Heat dissipation method and device for wind turbine

Abstract

The present application provides a heat dissipation method and device for a wind turbine, relating to the field of wind power generation. The method includes: when the operating temperature of the wind turbine meets a preset heat dissipation condition, obtaining the operating condition parameters of the wind turbine; determining the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters according to the operating condition parameters; adjusting the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameters to increase the air flow rate flowing through the heat dissipation device; wherein, the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device. The heat dissipation method and device for a wind turbine provided by the present application are used to improve the heat dissipation efficiency of the heat dissipation device of the wind turbine, so that the heat dissipation device is always in the best heat dissipation state.

Description

Technical Field

[0001] The present application relates to the field of wind power generation, and particularly to a heat dissipation method and device for a wind turbine generator set. Background Art

[0002] Wind power generation refers to converting the kinetic energy of wind into electrical energy. Wind energy is a clean, pollution-free and renewable energy source. Utilizing wind power generation is very environmentally friendly, and the wind energy reserve is huge. Wind power generation is inseparable from wind turbine generator sets, which mainly rely on converting mechanical energy into electrical energy.

[0003] With the gradual increase in the power of wind turbine generator sets, the heat generation of heat-generating components such as gearboxes, motors or converters becomes more and more serious. In related technologies, some manufacturers use an air-water cooling system for heat dissipation. A number of heat dissipation plates are connected in a row and placed in the external environment at the top of the nacelle, and rely on natural wind blowing through the heat dissipation plates with coolant inside to achieve convective heat transfer.

[0004] However, such a heat dissipation method does not consider the disturbance of the airflow by the blades, resulting in a large deviation between the inflow angle of the airflow flowing through the heat dissipation plates and the placement angle of the heat dissipation plates, seriously affecting the heat dissipation efficiency. Summary of the Invention

[0005] The purpose of the present application is to provide a heat dissipation method and device for a wind turbine generator set, which are used to improve the heat dissipation efficiency of the heat dissipation device of the wind turbine generator set, so that the heat dissipation device is always in the best heat dissipation state.

[0006] The present application provides a heat dissipation method for a wind turbine generator set, which is applied to the wind turbine generator set and includes:

[0007] When the operating temperature of the wind turbine generator set meets the preset heat dissipation condition, obtain the operating condition parameters of the wind turbine generator set; according to the operating condition parameters, determine the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters; according to the heat dissipation plate angle parameters, adjust the angle of each heat dissipation plate of the heat dissipation device to increase the air flow rate flowing through the heat dissipation device; wherein, the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device.

[0008] Optionally, the obtaining the external environment parameters of the nacelle of the wind turbine generator set when the operating temperature of the wind turbine generator set meets the preset heat dissipation condition includes: when the operating temperature of the wind turbine generator set exceeds the preset temperature threshold, or the rising rate of the operating temperature of the wind turbine generator set exceeds the preset rate threshold, obtain the external environment parameters of the nacelle of the wind turbine generator set.

[0009] Optionally, the heat dissipation plate angle parameter is determined based on a target relationship look-up table; before determining the heat dissipation plate angle parameter of the heat dissipation device corresponding to the operating condition parameter according to the external cabin environment parameter, the method further includes: obtaining the air inflow angle of each heat dissipation plate of the heat dissipation device under different operating condition parameters of the wind turbine, and obtaining an air inflow angle set corresponding to each heat dissipation plate under each operating condition parameter; determining the corresponding angle of each heat dissipation plate under different air inflow angles according to the air inflow angle set corresponding to each heat dissipation plate of the wind turbine under different operating condition parameters, and generating the target relationship look-up table; wherein, the operating condition parameters of the wind turbine include: the air density outside the cabin of the wind turbine, the wind direction and wind speed outside the cabin of the wind turbine, the air temperature outside the cabin of the wind turbine, the rotational speed of the wind turbine rotor of the wind turbine, and the blade airfoil of the wind turbine.

[0010] Optionally, determining the corresponding angle of each heat dissipation plate under different air inflow angles according to the air inflow angle set corresponding to each heat dissipation plate of the wind turbine under different operating condition parameters includes: determining the change rule of the air inflow angle of each heat dissipation plate under the target operating condition parameter according to the air inflow angle set corresponding to each heat dissipation plate under the target operating condition parameter; wherein, the target operating condition parameter is any one of the different operating condition parameters; and the change rule is related to the rotational state of the wind turbine rotor.

