Wind speed calculation method, system, electronic device and storage medium for wind turbine

Abstract

The application provides a wind speed calculation method of a wind power generator, a wind speed calculation system of a wind power generator, a computer readable storage medium and an electronic device, and belongs to the field of wind power generation. The wind speed calculation method of the wind power generator comprises the following steps: calculating a wake decay factor of an upstream wind turbine relative to a downstream wind turbine according to the distance between the upstream wind turbine and the downstream wind turbine; constructing a wake decay factor model according to the law of conservation of momentum, substituting the wake decay factor into the wake decay factor model, and calculating an average wind speed decay factor generated by the upstream wind turbine on the downstream wind turbine; calculating a total wind speed decay value of the downstream wind turbine according to the average wind speed decay factor; and calculating the actual wind speed of the downstream wind turbine according to the total wind speed decay value of the downstream wind turbine. The application calculates the average wind speed decay factor by constructing the wake decay factor model. The wake decay is accurately calculated to improve the evaluation accuracy of the power generation capacity of a wind power plant.

Description

Technical Field

[0001] This invention relates to the field of wind turbine technology, specifically to a wind turbine wind speed calculation method, a wind turbine wind speed calculation system, a computer-readable storage medium, and an electronic device. Background Technology

[0002] Large-scale offshore and onshore wind farms have sometimes overestimated their power generation during the initial wind resource assessment process. This is mainly because the wake generated by upstream wind turbines cannot be accurately assessed, which in turn makes it impossible to accurately assess the actual wind speed of downstream wind turbines, resulting in a loss of power generation.

[0003] After passing upstream wind turbines, wind speed decreases while turbulence and wind shear increase, leading to a decline in wind energy quality. Research reports indicate that the wake generated by upstream wind turbines can cause downstream turbines to lose 10-20% of their power. Studying wake distribution in wind farms is crucial for guiding wind farm development. Reasonable turbine placement and accurate power generation estimation can significantly reduce the investment and construction risks of wind farms.

[0004] Existing wake calculation methods in wind power plants do not accurately calculate wake attenuation, failing to accurately assess the actual wind speed of downstream turbines and consequently, the power generation of those turbines. This invention proposes a wind turbine wind speed calculation method, a wind turbine wind speed calculation system, a computer-readable storage medium, and an electronic device, which can improve the accuracy of wind farm power generation assessment. Summary of the Invention

[0005] The purpose of this invention is to provide a wind turbine wind speed calculation method, a wind turbine wind speed calculation system, a computer-readable storage medium, and an electronic device to improve the accuracy of wind farm power generation assessment.

[0006] To achieve the above objectives, a first aspect of the present invention provides a method for calculating the wind speed of a wind turbine, the method comprising the following steps:

[0007] Obtain the distance between the upstream and downstream wind turbines, and calculate the wake attenuation factor of the upstream wind turbine relative to the downstream wind turbine;

[0008] Based on the law of conservation of momentum, a wake attenuation factor model is constructed. The wake attenuation factor is substituted into the wake attenuation factor model to calculate the average wind speed attenuation factor of the upstream wind turbine on the downstream wind turbine.

[0009] Calculate the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor;

[0010] The actual wind speed of the downstream fan is calculated based on the total wind speed attenuation value of the downstream fan.

[0011] Preferably, the distance between the upstream wind turbine j and the downstream wind turbine i is obtained in the following way:

[0012] Obtain the j-coordinate (x) of the upstream wind turbine respectively j ,y j ) and downstream wind turbine i-coordinate (x i ,y i );

[0013] By combining formulas 1, 2, and 3, the axial distance x between the upstream fan j and the downstream fan i can be calculated. ij With radial distance y ij ;in,

[0014]

[0015]

[0016]

[0017] Where, θ ij θ represents the direction of the wake generated by upstream fan j on downstream fan i. W Indicates a given wind direction.

[0018] Preferably, the wake attenuation factor model is as follows:

[0019]

[0020] Where x is the axial distance between upstream fan j and downstream fan i, and r is the radial distance between upstream fan j and downstream fan i. Let A be the average wind speed attenuation factor generated by upstream wind turbine j on downstream wind turbine i. overlap A represents the overlap area between the upstream wind turbine wake and the downstream wind turbine. r δ represents the swept area of ​​the downstream wind turbine blades. ij (x,r) represents the wake attenuation factor of upstream wind turbine j relative to downstream wind turbine i.

