A wind turbine blade anti-icing system, method, device and storage medium

Abstract

The present invention relates to the field of wind power generation technology, and discloses a wind turbine blade anti-icing and de-icing system, method, equipment and storage medium. The present invention obtains multiple environmental data and ice coverage data on the surface of the wind turbine blade by a sensor module installed on the surface of the heating module, and then the control module controls the heating module to perform anti-icing or de-icing operations for the wind turbine blade through the received multiple environmental data and ice coverage data, thereby realizing the anti-icing and de-icing of the wind turbine. At the same time, the heating module adopts a detachable wearable structure, which can be installed on the surface of the wind turbine blade only during the ice coverage period, and can be disassembled at other times, which has little impact on the wind turbine. Since there are fewer thunderstorms in winter, there is no risk of attracting lightning, and the safety is high. Furthermore, installing the heating module on the surface of the wind turbine blade can improve the anti-icing or de-icing efficiency. Therefore, by implementing the present invention, the anti-icing and de-icing of wind turbines can be achieved more safely, efficiently and economically.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and in particular to a wind turbine blade anti-icing system, method, equipment and storage medium. Background Art

[0002] Wind farms are generally located in high-altitude areas with strong winds and cold weather, and it is very easy for wind turbine blades to freeze in winter. The freezing of wind turbine blades will change the aerodynamic performance of the blades, resulting in an unbalanced mass distribution of the blades, asymmetric loads, and mechanical failures. At present, the general practice is to actively shut down the unit after the blades are covered with ice to a certain extent. However, after the large-scale wind power shutdown caused by the blades covering with ice, the power grid will be insufficient, which will bring huge risks to the dispatching and operation of the power system, and seriously affect the safe and stable operation of the power grid. At present, the more commonly used wind power deicing technologies include electric heating deicing, gas heating deicing, and external spraying of deicing liquid. Electric heating deicing arranges resistance wires, heating elements and other devices on the surface of the wind turbine blades, which increases the probability of lightning strikes on the wind turbine blades and has a greater maintenance risk; external spraying of deicing liquid requires the unit to be shut down, which has high requirements for safe flight in the air. Blade gas heating deicing requires high-power heating components, and the heating deicing efficiency is low and the economy is poor. At present, there is no anti-icing technology for wind turbine blades that can simultaneously take into account safety, efficiency and economy, and wind turbine blade deicing remains an unsolved global problem. Summary of the invention

[0003] In view of this, the present invention provides a wind turbine blade anti-icing system, method, device and storage medium to solve the current problem that wind turbine deicing requires high-power heating components, has low heating and deicing efficiency, and is poor in economy.

[0004] In a first aspect, the present invention provides a wind turbine blade anti-icing system, the system comprising: a control module, a sensor module and a heating module, the heating module adopts a detachable wearable structure and is worn on the surface of the wind turbine blade, and the sensor module is installed on the surface of the heating module;

[0005] The sensor module is used to obtain multiple environmental data and ice coverage data on the surface of the wind turbine blade, and send the multiple environmental data and ice coverage data to the control module; the control module is used to control the heating module to perform anti-icing or de-icing operations for the wind turbine blade based on the multiple environmental data and ice coverage data.

[0006] The wind turbine blade anti-icing and de-icing system provided by the present invention obtains multiple environmental data and ice coverage data on the surface of the wind turbine blade through a sensor module installed on the surface of the heating module, and then the control module controls the heating module to perform anti-icing or de-icing operations on the wind turbine blade through the received multiple environmental data and ice coverage data, thereby realizing the anti-icing and de-icing of the wind turbine. At the same time, the heating module adopts a detachable wearable structure, which can be installed on the surface of the wind turbine blade only during the ice coverage period, and can be disassembled at other times, which has little impact on the wind turbine. Since there are fewer thunderstorms in winter, there is no risk of attracting lightning, and the safety is high. Furthermore, installing the heating module on the surface of the wind turbine blade can improve the anti-icing or de-icing efficiency. Therefore, by implementing the present invention, the anti-icing and de-icing of wind turbines can be achieved more safely, efficiently and economically.

[0007] In an optional embodiment, the system further includes: a power supply module, configured to supply power to the control module and the heating module.

[0008] The wind turbine blade anti-icing system provided by the present invention supplies power to the control module and the heating module respectively through the power supply module to ensure the normal operation of the control module and the heating module.

