System for calculating and analyzing bearing capacity of land wind power foundation influenced by wind power environment

Abstract

The invention discloses a system for calculating and analyzing the bearing capacity of a land wind power foundation influenced by a wind power environment, which comprises an environment data acquisition module, a transmission and storage module, a calculation and analysis system and a touch screen control display interface, and relates to the technical field of wind turbine generator construction. According to the system for calculating and analyzing the bearing capacity of the land wind power foundation influenced by the wind power environment, the calculation and analysis system is arranged, a three-dimensional foundation model is established, and the load conditions of the wind power foundation under the conditions of different wind speeds and different wind speed directions are tested by simulating the change of the wind power environment; the bearing extreme value of the wind power foundation under different wind power influences is calculated, the bearing capacity of the wind power foundation under the wind power effect can be accurately evaluated through simulation test, and a scientific basis is provided for design and safe operation of the wind power foundation; and the accuracy of analysis and calculation is improved by effectively combining the load conditions under the conditions of different wind speeds and different wind speed directions.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine construction, and in particular to a system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment. Background Art

[0002] With the rapid development of the wind power industry, the design and safety of wind power foundations have become the focus of attention. The wind forces on wind power foundations are complex and changeable, and traditional design methods are difficult to accurately assess the impact of wind.

[0003] The name of the reference patent is: Method and system for calculating the vertical bearing capacity of pipe piles based on big data analysis (patent publication number: CN112861290A, patent publication date: 2021-05-28), wherein the method includes: obtaining historical test data of each pipe pile; using big data analysis technology to process the mechanical parameters in the basic database to determine the standard mechanical parameters; constructing a mechanical model of the pipe pile to be analyzed; calculating the vertical bearing capacity of the pipe pile to be analyzed according to the mechanical model to obtain the vertical bearing capacity of the pipe pile to be analyzed; the corresponding system includes a basic database construction module, a big data analysis module, a mechanical model construction module and a vertical bearing capacity analysis module, which optimizes the historical test data, determines the mechanical parameters used to construct the basic database according to the optimized data, and proposes a new method for determining the vertical bearing capacity of pipe piles, which is conducive to improving the accuracy of pipe pile bearing capacity calculation.

[0004] Based on the description in the above documents, the existing wind power foundation not only bears the gravity of the wind turbines, but also will be subject to a greater bearing capacity when affected by wind. With the changes in the wind force bearing area, the changes in wind speed and the changes in wind speed direction under the influence of the slope, the bearing conditions vary greatly. The current existing analysis methods fail to cover the above factors, so that the analysis results have large deviations. For this reason, the present invention provides a bearing capacity calculation and analysis system for land wind power foundations affected by wind environment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment, which solves the problem that the existing wind power foundation not only bears the gravity of the wind turbines, but is also subject to a greater bearing capacity when affected by wind, and the bearing capacity changes greatly with changes in the wind force-bearing area, wind speed, and wind speed direction under the influence of the slope.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment, comprising:

[0007] Environmental data collection module, used to collect geographical location, topography and meteorological data of the required construction area;

[0008] The transmission and storage module transmits data remotely for data storage and subsequent analysis operations;

[0009] The calculation and analysis system can simulate and analyze the load-bearing conditions of wind power foundations under the influence of wind power, including:

[0010] The basic model building unit builds a three-dimensional basic model according to the collected parameters, and introduces the actually set wind power basic data into the three-dimensional basic model for association;

[0011] The load analysis unit simulates the changes in the wind environment to test the load conditions of the wind power foundation under different wind speeds and wind speed directions, and calculates the load limit of the wind power foundation under the influence of different wind forces, and then transmits the results;

[0012] The safety assessment unit evaluates the actual situation of the wind power foundation and forms optimization suggestions based on the calculation results;

[0013] The touch screen control display interface allows personnel to adjust the simulation environment through the touch screen operation interface and display the changed parameter data.

