Parameter value determination method and device, storage medium and electronic equipment

Abstract

The embodiment of the invention provides a parameter value determination method and device, a storage medium and electronic equipment, and the method comprises the steps: determining a plurality of first parameter values corresponding to the amplitude of a concave-convex front edge and a plurality of second parameter values corresponding to the wavelength of the concave-convex front edge according to the parameter value of the wing chord length of the concave-convex front edge of a blade; constructing a first blade according to each combination in the first orthogonal table, and performing pneumatic simulation on the first blade to obtain a plurality of first simulation results; determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results; determining a first function relationship between the chord length and the amplitude of the airfoil profile according to the third parameter value, and determining a second function relationship between the chord length and the wavelength of the airfoil profile according to the fourth parameter value; and determining a target parameter value corresponding to the amplitude of the concave-convex front edge of the target blade and a target parameter value corresponding to the wavelength according to the first function relationship, the second function relationship and the target parameter value of the wing chord length of the concave-convex front edge of the target blade.

Description

Technical Field

[0001] The present application relates to the field of wind power, and in particular to a method and device for determining a parameter value, a storage medium, and an electronic device. Background Art

[0002] In the field of wind power generation, especially in the design of vertical axis wind turbines, the aerodynamic performance of the blades is directly related to the efficiency and stability of wind power generation. Traditional blade designs usually use smooth leading edges, but in actual operation, this design is prone to dynamic stall problems under specific wind speed and wind direction conditions, resulting in reduced power generation efficiency and even structural damage. In order to solve these problems, in recent years, blades with concave and convex leading edge designs have appeared. This design imitates the fluid dynamics characteristics of organisms in nature (such as whale fins). By introducing a wavy structure on the leading edge of the blade, it can improve the attachment of the airflow, reduce stall, and improve the aerodynamic efficiency of the blade.

[0003] However, although the concave-convex leading edge blades have shown potential in theory and experiment, the existing technology still has significant deficiencies in the specific parameter design. In particular, for the two key parameters of amplitude and wavelength, there is currently a lack of effective methods to accurately determine their values.

[0004] With respect to the problem in the prior art that the parameter values ​​corresponding to the amplitude and wavelength cannot be accurately determined, no effective solution has been proposed so far.

[0005] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention

[0006] The embodiments of the present application provide a method and device for determining parameter values, a storage medium, and an electronic device to at least solve the problem in the prior art that the parameter values ​​corresponding to the amplitude and wavelength cannot be accurately determined.

[0007] According to one embodiment of the present application, a method for determining parameter values ​​is provided, comprising: determining a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; establishing a first orthogonal table of the amplitude and wavelength of the concave-convex leading edge according to the plurality of first parameter values ​​and the plurality of second parameter values; constructing a first blade according to each combination in the first orthogonal table, and performing aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: the amplitude any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; determine a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the multiple first simulation results; determine a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and determine a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value; determine a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0008] In an exemplary embodiment, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the multiple first simulation results includes: determining a first sensitivity of the amplitude to the simulation result and a second sensitivity of the wavelength to the simulation result according to the multiple first simulation results; adjusting the multiple first parameter values ​​according to the first sensitivity, and adjusting the multiple second parameter values ​​according to the second sensitivity; establishing a second orthogonal table of the amplitude and wavelength of the concave and convex leading edge of the blade according to the adjusted multiple first parameter values ​​and the adjusted multiple second parameter values; determining the third parameter value corresponding to the amplitude and the fourth parameter value corresponding to the wavelength according to the second orthogonal table.

[0009] In an exemplary embodiment, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the second orthogonal table includes: constructing a second blade according to each combination in the second orthogonal table, and performing aerodynamic simulation on the second blade to obtain a plurality of second simulation results, wherein each combination in the second orthogonal table includes: any adjusted first parameter value corresponding to the amplitude and any adjusted second parameter value corresponding to the wavelength; determining a blade whose aerodynamic performance meets a preset aerodynamic performance according to the first simulation result and the second simulation result, and determining a plurality of parameter combinations of blades that meet the preset aerodynamic performance, wherein each parameter combination includes: a parameter value corresponding to the amplitude and a parameter value corresponding to the wavelength; determining a target parameter combination with optimal aerodynamic performance among the plurality of parameter combinations, and determining the third parameter value and the fourth parameter value according to the target parameter combination.

[0010] In an exemplary embodiment, before determining the target parameter value corresponding to the amplitude of the concave-convex leading edge of the target blade and the target parameter value corresponding to the wavelength according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord of the concave-convex leading edge of the target blade, the method also includes: determining a fifth parameter value corresponding to the airfoil chord of the concave-convex leading edge of the target blade and a sixth parameter value corresponding to the wind wheel diameter of the blade; constructing the target blade according to the fifth parameter value and the sixth parameter value; performing aerodynamic simulation on the target blade to determine a third simulation result; and determining the target parameter value of the airfoil chord of the concave-convex leading edge of the target blade according to the third simulation result.

