Wind driven generator and wind power generation system

Abstract

The invention provides a wind driven generator and a wind power generation system, and relates to the technical field of wind power generation, the wind driven generator comprises a tower, the tower is fixedly mounted on the ground, a cabin is fixedly mounted at the top of the tower, a generator set is arranged in the cabin, and the front end of an input shaft of the generator set is fixedly connected with a hub; the multiple blade bodies are distributed and installed on the hub in the circumferential direction of the hub at intervals, the blade bodies are located outside the engine room, the first heat dissipation mechanism is arranged on one side of the generator set, and the second heat dissipation mechanism is arranged on one side in the engine room. According to the wind driven generator, through the combined action of the tower, the cabin, the generator set, the hub and the blade body, wind energy is used for generating electricity, and the wind driven generator is power equipment outputting alternating current finally; and secondly, the arranged first heat dissipation mechanism dissipates heat of the generator set through cooperation of water cooling and air cooling of the second heat dissipation mechanism, and the situation that heat dissipation in the cabin is not conducted in time, the temperature in the cabin rises continuously, and consequently the operation efficiency, safety and service life of equipment are affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind power generator and a wind power generation system. Background Art

[0002] Wind turbines are generally composed of components such as wind rotors, generators (including devices), direction regulators (tail fins), towers, speed limit safety mechanisms, and energy storage devices. Wind turbines use wind power to drive the windmill blades to rotate, and then increase the speed of rotation through a speed increaser to enable the generator to generate electricity. Specifically, the wind rotor rotates under the action of wind power, converting the kinetic energy of the wind into mechanical energy of the wind rotor shaft, and the generator rotates and generates electricity driven by the wind rotor shaft; wind power generation has significant advantages, including being pollution-free, renewable, and requiring no fuel, which has led to the widespread application and promotion of wind power generation around the world.

[0003] Existing technologies, such as the invention patent CN117552923B, a wind turbine, adds a heating device and a nighttime warning device to remove ice and snow from the blades of the wind turbine and ensure the stable operation of the blades, but lacks a heat dissipation mechanism and cannot effectively dissipate heat inside the wind turbine cabin, resulting in untimely heat dissipation and continuous increase in the temperature inside the cabin, thus affecting the operating efficiency, safety and service life of the equipment. Therefore, it is urgent to design a wind turbine and system to solve the problem that a large amount of heat generated during the operation of the wind turbine is not dissipated in time, affecting the normal operation of the generator, reducing the power generation efficiency, and the high temperature environment in the cabin exacerbates the wear of mechanical components, resulting in a shortened service life of the components. Summary of the invention

[0004] The present invention provides a wind turbine generator and a wind power generation system to solve at least one of the problems raised by the above background technology.

[0005] To solve the above technical problems, the present invention discloses a wind turbine, comprising a tower, wherein the tower is fixedly mounted on the ground, a nacelle is fixedly mounted on the top of the tower, a generator set is arranged inside the nacelle, and a hub is fixedly connected to the front end of the input shaft of the generator set, a plurality of blade bodies are distributed and mounted on the hub at intervals along the circumference of the hub, the blade bodies are located outside the nacelle, a first heat dissipation mechanism is arranged on one side of the generator set, and a second heat dissipation mechanism is arranged on one side inside the nacelle.

[0006] Preferably, the first heat dissipation mechanism includes: a box body, which is fixedly installed at the bottom of the cabin, the box body is divided into a first cavity and a second cavity by a partition, and a plurality of through holes are embedded in the lower part of the partition, the water pump is fixedly installed on the inner wall of the box body, and the cooling pipe network is symmetrically arranged on the side wall of the generator set front and back, the water inlet of the cooling pipe network is connected with the water outlet of the water pump through a water inlet pipe, and the water outlet of the cooling pipe network is connected with the second cavity through a return pipe.

[0007] Preferably, it also includes a water collecting tank, which is fixedly installed on the top of the cabin, and the water outlet of the water collecting tank is connected to the first cavity through a water pipe, the water outlet of the water pipe is provided with a liquid level gauge, the electromagnetic valve is connected to the water pipe, the filter screen and the two sides of the activated carbon layer are fixedly connected to the inner wall of the first cavity, and the filter screen is arranged above the activated carbon layer.