[0014] Preferably, the operation of establishing the three-dimensional basic model in the basic model establishing unit is:

[0015] A1. According to the geographical location and topography of the construction area, and then associated with the wind power foundation design parameters, the installation setting of the wind power foundation in the construction area is realized;

[0016] A2. Then, based on the setting of A1, wind turbines are installed and set, and the directions of the wind turbine foundation are determined to form the required three-dimensional foundation model;

[0017] A3. Wind simulation is achieved by controlling the input air volume and introducing a three-dimensional basic model test.

[0018] Preferably, the steps of determining the load conditions of the wind power foundation under different wind speeds and wind speed directions in the load analysis unit are:

[0019] B1. Set the wind power foundation to a truncated cone shape, and determine the input direction with the greatest impact under the same wind speed and horizontal direction according to the terrain conditions;

[0020] B2. The wind turbine foundation is most affected when it is perpendicular to the contact surface of the wind turbine foundation. Therefore, the wind direction is kept consistent based on the input direction with the greatest impact in the horizontal direction, and then the wind speed is adjusted to analyze the bearing capacity of the wind turbine foundation.

[0021] B3. After completing B2, reset the data. When wind power transmission encounters a slope, it will show a downward trend, which will increase the wind speed. The bearing capacity of the wind power foundation can be analyzed by adjusting the wind speed based on different slopes.

[0022] Preferably, the operation of adjusting the wind speed in B2 to analyze the bearing capacity of the wind power foundation is:

[0023] b21. Set a wind input point M at a distance from the vertical center axis of the wind power foundation and in the input direction with the greatest impact of the horizontal wind force, and keep the distance between the wind input point M and the vertical center axis of the wind power foundation the same;

[0024] b22. Then, the wind speed is changed by adjusting the wind volume in the horizontal direction, and the bearing limit of the wind power foundation is determined according to the dynamic changes between the wind power foundation and the wind turbine generator set;

[0025] b23. After determining the load-bearing extreme value based on the dynamic changes, the calculation operation of the load-bearing extreme value is implemented.

[0026] Preferably, the operation of analyzing the bearing capacity of the wind power foundation based on adjusting the wind speed at different slopes in B3 is:

[0027] b31. Set the wind input point N at different slopes and at a distance from the vertical center axis of the wind power foundation, and keep the input point N at the same distance from the vertical center axis of the wind power foundation;

[0028] b32. Then, the wind speed is changed by synchronously adjusting the wind volume at different slopes, and the bearing limit of the wind power foundation is determined according to the dynamic changes between the wind power foundation and the wind turbine generator set;

[0029] b33. After determining the load-bearing extreme value based on the dynamic changes, the calculation operation of the load-bearing extreme value is implemented.

[0030] Preferably, in the operations b22 and b32, the operation of determining the bearing limit of the wind power foundation according to the dynamic changes between the wind power foundation and the wind turbine generator set is:

[0031] C1. Realize the co-location acquisition operation of the wind power foundation and the overhead image of the wind turbine generator set, and then realize the analysis operation of the image data;

[0032] C2. Establish the coordinate axis with the same position corner point of the image data as the origin, and establish the X axis with the origin toward one image boundary direction, and then establish the Y axis with the origin toward another image boundary direction perpendicular to the X axis, and then determine the top coordinate point before the test at the vertical center axis of the wind power foundation and the wind turbine group as P1 (x1, y1), and then mark the top coordinate point in the subsequent test as P2 (x2, y2);

[0033] C3. Set the bending deviation between the wind turbine foundation and the wind turbine set to L, and then compare the distance between point P1 and point P2 with the bending deviation. If the distance exceeds the bending deviation L, it exceeds the bearing limit.

[0034] Preferably, the formula for calculating the distance between point P1 and point P2 in C3 is:

[0035]

[0036] And J is the distance between point P1 and point P2, and when J ≥ L, the load-bearing limit between the wind power foundation and the wind turbine under wind force calculation is reached.

[0037] Preferably, the calculation operation of carrying extreme values ​​in b23 and b33 is:

[0038] F=(1 / 2)×r×ρ×S×V 2 ;

[0039] F is the wind load limit of the wind turbine foundation, r is the air resistance coefficient, ρ is the air density, S is the wind-receiving area of ​​the wind turbine foundation and wind turbine, and V represents the wind speed when in contact with the object;

[0040] S=π×[(H1×R1)+(H2×R2)];

[0041] H1 is the height of the wind turbine foundation, R1 is the bottom diameter of the wind turbine foundation, H2 is the height of the wind turbine after removing the wind turbine foundation, and R2 is the bottom diameter of the wind turbine.