[0011] In an exemplary embodiment, a target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade is determined based on the third simulation result, including: determining whether the aerodynamic performance of the target blade meets the preset aerodynamic performance based on the third simulation result; when the aerodynamic performance of the target blade meets the preset aerodynamic performance, determining the fifth parameter value as the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade; when the aerodynamic performance of the target blade does not meet the preset aerodynamic performance, adjusting the fifth parameter value and the sixth parameter value, and determining the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade based on the adjusted fifth parameter value and the adjusted sixth parameter value.

[0012] In an exemplary embodiment, constructing the target blade according to the fifth parameter value and the sixth parameter value includes: determining the number of blades of the wind turbine group corresponding to the target blade; determining the solidity of the wind rotor of the wind turbine group according to the fifth parameter value, the sixth parameter value and the number of blades; in a case where the solidity of the wind rotor does not meet the preset solidity of the wind rotor, adjusting the fifth parameter value and the sixth parameter value, and constructing the target blade according to the adjusted fifth parameter value and the adjusted sixth parameter value; in a case where the solidity of the wind rotor meets the preset solidity of the wind rotor, constructing the target blade according to the fifth parameter value and the sixth parameter value.

[0013] According to another embodiment of the present application, a parameter value determination device is provided, including: a first determination module, used to determine a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; an establishment module, used to establish a first orthogonal table of the amplitude and wavelength of the concave-convex leading edge according to the plurality of first parameter values ​​and the plurality of second parameter values; a construction module, used to construct a first blade according to each combination in the first orthogonal table, and perform aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: the amplitude value of the concave-convex leading edge and the wavelength of the concave-convex leading edge; any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; a second determination module, used to determine a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the multiple first simulation results; a third determination module, used to determine a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and to determine a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value; a fourth determination module, used to determine a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0014] According to another embodiment of the present application, a computer-readable storage medium is provided, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when run.

[0015] According to another embodiment of the present application, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0016] According to another embodiment of the present application, a computer program product is provided, including a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0017] According to the present application, a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge are determined according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; a first orthogonal table of the amplitude and wavelength of the concave-convex leading edge is established according to the plurality of first parameter values ​​and the plurality of second parameter values; a first blade is constructed according to each combination in the first orthogonal table, and aerodynamic simulation is performed on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength are determined according to the plurality of first simulation results; a first functional relationship between the airfoil chord length and the amplitude is determined according to the third parameter value, and a second functional relationship between the airfoil chord length and the wavelength is determined according to the fourth parameter value; a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade are determined according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade. That is, the embodiment of the present application systematically analyzes and optimizes the design parameters of the concave and convex leading edge of the blade, and finally achieves precise control of the parameter values ​​of amplitude and wavelength through experimental design and simulation testing, combined with data analysis and functional relationship determination. Therefore, the problem of being unable to accurately determine the parameter values ​​corresponding to amplitude and wavelength can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a hardware structure block diagram of a computer device of a method for determining a parameter value in an embodiment of the present application;

[0021] Figure 2 is a flow chart of a method for determining a parameter value according to an embodiment of the present application;

[0022] Figure 3is a flow chart of a method for determining parameter values ​​of amplitude and wavelength according to an embodiment of the present application;

[0023] Figure 4 is a flow chart of a method for determining a parameter value of a chord length according to an embodiment of the present application;

[0024] Figure 5 is a schematic diagram of a concave and convex leading edge according to an embodiment of the present application;

[0025] Figure 6 It is a structural block diagram of a device for determining parameter values ​​according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] The embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence.

[0028] The method embodiments provided in the embodiments of the present application can be executed in a computer device or a similar computing device. Taking running on a computer device as an example, Figure 1 1 is a hardware structure block diagram of a computer device for determining a parameter value in an embodiment of the present application. Figure 1 As shown, the computer device may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the above-mentioned computer device may also include a transmission device 106 and an input and output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above-mentioned computer device. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0029] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the method for determining parameter values ​​in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, 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.

[0030] The transmission device 106 is used to receive or send data via a network. The above-mentioned network specific examples may include a wireless network provided by a communication provider of the computer device. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0031] In this embodiment, a method for determining a parameter value is provided, which is applied to the above-mentioned computer device. Figure 2 is a flow chart of a method for determining parameter values ​​according to an embodiment of the present application. Figure 2 As shown, the process includes the following steps:

[0032] Step S202, determining a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade;

[0033] Step S204, establishing a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the multiple first parameter values ​​and the multiple second parameter values;

[0034] An orthogonal array is an experimental design tool used to systematically combine multiple levels of different parameters to minimize the number of experiments while covering the variation space of all parameters. The first orthogonal array here contains the experimental design of all amplitude and wavelength combinations.