[0008] Preferably, the second heat dissipation mechanism includes: a dustproof net, which is fixedly mounted on the inner wall on the left side of the cabin, one end of the rotating shaft rotates and passes through the dustproof net and is fixedly connected to bevel gear one, the fan is fixedly mounted on the other end of the rotating shaft, the upper end of the transmission shaft rotates and passes through the top of the cabin and is fixedly connected to the drive shaft, the lower end of the transmission shaft is fixedly mounted with bevel gear two, the bevel gear two is meshed with bevel gear one, the shell is fixedly mounted on the top of the cabin, the upper end of the drive shaft rotates and passes through the top of the shell and then fixedly mounted with two wind cups through a mounting rod, and a number of ventilation nets are embedded in the side walls of the cabin.

[0009] Preferably, a wind power generation system comprises a wind turbine generator according to any one of claims 1 to 4, characterized in that the wind power generation system further comprises:

[0010] An intelligent sensing module, the intelligent sensing module includes at least one wind speed sensor, a wind direction sensor, a temperature sensor and a humidity sensor, and is used to monitor the wind speed, wind direction, temperature and humidity data of the environment around the wind power generation system in real time;

[0011] An adaptive adjustment module, the adaptive adjustment module is connected to the intelligent sensing module, receives the real-time monitoring data transmitted by the intelligent sensing module, and predicts the wind conditions according to a preset artificial intelligence algorithm, and dynamically adjusts the angle and speed of the wind turbine blades of the wind power generation system according to the prediction results;

[0012] A high-efficiency energy conversion module, comprising a permanent magnet synchronous generator and a power electronic converter, for converting captured wind energy into electrical energy, and optimizing the quality of electrical energy and stabilizing the output through the power electronic converter;

[0013] A remote monitoring and maintenance module, which includes a cloud computing-based remote monitoring platform and a drone or robot inspection system, is used to collect real-time operating status data of the wind power generation system, perform fault warning and performance analysis, and realize remote inspection and maintenance.

[0014] Preferably, the adaptive adjustment module also includes smart material blades, which are made of shape memory alloy or piezoelectric material and can automatically adjust shape and stiffness according to wind force changes, thereby further optimizing wind energy capture efficiency.

[0015] Preferably, the high-efficiency energy conversion module also includes an energy storage system, which is used to provide power supplement when wind power is insufficient and to store excess electricity when wind power is excessive, so as to balance the supply and demand of the power grid.

[0016] Preferably, the remote monitoring and maintenance module also includes a data analysis module, which is used to perform in-depth analysis on the collected wind power generation system operating status data and provide system performance optimization suggestions and fault prediction.

[0017] Preferably, it also includes a power generation performance detection device for detecting the operating state of the gearbox inside the wind turbine nacelle, and the power generation performance detection device includes:

[0018] Speed ​​sensor 1, used to detect the rotation speed of the gear inside the gearbox of the wind turbine;

[0019] Speed ​​sensor 2, used to detect the rotation speed of the input shaft connected to the gear inside the gearbox of the wind turbine;

[0020] A controller and an alarm, wherein the controller is electrically connected to the speed sensor 1, the speed sensor 2 and the alarm, and the controller controls the alarm to work based on the speed sensor 1 and the speed sensor 2.

[0021] Preferably, the controller controls the alarm to work based on the speed sensor 1 and the speed sensor 2, including:

[0022] According to the formula and the detection values ​​of speed sensor 1 and speed sensor 2, the actual heat Q generated by the gears in the gear box in the nacelle during the operation of the wind turbine is calculated. The controller compares the actual heat Q generated by the gears in the gear box in the nacelle during the operation of the wind turbine with the preset range of heat actually generated by the gears. When the actual heat Q generated by the gears in the gear box in the nacelle exceeds the preset range of heat actually generated by the gears, the controller controls the alarm to sound an alarm:

[0023]

[0024] Among them, Q is the actual heat generated by the gears in the gearbox in the nacelle during the operation of the wind turbine, σ is the contact stress at the gear meshing point, R1 is the equivalent radius of the driving gear, R2 is the equivalent radius of the driven gear, v1 is the detection value of the gear speed inside the gearbox in the wind turbine by the speed sensor pair, v2 is the detection value of the input shaft rotation speed connected to the gear inside the gearbox of the wind turbine by the speed sensor pair, P is the contact load at the meshing point of the gear, v0 is the relative sliding speed of the gear meshing point, η is the dynamic viscosity of the lubricating oil on the gear at room temperature, R a is the roughness of the gear tooth surface.

