A wind power generation system based on a wind turbine

Abstract

The application discloses a wind power generation system based on a wind driven generator and belongs to the technical field of wind power generation, which comprises two auxiliary cabins fixedly installed on the two sides of a wind driven generator cabin, at least one flow guide channel in each auxiliary cabin, a plurality of uniformly distributed nozzles arranged at the front end of the flow guide channel, a turbofan arranged at the tail end of the flow guide channel, the outlet direction of the nozzles being directed to the turbofan, an auxiliary power source installed at the upper end of the auxiliary cabin, the turbofan being electrically connected with the auxiliary power source, an air compressor installed in the auxiliary cabin, the air compressor being electrically connected with the auxiliary power source, and a high-pressure gas storage tank installed in the auxiliary cabin, the input end of the high-pressure gas storage tank being connected with the air compressor through a first gas pipe, and the output end of the high-pressure gas storage tank being communicated with the nozzles through a second gas pipe. In the case that the wind driven generator cannot normally generate power when the wind condition is poor, the high-pressure gas storage tank is used to slowly release gas and push the turbofan to generate power together with the natural wind.

Description

Technical Field

[0001] This invention belongs to the field of wind power generation technology, and specifically relates to a wind power generation system based on a wind turbine. Background Technology

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Because wind is a pollution-free energy source, and it is inexhaustible, it is highly suitable and has great potential for development in coastal islands, grassland pastoral areas, mountainous regions, and plateaus where water, fuel, and transportation are scarce or inconvenient. Furthermore, wind energy is a clean and pollution-free renewable energy source, making wind power generation very environmentally friendly, and the wind energy reserves are enormous.

[0003] Currently, when wind conditions are good, wind turbines generate abundant electricity, which is directly fed into the power grid. However, when wind conditions are poor or there is no wind, the wind turbines themselves not only cannot generate electricity, but also consume some of the power in the grid. Poor or no wind conditions can account for about 40%-50% of the year, consuming a large amount of electricity. Summary of the Invention

[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0005] A wind power generation system based on a wind turbine includes:

[0006] Two auxiliary compartments are fixedly installed on both sides of the wind turbine nacelle.

[0007] The auxiliary compartment has at least one flow channel, with multiple evenly distributed nozzles at the front end of the flow channel and a turbofan fan at the end of the flow channel. The outlet direction of the nozzles points towards the turbofan fan.

[0008] An auxiliary power supply is installed at the upper end of the auxiliary compartment, and the turbofan fan is electrically connected to the auxiliary power supply.

[0009] An air compressor is installed in the auxiliary compartment and is electrically connected to the auxiliary power supply.

[0010] A high-pressure air tank is installed in the auxiliary compartment. The input end of the high-pressure air tank is connected to the air compressor through a first air pipe, and the output end of the high-pressure air tank is connected to the nozzle through a second air pipe.

[0011] Furthermore, a mass flow control valve is provided on the second gas pipe to control the speed at which the gas is ejected from the nozzle.

[0012] Furthermore, each of the nozzles is provided with an angle adjustment mechanism, which is installed on the inner wall of the flow guide channel and is used to adjust the angle of the ejected airflow from the nozzle.

[0013] Furthermore, it also includes a control module, wherein the mass flow control valve, the air compressor, the auxiliary power supply, and the angle adjustment mechanism are all electrically connected to the control module, and the control module is electrically connected to the wind turbine control system.

[0014] Furthermore, the flow channel has a tapered structure, with the larger end of the tapered structure located on the hub side of the wind turbine.

[0015] Furthermore, the tapered structure includes a connected guide section and a conveying section. The guide section is funnel-shaped and located on the hub side of the wind turbine. The conveying section is cylindrical. The turbofan fan is located inside the conveying section.

[0016] Furthermore, it also includes a solar panel, which is mounted on top of the wind turbine nacelle and is electrically connected to the auxiliary power supply.

[0017] Furthermore, the solar panel is mounted on the top of the wind turbine nacelle via a mounting bracket, wherein one end of the mounting bracket is hinged to the wind turbine nacelle, and the other end is connected to the wind turbine nacelle at an adjustable height via a height adjustment mechanism.

[0018] Furthermore, the height adjustment mechanism is either hydraulic or pneumatic.