[0035] Step S206, constructing a first blade according to each combination in the first orthogonal table, and performing aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength;

[0036] According to each combination in the orthogonal table, a set of experimental blades (first blades) are designed and constructed. Subsequently, aerodynamic simulations are performed on these blades to test and evaluate the blade performance under different amplitude and wavelength combinations. This will produce multiple first simulation results, each corresponding to a parameter combination in the orthogonal table.

[0037] Step S208, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results;

[0038] Step S210, determining a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and determining a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value;

[0039] Step S212, determining a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0040] The last step is to apply the functional relationship established above to determine the target parameter values ​​of the final amplitude and wavelength of the concave and convex leading edge design of the blade according to the target parameter value of the airfoil chord length of the target blade. This ensures that the designed blade can achieve the best aerodynamic efficiency and stability for specific wind power generation conditions or wind rotor solidity.

[0041] Through the above steps, multiple first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and multiple second parameter values ​​corresponding to the wavelength of the concave-convex leading edge are determined according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; a first orthogonal table of the amplitude and wavelength of the concave-convex leading edge is established according to the multiple first parameter values ​​and the multiple second parameter values; a first blade is constructed according to each combination in the first orthogonal table, and aerodynamic simulation is performed on the first blade to obtain multiple first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength are determined according to the multiple first simulation results; a first functional relationship between the airfoil chord length and the amplitude is determined according to the third parameter value, and a second functional relationship between the airfoil chord length and the wavelength is determined according to the fourth parameter value; a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade are determined according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade. That is, the embodiment of the present application systematically analyzes and optimizes the design parameters of the concave and convex leading edge of the blade, and finally achieves precise control of the parameter values ​​of amplitude and wavelength through experimental design and simulation testing, combined with data analysis and functional relationship determination. Therefore, the problem of being unable to accurately determine the parameter values ​​corresponding to amplitude and wavelength can be solved.

[0042] In an exemplary embodiment, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the multiple first simulation results includes: determining a first sensitivity of the amplitude to the simulation result and a second sensitivity of the wavelength to the simulation result according to the multiple first simulation results; adjusting the multiple first parameter values ​​according to the first sensitivity, and adjusting the multiple second parameter values ​​according to the second sensitivity; establishing a second orthogonal table of the amplitude and wavelength of the concave and convex leading edge of the blade according to the adjusted multiple first parameter values ​​and the adjusted multiple second parameter values; determining the third parameter value corresponding to the amplitude and the fourth parameter value corresponding to the wavelength according to the second orthogonal table.

[0043] Based on the first simulation result, a sensitivity analysis is performed to determine the sensitivity of the amplitude and wavelength to the simulation result. Sensitivity analysis is a method for evaluating the degree of influence of parameter changes on system performance. In the present invention, it is used to quantify the direct influence of amplitude and wavelength on the aerodynamic performance of the blade (such as lift, drag, power generation efficiency, etc.). Specifically, the first sensitivity and the second sensitivity respectively reflect the sensitivity of the amplitude and wavelength to the simulation result.

[0044] Based on the results of the sensitivity analysis, the initially determined parameter values ​​(first parameter value and second parameter value) of the amplitude and wavelength are adjusted. If the sensitivity of the amplitude or wavelength is high, it means that they have a significant impact on the blade performance, so these parameters need to be adjusted more carefully. Through sensitivity analysis, it is possible to identify which parameter combinations are most effective for performance improvement.

[0045] After the parameter adjustment, a new orthogonal table, namely the second orthogonal table, is established based on the optimized multiple first parameter values ​​(amplitude) and multiple second parameter values ​​(wavelength). The orthogonal experimental design allows the inventor to explore the effect of parameters on the response variable (such as blade performance) with a minimum number of experiments. The second orthogonal table is constructed to more accurately test and determine the effect of amplitude and wavelength on the optimized blade performance.

[0046] Through the experiment and simulation of the second orthogonal table, the third parameter value of the amplitude and the fourth parameter value of the wavelength are finally determined. These parameter values ​​are based on the simulation test of the blades of each combination in the optimized orthogonal table, and then those parameter combinations that show the best performance in the simulation results are selected. The third and fourth parameter values ​​represent the optimal values ​​of the amplitude and wavelength under the given airfoil chord length and blade design goals.

