WO2016023271A1

WO2016023271A1 - Wind/compressed air electrical power generating device and multi-machine parallel matrix system for same

Info

Publication number: WO2016023271A1
Application number: PCT/CN2014/089179
Authority: WO
Inventors: 蒋波
Original assignee: 蒋波
Priority date: 2014-08-12
Filing date: 2014-10-22
Publication date: 2016-02-18
Also published as: CN105464905A

Abstract

A wind/compressed air electrical power generating device, comprising: a wind power transmission component (110), that is capable of rotatably converting wind power into mechanical power; passive auxiliary yaw components (710, 720, 730, 740), that are used for passively assisting movement of the wind power transmission component to follow changes in wind direction, so that the axis of said wind power transmission component can be adjusted to align with the wind direction; mechanical power transfer components (210,220,230,240), that are connected to the wind power transmission component and used for transferring the mechanical power from the air to the ground; an air compression component (310), that is arranged on the ground and connected to the mechanical power transfer component and used for compressing air by means of mechanical power; an air storage component (410), that is connected to the air compression component and used for storing the compressed air; a pneumatic electrical power generating component (500), that is connected to the air storage component through a valve and used for generating electrical power by means of the compressed air; and variable-pitch auxiliary components (810,820,830), that comprise a pipeline (810) connected to the air storage component, a turbine oil pump (820) driven by the compressed air conveyed through the pipeline, and a hydraulic arm (830) driven by the turbine oil pump, the hydraulic arm being used for driving variation of the pitch of the wind power transmission component. The present wind/compressed air electrical power generating device achieves higher wind energy utilization efficiency, drives the generator with greater stability, and provides stable, high quality electrical power.

Description

Multi-machine parallel matrix system for wind power generation device and wind power generation device

Technical field

The present invention relates to the field of wind power generation, and in particular to a multi-machine parallel matrix system for a wind power generation device and a wind power generation device.

Background technique

In the current environment where natural resources are becoming more and more tense, the rational use of emerging energy has become a trend. At present, many scientific research forces and enterprises are committed to researching the use of emerging energy such as wind energy and solar energy. Among them, the wind power generation device is a product that utilizes wind energy. The existing wind power generation device usually drives the wind turbine to rotate by the wind to drive the generator to cut the magnetic induction line to generate electricity. Although this method realizes the utilization of wind resources, the energy utilization efficiency is too low and the power generation is stable. Limitations and defects such as poor sex.

Summary of the invention

An object of the present invention is to provide a matrix system for a wind power generation device and a wind power generation device, which can solve problems such as low energy conversion efficiency and poor power generation stability.

According to an aspect of the present invention, a wind power generation apparatus is provided, comprising: a wind transmission component capable of pivotally converting wind power into a mechanical force; and a passive auxiliary yaw component for passively assisting with wind direction change Driving the wind power transmission component such that an axis of the wind power transmission component can be adjusted to be aligned with a wind direction; a mechanical force transmission component coupled to the wind power transmission component for transmitting mechanical force from the air to the ground; air a compression member disposed on the ground and coupled to the mechanical force transmitting member for compressing air by mechanical force; a gas storage member coupled to the air compressing member for storing compressed air; a pneumatic power generating component, Connected to the gas storage component by a valve for generating electricity by compressed air; a pitch auxiliary component including a drainage conduit connected to the gas storage component, and compressed air drawn by the drainage conduit a driven turbine oil pump and a hydraulic arm driven by the turbine oil pump; the hydraulic arm is used to drive the wind power transmission member to pitch.

Optionally, a cooling amount recovery system is further included for cooling the compressed air discharged from the air compressing member by using a cold amount contained in the low temperature waste air generated by the pneumatic power generating component after power generation.

Optionally, the passive yaw component comprises a hydraulic damping system, a yaw tail rudder and a wing rudder; the yaw tail rudder and the wing rudder are used for sensing a wind direction change and driving the wind power transmission component; the hydraulic damping The system is used to prevent excessive yaw of the yaw rudder and the rudder.

Optionally, the mechanical force transmitting component comprises: a first transmission shaft, a first bevel gear assembly, a second transmission shaft, a second bevel gear assembly; wherein the first transmission shaft is coupled to the wind transmission component and Capable of transmitting a mechanical force as the wind driven member pivots; the first bevel gear assembly being pivotally coupled to the first drive shaft and the second drive shaft for redirecting a mechanical force; A second bevel gear assembly is pivotally coupled to the second drive shaft and the air compression component for redirecting mechanical forces.