[0042] Preferably, the wind speed analysis operation from the wind input point M to the wind power foundation in B2 is:

[0043] D11. Calculate the speed reduction ratio of each wind test before the load limit is encountered;

[0044] D12, and then calculate the wind speed V1 when it contacts the object at the load limit based on the average speed reduction ratio;

[0045] Single speed reduction ratio calculation formula: kn = V un / V wn , kn represents the nth speed reduction ratio, V un represents the wind speed when it contacts the object for the nth time, V wn represents the input wind speed at the nth wind input point M;

[0046] The average speed reduction ratio calculation formula is:

[0047] k 平 =[(V u1 / V w1 )+(V u2 / V w2 )+…+(V un / V wn )] / n;

[0048] The calculation formula of wind speed V when it contacts the object at the load limit is: V1 = V m ×k 平 , V m Represents the input wind speed at the wind input point M when it is at the load limit.

[0049] Preferably, the wind speed analysis operation from the wind input point N to the wind power foundation in B3 is:

[0050] D21, extract the slope at the load limit and mark it as α;

[0051] D22, and then calculate the wind speed V2 when it contacts the object at the load limit according to the slope α;

[0052] V2=(Sinα / 2)×(V g ) 2 ;

[0053] And V g Represents the input wind speed at the wind input point N when it is at the load limit.

[0054] Beneficial Effects

[0055] The present invention provides a system for calculating and analyzing the bearing capacity of a land wind power foundation affected by the wind environment. Compared with the prior art, it has the following beneficial effects:

[0056] (1) The bearing capacity calculation and analysis system of the land wind power foundation affected by the wind environment is provided with a calculation and analysis system, a three-dimensional foundation model is established, and the load conditions of the wind power foundation under different wind speeds and wind speed directions are tested by simulating the changes in the wind environment, and the bearing extreme value of the wind power foundation under the influence of different wind forces is calculated. Through the simulation test, the bearing capacity of the wind power foundation under the action of wind force can be accurately evaluated, providing a scientific basis for the design and safe operation of the wind power foundation, and effectively combining the load conditions under different wind speeds and wind speed directions to improve the accuracy of the analysis and calculation.

[0057] (2) The bearing capacity calculation and analysis system of the land wind power foundation affected by the wind environment realizes the change of wind speed by synchronously adjusting the wind volume at different slopes, and judges the bearing limit of the wind power foundation according to the dynamic changes between the wind power foundation and the wind turbine. It combines the direction of wind transmission with the wind force, wind direction and the wind support caused by the influence of mountain factors, so that multiple directions can be considered during the measurement and analysis, and the accuracy of data calculation can be improved, so as to facilitate the subsequent adjustment and optimization for different situations.

[0058] (3) The bearing capacity calculation and analysis system of the land wind power foundation affected by the wind environment realizes the same-position acquisition operation of the overhead image of the wind power foundation and the wind turbine group, and then realizes the analysis operation of the image data, sets the bending deviation between the wind power foundation and the wind turbine group, and then compares the distance between the calculated point P1 and the point P2 with the bending deviation. If the distance exceeds the bending deviation, it exceeds the bearing limit, thereby effectively and quickly realizing the judgment of the bearing condition and realizing a more accurate analysis operation of the bearing capacity calculation. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a principle block diagram of the bearing capacity calculation and analysis system of the present invention;

[0060] Figure 2 The following is a flowchart of the operation of establishing a three-dimensional basic model of the present invention;

[0061] Figure 3 is an operation flow chart of the load analysis unit of the present invention;

[0062] Figure 4 It is a logic flow chart of the bearing capacity calculation and analysis system of the present invention. DETAILED DESCRIPTION

[0063] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0064] See also Figure 1-Figure 4 , the present invention provides two technical solutions:

[0065] Embodiment 1: A system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment, comprising:

[0066] Environmental data collection module, used to collect geographical location, topography and meteorological data of the required construction area;

[0067] The transmission and storage module transmits data remotely for data storage and subsequent analysis operations;

[0068] The calculation and analysis system can simulate and analyze the load-bearing conditions of wind power foundations under the influence of wind power, including:

[0069] The basic model building unit builds a three-dimensional basic model according to the collected parameters, and introduces the actually set wind power basic data into the three-dimensional basic model for association;

[0070] The load analysis unit simulates the changes in the wind environment to test the load conditions of the wind power foundation under different wind speeds and wind speed directions, and calculates the load limit of the wind power foundation under the influence of different wind forces, and then transmits the results;

[0071] The safety assessment unit evaluates the actual situation of the wind power foundation and forms optimization suggestions based on the calculation results;

[0072] The touch screen control display interface allows personnel to adjust the simulation environment through the touch screen operation interface and display the changed parameter data.

[0073] The safety assessment unit combines the specific situation of the assessment results with the actual meteorological data. After extracting the meteorological data of previous years, it determines whether there have been wind conditions that exceed the load-bearing limit in the past. Then, the analyzed wind power foundation and wind turbine deviation areas are reinforced or the design parameters are adjusted to optimize the specific load-bearing limit.

[0074] Among them, by setting up a calculation and analysis system, a three-dimensional foundation model is established, and by simulating the changes in the wind environment, the load conditions of the wind power foundation under different wind speeds and wind speed directions are tested, and the bearing limit of the wind power foundation under different wind forces is calculated. Through simulation tests, the bearing capacity of the wind power foundation under the action of wind force can be accurately evaluated, providing a scientific basis for the design and safe operation of the wind power foundation, and effectively combining the load conditions under different wind speeds and wind speed directions to improve the accuracy of analysis and calculation.

[0075] In the embodiment of the present invention, the operation of establishing the three-dimensional basic model in the basic model establishing unit is:

[0076] A1. According to the geographical location and topography of the construction area, and then associated with the wind power foundation design parameters, the installation setting of the wind power foundation in the construction area is realized;

[0077] A2. Then, based on the setting of A1, wind turbines are installed and set, and the directions of the wind turbine foundation are determined to form the required three-dimensional foundation model;

[0078] A3. Wind simulation is achieved by controlling the input air volume and introducing a three-dimensional basic model test.

[0079] In the embodiment of the present invention, the steps of determining the load conditions of the wind power foundation under different wind speeds and wind speed directions in the load analysis unit are as follows:

[0080] B1. Set the wind power foundation to a truncated cone shape, and determine the input direction with the greatest impact under the same wind speed and horizontal direction according to the terrain conditions;

[0081] B2. The wind turbine foundation is most affected when it is perpendicular to the contact surface of the wind turbine foundation. Therefore, the wind direction is kept consistent based on the input direction with the greatest impact in the horizontal direction, and then the wind speed is adjusted to analyze the bearing capacity of the wind turbine foundation.

[0082] B3. After completing B2, reset the data. When wind power transmission encounters a slope, it will show a downward trend, which will increase the wind speed. The bearing capacity of the wind power foundation can be analyzed by adjusting the wind speed based on different slopes.

[0083] In the embodiment of the present invention, the operation of adjusting the wind speed to analyze the bearing capacity of the wind power foundation in B2 is:

[0084] b21. Set a wind input point M at a distance from the vertical center axis of the wind power foundation and in the input direction with the greatest impact of the horizontal wind force, and keep the distance between the wind input point M and the vertical center axis of the wind power foundation the same;

[0085] b22. Then, the wind speed is changed by adjusting the wind volume in the horizontal direction, and the bearing limit of the wind power foundation is determined according to the dynamic changes between the wind power foundation and the wind turbine generator set;

[0086] b23. After determining the load-bearing extreme value based on the dynamic changes, the calculation operation of the load-bearing extreme value is implemented.