[0011] Optionally, determining the corresponding angle of each heat dissipation plate under different air inflow angles according to the air inflow angle of each heat dissipation plate of the wind turbine under different operating condition parameters, and generating the target relationship look-up table includes: determining the angle adjustment rule of each heat dissipation plate according to the change rule of the air inflow angle of the air flowing through each heat dissipation plate.

[0012] Optionally, adjusting the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameter includes: periodically adjusting the angle of each heat dissipation plate of the heat dissipation device according to the rotational state of the wind turbine rotor and the angle adjustment rule of each heat dissipation plate.

[0013] This application also provides a heat dissipation device for a wind turbine, including:

[0014] An acquisition module, configured to acquire the operating condition parameters of the wind turbine when the operating temperature of the wind turbine meets a preset heat dissipation condition; a determination module, configured to determine the heat dissipation plate angle parameter of the heat dissipation device corresponding to the operating condition parameter according to the operating condition parameter; an adjustment module, configured to adjust the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameter to increase the air flow rate flowing through the heat dissipation device; wherein, the heat dissipation plate angle parameter includes the angle parameter of each heat dissipation plate of the heat dissipation device.

[0015] Optionally, the obtaining module is specifically configured to obtain the external environment parameters of the wind turbine when the operating temperature of the wind turbine exceeds a preset temperature threshold, or when the rising rate of the operating temperature of the wind turbine exceeds a preset rate threshold.

[0016] Optionally, the heat dissipation plate angle parameter is determined based on a target relationship look-up table; the obtaining module is further configured to obtain the air inflow angle of each heat dissipation plate of the heat dissipation device of the wind turbine under different operating condition parameters, and obtain an air inflow angle set corresponding to each heat dissipation plate under each operating condition parameter; the determining module is configured to determine the angles corresponding to each heat dissipation plate at different air inflow angles according to the air inflow angle sets corresponding to each heat dissipation plate of the wind turbine under different operating condition parameters, and generate the target relationship look-up table; wherein, the operating condition parameters of the wind turbine include: the air density outside the cabin of the wind turbine, the wind direction and wind speed outside the cabin of the wind turbine, the air temperature outside the cabin of the wind turbine, the rotational speed of the wind turbine rotor of the wind turbine, and the blade airfoil of the wind turbine.

[0017] Optionally, the determining module is specifically configured to determine the variation law of the air inflow angle of each heat dissipation plate under the target operating condition parameters according to the air inflow angle sets corresponding to each heat dissipation plate under the target operating condition parameters; wherein, the target operating condition parameters are any one of the different operating condition parameters; the variation law is related to the rotational state of the wind turbine rotor of the wind turbine.

[0018] Optionally, the determining module is specifically configured to determine the angle adjustment law of each heat dissipation plate according to the variation law of the air inflow angle of the air flowing through each heat dissipation plate.

[0019] Optionally, the adjusting module is specifically configured to periodically adjust the angles of each heat dissipation plate of the heat dissipation device according to the rotational state of the wind turbine rotor and the angle adjustment law of each heat dissipation plate.

[0020] The present application also provides a computer program product, including a computer program / instructions, which when executed by a processor, implement the steps of the heat dissipation method of the wind turbine as described in any one of the above.

[0021] The present application also provides an electronic device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the program, the steps of the heat dissipation method of the wind turbine as described in any one of the above are implemented.

[0022] The present application also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the heat dissipation method of the wind turbine as described in any one of the above are implemented.

[0023] The heat dissipation method and device for a wind turbine provided by this application obtain the ambient parameters outside the nacelle of the wind turbine when the operating temperature of the wind turbine meets the preset heat dissipation conditions. Subsequently, according to the ambient parameters outside the nacelle, the heat dissipation plate angle parameters of the heat dissipation device corresponding to the ambient parameters outside the nacelle are determined from the target relationship comparison table. Finally, according to the heat dissipation plate angle parameters, the angles of each heat dissipation plate of the heat dissipation device are adjusted so that the heat dissipation efficiency of the heat dissipation device of the wind turbine is always at a relatively high level. Description of the Drawings

[0024] In order to more clearly illustrate the technical solutions in this application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 is a schematic structural diagram of the wind turbine provided by this application;

[0026] Figure 2 is a schematic flowchart of the heat dissipation method for the wind turbine provided by this application;

[0027] Figure 3 is a schematic diagram of the influence of the blade on the airflow flowing through the heat dissipation device;

[0028] Figure 4 is a schematic diagram of the variation law of the air inflow angle flowing through the heat dissipation fins;

[0029] Figure 5 is a schematic structural diagram of the heat dissipation device of the wind turbine provided by this application;

[0030] Figure 6 is a schematic structural diagram of the electronic device provided by this application. Detailed Embodiments

[0031] To make the objectives, technical solutions, and advantages of this application clearer, the following will clearly and completely describe the technical solutions in this application in conjunction with the drawings in this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in this application belong to the scope of protection of this application.

