be understood that when the terms "comprise" and/or "include" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "upper", "lower", "left" and "right" in the present invention, if they mean only the directions of upper, lower, left and right in correspondence with the drawings themselves, are not limiting in structure, but merely serve to facilitate description of the present invention and simplify description, rather than to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

The terms "mounted," "connected," "secured," and the like are to be construed broadly and refer to either a fixed connection, a removable connection, or an integral body, for example; the terms are used herein as specific meanings as understood by those of ordinary skill in the art, and are not limited to the following terms.

As introduced by the background art, the defects in the prior art exist, and in order to solve the technical problems, the invention provides a wind-water hybrid power generation device; comprises a floating body, a wind power generation system and a hydroelectric generation system; the top of the floating body is provided with a wind power generation system, and the bottom of the floating body is provided with a hydroelectric generation system; the wind power generation system comprises a wind turbine, a first rotating shaft and a first generator, wherein the wind turbine is arranged at the top of the first rotating shaft, and the first rotating shaft is connected with the first generator through a first controller; the hydraulic power generation system comprises a water turbine, a second rotating shaft and a second generator, wherein the water turbine is connected with the second rotating shaft, and the second rotating shaft drives the second generator; the first rotating shaft is connected with the second rotating shaft through a one-way controller, when the rotating speed of the first rotating shaft is greater than or equal to the set rotating speed, the one-way controller is disconnected, the first controller is started, and the hydroelectric power generation system and the wind power generation system independently generate power; when the rotation speed of the first rotation shaft exceeds the rotation speed of the second rotation shaft, the unidirectional controller connects the first rotation shaft and the second rotation shaft, so that the driving force is transmitted to the first rotation shaft by the second rotation shaft; the hydroelectric generation system drives the wind power generation system to generate electricity. The invention is characterized in that a unidirectional controller is arranged between a first rotating shaft and a second rotating shaft, when the rotating speed of the first rotating shaft exceeds the rotating speed of the second rotating shaft, the unidirectional controller is connected with the first controller, and the driving force of the first rotating shaft is transmitted to a first generator to generate electricity, so that when a wind turbine rotates at or above a preset rotating speed, the first generator and the second generator can generate electricity, and the second generator can continuously generate electricity, and the first controller is connected with the wind turbine; therefore, the kinetic energy of the water wheel and the wind wheel can be effectively converted into electric energy, and the power generation efficiency can be obviously improved. Even if the wind turbine is stopped in the case of no wind or small wind, the rotation force of the water turbine can be used to maintain the rotation of the wind turbine, so that the startability of the wind turbine is not a problem even in the case of poor wind, if the wind condition is improved while the wind turbine is rotating, the wind turbine can be rapidly accelerated and reach a predetermined rotation speed or exceed the predetermined rotation speed, so that the first generator can generate electricity with high efficiency. Furthermore, even if the wind turbine does not rotate due to no wind or small wind force, the power generation does not stop because the first generator is always driven by the rotational force of the water turbine as long as the upper reservoir level changes. According to the wind power and hydroelectric power generation system, even under the condition of poor wind power, the startability of the wind turbine is not problematic, and the kinetic energy of wind power and hydraulic power can be effectively converted into electric energy, so that the cooperation between wind power generation and hydraulic power generation is realized, and the power generation efficiency is remarkably improved.

In a typical embodiment of the invention, as shown in fig. 1, the system is arranged at a reservoir on a pumped storage power station, and is arranged on the basis of the pumped storage power station, so that the cost is saved, and the time and the labor are saved.

The system mainly comprises a floating body 23, a wind power generation set and a hydroelectric generation set.