[0021] Preferably, the calculation of the average wind speed attenuation factor generated by the upstream wind turbine on the downstream wind turbine is as follows:

[0022] Based on the Gaussian wake model, the wake attenuation factor of the upstream wind turbine on the downstream wind turbine is calculated. Substituting this wake attenuation factor into the wake attenuation factor model, the average wind speed attenuation factor is calculated. The Gaussian wake model is specifically as follows:

[0023]

[0024]

[0025]

[0026] Among them, C t Where σ is the thrust coefficient of the wind turbine, σ is the wake width, D0 is the blade diameter of the upstream wind turbine, and Z is the thrust coefficient of the wind turbine. h ε represents the hub height of the wind turbine; ε represents the original wake width. k is the linear growth rate of the wake, k≈0.35I a I a The intensity of environmental turbulence.

[0027] Preferably, the method further includes:

[0028] Based on the global coordinate system (x, r) of upstream wind turbine j, a local coordinate system (r′, θ′) is established based on downstream wind turbine i. The wake attenuation factor model is then transformed using polar coordinates. The specific formula for the polar coordinate transformation is as follows:

[0029] x = x ij Formula 8;

[0030]

[0031] The wake attenuation factor model is as follows:

[0032]

[0033] Preferably, the calculation of the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor specifically involves:

[0034] The wind speed attenuation of upstream wind turbine j on downstream wind turbine i is calculated based on the average wind speed attenuation factor, and the calculation formula is as follows:

[0035]

[0036] The total wind speed attenuation of a downstream wind turbine due to the combined effects of multiple upstream wind turbines is calculated using the following formula:

[0037]

[0038] Where X represents the coordinates of downstream wind turbine i, X = (x, y), j = (1, 2, 3, ..., n), u in,j This refers to the inflow velocity of the upstream fan.

[0039] Preferably, the calculation of the actual wind speed of the downstream wind turbine based on the total wind speed attenuation value of the downstream wind turbine specifically involves:

[0040] The actual wind speed of the downstream wind turbines is obtained by subtracting the total wind speed attenuation of the downstream wind turbines from the free-flow wind speed at the wind farm. The calculation formula is as follows:

[0041]

[0042] Among them, u i (X) represents the actual wind speed of downstream fan i, u ∞ The free-flow wind speed is the wind speed in the wind field.

[0043] Secondly, embodiments of the present invention provide a wind turbine wind speed calculation system, comprising:

[0044] The wind turbine selection module is used to select downstream wind turbines and upstream wind turbines that can cause wake effects on the downstream wind turbines, and is also used to calculate the distance between the upstream wind turbines and the downstream wind turbines.

[0045] The wake attenuation factor calculation module is used to calculate the wake attenuation factor of the upstream wind turbine relative to the downstream wind turbine based on the distance between the upstream and downstream wind turbines.

[0046] The average wind speed attenuation factor calculation module is used to construct a wake attenuation factor model based on the law of conservation of momentum, and to substitute the wake attenuation factor into the wake attenuation factor model to calculate the average wind speed attenuation factor generated by the upstream wind turbine on the downstream wind turbine.

[0047] The total wind speed attenuation value calculation module is used to calculate the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor.

[0048] The actual wind speed calculation module is used to calculate the actual wind speed of the downstream wind turbine based on the total wind speed attenuation value of the downstream wind turbine.

[0049] Thirdly, embodiments of the present invention provide a computer-readable storage medium storing computer instructions that, when executed on a computer, cause the computer to perform the wind speed calculation method for a wind turbine as described above.

[0050] Fourthly, embodiments of the present invention provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the wind speed calculation method for a wind turbine as described above.

[0051] This invention constructs a wake attenuation factor model to calculate the average wind speed attenuation factor, accurately calculating wake attenuation to improve the accuracy of wind farm power generation assessment. Using the velocity attenuation factor from the Gaussian wake model as the wake attenuation factor allows for a more accurate simulation of the wake impact of upstream wind turbines on downstream wind turbines, and a more accurate assessment of the power generation of downstream wind turbines.