[0087] In the embodiment of the present invention, the operation of analyzing the bearing capacity of the wind power foundation based on adjusting the wind speed at different slopes in B3 is:

[0088] b31. Set the wind input point N at different slopes and at a distance from the vertical center axis of the wind power foundation, and keep the input point N at the same distance from the vertical center axis of the wind power foundation;

[0089] b32. Then, the wind speed is changed by synchronously adjusting the wind volume at different slopes, and the bearing limit of the wind power foundation is determined according to the dynamic changes between the wind power foundation and the wind turbine generator set;

[0090] b33. After determining the load-bearing extreme value based on the dynamic changes, the calculation operation of the load-bearing extreme value is implemented.

[0091] Among them, the change of wind speed is achieved by synchronously adjusting the wind volume at different slopes, and the bearing limit of the wind power foundation is judged according to the dynamic changes between the wind power foundation and the wind turbines. In this way, the direction of wind transmission is considered, and the wind force, wind direction and wind support caused by the influence of mountain factors are combined. This allows multi-directional considerations to be made during measurement and analysis, thereby improving the accuracy of data calculation and facilitating subsequent adjustments and optimizations for different situations.

[0092] In the embodiment of the present invention, the operation of determining the bearing limit of the wind power foundation according to the dynamic changes between the wind power foundation and the wind turbine generator set in the b22 and b32 operations is:

[0093] C1. Realize the co-location acquisition operation of the wind power foundation and the overhead image of the wind turbine generator set, and then realize the analysis operation of the image data;

[0094] C2. Establish the coordinate axis with the same position corner point of the image data as the origin, and establish the X axis with the origin toward one image boundary direction, and then establish the Y axis with the origin toward another image boundary direction perpendicular to the X axis, and then determine the top coordinate point before the test at the vertical center axis of the wind power foundation and the wind turbine group as P1 (x1, y1), and then mark the top coordinate point in the subsequent test as P2 (x2, y2);

[0095] C3. Set the bending deviation between the wind turbine foundation and the wind turbine set to L, and then compare the distance between point P1 and point P2 with the bending deviation. If the distance exceeds the bending deviation L, it exceeds the bearing limit.

[0096] In the embodiment of the present invention, the formula for calculating the distance between point P1 and point P2 in C3 is:

[0097]

[0098] And J is the distance between point P1 and point P2, and when J ≥ L, the load-bearing limit between the wind power foundation and the wind turbine under wind force calculation is reached.

[0099] By acquiring the overhead images of the wind turbine foundation and the wind turbine generator set at the same position, and then analyzing the image data, the bending deviation between the wind turbine foundation and the wind turbine generator set is set, and then the distance between the points P1 and P2 is compared with the bending deviation. If the distance exceeds the bending deviation, it exceeds the bearing limit, thereby effectively and quickly determining the bearing condition and achieving a more accurate analysis operation for the bearing capacity calculation.

[0100] In the embodiment of the present invention, the calculation operation of the bearing extreme value in b23 and b33 is:

[0101] F=(1 / 2)×r×ρ×S×V 2 ;

[0102] F is the wind load limit of the wind turbine foundation, r is the air resistance coefficient, ρ is the air density, S is the wind-receiving area of ​​the wind turbine foundation and wind turbine, and V represents the wind speed when in contact with the object;

[0103] S=π×[(H1×R1)+(H2×R2)];

[0104] H1 is the height of the wind turbine foundation, R1 is the bottom diameter of the wind turbine foundation, H2 is the height of the wind turbine after removing the wind turbine foundation, and R2 is the bottom diameter of the wind turbine.

[0105] In the embodiment of the present invention, the wind speed analysis operation from the wind input point M to the wind power foundation in B2 is:

[0106] D11. Calculate the speed reduction ratio of each wind test before the load limit is encountered;

[0107] D12, and then calculate the wind speed V1 when it contacts the object at the load limit based on the average speed reduction ratio;

[0108] Single speed reduction ratio calculation formula: kn = V un / V wn , kn represents the nth speed reduction ratio, V un represents the wind speed when it contacts the object for the nth time, V wn represents the input wind speed at the nth wind input point M;

[0109] The average speed reduction ratio calculation formula is:

[0110] k 平 =[(V u1 / V w1 )+(V u2 / V w2 )+…+(V un / V wn )] / n;

[0111] The calculation formula of wind speed V when it contacts the object at the load limit is: V1 = V m ×k 平 , V m Represents the input wind speed at the wind input point M when it is at the load limit.