Optionally, the second transmission shaft is an articulated torque transmission rod.

Optionally, the second transmission shaft is an articulated sleeve.

Optionally, the first bevel gear assembly is for redirecting a mechanical force that pivots along a horizontal axis to a mechanical force that pivots along a vertical axis; the second bevel gear assembly is for pivoting along a vertical axis The mechanical force is redirected into a mechanical force that pivots along a horizontal axis.

Optionally, the wind power transmission component includes a hub coupled to the first drive shaft, and a vane extending radially from the hub and pivotable about the hub.

Optionally, the air compression component comprises a low speed high pressure air compressor having a three or four stage compression process.

Optionally, the gas storage component comprises a two-stage pressurized high pressure temporary storage tank.

Optionally, the gas storage component further includes an air conditioning tank disposed between the high pressure temporary storage tank and the pneumatic power generating component.

Optionally, the outer surface of the high pressure temporary storage tank is arranged with a thin film solar panel for absorbing solar energy and converting it into an auxiliary power source.

Optionally, the pneumatic power generating component includes an expander and a generator, the expander having subsonic blades; the expander capable of driving the generator by compressed air for generating electricity.

According to another aspect of the present invention, there is also provided a multi-machine parallel matrix system of a wind power generation apparatus comprising a plurality of wind power generation apparatuses arranged in parallel as described above.

Optionally, the ratio of the number of the plurality of the wind power generating devices to the total number of the pneumatic power generating components is less than or equal to 1:1.

Optionally, a plurality of the wind power generating devices share the same pneumatic power generating component; and the plurality of the wind power generating devices pass the compressed air stored in the respective gas storage components The pipeline is delivered to a common air conditioning tank that is connected to the same pneumatic power generating component.

According to the wind power generation device of the present invention, on the one hand, the wind power is first converted into a mechanical force, then the mechanical force is applied to compress the air, and finally the compressed air is used to generate electricity. The demand for wind power in such a power generation mode is greatly reduced, so that as long as there is wind, the corresponding equipment can be operated to compress air to generate electricity. In this way, the utilization efficiency of the wind resource of the device is greatly improved compared to the existing wind power generation device, and there is no dilemma in the existing wind power generation device that the wind resource with too high or too low wind speed cannot be utilized. On the other hand, through the regulation of the gas storage component in the complete set of wind power generation devices, the compressed air can stably drive the generator to operate, maintaining a constant current, thereby directly generating an AC power supply network. This can ensure the production of high-quality electric energy, effectively improve the current status of the existing wind power generation equipment relying solely on the quality of the wind resources to determine the stability of power generation; at the same time, based on the storage function of the gas storage components, it can still retain part of The compressed air supply network is used for emergency use. On the other hand, the mechanical force transmission component transmits the mechanical force to the ground to perform the air compression and the pneumatic power generation action, so that the load of the air power generation device in the air cabin is greatly reduced, and the high-altitude light load is realized, so that it can be used with the passive assistance. The yaw component avoids the disadvantages of high-altitude maintenance operations or high-altitude loading and unloading equipment in the existing wind power generation device, and greatly improves the convenience of equipment maintenance. According to the multi-machine parallel matrix system of the wind power generation device according to the present invention, in addition to the above advantages, all the wind power generation devices in the system can share the common air conditioning box and the pneumatic power generation component, thereby reducing the power generation efficiency while reducing the equipment. cost.

DRAWINGS

Figure 1 is a schematic view of an embodiment of a gas power generation device of the present invention;

2 is a schematic diagram of one embodiment of a multi-machine parallel matrix system of the present invention.