[0032] The terms "first", "second", etc. in the description and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0033] Wind power generation converts the kinetic energy of the wind into mechanical kinetic energy and then converts the mechanical energy into electrical kinetic energy. The principle of wind power generation is to use the wind to drive the blades of the wind turbine to rotate, and then increase the rotation speed through a speed increaser to drive the generator to generate electricity. According to windmill technology, a breeze speed of about three meters per second (the degree of a gentle breeze) can start generating electricity. Wind power generation does not require the use of fuel and does not produce radiation or air pollution, and is very environmentally friendly compared to thermal power generation using coal combustion.

[0034] The device required for wind power generation is called a wind power generation unit (hereinafter referred to as "wind turbine"). As Figure 1 shown, the wind turbine can be divided into three parts: the wind wheel A (including the tail rudder), the generator, and the tower barrel. The wind wheel is an important component that converts the kinetic energy of the wind into mechanical energy and is composed of several blades. When the wind blows towards the blade B, an aerodynamic force is generated on the blade B to drive the wind wheel to rotate. At the same time, the heat generated by the wind turbine is transferred to the air through the heat dissipation device c arranged outside the wind turbine cabin. Since the rotation speed of the wind wheel is relatively low and the magnitude and direction of the wind force often change, which also makes the rotation speed unstable; therefore, before driving the generator, a gearbox that increases the rotation speed to the rated rotation speed of the generator must be added, and a speed regulating mechanism is added to keep the rotation speed stable, and then it is connected to the generator. To keep the wind wheel always aligned with the wind direction to obtain the maximum power, a tail rudder similar to a wind vane needs to be installed behind the wind wheel. The iron tower is a framework that supports the wind wheel, the tail rudder, and the generator. It is generally built relatively high to obtain a larger and more uniform wind force and have sufficient strength. The height of the iron tower depends on the influence of ground obstacles on the wind speed and the diameter of the wind wheel, and is usually in the range of dozens of meters or even hundreds of meters. The role of the generator is to convert the mechanical energy obtained from the wind wheel into electrical energy.

[0035] In the related art, the out-of-cabin water-cooled heat dissipation device of a wind turbine uses a number of heat dissipation plates, and all the heat dissipation plates face the front of the nacelle, so that the air flow quickly passes through the gaps between the heat dissipation plates, taking away the heat generated by the wind turbine. When the wind turbine is operating, due to the action of the yaw system, the nacelle can always face the wind, so that the heat dissipation plates always face the main wind direction, achieving effective heat dissipation.

[0036] However, the air flow passing through the heat dissipation plates will first pass through the rotating blades, so the air flow will be disturbed and blocked by the blades, and it is difficult to quickly pass through the gaps between the heat dissipation plates after reaching the heat dissipation plates, making the heat dissipation plates not always reach the optimal heat dissipation efficiency.

[0037] The following will combine the accompanying drawings to explain in detail the heat dissipation method of the wind turbine provided by the embodiments of the present application through specific embodiments and their application scenarios.

[0038] As Figure 2 shown, a heat dissipation method of a wind turbine provided by an embodiment of the present application may include the following steps 201 to step 203:

[0039] Step 201, when the operating temperature of the wind turbine meets the preset heat dissipation condition, obtain the operating parameters of the wind turbine.

[0040] Among them, the operating parameters of the wind turbine may include: the out-of-cabin air density of the wind turbine, the out-of-cabin wind direction and wind speed of the wind turbine, the out-of-cabin air temperature of the wind turbine, the wind wheel speed of the wind turbine, and the blade airfoil of the wind turbine.

[0041] It should be noted that the operating parameters of the wind turbine may also include: the nacelle structure of the wind turbine, the heat dissipation device structure, the wind wheel structure, the heat dissipation plate structure, the heat dissipation plate medium, etc. In the embodiments of the present application, the corresponding heat dissipation plate angle parameters can be matched from the target relationship comparison table through the above four parameters of the out-of-cabin air density of the wind turbine, the out-of-cabin air temperature of the wind turbine, the wind wheel speed of the wind turbine, and the blade airfoil of the wind turbine.