The floating body 23 can adopt an HDPE standard buoyancy tank;

the wind power generation set consists of a wind turbine, a first rotating shaft, a first controller and a first generator;

the hydroelectric generation set consists of a water turbine, a water turbine shell, a second rotating shaft, a second controller and a second generator;

specifically, there are two layers of frame structures on the upper part of the floating body 23, the frame is made up of roof 5, lateral plate 7, baffle 6; the wind turbine is located in the upper part of the roof 7, comprising the wind blades 1 and the hub 4; the wind blade 1 may be made of a fiber-reinforced synthetic resin. The wind blade 1 and the hub shaft 4 may be integrally formed. The blades of the wind turbine are provided with a pitch at the tip portion; the inclined portion catches wind attempting to escape in the blade tip direction, and the reaction force inclined portion rotates the wind turbine efficiently, so that the wind turbine can generate electricity efficiently even at low wind speeds. As shown in fig. 2, the wind blade 1 is integrally formed with vertically upper and lower ends thereof with inwardly inclined portions which are inclined circularly inward, i.e., toward the first rotation axis 2. The cross-sectional shape of the main part of the wind blade 1 except for the upper and lower ends is similar to that of a standard lift blade, and the thickness of the blade is thicker at the front side in the rotation direction and gradually becomes thinner backward.

When the wind blows, the wind blade 1 rotates with it, and when the wind blade rotates, the difference between the inner and outer rotational radii causes the peripheral speed of the outer surface to be greater than the peripheral speed of the inner surface, and the air flow velocity passing backwards along the outer surface is faster than the air flow velocity of the inner surface. Therefore, at the trailing edge of the wind blade 1, the pressure of the air flow flowing through the outer surface is smaller than the pressure of the air flow flowing through the inner surface, and the outer surface of the trailing edge of the wind blade 1 is pushed from the rear to the leading edge, thereby applying a pushing force in the rotational direction to the wind blade 1, causing the wind generator rotor to rotate in a clockwise direction in a plan view. The hub shaft 4 is coupled to an upper portion of the first rotary shaft 2 by serrations, screws, or the like, so that the wind turbine rotor and the first rotary shaft 2 are rotated together. At the first rotation axis 2 there is a rotational speed monitor 3. The first rotation shaft is connected to a thrust bearing at the top plate 5. The first controller 8 is arranged at the bottom of the first rotating shaft 2 positioned at the lower part of the thrust bearing, the first controller 8 is connected with the first rotating shaft and the driving belt pulley, the driving belt pulley drives the driven belt pulley through the belt, the driven belt pulley is connected with the rotor of the first generator 12, when the first rotating shaft 2 rotates under the action of wind force, the first controller 8 is communicated with the first rotating shaft 2 and the driving belt pulley, the first generator 12 generates electricity, and when the first controller 8 is disconnected and does not communicate the first rotating shaft 2 with the driving belt pulley, the first generator 12 does not generate electricity;

the first controller 8 may employ an existing electromagnetic clutch. When the first rotation shaft rotates, the driving pulley may be selectively coupled to or decoupled from the first rotation shaft, thereby intermittently transmitting power from the first rotation shaft to the first generator.

Further, the first generator 12 is mounted on the partition 6.

The hydroelectric power generation equipment mainly comprises a water turbine rotating blade 21, a water turbine shell 20, a shaft sleeve 19-2 and a telescopic shaft sleeve 19-1. Four conical openings up, down, left and right are arranged on the water turbine shell 20; the water turbine housing is integrally formed. Carbon fiber materials may be used, which are light and strong.

The shaft sleeve 19-2 is fixedly welded at the upper part of the water turbine shell and is not telescopic; the telescopic shaft tube 19-1 can be stretched or retracted by the floating body when the water level rises or falls. When the water level rises, the floating body floats upwards, and the telescopic shaft cylinder 19-1 is stretched; when the water level decreases, the float descends and the telescopic shaft tube 19-1 is compressed.

The hydraulic turbine shell lower part is equipped with four support frames, and the bottom of hydraulic turbine and upper reservoir is connected to the support frame, and the effect of support frame is the position of fixed hydraulic turbine. Therefore, no matter the water level rises or falls, the water turbine is close to the upper part of the upper reservoir switch valve, and the energy dissipation is reduced.

When the water level of the upper reservoir rises, the water inlet valve is opened, and water flows in from the water conveying pipeline. As shown in fig. 7, water is introduced from two conical openings at the lower part, and an impact is applied to the rotary blades 21, and the rotary blades 21 rotate to drive the unidirectional rotary rotor to rotate. The rotor is unidirectionally rotated and then connected with a second rotating shaft 15;

when the upper reservoir level is lowered, as shown in fig. 6, the principle is the same. When water in the upper reservoir flows into the lower reservoir, the valve is opened, the water flows out of the water delivery pipeline, the water level of the upper reservoir is reduced, as shown in fig. 6, the water flows through the conical opening above to drive the rotary blades 21 to rotate, and the rotary blades 21 further drive the unidirectional rotary rotor to rotate. The water then flows out of the lower conical opening.