[0052] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0053] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0054] Figure 1 This is a flowchart of a wind turbine wind speed calculation method provided by one embodiment of the present invention;

[0055] Figure 2 This is a wind turbine layout diagram of a wind farm provided by one embodiment of the present invention;

[0056] Figure 3 This is a schematic diagram illustrating the wake effect of an upstream wind turbine on a downstream wind turbine, provided by one embodiment of the present invention. Detailed Implementation

[0057] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0058] Figure 1 This is a flowchart of a wind turbine wind speed calculation method according to one embodiment of the present invention. Figure 1 As shown, in a first aspect, this embodiment provides a method for calculating the wind speed of a wind turbine, the method comprising the following steps:

[0059] S1. Obtain the distance between the upstream and downstream wind turbines, and calculate the wake attenuation factor of the upstream wind turbine relative to the downstream wind turbine;

[0060] In this embodiment, obtaining the distance between the upstream wind turbine j and the downstream wind turbine i specifically involves:

[0061] Obtain the j-coordinate (x) of the upstream wind turbine respectively j ,y j ) and downstream wind turbine i-coordinate (x i ,y i );

[0062] By combining formulas 1, 2, and 3, the axial distance x between the upstream fan j and the downstream fan i can be calculated. ij With radial distance y ij ;in,

[0063]

[0064]

[0065]

[0066] Where, θ ijθ represents the direction of the wake generated by upstream fan j on downstream fan i. W Indicates a given wind direction.

[0067] Specifically, obtain the wind turbine location layout diagram of the wind farm, and determine the upstream and downstream wind turbines based on the diagram. Then, obtain the coordinates of the upstream and downstream wind turbines, and calculate the axial and radial distances between them.

[0068] In this embodiment, the wake attenuation factor is calculated based on the Gaussian wake model. The wake attenuation factor is then substituted into the wake attenuation factor model to calculate the average wind speed attenuation factor. Specifically, the Gaussian wake model is as follows:

[0069]

[0070]

[0071]

[0072] Among them, C t Where σ is the thrust coefficient of the wind turbine, σ is the wake width, D0 is the blade diameter of the upstream wind turbine, and Z is the thrust coefficient of the wind turbine. h ε represents the hub height of the wind turbine; ε represents the original wake width. k is the linear growth rate of the wake, k≈0.35I a I a The intensity of environmental turbulence.

[0073] The wake attenuation factor calculated by the Gaussian wake model is substituted into the wake attenuation factor model to calculate the average wind speed attenuation factor. Using the velocity attenuation factor in the Gaussian wake model as the wake attenuation factor can more accurately simulate the wake impact of upstream wind turbines on downstream wind turbines and more accurately assess the power generation of downstream wind turbines.

[0074] In this embodiment, the method further includes:

[0075] Based on the global coordinate system (x, r) of upstream wind turbine j, a local coordinate system (r′, θ′) is established based on downstream wind turbine i. The wake attenuation factor model is then transformed using polar coordinates. The specific formula for the polar coordinate transformation is as follows:

[0076] x = x ij Formula 8;

[0077]

[0078] The wake attenuation factor model is as follows:

[0079]

[0080] To facilitate the calculation of Formula 4, a polar coordinate system is established for the downstream wind turbine relative to the upstream wind turbine. The coordinates of the upstream wind turbine are then expressed through the polar coordinate system of the downstream wind turbine, making the calculation simpler.

[0081] S2. Based on the law of conservation of momentum, construct a wake attenuation factor model and calculate the average wind speed attenuation factor generated by the upstream wind turbine on the downstream wind turbine.

[0082] In this embodiment, the wake attenuation factor model is specifically as follows:

[0083]

[0084] Where x is the axial distance between upstream fan j and downstream fan i, and r is the radial distance between upstream fan j and downstream fan i. A is the average wind speed attenuation factor caused by upstream wind turbine j at downstream wind turbine i. overlap A represents the overlap area between the upstream wind turbine wake and the downstream wind turbine. r δ represents the swept area of ​​the downstream wind turbine blades. ij (x,r) represents the wake attenuation factor of upstream wind turbine j relative to downstream wind turbine i.