[0042] Exemplarily, in order to avoid frequent adjustment of the heat dissipation device of the wind turbine, the heat dissipation device can be adjusted when the operating temperature of the wind turbine meets the preset heat dissipation condition to improve the heat dissipation efficiency of the heat dissipation device.

[0043] Specifically, the above step 201 may include the following step 201a:

[0044] Step 201a, when the operating temperature of the wind turbine exceeds the preset temperature threshold, or when the rising rate of the operating temperature of the wind turbine exceeds the preset rate threshold, obtain the operating parameters of the wind turbine.

[0045] It is understandable that when the wind turbine is in the power generation state, it is usually within the normal working range. Even if the heat dissipation device is not adjusted, the normal heat dissipation of the wind turbine can be ensured. However, when the wind speed increases, the power generation power of the wind turbine also increases, directly resulting in an increase in the working temperature of the generator set. If the temperature rises to a certain extent, it is necessary to adjust the heat dissipation device to improve the heat dissipation efficiency.

[0046] Exemplarily, when the working temperature of the wind turbine exceeds the preset temperature threshold, it indicates that the working temperature of the wind turbine is too high and it is necessary to reduce the working temperature of the wind turbine to the normal level; when the rising rate of the working temperature of the wind turbine exceeds the preset rate threshold, it indicates that the rising speed of the working temperature of the wind turbine is too fast. In order to avoid the working temperature of the wind turbine from being too high, it can be cooled in advance.

[0047] Exemplarily, the above-mentioned external environment parameters of the cabin may include:

[0048] Step 202: Determine the heat dissipation plate angle parameters of the heat dissipation device corresponding to the working condition parameters according to the working condition parameters.

[0049] Wherein, the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device.

[0050] Specifically, the above-mentioned heat dissipation plate angle parameters are determined based on the target relationship comparison table.

[0051] It is understandable that since the above-mentioned heat dissipation device is arranged outside the cabin of the wind turbine, it is necessary to adjust the heat dissipation device according to the external environment parameters of the cabin of the wind turbine.

[0052] It should be noted that in the embodiments of the present application, the adjustment of the heat dissipation device includes adjusting the angle of the heat dissipation plate of the heat dissipation device. The angles of each heat dissipation plate of the heat dissipation device can be adjusted separately.

[0053] Step 203: Adjust the angles of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameters to increase the air flow rate flowing through the heat dissipation device.

[0054] Exemplarily, after obtaining the current working condition parameters of the wind turbine, the heat dissipation plate angle parameters corresponding to the current working condition parameters can be determined from the target relationship comparison table, and the angles of each heat dissipation plate of the heat dissipation device can be adjusted according to the heat dissipation plate angle parameters.

[0055] It should be noted that the above-mentioned target relationship table includes the angles corresponding to each heat dissipation plate under different working condition parameters. Therefore, among the above-mentioned heat dissipation plate angle parameters, the adjustment angles of different heat dissipation plates may be different, and there may also be heat dissipation plates with an adjustment angle of 0°, that is, heat dissipation plates that do not undergo angle adjustment.

[0056] Optionally, in the embodiments of the present application, the above-mentioned target relationship table can be obtained by collecting historical data or through simulation.

[0057] Exemplarily, since the wind turbine structures of different wind turbines are different, the rotational speeds of the wind wheels may be different under the same wind speed. Therefore, the target relationship tables corresponding to different wind turbines are not exactly the same, and one wind turbine corresponds to one target relationship table.

[0058] Specifically, the target relationship table in step 202 can be obtained through the following steps. That is, before step 202, the heat dissipation method of the wind turbine provided in the embodiments of the present application may include the following steps 204 and 205:

[0059] Step 204: Obtain the air inlet angle of each heat dissipation plate of the heat dissipation device of the wind turbine under different operating condition parameters, and obtain the set of air inlet angles corresponding to each heat dissipation plate under each operating condition parameter.

[0060] Exemplarily, the above-mentioned air inlet angle is the inlet angle of the air flow passing through the heat dissipation plate.

[0061] Step 205: Determine the angles corresponding to each heat dissipation plate at different air inlet angles according to the set of air inlet angles corresponding to each heat dissipation plate of the wind turbine under different operating condition parameters, and generate the target relationship comparison table.

[0062] Wherein, the operating condition parameters of the wind turbine include: the air density outside the nacelle of the wind turbine, the wind direction and wind speed outside the nacelle of the wind turbine, the air temperature outside the nacelle of the wind turbine, the rotational speed of the wind wheel of the wind turbine, and the blade airfoil of the wind turbine.