The size of the upper reservoir in the drawing is only an illustration, and the dimensions depend on the actual size.

The support frame is as narrow as possible to prevent obstruction of the water flow.

The upper end of the second rotating shaft 15 extends upwards out of the top wall of the telescopic shaft cylinder, is connected with the first rotating shaft 2 through the second controller 14, a driving belt pulley 16 is arranged on the upper portion of the second rotating shaft 15, the driving belt pulley 16 drives a driven belt pulley 17 through a belt, and the driven belt pulley 17 drives a rotor of a second generator 18 to rotate. Accordingly, the second generator 18 continuously drives the power generation by the rotational force of the second rotation shaft 15 connected to the horizontal shaft water wheel.

When the device is started, the second controller 14 is opened when the rotation speed monitor 3 monitors that the rotation speed of the first rotation shaft 2 is smaller than the rotation speed of the second rotation shaft 15, so that the driving force is transmitted to the first rotation shaft 2 by the second rotation shaft 15. When the rotational speed of the first rotation shaft 2 is greater than or equal to the set rotational speed, the second controller 14 is turned off, and the first controller 8 is turned on to generate power from the driving force generated by the wind turbine.

The second controller works as follows:

the second controller 14 is a unidirectional controller, and its specific structure is shown in fig. 3, 4 and 5, and includes a needle roller 28, a compression spring 29, a fixed body 33, a driving outer ring 30 and a driven shaft 31; the inner ring of the driving outer ring 30 is provided with a plurality of grooves 32, and each groove 32 is internally provided with a needle roller 28, a compression spring 29 and a fixing body 33; the fixed body 33 is fixed on one side in the groove 32, the fixed body 33 is connected with the compression spring 29, the compression spring 29 is connected with the needle roller 28, and the axis of the needle roller 28 is parallel to the axis of the driven shaft 31;

the driven shaft 31 is arranged on the inner ring of the driving outer ring 30, the first rotating shaft 2 is connected with the driven shaft 31, and the second rotating shaft 15 is connected with the driving outer ring 30;

the needle roller 28 is a cylindrical member accommodated in the plurality of grooves 32, and is a member for transmitting power transmitted from the drive outer ring 30 to the transmission shaft 31. In addition, the needle is biased toward the needle side of the groove 32 by a spring.

The compression springs 29 are housed in the plurality of grooves 32, respectively, and are members for urging the needle rollers in the circumferential direction. One end of the spring is in contact with the needle and the other end is located near the fixed end in the recess 32. The axis of each compression spring is tangent to the outer ring of the driven shaft to form an included angle. And the included angle formed by each compression spring and the outer ring of the driven shaft is equal.

As shown in fig. 3, when the wind turbine stops rotating or rotates slowly under no or little wind, the wind power generator cannot be started, the first rotating shaft 2 and the driven shaft 31 connected thereto do not rotate or rotate slowly, the second rotating shaft 15 connected to the hydro power generator rotates under the impact of water flow, so the driving outer ring 30 connected to the second rotating shaft 15 rotates clockwise with respect to the driven shaft 31 connected to the first rotating shaft 2, in the initial state, the needle contacts the surface of the driven shaft 31 in the spring natural state, the needle is fixedly connected inside the groove of the fixed body under the connection of the spring, and when the rotation speed of the driving outer ring 30 is greater than that of the driven shaft 31, the needle generates a moment for driving the driven shaft 31 to rotate clockwise, so the driven shaft 31 rotates clockwise together with the driving outer ring 30. Thus, as shown in fig. 3, the needle rollers are located between the groove portions and the outer peripheral surface of the transmission shaft 31, and the torque of the driving outer ring 30 can be transmitted to the driven shaft 31 through the needle rollers. Thus, the driven shaft 31 and the first rotary shaft 2 connected thereto are rotated by the driving outer ring 30 and are rotated synchronously. Therefore, even in the case of no wind or less wind, the starting performance of the wind turbine rotor is poor, and the wind turbine rotor can be kept continuously rotated by the rotational force of the water turbine. In this case the wind turbine rotor can be kept rotating at a relatively low rotational speed, since the water level in the upper reservoir generally does not change too fast and the turbine and its attached second rotational shaft 15 do not rotate at high speed.