[0009] In an optional embodiment, the sensor module is further used to obtain strain data of the heating module and send the strain data to the control module; the control module is further used to determine whether the heating module meets the preset installation requirements based on the strain data.

[0010] In the wind turbine blade anti-icing system provided by the present invention, the control module can also determine whether the heating module meets the preset installation requirements by obtaining the strain data of the heating module through the sensor module, thereby providing support for the safe and efficient use of the heating module.

[0011] In an optional embodiment, the material of the heating module is one of a fiber material with conductive function, a conductive circuit, and two layers of non-conductive material, wherein a heating element interlayer is added between the two layers of non-conductive material.

[0012] The wind turbine blade anti-icing system provided by the present invention can heat the surface of the wind turbine blade evenly or focus on heating certain areas by using a fiber material with conductive function, a conductive line, and one of two layers of non-conductive materials.

[0013] In a second aspect, the present invention provides a method for preventing and deicing blades of a wind turbine generator set, which is used in a control module in a wind turbine generator set blade anti-icing system according to the first aspect or any corresponding embodiment thereof; the method comprises:

[0014] When there is an icing period, the strain data of the heating module is obtained; based on the strain data, it is determined whether the heating module meets the preset installation requirements; when the heating module meets the preset installation requirements, multiple environmental data and icing data on the surface of the wind turbine blade are obtained; based on the multiple environmental data and icing data, the heating module is controlled to perform anti-icing or de-icing operations for the wind turbine blade.

[0015] The wind turbine blade anti-icing method provided by the present invention can determine whether the heating module meets the preset installation requirements by acquiring the strain data of the heating module when there is an ice-covering period. Furthermore, when the heating module meets the preset installation requirements, the wind turbine blade anti-icing can be achieved by acquiring a plurality of environmental data and ice-covering data on the surface of the wind turbine blade. Therefore, by implementing the present invention, the wind turbine blade anti-icing is performed using the heating module during the ice-covering period, which is safer.

[0016] In an optional implementation, controlling a heating module to perform anti-icing or de-icing operations for blades of a wind turbine based on a plurality of environmental data and ice coverage data includes:

[0017] Based on multiple environmental data and icing data, the working mode of the heating module is determined; when the working mode is the anti-icing mode, the heating module is controlled to perform anti-icing operations on the wind turbine blades; when the working mode is the de-icing mode, the heating module is controlled to perform de-icing operations on the wind turbine blades.

[0018] The wind turbine blade anti-icing method provided by the present invention can determine the current working mode of the heating module by acquiring multiple environmental data and ice coverage data, and then control the heating module to perform different operations under different working modes.

[0019] In an optional implementation, determining the working mode of the heating module based on multiple environmental data and ice coverage data includes:

[0020] Compare multiple environmental data with preset environmental thresholds respectively to obtain a first comparison result; compare the ice coverage data with the preset ice coverage threshold to obtain a second comparison result; and determine the working mode of the heating module based on the first comparison result and the second comparison result.

[0021] The wind turbine blade anti-icing method provided by the present invention can determine the current working mode of the heating module by combining a first comparison result of multiple environmental data with a preset environmental threshold and a second comparison result of icing data with a preset icing threshold, thereby providing support for controlling the heating module to perform anti-icing operations.

[0022] In a third aspect, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the wind turbine blade anti-icing method of the second aspect or any corresponding embodiment thereof by executing the computer instructions.

[0023] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the wind turbine blade anti-icing method of the second aspect or any corresponding embodiment thereof.

[0024] In a fifth aspect, the present invention provides a computer program product, comprising computer instructions for causing a computer to execute the wind turbine blade anti-icing method of the second aspect or any corresponding embodiment thereof. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 is a schematic diagram of the structural installation of a wind turbine blade anti-icing system according to an embodiment of the present invention;

[0027] Figure 2 Schematic diagram of the installation of a heating module in a wind turbine blade anti-icing and de-icing system according to an embodiment of the present invention;

[0028] Figure 3 is a schematic flow chart of a method for preventing and deicing blades of a wind turbine generator set according to an embodiment of the present invention;

[0029] Figure 4 is a schematic flow chart of another wind turbine blade anti-icing method according to an embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0032] An embodiment of the present invention provides a wind turbine blade anti-icing system, which achieves the wind turbine blade anti-icing effect by installing a heating module with a detachable wearable structure on the surface of the wind turbine blade.