[0112] In the embodiment of the present invention, the wind speed analysis operation from the wind input point N to the wind power foundation in B3 is:

[0113] D21, extract the slope at the load limit and mark it as α;

[0114] D22, and then calculate the wind speed V2 when it contacts the object at the load limit according to the slope α;

[0115] V2=(Sinα / 2)×(V g ) 2 ;

[0116] And V g Represents the input wind speed at the wind input point N when it is at the load limit.

[0117] Embodiment 2 is different from Embodiment 1 in that the present invention also uses the existing bearing capacity calculation and analysis system and the bearing capacity calculation and analysis system of the land wind power foundation affected by the wind environment of the present invention to realize the measurement operation of the set multiple types of wind power foundations, and the corresponding measured wind power foundation bearing extreme value interval is known, and then the measured bearing extreme value is recorded and compared with the known bearing extreme value interval, and then the time for completing the bearing capacity simulation analysis is recorded. The specific results are shown in Table 1:

[0118] Table 1 Simulation results

[0119] The accuracy of the results Time required for simulation analysis Existing bearing capacity calculation and analysis system 88％ 56min Bearing capacity calculation and analysis system of the present invention 98％ 23min

[0120] To sum up, by performing analysis and measurement operations using the bearing capacity calculation and analysis system of the present invention, the final analysis and measurement results are more accurate and the time required to complete the simulation measurement and analysis is shorter. Therefore, the use of the bearing capacity calculation and analysis system of the present invention can better achieve optimization and improvement of design data.

[0121] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0122] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0123] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment, characterized in that: include: Environmental data collection module, used to collect geographical location, topography and meteorological data of the required construction area; The transmission and storage module transmits data remotely for data storage and subsequent analysis operations; The calculation and analysis system can simulate and analyze the load-bearing conditions of wind power foundations under the influence of wind power, including: The basic model building unit builds a three-dimensional basic model according to the collected parameters, and introduces the actually set wind power basic data into the three-dimensional basic model for association; The load analysis unit simulates the changes in the wind environment to test the load conditions of the wind power foundation under different wind speeds and wind speed directions, and calculates the load limit of the wind power foundation under the influence of different wind forces, and then transmits the results; The safety assessment unit evaluates the actual situation of the wind power foundation and forms optimization suggestions based on the calculation results; The touch screen control display interface allows personnel to adjust the simulation environment through the touch screen operation interface and display the changed parameter data.

2. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 1, characterized in that: The operation of establishing the three-dimensional basic model in the basic model establishing unit is: A1. According to the geographical location and topography of the construction area, and then associated with the wind power foundation design parameters, the installation setting of the wind power foundation in the construction area is realized; A2. Then, based on the setting of A1, wind turbines are installed and set, and the directions of the wind turbine foundation are determined to form the required three-dimensional foundation model; A3. Wind simulation is achieved by controlling the input air volume and introducing a three-dimensional basic model test.

3. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 1, characterized in that: The steps for determining the load conditions of the wind power foundation under different wind speeds and wind speed directions in the load analysis unit are as follows: B1. Set the wind power foundation to a truncated cone shape, and determine the input direction with the greatest impact under the same wind speed and horizontal direction according to the terrain conditions; B2. The wind turbine foundation is most affected when it is perpendicular to the contact surface of the wind turbine foundation. Therefore, the wind direction is kept consistent based on the input direction with the greatest impact in the horizontal direction, and then the wind speed is adjusted to analyze the bearing capacity of the wind turbine foundation. B3. After completing B2, reset the data. When wind power transmission encounters a slope, it will show a downward trend, which will increase the wind speed. The bearing capacity of the wind power foundation can be analyzed by adjusting the wind speed based on different slopes.

4. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 3, characterized in that: The operation of adjusting the wind speed in B2 to analyze the bearing capacity of the wind power foundation is: b21. Set a wind input point M at a distance from the vertical center axis of the wind power foundation and in the input direction with the greatest impact of the horizontal wind force, and keep the distance between the wind input point M and the vertical center axis of the wind power foundation the same; b22. Then, the wind speed is changed by adjusting the wind volume in the horizontal direction, and the bearing limit of the wind power foundation is determined according to the dynamic changes between the wind power foundation and the wind turbine generator set; b23. After determining the load-bearing extreme value based on the dynamic changes, the calculation operation of the load-bearing extreme value is implemented.

5. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 4, characterized in that: The operation of analyzing the bearing capacity of the wind power foundation based on adjusting the wind speed at different slopes in B3 is as follows: b31. Set the wind input point N at different slopes and at a distance from the vertical center axis of the wind power foundation, and keep the input point N at the same distance from the vertical center axis of the wind power foundation; b32. Then, the wind speed is changed by synchronously adjusting the wind volume at different slopes, and the bearing limit of the wind power foundation is determined according to the dynamic changes between the wind power foundation and the wind turbine generator set; b33. After determining the load-bearing extreme value based on the dynamic changes, the calculation operation of the load-bearing extreme value is implemented.

6. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 5, characterized in that: In the operations b22 and b32, the bearing limit operation of the wind power foundation is determined based on the dynamic changes between the wind power foundation and the wind turbine generator set: C1. Realize the co-location acquisition operation of the wind power foundation and the overhead image of the wind turbine generator set, and then realize the analysis operation of the image data; C2. Establish the coordinate axis with the same position corner point of the image data as the origin, and establish the X axis with the origin toward one image boundary direction, and then establish the Y axis with the origin toward another image boundary direction perpendicular to the X axis, and then determine the top coordinate point before the test at the vertical center axis of the wind power foundation and the wind turbine group as P1 (x1, y1), and then mark the top coordinate point in the subsequent test as P2 (x2, y2); C3. Set the bending deviation between the wind turbine foundation and the wind turbine set to L, and then compare the distance between point P1 and point P2 with the bending deviation. If the distance exceeds the bending deviation L, it exceeds the bearing limit.

7. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 6, characterized in that: The formula for calculating the distance between point P1 and point P2 in C3 is: And J is the distance between point P1 and point P2, and when J ≥ L, the load-bearing limit between the wind power foundation and the wind turbine under wind force calculation is reached.

8. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 5, characterized in that: The calculation operation of the extreme value carried in b23 and b33 is: F=(1 / 2)×r×ρ×S×V 2 ; F is the wind load limit of the wind turbine foundation, r is the air resistance coefficient, ρ is the air density, S is the wind-receiving area of ​​the wind turbine foundation and wind turbine, and V represents the wind speed when in contact with the object; S=π×[(H1×R1)+(H2×R2)]; H1 is the height of the wind turbine foundation, R1 is the bottom diameter of the wind turbine foundation, H2 is the height of the wind turbine after removing the wind turbine foundation, and R2 is the bottom diameter of the wind turbine.

9. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 4, characterized in that: The wind speed analysis operation from the wind input point M to the wind power foundation in B2 is: D11. Calculate the speed reduction ratio of each wind test before the load limit is encountered; D12, and then calculate the wind speed V1 when it contacts the object at the load limit based on the average speed reduction ratio; Single speed reduction ratio calculation formula: kn = V un / V wn , kn represents the nth speed reduction ratio, V un represents the wind speed when it contacts the object for the nth time, V wn represents the input wind speed at the nth wind input point M; The average speed reduction ratio calculation formula is: k 平 =[(V u1 / V w1 )+(V u2 / V w2 )+…+(V un / V wn )] / n; The calculation formula of wind speed V when it contacts the object at the load limit is: V1 = V m ×k 平 , V m Represents the input wind speed at the wind input point M when it is at the load limit.

10. The system for calculating and analyzing the bearing capacity of a land wind power foundation affected by a wind environment according to claim 5, characterized in that: The wind speed analysis operation from the wind input point N to the wind power foundation in B3 is: D21, extract the slope at the load limit and mark it as α; D22, and then calculate the wind speed V2 when it contacts the object at the load limit according to the slope α; V2=(Sinα / 2)×(V g ) 2 ; And V g Represents the input wind speed at the wind input point N when it is at the load limit.

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