A method and apparatus for determining wind speed information

Abstract

Embodiments of the present application disclose a wind speed information determination method and device. When determining wind speed information, roughness information corresponding to a target region can be acquired first. The roughness information can identify roughnesses corresponding to respective sub-regions. A processing device can analyze a representative roughness corresponding to the target region. The representative roughness is the roughness corresponding to the sub-region with the largest number of sub-regions. Therefore, the representative roughness can accurately reflect the roughness of the target region. Based on this, the processing device can update the roughness of a boundary sub-region corresponding to a plurality of sub-regions to the representative roughness. The boundary sub-region is located at a boundary position of the target region, so that the roughness of the boundary sub-region can be relatively uniform. The processing device can determine wind speed information corresponding to the target region according to the updated roughnesses of the plurality of sub-regions, so as to avoid the problem that the wind speed information is inaccurate due to a sudden change in the roughness of the boundary region.

Description

Technical Field

[0001] This application relates to the field of wind power generation technology, and in particular to a method and apparatus for wind speed information analysis. Background Technology

[0002] Wind speed information is a key factor in determining the effectiveness of wind power generation. Therefore, in order to ensure the stable operation of wind turbines, it is essential to analyze the wind speed in the area where the wind turbines are located.

[0003] In related technologies, the analysis of wind speed information in a region requires the use of the region's roughness information. However, since roughness often changes abruptly in a region, determining wind speed information solely based on actual roughness information may result in low accuracy of the wind speed information, making it difficult to obtain accurate results when performing power generation analysis and wind type analysis based on wind speed information. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a method for determining wind speed information, which can effectively solve the problem of abrupt changes in regional boundary roughness and improve the efficiency and accuracy of wind speed information analysis.

[0005] The embodiments of this application disclose the following technical solutions:

[0006] In a first aspect, embodiments of this application disclose a method for determining wind speed information, the method comprising:

[0007] Obtain the roughness information corresponding to the target region, wherein the target region includes multiple sub-regions, and the roughness information is used to identify the roughness corresponding to each sub-region;

[0008] Based on the roughness information, determine the representative roughness with the largest number of corresponding sub-regions;

[0009] The roughness corresponding to the boundary sub-region in the plurality of sub-regions is updated to the representative roughness, wherein the boundary sub-region is located at the boundary position of the target region;

[0010] Based on the updated roughness of the multiple sub-regions, the wind speed information corresponding to the target region is determined.

[0011] In one possible implementation, determining the wind speed information corresponding to the target region based on the updated roughness of the plurality of sub-regions includes:

[0012] Based on the updated roughness of each sub-region, the initial wind speed information corresponding to each sub-region is determined.

[0013] The wind speed information corresponding to the target region is determined by iterating based on the initial wind speed information and roughness corresponding to each sub-region. The wind speed information and roughness corresponding to the boundary sub-region remain unchanged during the iteration process.

[0014] In one possible implementation, the iteration includes N iterations, where the wind speed information corresponding to each sub-region determined in the Nth iteration causes the iteration function to converge. The step of iterating based on the initial wind speed information and roughness corresponding to each sub-region to determine the wind speed information corresponding to the target region includes:

[0015] In the i-th iteration, the target wind speed information corresponding to the non-boundary sub-region is determined according to the iteration function and the wind speed information and roughness corresponding to each sub-region. The target wind speed information is used as the wind speed information corresponding to the non-boundary sub-region in the (i+1)-th iteration. The non-boundary sub-region is the sub-region other than the boundary sub-region among the multiple sub-regions.

[0016] The wind speed information corresponding to each sub-region determined in the Nth iteration is used as the wind speed information corresponding to the target region.

[0017] In one possible implementation, before determining the initial wind speed information corresponding to each sub-region based on the updated roughness corresponding to each sub-region, the method further includes:

[0018] The roughness corresponding to the non-boundary sub-region is updated to the representative roughness, wherein the non-boundary sub-region is the sub-region other than the boundary sub-region among the plurality of sub-regions;

[0019] The iteration based on the initial wind speed information and roughness corresponding to each sub-region includes:

[0020] The process is iterated based on the initial wind speed information and updated roughness corresponding to the boundary sub-region, and the initial wind speed information and unupdated roughness corresponding to the non-boundary sub-region.