[0063] Exemplarily, in order to obtain the above-mentioned target relationship table, it is necessary to obtain the air inlet angle of each heat dissipation plate of the heat dissipation device of the wind turbine under different operating condition parameters, and obtain the set of air inlet angles corresponding to each heat dissipation plate under each operating condition parameter. Then, according to the set of air inlet angles corresponding to each heat dissipation plate, determine the placement angle at which each heat dissipation plate can obtain the best heat dissipation efficiency.

[0064] It can be understood that, under the condition that the operating condition parameters remain unchanged, the air inlet angles of the same heat dissipation plate obtained at different times may be different. Therefore, multiple air inlet angles of the same heat dissipation plate within a certain period of time can be obtained, and then the set of air inlet angles corresponding to the heat dissipation plate can be obtained.

[0065] For example, as Figure 3 shown, it is a schematic diagram of the influence of the blade on the air flow passing through the heat dissipation device provided by the embodiments of the present application. As Figure 3As shown in (A), when the blade does not disturb the air flow, the air flow passing through the radiator can directly blow the surface of the heat dissipation plate and take away the heat at the same time. At this time, the heat dissipation efficiency of the heat dissipation plate is the highest; as Figure 3 As shown in (B), when the blade disturbs the air flow, the air flow forms turbulence after passing through the blade and it is difficult to smoothly pass through the gap between the heat dissipation plates. At this time, it is necessary to adjust the angle of the heat dissipation plate so that the air flow can pass through smoothly; as Figure 3 As shown in (C), after adjusting the angle of the heat dissipation plate according to the inflow angle of the air flow, the air flow can smoothly pass through the gap between the heat dissipation plates.

[0066] It should be noted that, as Figure 3 The schematic diagram shown is only for facilitating the understanding of the heat dissipation method of the wind turbine provided by the embodiment of the present application and does not represent the actual situation.

[0067] Exemplarily, in the embodiment of the present application, the inflow angle of the air flow passing through each heat dissipation plate can be obtained by collecting data through a sensor, or can be obtained through Computational Fluid Dynamics (CFD) simulation.

[0068] Exemplarily, in the case of obtaining the relevant parameters in the above target relationship table by collecting data through a sensor, the environmental sensor can collect the surrounding environmental parameters of the wind turbine, such as wind force, wind direction, air density, wind shear, etc.; the wind speed and wind direction sensor arranged in front of the heat dissipation plate can collect the inflow angle of the air flow passing through each heat dissipation plate. The above inflow angle can be the average value within a statistical period.

[0069] Exemplarily, in the case of obtaining the relevant parameters in the above target relationship table through computational fluid dynamics simulation, the inflow angle of the dynamic air flow passing through the out-of-cabin water-cooled heat dissipation plate can be calculated. The cabin structure, the wind turbine structure, and the out-of-cabin water-cooled structure are established in the air flow field, and at the same time, the rotation of the wind turbine, the blade airfoil, the solid model of the heat dissipation plate or the equivalent porous medium model, etc. are considered. Based on the rated speed and the rated wind speed, the simulation data with the calculation duration satisfying that the wind turbine rotates not less than a preset number of turns (usually 3 turns) is calculated to obtain the inflow angle of the air flow passing through each heat dissipation plate. The inflow angle can be the average inflow angle during the simulation process.

[0070] Furthermore, in order to obtain a better solution, the simulation results can also be iterated. Specifically, after repeating the above simulation steps a preset number of times, the final result is obtained.

[0071] In a possible implementation manner, since the disturbance of the air flow by the wind turbine shows a periodic change, therefore, the angle of the heat dissipation plate can be adjusted according to the change rule of the air flow passing through the heat dissipation plate.

[0072] Specifically, step 205 described above may include the following steps 205a:

[0073] Step 205a: Determine the variation law of the air inflow angle of each heat dissipation plate under the target operating condition parameters according to the set of air inflow angles corresponding to each heat dissipation plate under the target operating condition parameters.

[0074] Wherein, the target operating condition parameters are any one of the different operating condition parameters; the variation law is related to the rotational state of the wind turbine rotor.

[0075] Exemplarily, the variation law of the air inflow angle of each heat dissipation plate can be obtained by two methods of obtaining the inflow angle.

[0076] For example, as Figure 4 shown, it is a schematic diagram of the variation law of the air inflow angle of any heat dissipation fin of the heat dissipation device. It can be seen from Figure 4 that affected by the wind turbine rotor, the air inflow angle flowing through the heat dissipation fin shows a certain variation law. Figure 4 Each protruding part in it is the result of the air disturbance by the blades.