[0085] Specifically, if part or all of the impeller surface of the downstream fan is located within the influence range of the upstream fan, then, based on the law of conservation of momentum, an equation for the wake attenuation factor caused by the upstream fan to the downstream fan is established. S3. Calculate the total wind speed attenuation value of the downstream fan based on the average wind speed attenuation factor;

[0086] In this embodiment, the calculation of the total wind speed attenuation value of the downstream wind turbine based on the wake attenuation factor specifically involves:

[0087] The wind speed attenuation of upstream wind turbine j on downstream wind turbine i is calculated based on the average wind speed attenuation factor. The calculation formula is as follows:

[0088]

[0089] The total wind speed attenuation of a downstream wind turbine due to the combined effects of multiple upstream wind turbines is calculated using the following formula:

[0090]

[0091] Where X represents the coordinates of downstream wind turbine i, X = (x, y), j = (1, 2, 3, ..., n), u in,j This refers to the inflow velocity of the upstream fan.

[0092] Specifically, it is necessary to identify multiple upstream wind turbines that cause wake effects on downstream wind turbines in the wind turbine layout diagram, calculate the wind speed attenuation caused by each upstream wind turbine to the downstream wind turbine according to the above method, and then add up the multiple wind speed attenuations to obtain the total wind speed attenuation value of the downstream wind turbine.

[0093] S4. Calculate the actual wind speed of the downstream fan based on the total wind speed attenuation value of the downstream fan.

[0094] In this embodiment, the calculation of the actual wind speed of the downstream wind turbine based on the total wind speed attenuation value of the downstream wind turbine specifically involves:

[0095] The wind speed of the downstream wind turbines is equal to the free-flow wind speed of the wind farm minus the total wind speed attenuation of the downstream wind turbines. The calculation formula is as follows:

[0096]

[0097] Among them, u i (X) represents the actual wind speed of downstream fan i, u ∞ This refers to the free-flow wind speed at the wind farm.

[0098] Secondly, this embodiment provides a wind turbine wind speed calculation system, including:

[0099] The wind turbine selection module is used to select downstream wind turbines and upstream wind turbines that can cause wake effects on the downstream wind turbines, and is also used to calculate the distance between the upstream wind turbines and the downstream wind turbines.

[0100] The wake attenuation factor calculation module is used to calculate the wake attenuation factor of the upstream wind turbine relative to the downstream wind turbine based on the distance between the upstream and downstream wind turbines.

[0101] The average wind speed attenuation factor calculation module is used to construct a wake attenuation factor model based on the law of conservation of momentum, and to substitute the wake attenuation factor into the wake attenuation factor model to calculate the average wind speed attenuation factor generated by the upstream wind turbine on the downstream wind turbine.

[0102] The total wind speed attenuation value calculation module is used to calculate the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor.

[0103] The actual wind speed calculation module is used to calculate the actual wind speed of the downstream wind turbine based on the total wind speed attenuation value of the downstream wind turbine.

[0104] Thirdly, embodiments of the present invention provide a computer-readable storage medium storing computer instructions that, when executed on a computer, cause the computer to perform the wind speed calculation method for a wind turbine as described above.

[0105] Fourthly, embodiments of the present invention provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the wind speed calculation method for a wind turbine as described above.

[0106] Specifically, provide a wind farm, and a diagram showing the wind turbine locations within the wind farm, as shown below. Figure 2 As shown, this wind farm uses 4MW wind turbines with blade diameters of 130m and tower heights of 90m. The free-flow wind speed u is to be calculated. ∞ At a wind speed of 5 m / s and a wind direction of 117°, the wake effect at turbine positions S3, S1, and S20 is as follows: turbulence intensity at 5 m / s is Ia = 9.7%, and the turbine inference coefficient Ct = 0.8380. For example... Figure 3 As shown, S3 is the upstream wind turbine of S1, S1 is the upstream wind turbine of S20, and both S3 and S1 are upstream wind turbines of S20. Their turbine coordinates are shown in Table 1.