[0033] In this embodiment, a wind turbine blade anti-icing system is provided, which is used for anti-icing operations of wind turbine blades. Figure 1 As shown, the wind turbine blade includes a blade leading edge 1 , a blade trailing edge 2 , a blade root 3 and a blade tip 4 .

[0034] Further, if Figure 1 As shown, the wind turbine blade anti-icing system includes: a heating module 5, a power supply module 6, a control module 7 and a sensor module 8.

[0035] The power supply module 6 is connected to the control module 7 and the heating module 5 respectively; the control module 7 is connected to the sensor module 8 and the heating module 5 respectively.

[0036] Furthermore, the sensor module 8 is mounted on the surface of the heating module 5. Figure 2 As shown, the sensor module 8 can be composed of a number of temperature, humidity, icing, strain measurement and other sensors dispersedly installed on the heating module 5, which can measure the temperature, icing and other state parameters on the surface of the wind turbine blades, and provide feedback information for the operation of the wind turbine blade anti-icing system.

[0037] Furthermore, the heating module 5 adopts a detachable wearable structure and is worn on the surface of the wind turbine blade, which can cover the entire surface of the wind turbine blade or only cover the local surface with severe ice coverage such as the leading edge.

[0038] For example, the heating module 5 can be manufactured through appropriate design so that the power density of the installed heating module 5 at the leading edge, blade tip and other parts of the blade is higher, or a heating unit with greater heating power is arranged at the leading edge, blade tip and other parts of the blade, thereby achieving higher power heating of the leading edge, blade tip and other parts of the blade.

[0039] Further, if Figure 2 As shown, the heating module 5 is made of a highly elastic and wear-resistant material 9 and can be tightly wrapped and installed on the surface of the fan blade.

[0040] Furthermore, the highly elastic and wear-resistant material 9 can be a fiber material with conductive function, or inlaid or sprayed with conductive lines (or doped with conductive wires during weaving). When the heating module 5 is installed, the resistance characteristics of the module with different stretching degrees in different areas can be used to achieve uniform heating of the surface of the wind turbine blade, or focused heating of certain areas.

[0041] Furthermore, the highly elastic and wear-resistant material 9 can also be two layers of non-conductive material, with heating elements embedded in the middle layer, such as graphene heating film, etc., which can also achieve uniform heating of the surface of the wind turbine blades, or focused heating of certain areas.

[0042] Further, if Figure 2 As shown, the heating module 5 is also provided with a cable 10, which may include a fiber rope, a power supply cable, a signal cable, etc. One end of the cable 10 may be fixed to the surface of the blade to respectively realize installation and fixing of the heating module, power supply, communication, etc.

[0043] Furthermore, the functions of each module in the above system are described.

[0044] Preferably, the sensor module 8 is used to obtain a plurality of environmental data and ice coating data on the surface of the wind turbine blade, and send the plurality of environmental data and ice coating data to the control module 7 .

[0045] The environmental data may be temperature data, humidity data, etc.

[0046] Specifically, the temperature, humidity, icing, etc. conditions on the surface of the wind turbine blades can be monitored through a plurality of temperature, humidity, icing, etc. sensors in the sensor module 8 .

[0047] Furthermore, the sensor module 8 may send a plurality of environmental data and ice coverage data on the surface of the wind turbine blade obtained through monitoring to the control module 7 .

[0048] Preferably, the control module 7 is used to control the heating module 5 to perform anti-icing or de-icing operations for the wind turbine blades based on a plurality of environmental data and ice coverage data.

[0049] Specifically, after the control module 7 receives the multiple environmental data and ice coverage data sent by the sensor module 8, it can determine whether an anti-icing operation or a de-icing operation is currently required for the wind turbine blades according to the multiple environmental data and ice coverage data.

[0050] Further, the heating module 5 is controlled to perform corresponding operations on the wind turbine blades according to the judgment result.

[0051] Preferably, the sensor module 8 can also be used to obtain strain data of the heating module 5 and send the strain data to the control module 7 .

[0052] The strain data is used to reflect the strain conditions of certain parts of the heating module 5 after the heating module 5 is installed and fixed to the surface of the wind turbine blade.

[0053] Specifically, after the heating module 5 is installed and fixed on the surface of the wind turbine blade, the strain condition of the heating module 5 can be monitored by the strain measurement sensor in the sensor module 8 on the surface of the heating module 5 to obtain corresponding strain data.

[0054] Furthermore, the sensor module 8 may send the strain data obtained through monitoring to the control module 7 .