[0047] In an exemplary embodiment, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the second orthogonal table includes: constructing a second blade according to each combination in the second orthogonal table, and performing aerodynamic simulation on the second blade to obtain a plurality of second simulation results, wherein each combination in the second orthogonal table includes: any adjusted first parameter value corresponding to the amplitude and any adjusted second parameter value corresponding to the wavelength; determining a blade whose aerodynamic performance meets a preset aerodynamic performance according to the first simulation result and the second simulation result, and determining a plurality of parameter combinations of blades that meet the preset aerodynamic performance, wherein each parameter combination includes: a parameter value corresponding to the amplitude and a parameter value corresponding to the wavelength; determining a target parameter combination with optimal aerodynamic performance among the plurality of parameter combinations, and determining the third parameter value and the fourth parameter value according to the target parameter combination.

[0048] A second set of experimental blades are designed and constructed for each parameter combination in the second orthogonal table. This phase of blade design takes into account the fine-tuned values ​​of the parameters in order to further optimize the aerodynamic performance of the blades. A more accurate aerodynamic simulation is performed on these blades to produce multiple second simulation results, each corresponding to the performance evaluation of a parameter combination.

[0049] By comparing the simulation results of the first and second phases, it is possible to identify blades whose aerodynamic performance meets the preset standards and determine the parameter combinations of these blades. The preset aerodynamic performance may include specific technical indicators such as lift coefficient, drag coefficient, power generation efficiency threshold, etc.

[0050] Among the parameter combinations that meet the preset aerodynamic performance standards, further analysis is performed to identify the target parameter combination with the best aerodynamic performance.

[0051] Based on the optimal target parameter combination, the final amplitude third parameter value and wavelength fourth parameter value can be determined. These parameter values ​​are the design parameters that are most conducive to improving the aerodynamic performance of the blade after multiple iterations and refinements.

[0052] In an exemplary embodiment, before determining multiple first parameter values ​​corresponding to the amplitude of the concave-convex leading edge according to the parameter value of the airfoil chord of the concave-convex leading edge of the blade, the method also includes: determining a fifth parameter value corresponding to the airfoil chord of the concave-convex leading edge of the blade and a sixth parameter value corresponding to the wind wheel diameter of the blade; constructing a third blade according to the fifth parameter value and the sixth parameter value; performing aerodynamic simulation on the third blade to determine a third simulation result; and determining the parameter value of the airfoil chord of the concave-convex leading edge of the blade according to the third simulation result.

[0053] Before determining the amplitude and wavelength parameters, it is necessary to first determine the blade's airfoil chord length (the fifth parameter value) and the rotor diameter (the sixth parameter value). These two parameters are crucial to the blade's aerodynamic performance and the overall efficiency of the wind turbine because they affect the blade's geometry and the rotor's ability to capture wind.

[0054] Based on the determined airfoil chord length and wind rotor diameter parameters, the third set of experimental blades are designed and constructed. Subsequently, aerodynamic simulations are performed on these blades to evaluate their performance under different wind speed and wind direction conditions. The simulation tests at this stage are aimed at verifying and optimizing the airfoil chord length design of the blades through actual numerical simulations to ensure that it can match the wind rotor diameter and other design parameters to provide the best aerodynamic performance.

[0055] By analyzing the third simulation result, the optimal parameter value of the concave-convex leading edge airfoil chord length of the blade can be determined. In the simulation test, if the performance indicators of the lift, drag or power generation efficiency of the blade are good, then the current airfoil chord length parameter value may be determined as the optimization result of the fifth parameter value.

[0056] In an exemplary embodiment, a target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade is determined based on the third simulation result, including: determining whether the aerodynamic performance of the target blade meets the preset aerodynamic performance based on the third simulation result; when the aerodynamic performance of the target blade meets the preset aerodynamic performance, determining the fifth parameter value as the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade; when the aerodynamic performance of the target blade does not meet the preset aerodynamic performance, adjusting the fifth parameter value and the sixth parameter value, and determining the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade based on the adjusted fifth parameter value and the adjusted sixth parameter value.

[0057] Before any design work is carried out, a series of preset aerodynamic performance standards will be set, which are usually based on the working environment of the wind turbine, the expected power generation efficiency, the start-up and shutdown wind speeds, and the structural safety requirements of the blades. The preset aerodynamic performance may include but is not limited to: lift coefficient, drag coefficient, power generation efficiency, and blade stability and other key indicators.

[0058] Based on the preliminary estimated airfoil chord length (fifth parameter value) and wind rotor diameter (sixth parameter value), the third set of blades is designed and constructed for aerodynamic simulation. The aerodynamic performance of the third blade under different wind speed and wind direction conditions is simulated by numerical simulation software to generate the third simulation result.