[0021] In one possible implementation, the method further includes:

[0022] Obtain the region parameter information corresponding to the multiple sub-regions respectively;

[0023] The step of iteratively determining the wind speed information corresponding to the target region based on the initial wind speed information and roughness corresponding to each sub-region includes:

[0024] The wind speed information corresponding to the target area is determined by iterating through the initial wind speed information, roughness information, and area parameter information corresponding to each sub-region.

[0025] In one possible implementation, the regional parameter information includes any one or more combinations of regional height information and boundary condition information.

[0026] In one possible implementation, the area height information is determined based on the distance from the center point of the sub-region to the ground.

[0027] In one possible implementation, the method further includes:

[0028] Based on the wind speed information corresponding to the target area, the wind type and wind speed distribution corresponding to the target area are determined, as well as the power generation and power generation safety of the target wind turbine, wherein the target wind turbine is located in the target area.

[0029] Secondly, embodiments of this application disclose a wind speed information determination device, which includes a first acquisition unit, a first determination unit, a first update unit, and a second determination unit:

[0030] The first acquisition unit is used to acquire roughness information corresponding to the target region, wherein the target region includes multiple sub-regions, and the roughness information is used to identify the roughness corresponding to each sub-region.

[0031] The first determining unit is used to determine the representative roughness with the largest number of corresponding sub-regions based on the roughness information.

[0032] The first update unit is used to update the roughness corresponding to the boundary sub-region among the plurality of sub-regions to the representative roughness, wherein the boundary sub-region is located at the boundary position of the target region;

[0033] The second determining unit is used to determine the wind speed information corresponding to the target area based on the roughness corresponding to the updated multiple sub-regions respectively.

[0034] In one possible implementation, the second determining unit is specifically used for:

[0035] Based on the updated roughness of each sub-region, the initial wind speed information corresponding to each sub-region is determined.

[0036] The wind speed information corresponding to the target region is determined by iterating based on the initial wind speed information and roughness corresponding to each sub-region. The wind speed information and roughness corresponding to the boundary sub-region remain unchanged during the iteration process.

[0037] In one possible implementation, the iteration includes N iterations, where the wind speed information corresponding to each sub-region determined in the Nth iteration causes the iteration function to converge. The second determining unit is specifically used for:

[0038] In the i-th iteration, the target wind speed information corresponding to the non-boundary sub-region is determined according to the iteration function and the wind speed information and roughness corresponding to each sub-region. The target wind speed information is used as the wind speed information corresponding to the non-boundary sub-region in the (i+1)-th iteration. The non-boundary sub-region is the sub-region other than the boundary sub-region among the multiple sub-regions.

[0039] The wind speed information corresponding to each sub-region determined in the Nth iteration is used as the wind speed information corresponding to the target region.

[0040] In one possible implementation, the device further includes a second update unit:

[0041] The second update unit is used to update the roughness corresponding to the non-boundary sub-region to the representative roughness, wherein the non-boundary sub-region is a sub-region other than the boundary sub-region among the plurality of sub-regions.

[0042] The second determining unit is specifically used for:

[0043] The process is iterated based on the initial wind speed information and updated roughness corresponding to the boundary sub-region, and the initial wind speed information and unupdated roughness corresponding to the non-boundary sub-region.

[0044] In one possible implementation, the device further includes a second acquisition unit:

[0045] The second acquisition unit is used to acquire the region parameter information corresponding to the plurality of sub-regions respectively;

[0046] The second determining unit is specifically used for:

[0047] The wind speed information corresponding to the target area is determined by iterating through the initial wind speed information, roughness information, and area parameter information corresponding to each sub-region.

[0048] In one possible implementation, the regional parameter information includes any one or more combinations of regional height information and boundary condition information.

[0049] In one possible implementation, the area height information is determined based on the distance from the center point of the sub-region to the ground.

[0050] In one possible implementation, the device further includes a third determining unit:

[0051] The third determining unit is used to determine the wind type and wind speed distribution corresponding to the target area based on the wind speed information corresponding to the target area, as well as the power generation and power generation safety of the target wind turbine, wherein the target wind turbine is located in the target area.