[0055] Preferably, the control module 7 is also used to determine whether the heating module meets the preset installation requirements based on the strain data.

[0056] Specifically, after the control module 7 receives the strain data sent by the sensor module 8, it can determine whether the heating module 5 currently installed on the surface of the wind turbine blade meets the preset installation requirements based on the strain data. In this way, the use of the heating module 5 can be made safer and more efficient.

[0057] Preferably, the power supply module 6 is used to supply power to the control module 7 and the heating module 8 respectively, so as to ensure the normal operation of the control module and the heating module.

[0058] The wind turbine blade anti-icing and de-icing system provided in this embodiment obtains multiple environmental data and ice coverage data on the surface of the wind turbine blades through a sensor module installed on the surface of the heating module, and then the control module controls the heating module to perform anti-icing or de-icing operations on the wind turbine blades through the received multiple environmental data and ice coverage data, thereby realizing the anti-icing and de-icing of the wind turbine. At the same time, the heating module adopts a detachable wearable structure, which can be installed on the surface of the wind turbine blades only during the ice-covering period, and can be removed at other times, which has little impact on the wind turbine. Since there are fewer thunderstorms in winter, there is no risk of attracting lightning, and the safety is high. Furthermore, installing the heating module on the surface of the wind turbine blades can improve the anti-icing or de-icing efficiency. Therefore, by implementing the present invention, the anti-icing and de-icing of wind turbines can be achieved more safely, efficiently, and economically.

[0059] According to an embodiment of the present invention, an embodiment of a method for preventing and deicing blades of a wind turbine is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0060] In this embodiment, a method for preventing and removing ice from blades of a wind turbine is provided, which can be used in the control module 7 in the wind turbine blade prevention and removal ice system provided in the above embodiment of the present invention. Figure 3FIG. 1 is a flow chart of a method for preventing and deicing blades of a wind turbine according to an embodiment of the present invention. Figure 3 As shown, the process includes the following steps:

[0061] Step S301, when there is an ice-covered period, obtaining strain data of the heating module.

[0062] Specifically, the power supply module 6, the control module 7 and the sensor module 8 in the wind turbine blade anti-icing system are installed on the surface of the wind turbine blade.

[0063] Furthermore, through a special meteorological forecasting system, it is possible to obtain forecast data on the icing state of the wind turbines in a preset future time period and determine whether there will be an icing period in the preset future time period.

[0064] Furthermore, if there is an ice-covered period, the heating module 5 is further mounted on the surface of the corresponding wind turbine blade.

[0065] Further, after the heating module 5 is installed, the strain data of the heating module 5 is obtained. The specific process is referred to the functional description of the sensor module 8 in the above embodiment of the present invention, and will not be repeated here.

[0066] Step S302: judging whether the heating module meets the preset installation requirements based on the strain data.

[0067] The specific process refers to the functional description of the control module 7 in the above embodiment of the present invention, which will not be repeated here.

[0068] Step S303: when the heating module meets the preset installation requirements, a plurality of environmental data and ice coverage data of the surface of the wind turbine blade are obtained.

[0069] Specifically, if the heating module 5 meets the preset installation requirements, the sensor module 8 on the surface of the wind turbine blade is used to obtain multiple environmental data and ice coverage data of the corresponding wind turbine blade surface, and the obtained multiple environmental data and ice coverage data are sent to the control module 7.

[0070] The specific acquisition process can refer to the functional description of the sensor module 8 in the wind turbine blade anti-icing system in the above embodiment of the present invention, which will not be repeated here.

[0071] Step S304: controlling the heating module to perform anti-icing or de-icing operations for the wind turbine blades based on the multiple environmental data and ice coverage data.

[0072] The specific process can refer to the functional description of the control module 7 in the wind turbine blade anti-icing system in the above embodiment of the present invention, which will not be repeated here.

[0073] The wind turbine blade anti-icing method provided in this embodiment can determine whether the wind turbine has an icing period in a preset future time period through the prediction data of the icing state of the wind turbine in a preset future time period. If there is an icing period, the wind turbine can be anti-iced by obtaining a plurality of environmental data and icing data on the surface of the wind turbine blade. Therefore, by implementing the present invention, the wind turbine is safer by using a heating module to perform anti-icing on the wind turbine during the icing period.