[0077] Further, after the above step 205a, step 205 described above may further include the following steps 205b:

[0078] Step 205b: Determine the angle adjustment law of each heat dissipation plate under the target operating condition parameters according to the variation law of the air inflow angle flowing through each heat dissipation plate under the target operating condition parameters.

[0079] It can be understood that since the air inflow angle flowing through each heat dissipation plate has a certain variation law, the angle of each heat dissipation plate can also be adjusted regularly according to this variation law.

[0080] It should be noted that the set of air inflow angles corresponding to each heat dissipation plate under each operating condition parameter among the above different operating condition parameters can be obtained according to the method of obtaining the set of air inflow angles corresponding to each heat dissipation plate under the target operating condition parameters.

[0081] Specifically, based on the above steps 205a and 205b, step 203 described above may include the following steps 203a:

[0082] Step 203a: Periodically adjust the angle of each heat dissipation plate of the heat dissipation device according to the rotational state of the wind turbine rotor and the angle adjustment law of each heat dissipation plate.

[0083] Exemplarily, after determining the angle adjustment rule for each heat dissipation plate, the angle of each heat dissipation plate can be adjusted according to the rotation state of the wind turbine and the angle adjustment rule of each heat dissipation plate, so that the heat dissipation efficiency of the radiator is always at a relatively high level.

[0084] For the heat dissipation method of the wind turbine provided by the embodiment of the present application, when the working temperature of the wind turbine meets the preset heat dissipation condition, the external environment parameters of the wind turbine are obtained. Then, according to the external environment parameters, the heat dissipation plate angle parameters of the heat dissipation device corresponding to the external environment parameters are determined from the target relationship comparison table. Finally, according to the heat dissipation plate angle parameters, the angle of each heat dissipation plate of the heat dissipation device is adjusted, so that the heat dissipation efficiency of the heat dissipation device of the wind turbine is always at a relatively high level.

[0085] It should be noted that for the heat dissipation method of the wind turbine provided by the embodiment of the present application, the execution subject can be the heat dissipation device of the wind turbine, or the control module in the heat dissipation device of the wind turbine for executing the heat dissipation method of the wind turbine. In the embodiment of the present application, taking the heat dissipation device of the wind turbine as the execution subject of the heat dissipation method of the wind turbine as an example, the heat dissipation device of the wind turbine provided by the embodiment of the present application is described.

[0086] It should be noted that in the embodiment of the present application, the heat dissipation methods of the wind turbine shown in the above various method drawings are all exemplarily described by taking one drawing in the embodiment of the present application as an example. Specifically, when implemented, the heat dissipation methods of the wind turbine shown in the above various method drawings can also be implemented in combination with any other combinable drawings schemed in the above embodiments, which will not be elaborated here.

[0087] The heat dissipation device of the wind turbine provided by the present application will be described below, and the following description can be mutually referred to the heat dissipation method of the wind turbine described above.

[0088] Figure 5 It is a schematic structural diagram of the heat dissipation device of the wind turbine provided by an embodiment of the present application, as Figure 5 shown, specifically including:

[0089] An acquisition module 501, configured to acquire the working condition parameters of the wind turbine when the working temperature of the wind turbine meets the preset heat dissipation condition; a determination module 502, configured to determine the heat dissipation plate angle parameters of the heat dissipation device corresponding to the working condition parameters according to the working condition parameters; an adjustment module 503, configured to adjust the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameters to increase the air flow rate flowing through the heat dissipation device; wherein, the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device.

[0090] Optionally, the obtaining module 501 is specifically configured to obtain the external environment parameters of the wind turbine when the operating temperature of the wind turbine exceeds a preset temperature threshold, or when the rising rate of the operating temperature of the wind turbine exceeds a preset rate threshold.

[0091] Optionally, the heat dissipation plate angle parameter is determined based on a target relationship look-up table; the obtaining module 501 is further configured to obtain the air inflow angle of each heat dissipation plate of the heat dissipation device of the wind turbine under different operating condition parameters, and obtain an air inflow angle set corresponding to each heat dissipation plate under each operating condition parameter; the determining module 502 is configured to determine the angles corresponding to each heat dissipation plate under different air inflow angles according to the air inflow angle sets corresponding to each heat dissipation plate of the wind turbine under different operating condition parameters, and generate the target relationship look-up table; wherein, the operating condition parameters of the wind turbine include: the external air density of the wind turbine, the external wind direction and wind speed of the wind turbine, the external air temperature of the wind turbine, the wind wheel speed of the wind turbine, and the blade airfoil of the wind turbine.