[0025] The wind turbine and wind power generation system provided by the present invention have the following beneficial effects compared with the prior art:

[0026] 1. The above-mentioned wind turbine mechanism wind turbine uses wind energy to generate electricity through the coordinated action of the tower, nacelle, generator set, hub and blade body, and finally outputs AC power. Secondly, the first heat dissipation mechanism dissipates heat to the generator set through water cooling in combination with air cooling of the second heat dissipation mechanism, so as to avoid untimely heat dissipation inside the nacelle, which will cause the temperature inside the nacelle to continue to rise, thereby affecting the operating efficiency, safety and service life of the equipment.

[0027] 2. The above-mentioned wind power generation system develops an intelligent control system. First, through intelligent adaptive adjustment, the system can capture and utilize wind energy more accurately and improve power generation efficiency; second, through optimized design and remote monitoring and maintenance, the system construction and operation and maintenance costs can be reduced; third, through intelligent prediction and adjustment, the system fluctuations caused by wind changes can be reduced and the overall stability can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of a wind turbine provided by an embodiment of the present invention;

[0030] Figure 2 A schematic diagram of the structure of the interior of a nacelle of a wind turbine provided in an embodiment of the present invention.

[0031] Reference numerals:

[0032] 1. Tower; 2. Cabin; 3. Generator set; 4. Hub; 5. Blade body; 6. First heat dissipation mechanism; 7. Second heat dissipation mechanism; 8. Box; 9. Partition; 10. First cavity; 11. Second cavity; 12. Through hole; 13. Water pump; 14. Cooling pipe network; 15. Water inlet pipe; 16. Return pipe; 17. Water collecting tank; 18. Water pipe; 19. Liquid level gauge; 20. Solenoid valve; 21. Filter; 22. Activated carbon layer; 23. Dustproof net; 24. Rotating shaft; 25. Bevel gear one; 26. Fan; 27. Transmission shaft; 28. Drive shaft; 29. ​​Bevel gear two; 30. Shell; 31. Mounting rod; 32. Wind cup; 33. Ventilation net. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] The present invention provides the following embodiments

[0035] Example 1

[0036] The embodiment of the present invention provides a wind turbine generator, such as Figure 1-Figure 2 As shown, it includes a tower 1, which is fixedly installed on the ground, a nacelle 2 is fixedly installed on the top of the tower 1, a generator set 3 is arranged inside the nacelle 2, and a hub 4 is fixedly connected to the front end of the input shaft of the generator set 3, a plurality of blade bodies 5 are distributed and installed on the hub 4 along the circumferential spacing of the hub 4, the blade bodies 5 are located outside the nacelle 2, a first heat dissipation mechanism 6 is arranged on one side of the generator set 3, and a second heat dissipation mechanism 7 is arranged on one side inside the nacelle 2.

[0037] Preferably, the first heat dissipation mechanism 6 includes: a box body 8, the box body 8 is fixedly installed at the bottom of the cabin 2, the box body 8 is divided into a first cavity 10 and a second cavity 11 by a partition 9, and a plurality of through holes 12 are embedded in the lower part of the partition 9, a water pump 13 is fixedly installed on the inner wall of the box body 8, a cooling pipe network 14 is symmetrically arranged on the side wall of the generator set 3, the water inlet of the cooling pipe network 14 is connected with the water outlet of the water pump 13 through a water inlet pipe 15, and the water outlet of the cooling pipe network 14 is connected with the second cavity 11 through a return pipe 16.