[0059] The third simulation result is analyzed to determine whether the aerodynamic performance of the third blade meets the preset standard. If the aerodynamic performance meets or exceeds the preset standard, the fifth parameter value (airfoil chord length) at this time will be determined as the final target parameter value. This means that the current selection of airfoil chord length has enabled the blade to exhibit excellent aerodynamic characteristics in the simulation and no further adjustment is required.

[0060] If the aerodynamic performance of the third blade fails to meet the preset standard, the fifth parameter value (airfoil chord length) and the sixth parameter value (wind rotor diameter) will be adjusted. The adjustment strategy includes but is not limited to increasing or decreasing the airfoil chord length, adjusting the wind rotor diameter, and even optimizing the proportional relationship between the two.

[0061] After adjusting the parameters, a new blade is designed and aerodynamic simulation is performed. By analyzing the new simulation results, it is evaluated again whether the aerodynamic performance of the blade meets the preset requirements. If so, the adjusted fifth parameter value will be determined as the target parameter value of the concave-convex leading edge airfoil chord length of the target blade.

[0062] The entire process requires multiple iterations, i.e. repeated parameter adjustment, blade construction, simulation testing, and performance evaluation, until the airfoil chord parameter value that meets all preset aerodynamic performance requirements is found. This iterative process ensures that the designed blade is not only theoretically optimized, but also achieves the expected aerodynamic performance in practical applications, thereby improving the overall efficiency and operational stability of the wind turbine.

[0063] In an exemplary embodiment, constructing the target blade according to the fifth parameter value and the sixth parameter value includes: determining the number of blades of the wind turbine group corresponding to the target blade; determining the solidity of the wind rotor of the wind turbine group according to the fifth parameter value, the sixth parameter value and the number of blades; in a case where the solidity of the wind rotor does not meet the preset solidity of the wind rotor, adjusting the fifth parameter value and the sixth parameter value, and constructing the target blade according to the adjusted fifth parameter value and the adjusted sixth parameter value; in a case where the solidity of the wind rotor meets the preset solidity of the wind rotor, constructing the target blade according to the fifth parameter value and the sixth parameter value.

[0064] Determine the target number of blades in the wind turbine. The number of blades will directly affect the structure and operating characteristics of the wind rotor, such as the wind rotor's wind capture efficiency, operating stability, and overall load distribution.

[0065] The solidity of the wind rotor is calculated based on the airfoil chord length (fifth parameter value), the rotor diameter (sixth parameter value) and the number of blades. The solidity of the wind rotor refers to the ratio of the projected area of ​​all blades to the square of the rotor diameter, which reflects the density of the blades relative to the overall wind rotor. The solidity has an important influence on the aerodynamic performance of the wind rotor. Too low or too high solidity may reduce the efficiency of the wind rotor.

[0066] The calculated solidity of the wind rotor is compared with the preset standard. If the solidity of the wind rotor does not meet the preset standard: adjust the airfoil chord length (fifth parameter value) and / or the wind rotor diameter (sixth parameter value). By adjusting these parameters, the solidity of the wind rotor is recalculated until the solidity meets the preset standard.

[0067] If the solidity of the wind wheel meets the preset standard, there is no need to further adjust the fifth parameter value and the sixth parameter value, which means that the current parameter combination has met the design requirements.

[0068] When the parameter values ​​of the airfoil chord length and the rotor diameter, as well as the number of blades are determined, and the rotor solidity meets the preset standards, the final target blades are designed and constructed based on these optimized parameters. The target blade design at this time not only takes into account the optimization of aerodynamic performance (through the third simulation results), but also ensures the rationality of the rotor structure (by meeting the preset rotor solidity), thereby improving the performance and operating stability of the wind turbine as a whole.

[0069] In order to better understand the process of the method for determining the above parameter values, the implementation method flow of determining the above parameter values ​​is described below in combination with an optional embodiment, but it is not used to limit the technical solution of the embodiment of the present application.

[0070] In this embodiment, a method for determining a parameter value is provided. Figure 3 is a flow chart of a method for determining the parameter values ​​of amplitude and wavelength according to an embodiment of the present application, such as Figure 3 As shown, the specific steps are as follows:

[0071] Step S301: construct a parameter optimization table;

[0072] The parameter optimization table is shown in Table 1.