[0052] As can be seen from the above technical solution, when determining wind speed information, the roughness information corresponding to the target area can be obtained first. This target area includes multiple sub-regions, and the roughness information can identify the roughness corresponding to each sub-region. Therefore, based on this roughness information, the processing device can analyze the representative roughness corresponding to the target area. This representative roughness is the roughness with the most sub-regions, thus it can accurately reflect the roughness of the target area. Based on this, the processing device can update the roughness corresponding to the boundary sub-regions among the multiple sub-regions to this representative roughness. These boundary sub-regions are located at the boundary of the target area, thus ensuring that the roughness of the boundary sub-regions is relatively uniform and avoiding abrupt changes in roughness. The processing device can determine the wind speed information corresponding to the target area based on the updated roughness of each of the multiple sub-regions, thereby avoiding the problem of inaccurate wind speed information caused by abrupt changes in roughness in the boundary regions. Attached Figure Description

[0053] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0054] Figure 1 A flowchart illustrating a method for determining wind speed information provided in an embodiment of this application;

[0055] Figure 2 A schematic diagram illustrating a method for determining wind speed information in a practical application scenario, provided by an embodiment of this application;

[0056] Figure 3 This is a structural block diagram of a wind speed information determination device provided in an embodiment of this application. Detailed Implementation

[0057] The embodiments of this application will now be described with reference to the accompanying drawings.

[0058] Analyzing wind speed information is a crucial step in ensuring the stability of wind power generation. In related technologies, the roughness of the region is one of the important parameters for analyzing wind speed information. For example, CFD simulation can be used to determine the wind speed information of a region. CFD simulation requires defined boundary conditions, which are critical for wind resource simulation regions. When defining boundary conditions, the roughness of the grid region is a key parameter, directly affecting the distribution of inlet velocity. Wind resource CFD simulation needs to consider the influence of actual terrain; in complex terrain conditions, the inlet bottom surface is not flat. In time engineering projects, roughness is non-uniform. If the surface conditions of the boundary region vary greatly, roughness will become uneven, with the roughness difference between two adjacent grid centers reaching 100,000 times. In such cases, using CFD simulation may result in poor accuracy of the obtained wind speed, making it difficult to accurately reflect actual wind speed conditions.

[0059] To address the aforementioned technical problems, this application provides a method for determining wind speed information. The processing device can determine a representative roughness of the target area to replace the roughness of the boundary area. This effectively avoids abrupt changes in the roughness of the boundary area while ensuring its accuracy, thereby improving the efficiency and accuracy of wind speed information analysis.

[0060] Understandably, this method can be applied to processing devices capable of determining wind speed information, such as terminal devices or servers with wind speed determination capabilities. This method can be executed independently by a terminal device or server, or it can be applied in network scenarios where the terminal device and server communicate, executing in cooperation. The terminal device can be a computer, mobile phone, or similar device. The server can be an application server or a web server; in actual deployment, this server can be a standalone server or a cluster server.

[0061] Next, with reference to the accompanying drawings, a method for determining wind speed information provided in an embodiment of this application will be described.

[0062] See Figure 1 , Figure 1 A flowchart of a wind speed information determination method provided in this application embodiment, the method including:

[0063] S101: Obtain the roughness information corresponding to the target area.

[0064] The target area is the region for which the wind speed information is determined. This target area includes multiple sub-regions; for example, it can be divided into multiple grid regions, each corresponding to a sub-region. To determine the wind speed information corresponding to the target area, the processing device can acquire the roughness information corresponding to the target area. This roughness information is used to identify the roughness of each sub-region.

[0065] S102: Based on the roughness information, determine the representative roughness with the largest number of corresponding sub-regions.

[0066] Understandably, due to the complexity and diversity of ground conditions, different sub-regions may correspond to different roughnesses. However, the ground conditions within the same region often have certain similarities. Based on this, the processing device can statistically analyze the roughness corresponding to each sub-region and determine the representative roughness that corresponds to the most sub-regions. This representative roughness is the roughness that can reflect the overall ground condition of the target area.

[0067] S103: Update the roughness of the boundary sub-regions in multiple sub-regions to the representative roughness.