When the wind turbine is rotated by the water turbine in a windless or windless condition, the first controller 8 is turned off so that power is not transmitted from the first rotation shaft 2 to the first generator 12 to generate electricity. The driving torque when driving the first generator 12 will brake the rotation of the wind turbine without the risk of stall.

Conversely, when the rotational speed of the drive shaft 31 is greater than the rotational speed of the drive outer ring 30, the drive shaft 31 rotates clockwise with respect to the drive outer ring 30, and the rotation of the drive shaft 31 causes the needle roller to move toward the groove spring end side against the pressing force of the spring by applying a clockwise force to the needle roller. In this way, as shown in fig. 4, a gap is formed between the groove portion and the outer peripheral surface of the propeller shaft 31. At this time, the transmission shaft 31 and the drive outer ring 30 are free. Thus, torque from the drive outer ring 30 is not transmitted to the propeller shaft 31. Specifically, if the wind conditions are improved when the wind turbine is rotated by the water turbine and the rotation speed of the first rotation shaft 2 exceeds the rotation speed of the second rotation shaft 15, the rotation speed of the driven shaft 31 is faster than the rotation speed of the driving outer ring 30, and the rotation speed of the driving outer ring 30 is correspondingly slower, and moves counterclockwise with respect to the driven shaft 31, as shown in fig. 4. At this time, since the driven shaft 31 rotates at a high speed, the needle roller 28 is driven to move clockwise, so that the needle roller 28 compresses the compression spring 29 and moves in the rotation direction, thereby eliminating the wedging action with the outer circumference of the driven shaft 31. The connection between the driving outer ring 30 and the driven shaft 31 is thus broken, and the first and second rotation shafts are independently rotated in the same direction at different rotation speeds. At this time, the average rotation speed of the first rotation shaft 2 is detected by the rotation speed monitor 3, and when the rotation speed exceeds a predetermined value, the first controller 8 is turned on, and power is transmitted from the first rotation shaft 2 to the first generator 12 to generate power.

When the average rotational speed of the first rotational shaft 2 rotating together with the wind turbine reaches a predetermined value at which the first generator 12 is driven, the first controller 8 is turned on, and power is transmitted from the first rotational shaft 2 to the first generator 12, thereby generating electric power.

The first controller 8 is provided at the bottom of the first rotating shaft 2, and intermittently transmits power from the first rotating shaft 2 to the first generator 12, and may be an electromagnetic controller.

The first rotation shaft 2 and the second rotation shaft 23 rotate in the same direction.

As described above, in the wind and water power generation system of embodiment 1, the rotation force of the second rotation shaft 23 coupled to the main shaft of the water turbine continuously drives the second generator 18 to generate electricity, the second controller 14 is provided between the second rotation shaft 23 and the first rotation shaft 2, when the rotation speed of the first rotation shaft 2 exceeds the rotation speed of the second rotation shaft 23, the second controller 14 disconnects the connection between the second rotation shaft 23 and the first rotation shaft 2 to rotate the first rotation shaft 2 independently, when the average rotation speed of the first rotation shaft 2 exceeds the predetermined value, the first controller 8 is connected to drive the rotation force of the first rotation shaft 2 to generate electricity, so that when the wind condition is good and the wind turbine rotates at or above the predetermined rotation speed, the second generator 18 connected to the water turbine continuously generates electricity, and the first generator 12 connected to the wind turbine through the first controller 8 can also generate electricity. Therefore, the kinetic energy of the water turbine and the wind turbine can be effectively converted into electric energy, and the power generation efficiency is remarkably improved. The electrical energy generated by the first and second generators is stored in a battery (not shown) and can be directly transferred to an external ac load power system.