[0038] Preferably, it also includes a water collecting tank 17, which is fixedly installed on the top of the cabin 2, and the water outlet of the water collecting tank 17 is connected to the first cavity 10 through a water pipe 18, and a liquid level meter 19 is provided at the water outlet of the water pipe 18, and an electromagnetic valve 20 is connected to the water pipe 18, and the filter screen 21 and the two sides of the activated carbon layer 22 are fixedly connected to the inner wall of the first cavity 10, and the filter screen 21 is arranged above the activated carbon layer 22.

[0039] Preferably, the second heat dissipation mechanism 7 includes: a dustproof net 23, the dustproof net 23 is fixedly installed on the inner wall of the left side of the cabin 2, one end of the rotating shaft 24 rotates through the dustproof net 23 and is fixedly connected to a bevel gear 1 25, a fan 26 is fixedly installed on the other end of the rotating shaft 24, the upper end of the transmission shaft 27 rotates through the top of the cabin 2 and is fixedly connected to a drive shaft 28, the lower end of the transmission shaft 27 is fixedly installed with a bevel gear 29, the bevel gear 29 is meshed with the bevel gear 1 25, a shell 30 is fixedly installed on the top of the cabin 2, the upper end of the drive shaft 28 rotates through the top of the shell 30 and then fixedly installed with two wind cups 32 through a mounting rod 31, and a plurality of ventilation nets 32 are embedded in the side walls of the cabin 2.

[0040] The working principle and beneficial effects of the above technical solution are:

[0041] A wind turbine of the present invention realizes the conversion of wind energy into electrical energy through the cooperation of a tower 1, a nacelle 2, a generator set 3, a hub 4 and a blade body 5, and finally outputs an electrical device of alternating current; secondly, a first heat dissipation mechanism 6 is provided to dissipate heat from the generator set 3 through water cooling in combination with air cooling of a second heat dissipation mechanism 7, so as to avoid untimely heat dissipation inside the nacelle 2, which will cause the temperature inside the nacelle 2 to continue to rise, thereby affecting the operating efficiency, safety and service life of the equipment.

[0042] The first heat dissipation mechanism 6 includes a box body 8, which is fixedly mounted at the bottom of the cabin 2. The box body 8 is divided into a first cavity 10 and a second cavity 11 by a partition 9. The first cavity 10 is a collection place for rainwater after filtration, and the second cavity 11 completes the collection of circulating water for cooling after reflux, and a plurality of through holes 12 are embedded in the lower part of the partition 9. The through holes 12 can facilitate the circulation of cooling water in the first cavity 10 and the second cavity 11. A water pump 13 is fixedly mounted on the inner wall of the box body 8. The water pump 13 can transport cooling water to the inside of a cooling pipe network 14. The cooling pipe network 14 is symmetrically arranged on the side wall of the generator set 3 front and back, which can fully cool and dissipate heat for the generator set 3 during power generation to avoid damage to internal components caused by excessive temperature of the generator set 3. The water inlet of the cooling pipe network 14 is connected to the water pump 15 through a water inlet pipe 15. The water outlet of the cooling pipe network 14 is connected to the second cavity 11 through a return pipe 16, and the return pipe 16 can recycle the water in the cooling pipe network 14 for reuse. The water collecting tank 17 is fixedly installed on the top of the cabin 2 and can be used to collect rainwater. The water outlet of the water collecting tank 17 is connected to the first cavity 10 through a water pipe 18, so that the rainwater can be collected for use as cooling water. A liquid level gauge 19 is provided at the water outlet of the water pipe 18, and an electromagnetic valve 20 is connected to the water pipe 18. The water level in the box 8 is detected by the liquid level gauge 19. When the water level is higher than the preset water level, the electromagnetic valve 20 is closed. The filter screen 21 and the two sides of the activated carbon layer 22 are fixedly connected to the inner wall of the first cavity 10, and the filter screen 21 is arranged above the activated carbon layer 22, so that the rainwater can be filtered and used as cooling water.