[0068] The roughness of the boundary sub-regions is a crucial piece of fundamental information when determining wind speed information for the target area. If the roughness of these sub-regions changes abruptly due to actual ground conditions, the final wind speed information may be inaccurate. For example, determining the wind speed for the target area may require first determining the initial wind speed for each boundary sub-region. This initial wind speed is fundamental to determining the wind speed information for the target area. This initial wind speed is determined based on the roughness of the corresponding boundary sub-region, for instance, by calculation using a function relating roughness and wind speed. Therefore, a sudden change in roughness will cause abrupt changes in the initial wind speed information of adjacent boundary sub-regions. In reality, wind speeds in adjacent regions are often quite consistent. Therefore, relying solely on actual roughness information to determine the wind speed for the target area will lead to inaccurate information.

[0069] To avoid this technical problem, the processing device can update the roughness corresponding to the boundary sub-regions among multiple sub-regions to a representative roughness. This boundary sub-region is located at the boundary of the target region, thus preventing abrupt changes in the roughness of the boundary sub-regions. Since this representative roughness reflects the true roughness of the target region, it will not affect the accuracy of the final determined wind speed information.

[0070] S104: Determine the wind speed information corresponding to the target area based on the roughness of the updated sub-regions.

[0071] As can be seen from the above technical solution, when determining wind speed information, the roughness information corresponding to the target area can be obtained first. This target area includes multiple sub-regions, and the roughness information can identify the roughness corresponding to each sub-region. Therefore, based on this roughness information, the processing device can analyze the representative roughness corresponding to the target area. This representative roughness is the roughness with the most sub-regions, thus it can accurately reflect the roughness of the target area. Based on this, the processing device can update the roughness corresponding to the boundary sub-regions among the multiple sub-regions to this representative roughness. These boundary sub-regions are located at the boundary of the target area, thus ensuring that the roughness of the boundary sub-regions is relatively uniform and avoiding abrupt changes in roughness. The processing device can determine the wind speed information corresponding to the target area based on the updated roughness of each of the multiple sub-regions, thereby avoiding the problem of inaccurate wind speed information caused by abrupt changes in roughness in the boundary regions.

[0072] Specifically, in one possible implementation, when determining the wind speed information of the target area, the processing device can determine the initial wind speed information of each sub-region based on the updated roughness of each sub-region. Then, iterates based on the initial wind speed information and roughness of each sub-region to determine the wind speed information corresponding to the target area. To ensure the accuracy of the iteration process, the processing device can set some basic information to remain unchanged during the iteration process. For example, the roughness of the wind speed information corresponding to the boundary sub-regions can be set to remain unchanged during the iteration process, thereby ensuring that each iteration has relatively realistic and accurate basic information for calculation.

[0073] In one possible implementation, the iteration can include N iterations. The wind speed information corresponding to each sub-region determined in the Nth iteration enables the convergence of the iteration function, which is used to calculate the parameters obtained in each iteration. For example, in the i-th iteration, the processing device can determine the target wind speed information corresponding to the non-boundary sub-region based on the iteration function and the wind speed and roughness corresponding to each sub-region. This target wind speed information serves as the wind speed information corresponding to the non-boundary sub-region in the (i+1)-th iteration. The non-boundary sub-region is a sub-region other than the boundary sub-region among multiple sub-regions. Thus, during this iteration, the processing device can continuously simulate the wind speed information of the non-boundary sub-region based on the wind speed information of each sub-region until it obtains wind speed information that satisfies the convergence of the iteration function. The wind speed information that satisfies the convergence of the iteration function is the wind speed information that closely matches the actual wind speed. The processing device can determine the wind speed information corresponding to each sub-region determined in the Nth iteration as the wind speed information corresponding to the target region.

[0074] Understandably, in the above iteration process, the initial wind speed information of the non-boundary sub-region is calculated based on the actual roughness. Since the roughness of the non-boundary sub-region can also change abruptly, this can lead to a significant difference between the initial wind speed information and the actual wind speed information, requiring multiple iterations to obtain the final result. As mentioned above, representative roughness reflects the actual ground conditions of the target area; therefore, the initial wind speed information calculated based on representative roughness can, to some extent, be closer to the final wind speed calculation result.