[0092] Optionally, the determining module 502 is specifically configured to determine the variation law of the air inflow angle of each heat dissipation plate under the target operating condition parameters according to the air inflow angle sets corresponding to each heat dissipation plate under the target operating condition parameters; wherein, the target operating condition parameters are any one of the different operating condition parameters; the variation law is related to the rotational state of the wind wheel of the wind turbine.

[0093] Optionally, the determining module 502 is specifically configured to determine the angle adjustment law of each heat dissipation plate under the target operating condition parameters according to the variation law of the air inflow angle flowing through each heat dissipation plate under the target operating condition parameters.

[0094] Optionally, the adjusting module 503 is specifically configured to periodically adjust the angles of each heat dissipation plate of the heat dissipation device according to the rotational state of the wind wheel and the angle adjustment law of each heat dissipation plate.

[0095] The heat dissipation device of the wind turbine provided in this application obtains the external environment parameters of the wind turbine when the operating temperature of the wind turbine meets the preset heat dissipation conditions. Then, according to the external environment parameters, the heat dissipation plate angle parameter of the heat dissipation device corresponding to the external environment parameters is determined from the target relationship look-up table. Finally, according to the heat dissipation plate angle parameter, the angles of each heat dissipation plate of the heat dissipation device are adjusted, so that the heat dissipation efficiency of the heat dissipation device of the wind turbine is always at a relatively high level.

[0096] Figure 6 Illustrates a schematic physical structure diagram of an electronic device, such as Figure 6As shown, the electronic device may include: a processor 610, a communications interface 620, a memory 630, and a communication bus 640. Among them, the processor 610, the communications interface 620, and the memory 630 communicate with each other through the communication bus 640. The processor 610 can call the logical instructions in the memory 630 to execute the heat dissipation method of the wind turbine. The method includes: when the operating temperature of the wind turbine meets the preset heat dissipation conditions, obtaining the operating condition parameters of the wind turbine; according to the operating condition parameters, determining the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters; according to the heat dissipation plate angle parameters, adjusting the angle of each heat dissipation plate of the heat dissipation device to increase the air flow rate flowing through the heat dissipation device; where the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device.

[0097] In addition, when the logical instructions in the above-mentioned memory 630 are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memories (ROM, Read-Only Memory), random access memories (RAM, Random Access Memory), magnetic disks, or optical discs that can store program codes.

[0098] On the other hand, the present application also provides a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. When the program instructions are executed by a computer, the computer can execute the heat dissipation method of the wind turbine provided by the above-mentioned various methods. The method includes: when the operating temperature of the wind turbine meets the preset heat dissipation conditions, obtaining the operating condition parameters of the wind turbine; according to the operating condition parameters, determining the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters; according to the heat dissipation plate angle parameters, adjusting the angle of each heat dissipation plate of the heat dissipation device to increase the air flow rate flowing through the heat dissipation device; where the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device.

[0099] In another aspect, the present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, it is configured to execute the heat dissipation method of the wind turbine provided above. The method includes: when the operating temperature of the wind turbine meets a preset heat dissipation condition, obtaining the operating condition parameters of the wind turbine; determining, according to the operating condition parameters, the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters; and adjusting the angles of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameters to increase the air flow rate flowing through the heat dissipation device; wherein the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device.

[0100] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed to multiple network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art can understand and implement it without creative efforts.

[0101] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, it can also be implemented by hardware. Based on such an understanding, the essence of the above technical solution, or the part that contributes to the prior art, can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat dissipation method for a wind turbine, characterized in that, Applied to a wind turbine, the method includes: When the operating temperature of the wind turbine meets the preset heat dissipation condition, obtain the operating condition parameters of the wind turbine; According to the operating condition parameters, determine the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters; Adjust the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameters to increase the air flow rate flowing through the heat dissipation device; Wherein, the heat dissipation plate angle parameters include the angle parameters of each heat dissipation plate of the heat dissipation device; The heat dissipation plate angle parameters are determined based on a target relationship look-up table; The method further includes: Obtain the air inflow angle of each heat dissipation plate of the heat dissipation device under different operating condition parameters of the wind turbine, and obtain the set of air inflow angles corresponding to each heat dissipation plate under each operating condition parameter; According to the set of air inflow angles corresponding to each heat dissipation plate under different operating condition parameters of the wind turbine, determine the corresponding angles of each heat dissipation plate under different air inflow angles, and generate the target relationship look-up table; The determining the corresponding angles of each heat dissipation plate under different air inflow angles according to the set of air inflow angles corresponding to each heat dissipation plate under different operating condition parameters of the wind turbine includes: According to the set of air inflow angles corresponding to each heat dissipation plate under the target operating condition parameters, determine the change rule of the air inflow angle of each heat dissipation plate under the target operating condition parameters; Wherein, the target operating condition parameter is any one of the different operating condition parameters; the change rule is related to the rotational state of the wind turbine rotor.