[0043] The second heat dissipation mechanism 7 includes the dustproof net 23 fixedly installed on the inner wall on the left side of the cabin 2, one end of the rotating shaft 24 rotates and penetrates the dustproof net 23 and is fixedly connected to a bevel gear 25, a fan 26 is fixedly installed on the other end of the rotating shaft 24, and the fan is used for heat dissipation in the cabin 2, a shell 30 is fixedly installed on the top of the cabin 2, and the upper end of the driving shaft 28 rotates and penetrates the top of the shell 30 and is fixedly installed with two wind cups 32 through a mounting rod 31, and the wind cups 32 cooperate with the mounting rod 31 to provide power for the second heat dissipation mechanism 7, and a plurality of ventilation nets are embedded in the side wall of the cabin 2 to form an air duct with the fan to accelerate The circulation of air in the cabin 2 effectively reduces the temperature in the cabin 2; at the same time, when the above-mentioned second heat dissipation mechanism 7 is working, the wind cup 32 cooperates with the mounting rod 31 under the action of wind force to drive the drive shaft 28 to rotate on the shell, and the drive shaft 28 drives the fixedly connected transmission shaft 27 to rotate, and the bevel gear 2 29 fixedly connected to the transmission shaft 27 rotates synchronously, and then the bevel gear 1 25 and the bevel gear 2 29 are meshed for transmission, so that the rotating shaft 24 fixedly connected to the bevel gear 1 25 rotates, thereby driving the fan 26 to work, thereby realizing effective heat dissipation inside the cabin 2, and the dustproof net 23 can effectively prevent dust from entering the cabin 2.

[0044] Example 2

[0045] Based on Example 1, a wind power generation system includes a wind turbine generator according to any one of Claims 1 to 4, characterized in that the wind power generation system further includes:

[0046] An intelligent sensing module, the intelligent sensing module includes at least one wind speed sensor, a wind direction sensor, a temperature sensor and a humidity sensor, and is used to monitor the wind speed, wind direction, temperature and humidity data of the environment around the wind power generation system in real time;

[0047] An adaptive adjustment module, the adaptive adjustment module is connected to the intelligent sensing module, receives the real-time monitoring data transmitted by the intelligent sensing module, and predicts the wind conditions according to a preset artificial intelligence algorithm, and dynamically adjusts the angle and speed of the wind turbine blades of the wind power generation system according to the prediction results;

[0048] A high-efficiency energy conversion module, comprising a permanent magnet synchronous generator and a power electronic converter, for converting captured wind energy into electrical energy, and optimizing the quality of electrical energy and stabilizing the output through the power electronic converter;

[0049] A remote monitoring and maintenance module, which includes a cloud computing-based remote monitoring platform and a drone or robot inspection system, is used to collect real-time operating status data of the wind power generation system, perform fault warning and performance analysis, and realize remote inspection and maintenance.

[0050] Preferably, the adaptive adjustment module also includes smart material blades, which are made of shape memory alloy or piezoelectric material and can automatically adjust shape and stiffness according to wind force changes, thereby further optimizing wind energy capture efficiency.

[0051] Preferably, the high-efficiency energy conversion module also includes an energy storage system, which is used to provide power supplement when wind power is insufficient and to store excess electricity when wind power is excessive, so as to balance the supply and demand of the power grid.

[0052] Preferably, the remote monitoring and maintenance module also includes a data analysis module, which is used to perform in-depth analysis on the collected wind power generation system operating status data and provide system performance optimization suggestions and fault prediction.

[0053] The working principle and beneficial effects of the above technical solution are:

[0054] The intelligent sensing module set up in the above-mentioned wind power generation system includes at least one wind speed sensor, a wind direction sensor, a temperature sensor and a humidity sensor, which are used to monitor the wind speed, wind direction, temperature and humidity data of the environment around the wind power generation system in real time. At the same time, laser radar or microwave radar technology can be used to realize remote wind speed prediction, and provide data support for early adjustment of the system; the adaptive adjustment module is connected to the intelligent sensing module, receives the real-time monitoring data transmitted by the intelligent sensing module, and predicts the wind conditions according to the preset artificial intelligence algorithm, and dynamically adjusts the angle and speed of the wind turbine blades of the wind power generation system according to the prediction results. Secondly, it also includes intelligent material blades, which are made of shape memory alloys or piezoelectric materials, and can automatically adjust the shape and stiffness according to wind changes, so as to further optimize the wind energy capture efficiency; efficient energy conversion The high-efficiency energy conversion module includes a permanent magnet synchronous generator and a power electronic converter, which are used to convert the captured wind energy into electrical energy, and optimize the power quality and stabilize the output through the power electronic converter. According to the high-efficiency energy conversion module, it also includes an energy storage system, which is used to provide power supplement when the wind power is insufficient, and store excess electrical energy when the wind power is excessive, so as to balance the supply and demand of the power grid; the remote monitoring and maintenance module includes a remote monitoring platform based on cloud computing and an unmanned aerial vehicle or robot inspection system, which are used to collect the operating status data of the wind power generation system in real time, perform fault warning and performance analysis, and realize remote inspection and maintenance. The remote monitoring and maintenance module also includes a data analysis module, which is used to perform in-depth analysis on the collected operating status data of the wind power generation system, and provide system performance optimization suggestions and fault prediction.

[0055] Secondly, the wind power generation system has the following advantages: First, intelligent adaptive adjustment: by integrating intelligent sensing and prediction technology, dynamic adjustment of wind turbine blades and systems can be achieved, significantly improving the efficiency of wind energy capture; second, efficient energy conversion: using advanced generator technology and energy storage system to optimize the energy conversion process and improve the quality and stability of electric energy; third, remote monitoring and maintenance: establishing a remote monitoring platform based on cloud computing, combined with drone or robot technology, to reduce operation and maintenance costs and improve system reliability.

[0056] At the same time, an intelligent control system has been developed for the wind power generation system. Through intelligent adaptive adjustment, the system can more accurately capture and utilize wind energy and improve power generation efficiency. Through optimized design and remote monitoring and maintenance, the system construction and operation and maintenance costs can be reduced. Through intelligent prediction and adjustment, system fluctuations caused by wind changes can be reduced, thereby improving overall stability.

[0057] Example 3

[0058] A wind power generation system described on the basis of embodiment 1 or 2 further includes a power generation performance detection device for detecting the operating state of the gearbox inside the wind turbine nacelle, wherein the power generation performance detection device includes:

[0059] Speed ​​sensor 1, used to detect the rotation speed of the gear inside the gearbox of the wind turbine;

[0060] Speed ​​sensor 2, used to detect the rotation speed of the input shaft connected to the gear inside the gearbox of the wind turbine;

[0061] A controller and an alarm, wherein the controller is electrically connected to the speed sensor 1, the speed sensor 2 and the alarm, and the controller controls the alarm to work based on the speed sensor 1 and the speed sensor 2.

[0062] Preferably, the controller controls the alarm to work based on the speed sensor 1 and the speed sensor 2, including:

[0063] According to the formula and the detection values ​​of speed sensor 1 and speed sensor 2, the heat Q actually generated by the gears in the gear box in the nacelle 2 during the operation of the wind turbine is calculated. The controller compares the heat Q actually generated by the gears in the gear box in the nacelle 2 during the operation of the wind turbine with the preset heat range actually generated by the gears. When the heat Q actually generated by the gears in the gear box in the nacelle 2 exceeds the preset heat range actually generated by the gears, the controller controls the alarm to sound an alarm:

[0064]

[0065] Wherein, Q is the actual heat generated by the gears in the gearbox in the nacelle 2 during the operation of the wind turbine, σ is the contact stress at the gear meshing point, R1 is the equivalent radius of the driving gear, R2 is the equivalent radius of the driven gear, v1 is the detection value of the gear speed inside the gearbox in the wind turbine by the speed sensor pair, v2 is the detection value of the input shaft rotation speed connected to the gear inside the gearbox of the wind turbine by the speed sensor pair, P is the contact load at the meshing point of the gear, v0 is the relative sliding speed of the gear meshing point, η is the dynamic viscosity of the lubricating oil on the gear at room temperature, R a is the roughness of the gear tooth surface.