[0075] Based on this, in one possible implementation, before determining the initial wind speed information corresponding to each sub-region based on the updated roughness of each sub-region, the processing device can also update the roughness corresponding to the non-boundary sub-region to the representative roughness. The non-boundary sub-region is the sub-region other than the boundary sub-region among multiple sub-regions. This makes the initial wind speed information of the non-boundary sub-region closer to the final calculation result when calculating the initial wind speed information, thus reducing the number of iterations.

[0076] In addition, during iteration, in order to make the wind speed information more consistent with the actual situation and ensure the accuracy of the iteration, the processing device can iterate based on the initial wind speed information and updated roughness corresponding to the boundary sub-region, as well as the initial wind speed information and unupdated roughness corresponding to the non-boundary sub-region, thereby ensuring that the wind speed information of the non-boundary sub-region obtained by iteration is consistent with the actual situation.

[0077] In addition to iterating based on roughness and wind speed information, one possible implementation, to further improve the accuracy of wind speed determination, can also acquire regional parameter information corresponding to multiple sub-regions. This regional parameter information reflects the regional geographical conditions of each sub-region. Then, the processing device can iterate based on the initial wind speed information, roughness, and regional parameter information corresponding to each sub-region to determine the wind speed information corresponding to the target region. This allows for analysis of the wind speed information of the target region from multiple dimensions, resulting in more accurate analysis results.

[0078] The regional parameter information may include any one or more combinations of regional height information and boundary condition information. The regional height information may be determined based on the distance from the center point of the sub-region to the ground. The boundary condition information may include information such as boundary terrain and boundary curves. The boundary condition information may be collected based on the actual situation or set by relevant personnel.

[0079] After determining the wind speed information corresponding to the target area, the processing equipment can use this information to determine the wind type, wind speed distribution, power generation capacity, and power generation safety of the target wind turbine located within the target area. Because this method yields relatively accurate wind speed information, it also provides more accurate application results in various subsequent applications, contributing to the stable operation of wind power generation.

[0080] To facilitate understanding of the technical solutions provided in the embodiments of this application, the following will introduce a method for determining wind speed information provided in the embodiments of this application in conjunction with a practical application scenario.

[0081] See Figure 2 , Figure 2 This is a schematic diagram illustrating a method for determining wind speed information in a practical application scenario provided by an embodiment of this application. The processing device may include four modules, S1 to S4. Module S1 reads a roughness file and mesh information through two different programs. The mesh information identifies each sub-region corresponding to the target area. The roughness reading program is compatible with both ".map" and ".tiff" roughness formats. Module S2 statistically analyzes the read roughness information and takes the mode of the roughness values ​​as the representative roughness of the target area. Additionally, this module calculates the distance from the center of each sub-region to the ground surface, which serves as the area height information corresponding to the sub-region. Module S3 calculates the initial wind speed information corresponding to each sub-region based on the roughness values ​​and area height information calculated by module S2, according to user-defined boundary conditions. The roughness of each sub-region is replaced with the representative roughness during calculation. This initial wind speed information can be calculated using the following function:

[0082] When z <z s hour:

[0083]

[0084] When z s <z<z h hour:

[0085]

[0086]

[0087] When z>z h hour:

[0088] u = u g

[0089] Where z s It is the surface height, z h It is the height of the atmospheric boundary layer, ug It's the earth turning into wind, u * It is the frictional velocity, and L is the Moning-Obukhov length. This is the Moning-Obkhoff function.

[0090] The S4 module's function is divided into two parts: one part writes the initial wind speed information of the boundary sub-region to the corresponding velocity file, and the other part writes the initial wind speed information calculated for the non-boundary sub-region to the corresponding file for the internal field. The processing device can iterate based on these velocity files to finally obtain the wind speed information corresponding to the target area.

[0091] Based on the wind speed information determination method provided in the above embodiments, this application also provides a wind speed information determination device, see [link to relevant documentation]. Figure 3 , Figure 3 This application provides a structural block diagram of a wind speed information determination device 300, which includes a first acquisition unit 301, a first determination unit 302, a first update unit 303, and a second determination unit 304.