detailed description

An embodiment of the wind power generation apparatus of the present invention is shown in FIG. It includes a tower 620 and a nacelle 610 disposed on the tower 620. A hub 120 is disposed at one end of the nacelle 610, and three blades 110 are radially extended from the hub 120. Under the action of the wind, the blades 110 will pivot the hub 120. Among them, it should be known that the number of blades is not necessarily three, which can be designed according to actual conditions. The side of the nacelle 610 away from the blade 110 is provided The passive auxiliary yaw component includes a yaw tail rudder 710, a wing rudder 720, a yaw auxiliary battery 730, and a hydraulic damping system 740. The yaw rudder 710 and the rudder 720 are used to sense the change of the wind direction and passively change the direction of the wind direction to rotate the engine compartment 610, the hub 210 and the blade 110, so that the axes of these components can be adjusted to the wind direction in real time. Precise to achieve the best wind utilization status. However, when the wind is too large, excessive rotation may occur due to inertia. At this time, the equipped hydraulic damping system 740 can brake the nacelle 610, the hub 210, and the blade 110 to achieve a more accurate yaw effect. It is worth noting that when the wind changes are in extreme conditions, the motor can also be used to propel the wind transmission components, thus effectively controlling the yaw. Although motor assist may be required in some cases, due to the presence of passive auxiliary yaw components, the auxiliary motor only needs a small amount of power supply to complete the yaw action, which is configured by the wind power generator itself. The aviation auxiliary battery 730 (for example, disposed in the tower) can satisfy the supply. Therefore, the application of this set of passive auxiliary yaw components greatly simplifies the high-power system in the cabin, and even in most cases does not require strong electricity. In summary, it significantly reduces the cost of the yaw system. However, since the wind power transmission components, the nacelle and the internal components thereof in the prior art are heavy and cannot be pushed by the passive auxiliary yaw members, the yaw system cannot be applied. This passive auxiliary yaw component can only be truly applied on the premise that the load on the airborne cabin has been greatly reduced based on the present invention. Additionally, a first drive shaft 210 is extended from a side of the hub 120 disposed within the nacelle 610 that is pivotable as the hub 120 pivots. The hub 120 is coupled to a first bevel gear assembly 220 that includes two cooperating bevel gears, one of which is coupled to the first drive shaft 210 for pivoting with the first drive shaft 210 While pivoting; another bevel gear is coupled to the second drive shaft 230 to drive the second drive shaft 230 to pivot. The two bevel gears of the first bevel gear assembly 220 are substantially vertically meshed with each other so as to be able to convert the pivotal movement along the horizontal axis into a pivotal movement along a vertical axis, that is, a mechanical force by which the wind is converted by the component. Pass to the ground. The second transmission shaft 230 can be an articulated torque transmission rod, and a plurality of universal joints 231 can be disposed thereon for transmitting torque; alternatively, the second transmission shaft 230 can also be an articulated sleeve. . Additionally, the other end of the second drive shaft 230 will be coupled to the second bevel gear assembly 240. The second bevel gear assembly 240 also includes a pair of cooperating bevel gears, one of which is pivoted by a second drive shaft 230 and the other bevel gear is coupled to a power input component of the air compressor 310. The two bevel gears of the second bevel gear assembly 240 are substantially vertically intermeshing to enable translation of the pivotal motion along the vertical axis into a pivotal motion along the horizontal axis, ie, through the component The mechanical force transmitted to the ground is supplied as power to the ground air compressor 310 (for example, disposed at the bottom of the tower 620). It is worth noting that the air supply compressor 310 herein is a low speed high pressure air compressor having a three or four stage compression process. This allows the compressor to be driven to compress air regardless of whether the transmitted mechanical force is large or small. This correspondingly greatly increases the wind application range of the wind power generation device of the present invention, whether the small wind speed pushes the blade 110 and finally drives the transmission rod to slowly pivot, or the large wind speed pushes the blade 110 and finally drives The drive rods are rapidly pivoted, all of which are capable of forming a mechanical force that drives the low speed high pressure air compressor 310 and ultimately compressing the air. Thereby, the energy utilization efficiency of the set of the wind power generating device is greatly improved, and the arrangement of the air compressor 310 on the ground also greatly reduces the bearing capacity requirement of the nacelle 610. Thereafter, the air compressor 310 delivers the compressed air to the high pressure temporary storage tank 410 connected thereto. The high pressure temporary storage tank 410 herein has a two-stage pressure-retaining structure, which functions to stage the temporary storage of compressed air, for example, subdividing the compressed air into a plurality of different pressures for storage. It further serves to make the subsequent power generation step have a more stable power, that is, when the current air compression amount is large, part of the compressed air can be stored in the high pressure temporary storage tank 410 to prevent the subsequent power generation step from being impacted; When the current air compression amount is small, the compressed air is stored in the high-pressure temporary storage tank 410 to prevent the power generation from being unstable due to the subsequent power generation step. In application, the compressed air is first stored in the high-pressure temporary storage tank 410, and after being temporarily stored and adjusted, it is supplied to the pneumatic power generation unit for power generation. These actually achieve how to convert unstable wind energy into stable mechanical energy and further use it for power generation. Preferably, a thin film solar panel 440 is also disposed on the high pressure temporary storage tank 410, which can absorb solar energy and be used as an auxiliary power source to achieve the highest utilization efficiency of energy in a limited configuration space. Preferably, an air conditioning tank 420 can also be disposed after the high pressure temporary storage tank 410, the air conditioning tank 420 can store the air in stages, and completely release the part of the air for power generation when necessary; for example, using the part The stored compressed air is generated to meet the peaking needs of the power grid. Preferably, for the purpose of structural optimization design, the high pressure temporary storage tank 410 and the air conditioning tank 420 may be arranged one above the other in the tower 620, thereby most rationally improving the space utilization. Air conditioning tank 420 is then in fluid communication with expander 510 and generator 520 via valve 430 to drive expander 510 through the compressed air to cause generator 520 to generate electricity. Among them, the valve 430 plays a regulating role for the air supply of the expander 510. Preferably, the expander 510 herein has subsonic blades whereby it has relatively less noise and a higher safety factor. Because of this time The driving force is very stable and conforms to the standard, so even the synchronous generator 520 can be directly applied to generate alternating current, so that it can be directly applied to the power grid, and has very good applicability. In addition, the wind power generation device of the present invention moves the heavy equipment such as the air compressor 310 and the generator 520 to the ground, which substantially reduces the load on the nacelle 610 of the wind power generation device, which is advantageous for equipment maintenance and replacement.

