Scanning type laser radar horizontal wind speed calculation method, equipment, medium and program

Abstract

The invention relates to the field of wind power generation, and particularly provides a scanning type laser radar horizontal wind speed calculation method and device, a medium and a program.The scanning type laser radar horizontal wind speed calculation method comprises the following steps that a laser radar is arranged on a basic platform of a wind turbine generator set; setting parameters of the laser radar and the wind turbine generator are determined; based on the setting parameters of the laser radar and the wind turbine generator, the wake flow width of a wake flow area flow field is obtained; on the basis of the wake flow width, the horizontal wind speed of the flow field of the wake flow area and the critical distance with the horizontal wind direction kept unchanged are obtained; based on the setting parameters of the laser radar and the wind turbine generator and the critical distance, the horizontal wind speed of each position of the wake flow area flow field is obtained. The defect that the calculation accuracy of the horizontal wind speed is gradually reduced along with the increase of the scanning distance is overcome, and the calculation result of the horizontal wind speed can accurately reflect the flow field distribution condition of the wake flow area of the wind turbine generator.

Description

TECHNICAL FIELD The present application belongs to the field of wind power generation, and particularly relates to a scanning laser radar horizontal wind speed calculation method, device, medium and program. BACKGROUND

[0001] The wake effect is one of the important reasons affecting the power generation of a wind farm, and accurate measurement of the flow field at different positions of the wind farm is of great significance to the development and verification of a wake model.

[0002] Currently, the distribution of the flow field in the wake area of a wind turbine is reflected by the calculation result of the horizontal wind speed, specifically, a 3D scanning laser radar is placed on the base platform of the wind turbine, an elevation angle is set for the laser radar, the laser beam is emitted outward by changing the azimuth angle of the laser radar, thereby obtaining a sector-shaped measurement surface with a certain elevation angle centered on the laser radar, and then the radial wind speed directly measured can be processed according to the test principle of the laser radar, thereby obtaining the corresponding horizontal wind speed and horizontal wind direction. Figure 1 However, according to the above method, the current calculation method generally assumes that the horizontal wind speed and the horizontal wind direction of adjacent laser beams remain the same, and the least square method or other error minimization algorithm is used to calculate the horizontal wind speed and the horizontal wind direction of the corresponding area. Since the laser radar scans in the form of a sector surface, as the scanning distance increases, the distance between adjacent laser beams will also increase accordingly. Considering that the horizontal wind speed changes significantly at different positions in the wake area of the wind turbine, the calculation accuracy of the horizontal wind speed will gradually decrease with the increase of the scanning distance, thereby making it difficult to accurately reflect the distribution of the flow field in the wake area of the wind turbine at a long distance by the calculation result of the horizontal wind speed. SUMMARY

[0003] To solve the above problems, the present application provides a scanning laser radar horizontal wind speed calculation method, comprising the following steps: arranging a laser radar on the base platform of a wind turbine and determining the setting parameters of the laser radar and the wind turbine; obtaining the wake width of the flow field in the wake area based on the setting parameters of the laser radar and the wind turbine; obtaining the critical distance at which the horizontal wind speed and the horizontal wind direction of the flow field in the wake area remain unchanged based on the wake width; obtaining the horizontal wind speed at each position of the flow field in the wake area based on the setting parameters of the laser radar and the wind turbine and the critical distance.

[0004] Further, after obtaining the horizontal wind speed at each position of the flow field in the wake area, the following steps are provided: verify a velocity profile of a wake model of the wake flow field based on the horizontal wind speed of each location of the wake flow field.

[0005] Further, the laser radar is arranged on the foundation platform of the wind turbine generator, and the setting parameters of the laser radar and the wind turbine generator are determined, including the following steps: arranging the laser radar on the foundation platform of the wind turbine generator, and measuring the specification parameters of the wind turbine generator and the relative position between the laser beam emitted by the laser radar and the wind turbine generator; obtaining the pitch angle of the laser radar based on the specification parameters of the wind turbine generator and the relative position between the laser beam emitted by the laser radar and the wind turbine generator; The pitch angle is obtained by the following formula: ; wherein, is the pitch angle of the laser radar, is the vertical distance between the laser radar and the center of the hub of the wind turbine generator, is the horizontal distance between the laser beam emitted by the laser radar and the center of the hub of the wind turbine generator.