[0092] The first acquisition unit 301 is used to acquire roughness information corresponding to the target area, wherein the target area includes multiple sub-regions, and the roughness information is used to identify the roughness corresponding to each sub-region.

[0093] The first determining unit 302 is used to determine the representative roughness with the largest number of corresponding sub-regions based on the roughness information.

[0094] The first update unit 303 is used to update the roughness corresponding to the boundary sub-region in the plurality of sub-regions to the representative roughness, wherein the boundary sub-region is located at the boundary position of the target region.

[0095] The second determining unit 304 is used to determine the wind speed information corresponding to the target area based on the roughness corresponding to the updated multiple sub-regions respectively.

[0096] In one possible implementation, the second determining unit 304 is specifically used for:

[0097] Based on the updated roughness of each sub-region, the initial wind speed information corresponding to each sub-region is determined.

[0098] The wind speed information corresponding to the target region is determined by iterating based on the initial wind speed information and roughness corresponding to each sub-region. The wind speed information and roughness corresponding to the boundary sub-region remain unchanged during the iteration process.

[0099] In one possible implementation, the iteration includes N iterations, where the wind speed information corresponding to each sub-region determined in the Nth iteration causes the iteration function to converge. The second determining unit 304 is specifically used for:

[0100] In the i-th iteration, the target wind speed information corresponding to the non-boundary sub-region is determined according to the iteration function and the wind speed information and roughness corresponding to each sub-region. The target wind speed information is used as the wind speed information corresponding to the non-boundary sub-region in the (i+1)-th iteration. The non-boundary sub-region is the sub-region other than the boundary sub-region among the multiple sub-regions.

[0101] The wind speed information corresponding to each sub-region determined in the Nth iteration is used as the wind speed information corresponding to the target region.

[0102] In one possible implementation, device 300 further includes a second update unit:

[0103] The second update unit is used to update the roughness corresponding to the non-boundary sub-region to the representative roughness, wherein the non-boundary sub-region is a sub-region other than the boundary sub-region among the plurality of sub-regions.

[0104] The second determining unit 304 is specifically used for:

[0105] The process is iterated based on the initial wind speed information and updated roughness corresponding to the boundary sub-region, and the initial wind speed information and unupdated roughness corresponding to the non-boundary sub-region.

[0106] In one possible implementation, the device 300 further includes a second acquisition unit:

[0107] The second acquisition unit is used to acquire the region parameter information corresponding to the plurality of sub-regions respectively;

[0108] The second determining unit 304 is specifically used for:

[0109] The wind speed information corresponding to the target area is determined by iterating through the initial wind speed information, roughness information, and area parameter information corresponding to each sub-region.

[0110] In one possible implementation, the regional parameter information includes any one or more combinations of regional height information and boundary condition information.

[0111] In one possible implementation, the area height information is determined based on the distance from the center point of the sub-region to the ground.

[0112] In one possible implementation, the device 300 further includes a third determining unit:

[0113] The third determining unit is used to determine the wind type and wind speed distribution corresponding to the target area based on the wind speed information corresponding to the target area, as well as the power generation and power generation safety of the target wind turbine, wherein the target wind turbine is located in the target area.

[0114] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium can be at least one of the following media: read-only memory (ROM), RAM, magnetic disk, or optical disk, etc., and other media capable of storing program code.

[0115] It should be noted that the various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, for the device and system embodiments, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiments. The device and system embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of the solution in this embodiment according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0116] The above description is merely one specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for determining wind speed information, characterized in that, The method includes: Obtain the roughness information corresponding to the target region, wherein the target region includes multiple sub-regions, and the roughness information is used to identify the roughness corresponding to each sub-region; Based on the roughness information, determine the representative roughness with the largest number of corresponding sub-regions; The roughness corresponding to the boundary sub-region in the plurality of sub-regions is updated to the representative roughness, wherein the boundary sub-region is located at the boundary position of the target region; Based on the updated roughness of each of the multiple sub-regions, the wind speed information corresponding to the target region is determined; the determination of the wind speed information corresponding to the target region based on the updated roughness of each of the multiple sub-regions includes: Based on the updated roughness of each sub-region, the initial wind speed information corresponding to each sub-region is determined. The wind speed information corresponding to the target region is determined by iterating based on the initial wind speed information and roughness corresponding to each sub-region, while the wind speed information and roughness corresponding to the boundary sub-region remain unchanged during the iteration process; The iteration includes N iterations. The wind speed information corresponding to each sub-region determined in the Nth iteration causes the iteration function to converge. The step of iterating based on the initial wind speed information and roughness corresponding to each sub-region to determine the wind speed information corresponding to the target region includes: In the i-th iteration, the target wind speed information corresponding to the non-boundary sub-region is determined according to the iteration function and the wind speed information and roughness corresponding to each sub-region. The target wind speed information is used as the wind speed information corresponding to the non-boundary sub-region in the (i+1)-th iteration. The non-boundary sub-region is the sub-region other than the boundary sub-region among the multiple sub-regions. The wind speed information corresponding to each sub-region determined in the Nth iteration is used as the wind speed information corresponding to the target region.