[0107] S3 2151 649 S1 1158 1114 S20 195 1657

[0108] Table 1: Coordinates of positions S1, S2, and S3

[0109] The following provides a specific calculation method for calculating the actual wind speed of fan S20:

[0110] A. Given a wind direction θ W =117 ° Next, calculate the axial distance x between the upstream fan j = S3 and the downstream fan i = S1. ij and radial distance r ij .

[0111] B. Calculate the wake attenuation factor of the upstream wind turbine j = S3 on the downstream wind turbine i = S1 using the Gaussian wake model. For example... Figure 3 As shown, a polar coordinate system is established for the downstream fan i = S1, and the coordinates of the upstream fan j = S3 are transformed. The transformed coordinates of the downstream fan i = S1 and the upstream fan j = S3 are then substituted into the Gaussian wake model to calculate the wake attenuation factor of the upstream fan j = S3 on the downstream fan i = S1.

[0112] C. Substitute the wake attenuation factor into the wake attenuation model to calculate the average wind speed attenuation factor of the upstream wind turbine j = S3 to the downstream wind turbine i = S1.

[0113] D. Calculate the wind speed attenuation of the upstream wind turbine j = S3 to the downstream wind turbine i = S1 according to formula 11, where u in,j This is the free wind speed. After calculating the wind speed attenuation of the downstream fan i = S1, the inflow wind speed of the downstream fan i = S1 can be calculated according to Formula 13.

[0114] E. Repeat steps AC to obtain the average wind speed attenuation factor of upstream fan j = S1 for downstream fan i = S20.

[0115] F. Then, according to Formula 11, calculate the wind speed attenuation of the upstream fan j = S1 for the downstream fan i = S20.

[0116] G. Calculate the total wind speed attenuation of the downstream fan i = S20 according to formula 12;

[0117] H. Calculate the actual wind speed of the downstream fan i = S20 according to Formula 13.

[0118] Those skilled in the art will understand that all or part of the steps in the methods of the above embodiments can be implemented by a program instructing related hardware. This program is stored in a storage medium and includes several instructions to cause a microcontroller, chip, or processor to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as a USB flash drive, a portable hard drive, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0119] The optional embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details described above. Within the scope of the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical solutions of the embodiments of the present invention, and these simple modifications all fall within the protection scope of the embodiments of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the embodiments of the present invention will not further describe the various possible combinations.

[0120] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the embodiments of the present invention, they should also be regarded as the content disclosed by the embodiments of the present invention.

Claims

1. A method for calculating wind speed of a wind turbine generator, characterized in that, The method includes the following steps: Calculate the wake attenuation factor of the upstream wind turbine relative to the downstream wind turbine based on the distance between the upstream and downstream wind turbines; Based on the law of conservation of momentum, a wake attenuation factor model is constructed. The wake attenuation factor is substituted into the wake attenuation factor model to calculate the average wind speed attenuation factor of the upstream wind turbine on the downstream wind turbine. Calculate the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor; Calculate the actual wind speed of the downstream fan based on the total wind speed attenuation value of the downstream fan; Specifically, the calculation of the average wind speed attenuation factor generated by the upstream wind turbine on the downstream wind turbine is as follows: Based on the Gaussian wake model, the wake attenuation factor of the upstream wind turbine on the downstream wind turbine is calculated. The wake attenuation factor is then substituted into the wake attenuation factor model to calculate the average wind speed attenuation factor. The wake attenuation factor model is specifically as follows: Official 4; in, For upstream wind turbines Downstream wind turbines The axial distance between them For upstream wind turbines Downstream wind turbines radial distance between For upstream wind turbines For downstream wind turbines The resulting average wind speed attenuation factor, This represents the overlap area between the upstream fan wake and the downstream fan. This indicates the swept area of ​​the downstream wind turbine blades. Indicates upstream wind turbine Compared to downstream wind turbines The wake attenuation factor; The Gaussian wake model is specifically as follows: Official 5; Official 6; Official 7; in, This represents the thrust coefficient of the wind turbine. Wake width, The diameter of the blades of the upstream wind turbine. This refers to the hub height of the wind turbine; The original wake width, , The linear growth rate of the wake is... , The intensity of environmental turbulence.