[0066] The beneficial effects of the above technical solution are as follows: first, according to the formula and the detection values ​​of speed sensor 1 and speed sensor 2, the heat Q actually generated by the gears in the gearbox in the cabin during the operation of the wind turbine is calculated, and the contact stress at the gear meshing point, the equivalent radius of the driving gear, the equivalent radius of the driven gear, the rotation speed of the gear inside the gearbox of the wind turbine, the angular speed of the input shaft connected to the gear inside the gearbox of the wind turbine, the contact load of the gear at the meshing point, the relative sliding speed of the gear meshing point, the dynamic viscosity of the lubricating oil on the gear at room temperature, and the roughness of the gear tooth surface are comprehensively considered to make the calculation result more accurate and reliable.

[0067] The controller controls the operation of the speed sensor 1, the speed sensor 2 and the alarm. If the heat Q actually generated by the gears in the gear box in the cabin 2 is not within the preset range of the heat actually generated by the gears during the operation of the current wind turbine, the controller controls the alarm to sound an alarm, thereby reminding the staff to promptly inspect the gear box in the wind turbine, and perform maintenance on the gear box of the wind turbine according to the actual inspection results to maintain the use requirements of the wind turbine during wind power generation, while ensuring the stability of the operation of the wind turbine in the wind power generation system and improving the power generation efficiency of the wind turbine, and effectively improving the service life of the wind turbine, further meeting the use requirements of the wind turbine for operational reliability and stability during power generation, and by real-time monitoring of the working status of the wind turbine during operation, not only the efficiency of the wind turbine in the wind turbine system is increased, but also it is ensured that the wind turbine can be quickly discovered and repaired in time after a fault occurs.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A wind turbine, characterized in that: The invention comprises a tower (1), wherein the tower (1) is fixedly mounted on the ground, a nacelle (2) is fixedly mounted on the top of the tower (1), a generator set (3) is arranged inside the nacelle (2), and a hub (4) is fixedly connected to the front end of the input shaft of the generator set (3), a plurality of blade bodies (5) are distributed and mounted on the hub (4) at intervals along the circumference of the hub (4), the blade bodies (5) are located outside the nacelle (2), a first heat dissipation mechanism (6) is arranged on one side of the generator set (3), and a second heat dissipation mechanism (7) is arranged on one side inside the nacelle (2).

2. A wind turbine according to claim 1, characterized in that: The first heat dissipation mechanism (6) comprises: a box body (8), the box body (8) is fixedly mounted on the bottom of the cabin (2), the box body (8) is divided into a first cavity (10) and a second cavity (11) by a partition (9), and a plurality of through holes (12) are embedded in the lower part of the partition (9), a water pump (13) is fixedly mounted on the inner wall of the box body (8), a cooling pipe network (14) is symmetrically arranged on the side wall of the generator set (3) front and back, the water inlet of the cooling pipe network (14) is connected to the water outlet of the water pump (13) through a water inlet pipe (15), and the water outlet of the cooling pipe network (14) is connected to the second cavity (11) through a return pipe (16).

3. A wind turbine according to claim 2, characterized in that: The invention also comprises a water collecting tank (17), wherein the water collecting tank (17) is fixedly installed on the top of the cabin (2), and the water outlet of the water collecting tank (17) is connected to the first cavity (10) through a water supply pipe (18), a liquid level gauge (19) is provided at the water outlet of the water supply pipe (18), an electromagnetic valve (20) is connected to the water supply pipe (18), a filter screen (21) and two sides of an activated carbon layer (22) are fixedly connected to the inner wall of the first cavity (10), and the filter screen (21) is arranged above the activated carbon layer (22).

4. A wind turbine according to claim 1, characterized in that: The second heat dissipation mechanism (7) comprises: a dustproof net (23), the dustproof net (23) is fixedly mounted on the inner wall of the left side of the cabin (2), one end of the rotating shaft (24) rotates through the dustproof net (23) and is fixedly connected to a bevel gear 1 (25), a fan (26) is fixedly mounted on the other end of the rotating shaft (24), the upper end of the transmission shaft (27) rotates through the top of the cabin (2) and is fixedly connected to a drive shaft (28), the lower end of the transmission shaft (27) is fixedly mounted with a bevel gear 2 (29), the bevel gear 2 (29) is meshed with the bevel gear 1 (25), a shell (30) is fixedly mounted on the top of the cabin (2), the upper end of the drive shaft (28) rotates through the top of the shell (30) and then is fixedly mounted with two wind cups (32) through a mounting rod (31), and a plurality of ventilation nets (33) are embedded in the side wall of the cabin (2).