[0074] In this embodiment, a method for preventing and removing ice from blades of a wind turbine is provided, which can be used in the control module 7 in the wind turbine blade prevention and removal ice system provided in the above embodiment of the present invention. Figure 4 FIG. 1 is a flow chart of a method for preventing and deicing blades of a wind turbine according to an embodiment of the present invention. Figure 4 As shown, the process includes the following steps:

[0075] Step S401: When there is an ice-covered period, obtain the strain data of the heating module. Figure 3 Step S301 of the illustrated embodiment will not be described in detail here.

[0076] Step S402: Determine whether the heating module meets the preset installation requirements based on the strain data. Figure 3 Step S301 of the illustrated embodiment will not be described in detail here.

[0077] Step S403: When the heating module meets the preset installation requirements, multiple environmental data and ice coverage data on the surface of the wind turbine blade are obtained. Figure 3 Step S303 of the illustrated embodiment will not be described in detail here.

[0078] Step S404: controlling the heating module to perform anti-icing or de-icing operations for the wind turbine blades based on the multiple environmental data and ice coverage data.

[0079] Specifically, the above step S404 includes:

[0080] Step S4041, determining the working mode of the heating module based on multiple environmental data and ice coverage data.

[0081] Specifically, the environmental data may be temperature data, humidity data, and the like.

[0082] In an optional implementation, the above step S4041 includes:

[0083] Step a1, compare multiple environmental data with preset environmental thresholds respectively to obtain a first comparison result.

[0084] Step a2, comparing the ice coverage data with a preset ice coverage threshold to obtain a second comparison result.

[0085] Step a3: determining the working mode of the heating module based on the first comparison result and the second comparison result.

[0086] Specifically, by comparing different environmental data and ice coverage data with corresponding threshold values ​​respectively, the current working mode of the heating module 5 can be determined.

[0087] For example, when the ambient temperature is lower than a certain value (such as 2° C.) and the ambient humidity is higher than a certain value (such as relative humidity 85%), the heating module 5 needs to enter the anti-icing mode.

[0088] Furthermore, when the ice sensor detects ice on the blade surface and the ice thickness reaches a certain thickness (such as 2 mm), the heating module 5 needs to enter the de-icing mode, and when the ice layer falls off, it switches to the anti-icing mode.

[0089] Furthermore, when the ambient temperature is higher than a certain value (such as 2° C.) or the ambient humidity is lower than a certain value (such as relative humidity 85%), the heating module 5 is required to exit the anti-icing mode.

[0090] Step S4042: when the working mode is the anti-icing mode, the heating module is controlled to perform anti-icing operation for the blades of the wind turbine.

[0091] Specifically, when it is determined that the heating module 5 needs to enter the anti-icing mode, the heating module 5 is controlled to perform an anti-icing operation on the blades of the wind turbine.

[0092] Step S4043, when the working mode is the de-icing mode, the heating module is controlled to perform de-icing operation on the blades of the wind turbine.

[0093] Specifically, when it is determined that the heating module 5 needs to enter the de-icing mode, the heating module 5 is controlled to perform a de-icing operation on the blades of the wind turbine.

[0094] The wind turbine blade anti-icing method provided in this embodiment can determine whether the wind turbine has an icing period in a preset future time period through the prediction data of the icing state of the wind turbine in a preset future time period. Furthermore, if there is an icing period, the current working mode of the heating module can be determined by obtaining a plurality of environmental data and icing data, and then the heating module can be controlled to perform different operations under different working modes, thereby realizing the anti-icing of the wind turbine. At the same time, it can be determined whether the heating module meets the preset installation requirements by obtaining the strain data of the heating module. Therefore, by implementing the present invention, the anti-icing of the wind turbine is performed by using the heating module during the icing period, which is safer.

[0095] In one example, a wind turbine blade anti-icing device is provided, which is composed of a heating module, a power supply module, a control module and a sensor module.

[0096] Among them, the heating module is used for blade anti-icing or de-icing. It is a detachable wearable structure that can be worn on the surface of the wind turbine blade.

[0097] Furthermore, the power supply module is used to supply power to the heating module; the control module is used to control the start and stop, heating power and other operating states of the heating module; the sensor module is installed on the surface of the heating module to measure the surface temperature of the fan blades, icing and other state parameters.

[0098] Furthermore, the power supply module is connected to the heating module and the control module, and the control module is connected to the sensor module.

[0099] Preferably, the heating module is made of a highly elastic and wear-resistant material, which can be tightly wrapped and installed on the surface of the fan blade. After installation, the heating module can cover the entire surface of the fan blade, or only cover the local surface such as the leading edge where ice is severely covered.