[0019] The beneficial effects of this invention are:

[0020] The wind power generation system based on a wind turbine provided by this invention stores electricity in an auxiliary power source when wind conditions are good by using turbofans installed on both sides of the wind turbine nacelle. When wind conditions are bad and the wind turbine cannot generate electricity normally, gas is slowly released through a high-pressure gas storage tank and used to drive the turbofans to generate electricity along with the natural wind. When there is no wind, the auxiliary power source releases electrical energy to the wind turbine for its own use, thus saving electricity and avoiding energy waste. Attached Figure Description

[0021] Figure 1 This is a front view schematic diagram of the overall structure of the present invention;

[0022] Figure 2 yes Figure 1 Enlarged view of a portion of the image (A);

[0023] Figure 3 This is a side view of the overall structure of the present invention;

[0024] Figure 4 yes Figure 3 Enlarged view of a portion of the image (B);

[0025] The components include: 1. hub; 2. blade; 3. auxiliary compartment; 4. fan blade; 5. high-pressure air tank; 6. auxiliary power supply; 7. solar panel; 8. wind turbine nacelle; 9. nozzle; 10. generator; 11. second air pipe; and 12. air compressor. Detailed Implementation

[0026] This invention provides a wind power generation system based on a wind turbine. The technical solution of this invention will be described in detail below with reference to the accompanying drawings to make it easier to understand and master.

[0027] Example 1

[0028] refer to Figure 1-4 A wind power generation system based on a wind turbine, comprising:

[0029] Two auxiliary compartments 3 are fixedly installed on both sides of the wind turbine nacelle 8; the two auxiliary compartments 3 are located in the middle of the nacelle and do not affect the normal rotation of the wind turbine blades 2.

[0030] The auxiliary compartment 3 has at least one flow channel, with multiple evenly distributed nozzles 9 at the front end of the flow channel and a turbofan fan at the end of the flow channel. The outlet direction of the nozzles 9 points towards the turbofan fan.

[0031] Auxiliary power supply 6 is installed at the upper end of auxiliary compartment 3, and the turbofan fan is electrically connected to auxiliary power supply 6.

[0032] Air compressor 12 is installed in auxiliary compartment 3 and is electrically connected to auxiliary power supply 6.

[0033] High-pressure air tank 5 is installed in auxiliary compartment 3. The input end of high-pressure air tank 5 is connected to air compressor 12 through first air pipe, and the output end of high-pressure air tank 5 is connected to nozzle 9 through second air pipe 11.

[0034] In this embodiment, each auxiliary compartment 3 is provided with two flow channels, which are arranged sequentially, one above the other.

[0035] The guide channel has a tapered structure, with the larger end of the tapered structure located on the hub side of the wind turbine.

[0036] In this embodiment, the tapered structure includes a flow guide and a conveying section connected together. The flow guide is funnel-shaped and located on the hub 1 side of the wind turbine. The conveying section is cylindrical. The turbofan fan is located inside the conveying section.

[0037] Among them, the diameter of the turbine fan blade 4 is smaller than the inner diameter of the conveying part; the generator 10 of the turbine fan is fixedly installed inside the cylinder of the conveying part, and a channel for airflow is reserved between the generator 10 and the inner wall of the cylinder of the conveying part.

[0038] In this embodiment, a mass flow control valve is provided on the second gas pipe 11 to control the speed of the gas ejected from the nozzle 9.

[0039] In this embodiment, each nozzle 9 is provided with an angle adjustment mechanism, which is installed on the inner wall of the flow guide channel and is used to adjust the angle of the ejected airflow of the nozzle 9.

[0040] In this embodiment, there are 3 nozzles 9, which are evenly distributed at the end of the flared mouth of the guide section.

[0041] In this embodiment, the air compressor 12 and the high-pressure air tank 5 are located between the two guide channels.

[0042] In this embodiment, the auxiliary power supply 6 is preferably a storage battery.

[0043] In other embodiments, the auxiliary power supply 6 may also be placed inside the nacelle of the wind turbine.

[0044] The wind power generation system based on a wind turbine provided in this embodiment also includes a control module. The mass flow control valve, air compressor 12, auxiliary power supply 6, and angle adjustment mechanism are all electrically connected to the control module, and the control module is electrically connected to the wind turbine control system.

[0045] The wind power generation system based on a wind turbine provided in this embodiment also includes a solar panel 7, which is installed on the top of the wind turbine nacelle 8 and is electrically connected to the auxiliary power supply 6.

[0046] The solar panel 7 is mounted on the top of the wind turbine nacelle 8 via a mounting bracket. One end of the mounting bracket is hinged to the wind turbine nacelle 8, and the other end is connected to the wind turbine nacelle 8 at an adjustable height via a height adjustment mechanism.