Further, as a further application of the mechanical force that can be generated by the air in the high pressure temporary storage tank 410, the present invention is further provided with a pitch auxiliary member including a drainage conduit 810 connected to the high pressure temporary storage tank 410, which is provided by the drainage conduit The high pressure air driven turbine oil pump 820 and the hydraulic arm 830 driven by the turbine oil pump 820 can be used to drive the hub 120 and the blade 110 to complete the pitching operation. In this way, the high-power electric device for realizing the pitching operation is omitted, so that the entire wind power system does not need an additional equipment high-power system, and the weak electric system for electronic control can be provided. While maintaining the pitching effect, the cost is greatly reduced.

Further, as a recycling of the low-temperature waste air generated after power generation, a cold recovery system is provided, which may be, for example, a cold recovery circuit 910 for decommissioning the low temperature generated after power generation via the generator 520. The amount of cold contained in the air is directed to the air compressor 310 to cool the compressed air discharged from the air compressor 310 to cool it.

The operation of the present invention will now be described with reference to Figure 1, when the wind passes over the blades 110, the wind is pushed to cause the hub 210 to pivot about the horizontal axis (generally); the hub 210 in turn drives the first drive shaft 210 Turning; the first drive shaft 210 converts its pivotal movement about the horizontal axis by the first bevel gear assembly 220 into a pivotal movement of the second drive shaft 230 about the vertical axis; the second drive shaft 230 passes through the second bevel gear assembly 240 converts its pivotal motion about the vertical axis to the power input of air compressor 310; air compressor 310 is driven to compress the air, and delivers the compressed air to high pressure temporary storage tank 410 for temporary storage; The air is delivered to the air conditioning tank 420 for adjustment; the compressed air is then supplied to the expander 510, causing the expander 510 to drive the generator 520 to generate electricity to effect the entire process of converting wind energy into mechanical energy and ultimately into electrical energy. The energy loss in this process is very small, and finally can achieve very high conversion efficiency of wind energy to electric energy, which is much higher than the energy utilization efficiency of any existing wind power generation device.

As shown in FIG. 2, the present invention also provides a multi-machine parallel matrix system based on the wind power generation device, which can form a power generation moment in parallel by a plurality of such wind power generation devices 100. The wind power generation device 100 can be assembled to a plurality of common air conditioning tanks 400 through a pipeline 900 and share the final pneumatic power generating component 500. The arrangement is such that when the wind resource is small, a small number of pneumatic power generation components 500 are generated by the gas production function of the plurality of wind power generation devices to maintain the stability thereof; and when the wind resources are abundant, the plurality of atmospheres can be selected. The gas-making function of the power generation device realizes the power generation of a plurality of pneumatic power generation components 500 to increase the output thereof; and it is also possible to reserve a portion of the compressed air for emergency use. Thereby achieving "distributed gas production, centralized power generation." This makes the control of power generation by compressed air more precise and reasonable. Moreover, when the wind power generation device of the present invention is used in a large scale by the multi-machine parallel matrix system of the present invention, since the common air conditioning box 400 is used, the compressed air can be stored in a large amount, which plays a very significant role in practical use. . When the common air conditioning tank stores enough compressed air, in addition to the multi-machine parallel matrix system to which the present invention can be applied to meet daily power supply needs, sufficient margin can be provided to meet the unexpected needs. This can timely support the power supply in various places in practical applications, so that the application of wind power generation can be more popular and applied, and more effectively bring benefits to human life.