5. A wind power generation system, comprising a wind power generator according to any one of claims 1 to 4, characterized in that: The wind power generation system further comprises: An intelligent sensing module, the intelligent sensing module includes at least one wind speed sensor, a wind direction sensor, a temperature sensor and a humidity sensor, and is used to monitor the wind speed, wind direction, temperature and humidity data of the environment around the wind power generation system in real time; An adaptive adjustment module, the adaptive adjustment module is connected to the intelligent sensing module, receives the real-time monitoring data transmitted by the intelligent sensing module, and predicts the wind conditions according to a preset artificial intelligence algorithm, and dynamically adjusts the angle and speed of the wind turbine blades of the wind power generation system according to the prediction results; A high-efficiency energy conversion module, comprising a permanent magnet synchronous generator and a power electronic converter, for converting captured wind energy into electrical energy, and optimizing the quality of electrical energy and stabilizing the output through the power electronic converter; A remote monitoring and maintenance module, which includes a cloud computing-based remote monitoring platform and a drone or robot inspection system, is used to collect real-time operating status data of the wind power generation system, perform fault warning and performance analysis, and realize remote inspection and maintenance.

6. A wind power generation system according to claim 5, characterized in that: The adaptive adjustment module also includes smart material blades, which are made of shape memory alloy or piezoelectric material and can automatically adjust shape and stiffness according to wind force changes, thereby further optimizing wind energy capture efficiency.

7. A wind power generation system according to claim 5, characterized in that: The high-efficiency energy conversion module also includes an energy storage system, which is used to provide power supplement when wind power is insufficient and to store excess electric energy when wind power is excessive, so as to balance the supply and demand of the power grid.

8. A wind power generation system according to claim 5, characterized in that: The remote monitoring and maintenance module also includes a data analysis module, which is used to perform in-depth analysis on the collected wind power generation system operating status data and provide system performance optimization suggestions and fault prediction.

9. A wind power generation system according to claim 5, characterized in that: It also includes a power generation performance detection device for detecting the operating state of the gear box inside the wind turbine nacelle, and the power generation performance detection device includes: Speed ​​sensor 1, used to detect the rotation speed of the gear inside the gearbox of the wind turbine; Speed ​​sensor 2, used to detect the rotation speed of the input shaft connected to the gear inside the gearbox of the wind turbine; A controller and an alarm, wherein the controller is electrically connected to the speed sensor 1, the speed sensor 2 and the alarm, and the controller controls the alarm to work based on the speed sensor 1 and the speed sensor 2.

10. A wind power generation system according to claim 9, characterized in that: The controller controls the alarm to work based on the speed sensor 1 and the speed sensor 2, including: The heat Q actually generated by the gears in the gear box in the nacelle (2) during the operation of the wind turbine generator is calculated according to the formula and the detection values ​​of the speed sensor 1 and the speed sensor 2. The controller compares the heat Q actually generated by the gears in the gear box in the nacelle (2) during the operation of the wind turbine generator with a preset range of heat actually generated by the gears. When the heat Q actually generated by the gears in the gear box in the nacelle (2) exceeds the preset range of heat actually generated by the gears, the controller controls the alarm to sound an alarm: Wherein, Q is the actual heat generated by the gears in the gearbox in the nacelle (2) during the operation of the wind turbine, σ is the contact stress at the gear meshing point, R1 is the equivalent radius of the driving gear, R2 is the equivalent radius of the driven gear, v1 is the detection value of the rotation speed of the gear inside the gearbox in the wind turbine by the speed sensor pair, v2 is the detection value of the rotation speed of the input shaft connected to the gear inside the gearbox of the wind turbine by the speed sensor pair, P is the contact load at the meshing point of the gear, v0 is the relative sliding speed of the gear meshing point, η is the dynamic viscosity of the lubricating oil on the gear at room temperature, R a is the roughness of the gear tooth surface.

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