[0073] Table 1

[0074] Amplitude wavelength Chord Length Blade aerodynamic characteristics 0.5％c 5％c 1c -- 1.0％c 7％c 1c -- 1.5％c 9％c 1c -- 2.0％c 11％c 1c -- 2.5％c 13％c 1c -- 3.0％c 15％c 1c --

[0075] Step S302: constructing an amplitude-wavelength orthogonal table;

[0076] Step S303: performing blade aerodynamic simulation according to the amplitude-wavelength orthogonal table;

[0077] Step S304: performing parameter sensitivity analysis on amplitude and wavelength;

[0078] Step S305: adjusting the amplitude and wavelength according to parameter sensitivity;

[0079] Step S306: performing blade aerodynamic simulation according to the adjusted amplitude and wavelength;

[0080] Step S307: determining whether the aerodynamic performance meets the preset aerodynamic performance;

[0081] Step S308: outputting the optimal value when the preset aerodynamic performance is met;

[0082] Step S309: If the preset aerodynamic performance is not met, reconstruct the parameter optimization table.

[0083] For example, the amplitude of the concave and convex leading edge airfoil is h = 1.5% c, and the wavelength λ is 11% c. C is the chord length of the airfoil, and the concave and convex leading edge is as follows Figure 5 As shown, there are two ways to produce the concave-convex leading edge blades in the embodiment of the present application. One is to make the concave-convex leading edge into a mold and suction-cast the blade into one piece. The second is to process the concave-convex leading edge separately and then stick it to the leading edge of the blade by gluing it later.

[0084] In this embodiment, a method for determining a parameter value is provided. Figure 4 is a flow chart of a method for determining a parameter value of a chord length according to an embodiment of the present application. Figure 4 As shown, the specific steps are as follows:

[0085] Step S401: determining a preset airfoil chord length of the blade;

[0086] Step S402: determining the number of blades of the wind turbine;

[0087] Step S403: determining the rotor diameter of the blades;

[0088] Step S404: determining the solidity of the wind rotor, wherein the solidity of the wind rotor = airfoil chord length * number of blades / wind rotor diameter;

[0089] Step S405: determining a blade chord length optimization table;

[0090] Step S406: performing blade aerodynamic simulation according to the blade chord length optimization table;

[0091] Step S407: judging whether the aerodynamic performance meets the preset aerodynamic performance according to the simulation result;

[0092] Step S408: outputting the optimal value when the preset aerodynamic performance is met;

[0093] Step S409: If the preset aerodynamic performance is not met, reconstructing the chord length optimization table.

[0094] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods described in each embodiment of the present application.

[0095] In the present embodiment, a device for determining parameter values ​​is also provided, and the device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions thereof will not be repeated. As used below, the term "module" may implement a combination of software and / or hardware of a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and contemplated.

[0096] Figure 6 is a structural block diagram of a device for determining a parameter value according to an embodiment of the present application, such as Figure 6 As shown, the device comprises:

[0097] A first determination module 62, configured to determine a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade;

[0098] An establishing module 64, configured to establish a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the plurality of first parameter values ​​and the plurality of second parameter values;

[0099] A construction module 66 is used to construct a first blade according to each combination in the first orthogonal table, and perform aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength;

[0100] A second determination module 68, configured to determine a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results;

[0101] A third determination module 70, configured to determine a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and to determine a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value;

[0102] The fourth determination module 72 is used to determine the target parameter value corresponding to the amplitude and the target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0103] Through the above-mentioned device, multiple first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and multiple second parameter values ​​corresponding to the wavelength of the concave-convex leading edge are determined according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; a first orthogonal table of the amplitude and wavelength of the concave-convex leading edge is established according to the multiple first parameter values ​​and the multiple second parameter values; a first blade is constructed according to each combination in the first orthogonal table, and aerodynamic simulation is performed on the first blade to obtain multiple first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength are determined according to the multiple first simulation results; a first functional relationship between the airfoil chord length and the amplitude is determined according to the third parameter value, and a second functional relationship between the airfoil chord length and the wavelength is determined according to the fourth parameter value; a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade are determined according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade. That is, the embodiment of the present application systematically analyzes and optimizes the design parameters of the concave and convex leading edge of the blade, and finally achieves precise control of the parameter values ​​of amplitude and wavelength through experimental design and simulation testing, combined with data analysis and functional relationship determination. Therefore, the problem of being unable to accurately determine the parameter values ​​corresponding to amplitude and wavelength can be solved.

[0104] In an exemplary embodiment, a second determination module 68 is used to determine a first sensitivity of the amplitude to the simulation result and a second sensitivity of the wavelength to the simulation result based on the multiple first simulation results; adjust the multiple first parameter values ​​according to the first sensitivity, and adjust the multiple second parameter values ​​according to the second sensitivity; establish a second orthogonal table of the amplitude and wavelength of the concave and convex leading edge of the blade based on the adjusted multiple first parameter values ​​and the adjusted multiple second parameter values; determine a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength based on the second orthogonal table.