Even if no wind or less wind force is generated, the first generator 12 cannot generate electricity, and if the water level in the upper reservoir changes, the blades of the water turbine rotate and drive the second generator 18 all the time, so that the generation of electricity is not stopped. When the wind turbine is rotated by the water turbine in windless or windless conditions, the first controller 8 is turned off and power is not transferred from the first rotation shaft 2 to the first generator 12.

In addition, even if the wind turbine stops rotating due to no wind or small wind force, the rotation force of the water wheel can be used to keep the wind turbine rotating, so even if the wind condition is poor, the startability of the wind turbine is not a problem. If the situation is improved, the wind turbine may be rapidly accelerated to or beyond a predetermined rotational speed so that the first generator can efficiently generate electricity.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A wind-water hybrid power generation device comprises a floating body, a wind power generation system and a hydroelectric generation system; the top of the floating body is provided with a wind power generation system, and the bottom of the floating body is provided with a hydroelectric generation system; the wind power generation system comprises a wind turbine, a first rotating shaft and a first generator, wherein the wind turbine is arranged at the top of the first rotating shaft, and the first rotating shaft is connected with the first generator through a first controller; the hydraulic power generation system comprises a water turbine, a second rotating shaft and a second generator, wherein the water turbine is connected with the second rotating shaft, and the second rotating shaft drives the second generator; the method is characterized in that:

the first rotating shaft is connected with the second rotating shaft through a one-way controller, when the rotating speed of the first rotating shaft is greater than or equal to the set rotating speed, the one-way controller is disconnected, the first controller is started, and the hydroelectric power generation system and the wind power generation system independently generate power; when the rotation speed of the first rotation shaft exceeds the rotation speed of the second rotation shaft, the unidirectional controller connects the first rotation shaft and the second rotation shaft, so that the driving force is transmitted to the first rotation shaft by the second rotation shaft; the hydroelectric generation system drives the wind power generation system to generate electricity.

2. The wind-water hybrid power generation device according to claim 1, wherein: the unidirectional controller comprises a needle roller, a compression spring, a fixed body, a driving outer ring and a driven shaft; the inner ring of the driving outer ring is provided with a plurality of grooves, and each groove is internally provided with a needle roller, a compression spring and a fixing body; the fixed body is fixed in the inside one side of recess, and the compression spring of slope setting is connected to the fixed body, compression spring provide the driving force for the kingpin, make its and driven shaft outer lane contact, the axis and the driven shaft of kingpin are parallel, the driven shaft sets up the inner circle at the outer ring of drive, driven shaft is connected to first rotation axis, the outer ring of drive is connected to the second rotation axis.

3. The wind-water hybrid power generation device according to claim 2, wherein: the axis of each compression spring is tangent to the outer ring of the driven shaft to form an included angle.

4. A wind-water hybrid power plant as claimed in claim 3, wherein: and the included angle formed by each compression spring and the outer ring of the driven shaft is equal.

5. The wind-water hybrid power generation device according to claim 1, wherein: the water turbine comprises a rotary blade and a shell; four conical openings up, down, left and right are arranged on the shell; a rotary blade is arranged in the shell and drives the second rotary shaft to rotate.

6. The wind-water hybrid power generation device according to claim 1, wherein: the water flow flowing into the four conical openings drives the rotating blades to rotate.

7. The wind-water hybrid power generation device according to claim 1, wherein: the first rotating shaft is provided with a rotating speed monitor.

8. The wind-water hybrid power generation device according to claim 1, wherein: the first rotating shaft is connected with a thrust bearing at the top plate, the first controller is arranged at the bottom of the first rotating shaft positioned at the lower part of the thrust bearing, the first controller is connected with the first rotating shaft and a first driving belt pulley, the first driving belt pulley drives a first driven belt pulley through a first belt, and the first driven belt pulley is connected with a rotor of the first generator.

9. The wind-water hybrid power generation device according to claim 1, wherein: and a second driving belt pulley is arranged on the second rotating shaft, the second driving belt pulley drives a second driven belt pulley through a second belt, and the second driven belt pulley is connected with a rotor of a second generator.

10. The wind-water hybrid power generation device according to claim 1, wherein: the floating body can adopt an HDPE standard floating box.