2. The method according to claim 1, characterized in that, Before determining the initial wind speed information corresponding to each sub-region based on the updated roughness of each sub-region, the method further includes: The roughness corresponding to the non-boundary sub-region is updated to the representative roughness, wherein the non-boundary sub-region is the sub-region other than the boundary sub-region among the plurality of sub-regions; The iteration based on the initial wind speed information and roughness corresponding to each sub-region includes: The process is iterated based on the initial wind speed information and updated roughness corresponding to the boundary sub-region, and the initial wind speed information and unupdated roughness corresponding to the non-boundary sub-region.

3. The method according to claim 1, characterized in that, The method further includes: Obtain the region parameter information corresponding to the multiple sub-regions respectively; The step of iteratively determining the wind speed information corresponding to the target region based on the initial wind speed information and roughness corresponding to each sub-region includes: The wind speed information corresponding to the target area is determined by iterating through the initial wind speed information, roughness information, and area parameter information corresponding to each sub-region.

4. The method according to claim 3, characterized in that, The regional parameter information includes any one or more combinations of regional height information and boundary condition information.

5. The method according to claim 4, characterized in that, The regional height information is determined based on the distance from the center point of the sub-region to the ground.

6. The method according to claim 1, characterized in that, The method further includes: Based on the wind speed information corresponding to the target area, the wind type and wind speed distribution corresponding to the target area are determined, as well as the power generation and power generation safety of the target wind turbine, wherein the target wind turbine is located in the target area.

7. A wind speed information determination device, used to perform the method according to any one of claims 1-6, characterized in that, The device includes a first acquisition unit, a first determination unit, a first update unit, and a second determination unit: The first acquisition unit is used to acquire roughness information corresponding to the target region, wherein the target region includes multiple sub-regions, and the roughness information is used to identify the roughness corresponding to each sub-region. The first determining unit is used to determine the representative roughness with the largest number of corresponding sub-regions based on the roughness information; The first update unit is used to update the roughness corresponding to the boundary sub-region among the plurality of sub-regions to the representative roughness, wherein the boundary sub-region is located at the boundary position of the target region; The second determining unit is used to determine the wind speed information corresponding to the target area based on the updated roughness of the multiple sub-regions respectively; The second determining unit is specifically used for: Based on the updated roughness of each sub-region, the initial wind speed information corresponding to each sub-region is determined. The wind speed information corresponding to the target area is determined by iterating based on the initial wind speed information and roughness corresponding to each sub-region. The wind speed information and roughness corresponding to the boundary sub-region remain unchanged during the iteration process. The iteration includes N iterations. The wind speed information corresponding to each sub-region determined in the Nth iteration causes the iteration function to converge. The step of iterating based on the initial wind speed information and roughness corresponding to each sub-region to determine the wind speed information corresponding to the target region includes: in the i-th iteration, determining the target wind speed information corresponding to the non-boundary sub-region based on the iteration function and the wind speed information and roughness corresponding to each sub-region. The target wind speed information is used as the wind speed information corresponding to the non-boundary sub-region in the (i+1)-th iteration. The non-boundary sub-region is the sub-region other than the boundary sub-region among the multiple sub-regions. The wind speed information corresponding to each sub-region determined in the Nth iteration is determined as the wind speed information corresponding to the target region.

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