[0100] Preferably, the material of the heating module is a fiber material with conductive function, or is inlaid or sprayed with conductive lines. After the heating module is installed, the resistance characteristics of the module with different stretching degrees in different areas can be used to achieve uniform heating of the surface of the wind turbine blade, or focused heating of certain areas.

[0101] In addition, the heating module can also be made of two layers of non-conductive materials, with heating elements embedded in the middle layer, including but not limited to carbon fiber cloth, graphene cloth, resistance wire, etc., which can also achieve uniform heating of the surface of the wind turbine blades, or focus heating of certain areas.

[0102] Preferably, the heating module also has cables, which may include fiber ropes, power supply cables, signal cables, etc. One end of the cable can be fixed to the surface of the blade to respectively install and fix the heating module, power supply, communication, etc.

[0103] Preferably, the sensing module is composed of a number of temperature, icing and other sensors dispersedly installed on the heating module, which can measure the temperature, icing and other state parameters on the surface of the fan blades, and provide feedback information for the operation of the fan blade anti-icing system.

[0104] Preferably, the sensor module may also include a strain measurement function for measuring the strain of certain parts of the heating module after it is installed and fixed, to assist in determining whether the installation of the heating module meets the expected requirements and other information.

[0105] Furthermore, based on the wind turbine blade anti-icing device, a wind turbine blade anti-icing method is provided, and the implementation steps are as follows:

[0106] S1: Install the power supply module and control module of the anti-icing device on the wind turbine;

[0107] S2: Predict the icing conditions of wind turbines in the next few days;

[0108] S3: When it is predicted that ice will appear in the next few days, the unit is shut down, a heating module is installed on the blades of the wind turbine, and the heating module is connected to the power supply module and the control module. After the installation is completed, the unit is put into operation;

[0109] S4: According to the meteorological environment of the wind turbine or the icing monitoring signal, the control module controls the start and stop, heating power and other operating states of the heating module;

[0110] S5: When the icing period has passed, the unit is shut down and the heating module on the wind turbine blades is removed. After the removal is completed, the unit resumes operation.

[0111] Preferably, in step S4, when the ambient temperature is lower than a certain value (such as 2° C.) and the ambient humidity is greater than a certain value (such as relative humidity 85%), the heating module is started to enter the anti-icing mode.

[0112] When the ice sensor detects ice on the blade surface and the ice thickness reaches a certain thickness (such as 2mm), the heating module is controlled to enter the de-icing mode. When the ice layer falls off, it switches to the anti-icing mode.

[0113] When the ambient temperature is higher than a certain value (such as 2° C.) or the ambient humidity is lower than a certain value (such as relative humidity 85%), the heating module running in the anti-icing mode will stop running.

[0114] Preferably, in step S4, by setting a zone control function for the heating module, the fan blades can be heated evenly, and the leading edge, blade tip and other parts of the blades can be heated with greater power.

[0115] Preferably, in step S4, the heating module can be manufactured through appropriate design so that the power density of the installed heating module at the leading edge, blade tip and other parts of the blade is higher, or a heating unit with greater heating power is arranged at the leading edge, blade tip and other parts of the blade, thereby achieving higher power heating of the leading edge, blade tip and other parts of the blade.

[0116] Preferably, in step S4, if the fabric is a conductive material, the resistance distribution characteristics of the heating module after stretching can be designed and installed to achieve higher power heating of the leading edge, blade tip and other parts of the blade.

[0117] Preferably, in step S4, if the fabric is a non-conductive material, heating elements of different powers (or doped with conductive threads) can be embedded in the interlayer to achieve higher power heating of the leading edge, blade tip and other parts of the blade.

[0118] The wind turbine blade anti-icing device and method provided in this example achieves anti-icing of the wind turbine blades by installing a detachable wearable heating module on the outer surface of the wind turbine blades. The method directly lays the heating module on the outer surface of the wind turbine blades, and has a high heating and deicing efficiency. The heating module is only installed on the blade surface during the icing period and is detachable at other times, which has little impact on the wind turbine. Since there are fewer lightning strikes in winter, there is no risk of lightning induction and the safety is high. The heating module is reusable, easy to maintain, and has strong versatility and good economy.

[0119] An embodiment of the present invention further provides a computer device having the wind turbine blade anti-icing method provided by the above embodiment of the present invention.