[0105] In an exemplary embodiment, a second determination module 68 is used to construct a second blade according to each combination in the second orthogonal table, and perform aerodynamic simulation on the second blade to obtain multiple second simulation results, wherein each combination in the second orthogonal table includes: any adjusted first parameter value corresponding to the amplitude and any adjusted second parameter value corresponding to the wavelength; determine a blade whose aerodynamic performance meets the preset aerodynamic performance according to the first simulation result and the second simulation result, and determine multiple parameter combinations of blades that meet the preset aerodynamic performance, wherein each parameter combination includes: the parameter value corresponding to the amplitude and the parameter value corresponding to the wavelength; determine a target parameter combination with the best aerodynamic performance among the multiple parameter combinations, and determine the third parameter value and the fourth parameter value according to the target parameter combination.

[0106] In an exemplary embodiment, the fourth determination module 72 is used to determine a fifth parameter value corresponding to the airfoil chord length of the concave-convex leading edge of the blade and a sixth parameter value corresponding to the wind wheel diameter of the blade; construct a third blade according to the fifth parameter value and the sixth parameter value; perform aerodynamic simulation on the third blade to determine a third simulation result; and determine the parameter value of the airfoil chord length of the concave-convex leading edge of the blade according to the third simulation result.

[0107] In an exemplary embodiment, the fourth determination module 72 is used to determine whether the aerodynamic performance of the third blade meets the preset aerodynamic performance based on the third simulation result; when the aerodynamic performance of the third blade meets the preset aerodynamic performance, the fifth parameter value is determined as the parameter value of the airfoil chord length; when the aerodynamic performance of the third blade does not meet the preset aerodynamic performance, the fifth parameter value and the sixth parameter value are adjusted, and the parameter value of the airfoil chord length of the concave and convex leading edge of the blade is determined based on the adjusted fifth parameter value and the adjusted sixth parameter value.

[0108] In an exemplary embodiment, the fourth determination module 72 is used to determine the number of blades of the wind turbine group corresponding to the blade; determine the solidity of the wind rotor of the wind turbine group according to the fifth parameter value, the sixth parameter value and the number of blades; when the solidity of the wind rotor does not meet the preset solidity of the wind rotor, adjust the fifth parameter value and the sixth parameter value, and construct a third blade according to the adjusted fifth parameter value and the adjusted sixth parameter value; when the solidity of the wind rotor meets the preset solidity of the wind rotor, construct a third blade according to the fifth parameter value and the sixth parameter value.

[0109] It should be noted that the above modules can be implemented by software or hardware. For the latter, it can be implemented in the following ways, but not limited to: the above modules are all located in the same processor; or the above modules are located in different processors in any combination.

[0110] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0111] Optionally, in this embodiment, the storage medium may be configured to store program codes for executing the following steps:

[0112] S1, determining a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade;

[0113] S2, establishing a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the multiple first parameter values ​​and the multiple second parameter values;

[0114] S3, constructing a first blade according to each combination in the first orthogonal table, and performing aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength;

[0115] S4, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results;

[0116] S5, determining a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and determining a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value;

[0117] S6, determining a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0118] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0119] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0120] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0121] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0122] S1, determining a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade;

[0123] S2, establishing a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the multiple first parameter values ​​and the multiple second parameter values;

[0124] S3, constructing a first blade according to each combination in the first orthogonal table, and performing aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength;

[0125] S4, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results;

[0126] S5, determining a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and determining a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value;

[0127] S6, determining a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0128] An embodiment of the present application further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the steps in any one of the above method embodiments are implemented.

[0129] An embodiment of the present application further provides another computer program product, including a non-volatile computer-readable storage medium, wherein the non-volatile computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps in any of the above method embodiments are implemented.

[0130] An embodiment of the present application also provides a computer program, which includes computer instructions, which are stored in a computer-readable storage medium; a processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device performs the steps in any one of the above method embodiments.

[0131] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0132] S1, determining a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade;

[0133] S2, establishing a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the multiple first parameter values ​​and the multiple second parameter values;

[0134] S3, constructing a first blade according to each combination in the first orthogonal table, and performing aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength;

[0135] S4, determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results;

[0136] S5, determining a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and determining a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value;

[0137] S6, determining a target parameter value corresponding to the amplitude and a target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

[0138] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0139] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0140] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the principles of the present application shall be included in the protection scope of the present application.