The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. Modifications or variations of the specific features of the embodiments may be made by those skilled in the art in the light of the above description.

Claims

A wind power generation device, comprising:

a wind power transmission component that is capable of pivotally converting wind power into mechanical force;

a passive auxiliary yaw component for passively assisting the wind power transmission component as the wind direction changes, such that an axis of the wind power transmission component can be adjusted to be aligned with the wind direction;

a mechanical force transmitting member coupled to the wind power transmission member for transmitting mechanical force from the air to the ground;

An air compression member disposed on the ground and coupled to the mechanical force transmitting member for compressing air by mechanical force;

a gas storage component coupled to the air compression component for storing compressed air;

a pneumatic power generating component connected to the gas storage component through a valve for generating electricity by compressed air;

a pitch assisting component comprising a drainage conduit connected to the gas storage component, a compressed air driven turbine oil pump drawn by the drainage conduit, and a hydraulic arm driven by the turbine oil pump; The wind power transmission component is driven to pitch.
The ventilator according to claim 1, further comprising a cold recovery system for cooling the air contained in the low-temperature waste air generated by the pneumatic power generation component after power generation The compressed air discharged from the compression member.
The ventilator according to claim 1, wherein the passive yaw component comprises a hydraulic damper system, a yaw tail rudder and a rudder; the yaw tail rudder and the rudder are used to sense wind direction changes and Driving the wind power transmission component; the hydraulic damping system is for preventing excessive yaw of the yaw tail rudder and the rudder.
The wind power generation device according to any one of claims 1 to 3, wherein the mechanical force transmitting member comprises:

a first transmission shaft, a first bevel gear assembly, a second transmission shaft, and a second bevel gear assembly;

Wherein the first drive shaft is coupled to the wind power transmission component and is capable of pivoting with the wind power transmission component to transmit mechanical force;

The first bevel gear assembly is pivotally coupled to the first transmission shaft and the second transmission shaft for transmitting a mechanical force in a variable direction;

The second bevel gear assembly is capable of pivotally connecting the second transmission shaft and the air pressure Shrink the part for transferring mechanical force in the direction of change.
The ventilating apparatus according to claim 4, wherein said second transmission shaft is an articulated torque transmission rod.
The ventilating apparatus according to claim 4, wherein said second transmission shaft is an articulated sleeve.
The wind power generation device according to claim 4, wherein

The first bevel gear assembly is configured to redirect a mechanical force that pivots along a horizontal axis to a mechanical force that pivots along a vertical axis;

The second bevel gear assembly is for redirecting a mechanical force that pivots along a vertical axis to a mechanical force that pivots along a horizontal axis.
The wind power generation device according to any one of claims 1 to 3, wherein the wind power transmission component comprises:

a hub connected to the first transmission shaft;

A vane that extends radially from the hub and is pivotable about the hub.
The ventilating apparatus according to any one of claims 1 to 3, wherein the air compressing member comprises a low-speed high-pressure air compressor having a three-stage or four-stage pressurization process.
The ventilating apparatus according to any one of claims 1 to 3, wherein the gas storage means comprises a two-stage pressurized high-pressure temporary storage tank.
The ventilating apparatus according to claim 10, wherein said gas storage unit further comprises an air conditioning tank disposed between said high pressure temporary storage tank and said pneumatic power generating component.
The ventilator according to claim 10, wherein the outer surface of the high-pressure temporary storage tank is provided with a thin-film solar panel for absorbing solar energy and converting it into an auxiliary power source.
A wind power generation apparatus according to any one of claims 1 to 3, wherein said pneumatic power generating component comprises an expander and a generator, said expander having subsonic blades; said expander capable of being compressed Air is used to drive the generator, which is used to generate electricity.
A multi-machine parallel matrix system for a wind power generation device, comprising: a plurality of wind power generation devices according to any one of claims 1 to 13 arranged in parallel.
A multi-machine parallel matrix system for a wind power generation device according to claim 14, It is characterized in that the ratio of the number of the plurality of the wind power generation devices to the total number of the pneumatic power generation components is less than or equal to 1:1.
A multi-machine parallel matrix system for a wind power generation device according to claim 14, wherein a plurality of said wind power generation devices share the same pneumatic power generation component; and said plurality of said wind power generation devices each have said gas storage component The compressed air stored in the pipeline is conveyed to the common air conditioning tank through a pipeline, and the common air conditioning tank is connected to the same pneumatic power generating component.