[0120] See also Figure 5 , Figure 5 is a schematic diagram of the structure of a computer device provided by an optional embodiment of the present invention, such as Figure 5 As shown, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components are connected to each other using different buses for communication, and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides some necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 5 A processor 10 is taken as an example.

[0121] The processor 10 may be a central processing unit, a network processor or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be a dedicated integrated circuit, a programmable logic device or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic or any combination thereof.

[0122] The memory 20 stores instructions executable by at least one processor 10, so that at least one processor 10 executes the method shown in the above embodiment.

[0123] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application required for at least one function; the data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0124] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid state drive; the memory 20 may also include a combination of the above types of memory.

[0125] The computer device further comprises a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0126] The embodiment of the present invention also provides a computer-readable storage medium. The method according to the embodiment of the present invention can be implemented in hardware, firmware, or can be implemented as a computer code that can be recorded in a storage medium, or can be implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and will be stored in a local storage medium through a network download, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state hard disk, etc.; further, the storage medium can also include a combination of the above types of memories. It can be understood that a computer, a processor, a microprocessor controller, or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor, or hardware, the method shown in the above embodiment is implemented.

[0127] A part of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the existence of the computer program instruction in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc., and accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any available computer-readable storage medium or communication medium accessible to the computer.

[0128] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A wind turbine blade anti-icing system, characterized in that: The system comprises: a control module, a sensor module and a heating module. The heating module adopts a detachable wearable structure and is worn on the surface of the wind turbine blade. The sensor module is installed on the surface of the heating module to measure the temperature state and ice state of the wind turbine blade surface. The heating module is made of a highly elastic and wear-resistant material and is tightly wrapped and installed on the surface of the wind turbine blade. The highly elastic and wear-resistant material is a fiber material with a conductive function, or is inlaid or sprayed with a conductive line. The sensor module is used to obtain a plurality of environmental data and ice data on the surface of the wind turbine blade, and send the plurality of environmental data and ice data to the control module; The control module is used to control the heating module to perform anti-icing or de-icing operations for the wind turbine blades based on the multiple environmental data and the ice coverage data.

2. The system according to claim 1, characterized in that The system further comprises: A power supply module is used to supply power to the control module and the heating module.

3. The system according to claim 1, characterized in that The sensor module is further used to obtain strain data of the heating module and send the strain data to the control module; The control module is further used to determine whether the heating module meets preset installation requirements based on the strain data.

4. The system according to claim 1, characterized in that The material of the heating module is one of a fiber material with conductive function, a conductive circuit, and two layers of non-conductive material, wherein a heating element interlayer is added between the two layers of non-conductive material.

5. A method for preventing and deicing blades of a wind turbine generator set, characterized in that: A control module used in a wind turbine blade anti-icing system according to any one of claims 1 to 4; the method comprising: When there is an icing period, the strain data of the heating module is obtained; Determining whether the heating module meets preset installation requirements based on the strain data; When the heating module meets the preset installation requirements, a plurality of environmental data and ice coverage data on the surface of the wind turbine blade are obtained; Based on the multiple environmental data and the ice coverage data, a heating module is controlled to perform anti-icing or de-icing operations for the wind turbine blades.

6. The method according to claim 5, characterized in that Controlling a heating module to perform anti-icing or de-icing operations on the blades of a wind turbine generator based on the plurality of environmental data and the ice coverage data includes: Determining a working mode of the heating module based on the plurality of environmental data and the ice coating data; When the working mode is the anti-icing mode, controlling the heating module to perform an anti-icing operation for the blades of the wind turbine; When the working mode is the de-icing mode, the heating module is controlled to perform de-icing operations on the blades of the wind turbine.

7. The method according to claim 6, characterized in that Determining a working mode of the heating module based on the plurality of environmental data and the ice coating data includes: Comparing the plurality of environmental data with preset environmental thresholds respectively to obtain a first comparison result; Comparing the ice coverage data with a preset ice coverage threshold to obtain a second comparison result; Based on the first comparison result and the second comparison result, the working mode of the heating module is determined.

8. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the wind turbine blade anti-icing method according to any one of claims 5 to 7 by executing the computer instructions.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the wind turbine blade anti-icing method according to any one of claims 5 to 7.

10. A computer program product, characterized in that The method comprises computer instructions, wherein the computer instructions are used to enable a computer to execute the wind turbine blade anti-icing method according to any one of claims 5 to 7.

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