Claims

1. A method for determining a parameter value, characterized in that: include: Determining a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; Establishing a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the plurality of first parameter values ​​and the plurality of second parameter values; Constructing a first blade according to each combination in the first orthogonal table, and performing aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; Determine a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results; Determine a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and determine a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value; The target parameter value corresponding to the amplitude and the target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade are determined according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

2. The method according to claim 1, characterized in that Determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results includes: Determining a first sensitivity of the amplitude to the simulation results and a second sensitivity of the wavelength to the simulation results according to the plurality of first simulation results; adjusting the plurality of first parameter values ​​according to the first sensitivity, and adjusting the plurality of second parameter values ​​according to the second sensitivity; Establishing a second orthogonal table of amplitudes and wavelengths of the concave and convex leading edges of the blade according to the adjusted multiple first parameter values ​​and the adjusted multiple second parameter values; A third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength are determined according to the second orthogonal table.

3. The method according to claim 2, characterized in that Determining a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the second orthogonal table includes: Constructing a second blade according to each combination in the second orthogonal table, and performing aerodynamic simulation on the second blade to obtain a plurality of second simulation results, wherein each combination in the second orthogonal table includes: any adjusted first parameter value corresponding to the amplitude and any adjusted second parameter value corresponding to the wavelength; Determine a blade whose aerodynamic performance meets preset aerodynamic performance according to the first simulation result and the second simulation result, and determine a plurality of parameter combinations of the blade that meets the preset aerodynamic performance, wherein each parameter combination includes: a parameter value corresponding to the amplitude and a parameter value corresponding to the wavelength; A target parameter combination with optimal aerodynamic performance is determined among multiple parameter combinations, and the third parameter value and the fourth parameter value are determined according to the target parameter combination.

4. The method according to claim 1, characterized in that Before determining the target parameter value corresponding to the amplitude and the target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade, the method further includes: Determine a fifth parameter value corresponding to the airfoil chord length of the concave-convex leading edge of the target blade and a sixth parameter value corresponding to the wind wheel diameter of the blade; Constructing the target blade according to the fifth parameter value and the sixth parameter value; Performing aerodynamic simulation on the target blade to determine a third simulation result; A target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade is determined according to the third simulation result.

5. The method according to claim 4, characterized in that Determining a target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade according to the third simulation result includes: Determining whether the aerodynamic performance of the target blade meets the preset aerodynamic performance according to the third simulation result; In a case where the aerodynamic performance of the target blade meets the preset aerodynamic performance, determining the fifth parameter value as a target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade; When the aerodynamic performance of the target blade does not meet the preset aerodynamic performance, the fifth parameter value and the sixth parameter value are adjusted, and the target parameter value of the airfoil chord length of the concave and convex leading edge of the target blade is determined based on the adjusted fifth parameter value and the adjusted sixth parameter value.

6. The method according to claim 4, characterized in that Constructing the target blade according to the fifth parameter value and the sixth parameter value includes: Determine the number of blades of the wind turbine generator set corresponding to the target blade; Determine the solidity of the wind turbine rotor according to the fifth parameter value, the sixth parameter value and the number of blades; When the solidity of the wind rotor does not meet the preset solidity of the wind rotor, the fifth parameter value and the sixth parameter value are adjusted, and the target blade is constructed according to the adjusted fifth parameter value and the adjusted sixth parameter value; In a case where the wind rotor solidity meets a preset wind rotor solidity, the target blade is constructed according to the fifth parameter value and the sixth parameter value.

7. A device for determining a parameter value, characterized in that: include: A first determination module, used to determine a plurality of first parameter values ​​corresponding to the amplitude of the concave-convex leading edge and a plurality of second parameter values ​​corresponding to the wavelength of the concave-convex leading edge according to the parameter value of the airfoil chord length of the concave-convex leading edge of the blade; An establishing module, used for establishing a first orthogonal table of the amplitude and wavelength of the concave-convex front edge according to the multiple first parameter values ​​and the multiple second parameter values; A construction module, configured to construct a first blade according to each combination in the first orthogonal table, and perform aerodynamic simulation on the first blade to obtain a plurality of first simulation results, wherein each combination in the first orthogonal table includes: any first parameter value corresponding to the amplitude and any second parameter value corresponding to the wavelength; A second determination module, configured to determine a third parameter value corresponding to the amplitude and a fourth parameter value corresponding to the wavelength according to the plurality of first simulation results; A third determination module is used to determine a first functional relationship between the airfoil chord length and the amplitude according to the third parameter value, and to determine a second functional relationship between the airfoil chord length and the wavelength according to the fourth parameter value; The fourth determination module is used to determine the target parameter value corresponding to the amplitude and the target parameter value corresponding to the wavelength of the concave-convex leading edge of the target blade according to the first functional relationship, the second functional relationship and the target parameter value of the airfoil chord length of the concave-convex leading edge of the target blade.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the method according to any one of claims 1 to 6 is executed when the program is executed.

9. An electronic device, comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

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