[0047] In this embodiment, the height adjustment mechanism is either hydraulic or pneumatic.

[0048] The working process of the wind power generation system based on a wind turbine provided in this embodiment is as follows:

[0049] When the wind conditions are good, while the wind turbine is generating electricity normally, the power generated by the turbofan turbines installed on both sides of the wind turbine nacelle 8 is stored in the auxiliary power supply 6.

[0050] When the wind conditions are bad and the wind turbine cannot generate electricity normally, the gas is slowly released through the high-pressure gas storage tank 5 and driven by the natural wind to generate electricity. The electricity can be directly used for the wind turbine itself.

[0051] When there is no wind, the auxiliary power supply 6 releases electrical energy to the wind turbine to power the wind turbine itself, saving electricity and avoiding energy waste; at the same time, the solar panels 7 installed on the top of the wind turbine nacelle 8 can also generate electricity normally to power the wind turbine itself, saving electricity and avoiding energy waste.

[0052] The technical solutions of the present invention have been fully described above. It should be noted that the specific embodiments of the present invention are not limited to the above description. All technical solutions formed by those skilled in the art based on the spirit and essence of the present invention by adopting equivalent transformations or equivalent transformations in terms of structure, method or function fall within the protection scope of the present invention.

Claims

1. A wind power generation system based on a wind turbine, characterized in that, include: Two auxiliary compartments are fixedly installed on both sides of the wind turbine nacelle. The auxiliary compartment has at least one flow channel, with multiple evenly distributed nozzles at the front end of the flow channel and a turbofan fan at the end of the flow channel. The outlet direction of the nozzles points towards the turbofan fan. An auxiliary power supply is installed at the upper end of the auxiliary compartment, and the turbofan fan is electrically connected to the auxiliary power supply. An air compressor is installed in the auxiliary compartment and is electrically connected to the auxiliary power supply. A high-pressure air tank is installed in the auxiliary compartment. The input end of the high-pressure air tank is connected to the air compressor through a first air pipe, and the output end of the high-pressure air tank is connected to the nozzle through a second air pipe. The flow channel has a tapered structure, with the larger end of the tapered structure located on the hub side of the wind turbine. The tapered structure includes a connected flow guide section and a conveying section. The flow guide section is funnel-shaped and located on the hub side of the wind turbine. The conveying section is cylindrical. The turbofan fan is located inside the conveying section. Working process of a wind power generation system based on a wind turbine: When the wind conditions are good, the wind turbine generates electricity normally, and the power generated by the turbofan turbines installed on both sides of the wind turbine nacelle is stored in the auxiliary power supply. When wind conditions are bad and the wind turbine cannot generate electricity normally, gas is slowly released through a high-pressure gas storage tank and used together with natural wind to drive the turbofan fan to generate electricity, which can be directly used for the wind turbine itself. When there is no wind, the auxiliary power supply releases electrical energy to the wind turbine to power the wind turbine itself; at the same time, the solar panels on the top of the wind turbine nacelle can generate electricity normally to power the wind turbine itself.

2. The wind power generation system based on a wind turbine according to claim 1, characterized in that, The second gas pipe is equipped with a mass flow control valve to control the speed at which the gas is ejected from the nozzle.

3. The wind power generation system based on a wind turbine according to claim 2, characterized in that, Each of the nozzles is provided with an angle adjustment mechanism, which is installed on the inner wall of the flow guide channel and is used to adjust the angle of the ejected airflow from the nozzle.

4. The wind power generation system based on a wind turbine according to claim 3, characterized in that, It also includes a control module, in which the mass flow control valve, the air compressor, the auxiliary power supply, and the angle adjustment mechanism are all electrically connected to the control module, and the control module is electrically connected to the wind turbine control system.

5. The wind power generation system based on a wind turbine according to claim 1, characterized in that, It also includes solar panels, which are mounted on top of the wind turbine nacelle and are electrically connected to the auxiliary power supply.

6. The wind power generation system based on a wind turbine according to claim 5, characterized in that, The solar panel is mounted on the top of the wind turbine nacelle via a mounting bracket, wherein one end of the mounting bracket is hinged to the wind turbine nacelle, and the other end is connected to the wind turbine nacelle at an adjustable height via a height adjustment mechanism.

7. The wind power generation system based on a wind turbine according to claim 6, characterized in that, The height adjustment mechanism is either hydraulic or pneumatic.

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