2. The wind speed calculation method for wind turbines according to claim 1, characterized in that, The upstream wind turbine Downstream wind turbines The distance between them is obtained in the following way: Obtain upstream wind turbines respectively coordinate and downstream wind turbines coordinate ; The upstream wind turbine can be calculated by combining formulas 1, 2, and 3. Downstream wind turbines axial distance between radial distance ;in, Official 1; Official 2; Official 3; in, Representing upstream wind turbines For downstream wind turbines The direction of the resulting wake wind, Indicates a given wind direction.

3. The wind speed calculation method for wind turbines according to claim 1, characterized in that, The method further includes: Upstream wind turbine global coordinate system Based on downstream wind turbines Establish a local coordinate system The wake attenuation factor model is transformed using polar coordinates; specifically, the polar coordinate transformation formula is as follows: Official 8; Official 9; The wake attenuation factor model is as follows: Official 10.

4. The wind speed calculation method for wind turbines according to claim 3, characterized in that, The calculation of the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor is specifically as follows: Calculate the upstream wind turbine based on the average wind speed attenuation factor. For downstream wind turbines The formula for calculating wind speed attenuation is: Official 11; The total wind speed attenuation of a downstream wind turbine due to the combined effects of multiple upstream wind turbines is calculated using the following formula: Official 12; in, For upstream wind turbines For downstream wind turbines The resulting average wind speed attenuation factor, For downstream wind turbines coordinates , The inflow velocity of the upstream fan. j =1,2,3,…,n.

5. The wind speed calculation method for wind turbines according to claim 4, characterized in that, The calculation of the actual wind speed of the downstream wind turbine based on the total wind speed attenuation value of the downstream wind turbine is specifically as follows: The actual wind speed of the downstream wind turbines is obtained by subtracting the total wind speed attenuation of the downstream wind turbines from the free-flow wind speed at the wind farm. The calculation formula is as follows: Official 13; in, For downstream wind turbines The actual wind speed This refers to the free-flow wind speed at the wind farm.

6. A wind turbine wind speed calculation system, characterized in that, include: The wind turbine selection module is used to select downstream wind turbines and upstream wind turbines that can cause wake effects on the downstream wind turbines, and is also used to calculate the distance between the upstream wind turbines and the downstream wind turbines. The wake attenuation factor calculation module is used to calculate the wake attenuation factor of the upstream wind turbine relative to the downstream wind turbine based on the distance between the upstream and downstream wind turbines. The average wind speed attenuation factor calculation module is used to construct a wake attenuation factor model based on the law of conservation of momentum, and to substitute the wake attenuation factor into the wake attenuation factor model to calculate the average wind speed attenuation factor generated by the upstream wind turbine on the downstream wind turbine. The total wind speed attenuation value calculation module is used to calculate the total wind speed attenuation value of the downstream wind turbine based on the average wind speed attenuation factor. The actual wind speed calculation module is used to calculate the actual wind speed of the downstream wind turbine based on the total wind speed attenuation value of the downstream wind turbine. The average wind speed attenuation factor calculation module is also used to calculate the wake attenuation factor of the upstream wind turbine to the downstream wind turbine according to the Gaussian wake model, and to substitute the wake attenuation factor into the wake attenuation factor model to calculate the average wind speed attenuation factor. The wake attenuation factor model is specifically as follows: Official 4; in, For upstream wind turbines Downstream wind turbines The axial distance between them For upstream wind turbines Downstream wind turbines radial distance between For upstream wind turbines For downstream wind turbines The resulting average wind speed attenuation factor, This represents the overlap area between the upstream fan wake and the downstream fan. This indicates the swept area of ​​the downstream wind turbine blades. Indicates upstream wind turbine Compared to downstream wind turbines The wake attenuation factor; The Gaussian wake model is specifically as follows: Official 5; Official 6; Official 7; in, This represents the thrust coefficient of the wind turbine. Wake width, The diameter of the blades of the upstream wind turbine. This refers to the hub height of the wind turbine; The original wake width, , The linear growth rate of the wake is... , The intensity of environmental turbulence.

7. A computer-readable storage medium storing computer instructions, characterized in that, When the computer instructions are executed on the computer, the computer performs the wind speed calculation method for wind turbines as described in any one of claims 1-5.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the wind speed calculation method for wind turbine generators as described in any one of claims 1-5.

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