2. The heat dissipation method of the wind turbine unit according to claim 1, characterized in that The obtaining the external environment parameters of the nacelle of the wind turbine when the operating temperature of the wind turbine meets the preset heat dissipation condition includes: When the operating temperature of the wind turbine exceeds the preset temperature threshold, or when the rising rate of the operating temperature of the wind turbine exceeds the preset rate threshold, obtain the external environment parameters of the nacelle of the wind turbine.

3. The heat dissipation method of the wind turbine according to claim 1, characterized in that, The operating condition parameters of the wind turbine include: the external air density of the wind turbine, the external wind direction and wind speed of the wind turbine, the external air temperature of the wind turbine, the wind turbine rotor speed, the blade airfoil of the wind turbine.

4. The heat dissipation method of the wind turbine according to claim 1, wherein After determining the change rule of the air inflow angle of each heat dissipation plate under the target operating condition parameters according to the set of air inflow angles corresponding to each heat dissipation plate under the target operating condition parameters, the method further includes: According to the change rule of the air inflow angle flowing through each heat dissipation plate under the target operating condition parameters, determine the angle adjustment rule of each heat dissipation plate under the target operating condition parameters.

5. The heat dissipation method of the wind turbine according to claim 4, wherein The adjusting the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameters includes: According to the rotational state of the wind turbine rotor and the angle adjustment rule of each heat dissipation plate, periodically adjust the angle of each heat dissipation plate of the heat dissipation device.

6. A heat dissipation device for a wind turbine, characterized in that, The device includes: An acquisition module, configured to obtain the operating condition parameters of the wind turbine when the operating temperature of the wind turbine meets the preset heat dissipation condition; A determination module, configured to determine the heat dissipation plate angle parameters of the heat dissipation device corresponding to the operating condition parameters according to the operating condition parameters; An adjustment module, configured to adjust the angle of each heat dissipation plate of the heat dissipation device according to the heat dissipation plate angle parameter, so as to increase the air flow rate flowing through the heat dissipation device; Wherein, the heat dissipation plate angle parameter includes the angle parameter of each heat dissipation plate of the heat dissipation device; The heat dissipation plate angle parameter is determined based on a target relationship look-up table; The acquisition module is further configured to acquire the air inflow angle of each heat dissipation plate of the heat dissipation device under different operating condition parameters of the wind turbine generator set, and obtain an air inflow angle set corresponding to each heat dissipation plate under each operating condition parameter; The determination module is configured to determine the angle corresponding to each heat dissipation plate under different air inflow angles according to the air inflow angle set corresponding to each heat dissipation plate of the wind turbine generator set under different operating condition parameters, and generate the target relationship look-up table; The determination module is specifically configured to determine the variation law of the air inflow angle of each heat dissipation plate under the target operating condition parameters according to the air inflow angle set corresponding to each heat dissipation plate under the target operating condition parameters; Wherein, the target operating condition parameter is any one of the different operating condition parameters; the variation law is related to the rotational state of the wind wheel of the wind turbine generator set.

7. The heat dissipation device of the wind turbine generator set according to claim 6, wherein The acquisition module is specifically configured to acquire the out-of-cabin environment parameters of the wind turbine generator set when the operating temperature of the wind turbine generator set exceeds a preset temperature threshold, or when the rising rate of the operating temperature of the wind turbine generator set exceeds a preset rate threshold.

8. The heat dissipation device of the wind turbine according to claim 6, characterized in that, The operating condition parameters of the wind turbine generator set include: the out-of-cabin air density of the wind turbine generator set, the out-of-cabin wind direction and wind speed of the wind turbine generator set, the out-of-cabin air temperature of the wind turbine generator set, the wind wheel speed of the wind turbine generator set, and the blade airfoil of the wind turbine generator set.

9. A wind turbine unit, characterized in that, It includes a memory, a processor, and a computer program stored on the memory and executable on the processor. When the processor executes the program, it implements the steps of the heat dissipation method of the wind turbine generator set according to any one of claims 1 to 5.

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