[0006] Further, the wake width of the wake flow field is obtained based on the setting parameters of the laser radar and the wind turbine generator, including the following steps: adjusting the azimuth angle of the laser radar to obtain the wake flow field of the wake flow field; obtaining the wake width based on the wake flow field and the setting parameters of the wind turbine generator; The wake width is obtained by the following formula: ; wherein, is the wake width, is the diameter of the impeller of the wind turbine generator, is the wake diffusion factor, the value is 0.05.

[0007] Further, the coverage range of the laser beam emitted by the laser radar is greater than the wake width; The wake width is limited by the following formula: ; wherein, is the scanning distance of the laser radar, , is the scanning range of the azimuth angle of the laser radar, is the proportional coefficient, the value is 1.5.

[0008] Further, the critical distance at which the horizontal wind speed and the horizontal wind direction of the wake flow field remain unchanged is obtained based on the wake width, including the following steps: A preset number of horizontal wind speeds is used to describe the variation law of the speed in the wake flow field; The range of the critical distance is obtained based on the wake width and the preset number of horizontal wind speeds; The critical distance is defined by the following formula: ; Wherein, The critical distance is, The preset number of horizontal wind speeds.

[0009] Further, the horizontal wind speed at each position of the wake flow field is obtained based on the setting parameters of the laser radar and the wind turbine and the critical distance, including the following steps: The radial wind speed at each position of the scanning range of the azimuth angle of the laser radar is measured and obtained; The number of laser beams within the critical distance is obtained based on the critical distance; The horizontal wind speed at each position is obtained by establishing an equation based on the number of laser beams within the critical distance, the pitch angle and the radial wind speed at each position; The horizontal wind speed and the horizontal wind direction at one position are obtained by the following formula: ; Wherein, The radial wind speed at one position is, The horizontal wind speed at one position is, The horizontal wind direction at one position is, The azimuth angle of the laser beam at one position is, The pitch angle is.

[0010] Further, the number of laser beams within the critical distance is obtained by the following formula: ; Wherein, The number of laser beams within the critical distance is, The interval between the azimuth angles of two adjacent laser beams is.

[0011] An electronic device based on the same concept, comprising at least one processor and at least one memory, the memory is in data connection with the processor; The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the scanning laser radar horizontal wind speed calculation method described in any one of the above embodiments.

[0012] A computer storage medium based on the same concept, the computer storage medium stores one or more instructions; The instructions, when executed by one or more processors, cause one or more of the processors to implement the scanning laser radar horizontal wind speed calculation method described in any one of the above embodiments.

[0013] A computer program product based on the same concept, the computer program product stores at least one computer program, the at least one computer program is loaded and executed by the processor, so that the processor can execute the scanning laser radar horizontal wind speed calculation method described in any one of the above embodiments.

[0014] Compared with the prior art, the scanning laser radar horizontal wind speed calculation method of the present application has at least the following advantages: by acquiring the horizontal wind speed and the critical distance of the horizontal wind direction of the wake flow field of the wind turbine, the number of laser beams within the corresponding critical distance can be quickly determined, and then by adjusting the number of adjacent laser beams, the horizontal wind speed and the horizontal wind direction at each position in the scanning fan-shaped surface of the laser radar can be more accurately obtained, thereby overcoming the defect that the calculation accuracy of the horizontal wind speed gradually decreases with the increase of the scanning distance, to ensure that the calculation result of the horizontal wind speed at a long distance can accurately reflect the distribution of the wake flow field of the wind turbine, and improve the accuracy of the development and verification of the wake model.

[0015] The electronic device of the present application has the same beneficial effects as the scanning laser radar horizontal wind speed calculation method described above, so it is not repeated here.

[0016] The computer storage medium of the present application has the same beneficial effects as the scanning laser radar horizontal wind speed calculation method described above, so it is not repeated here.

[0017] The computer program product of the present application has the same beneficial effects as the scanning laser radar horizontal wind speed calculation method described above, so it is not repeated here.

[0018] Other features and advantages of the present application will be set forth in the description that follows, and in part will be apparent from the description, or can be learned by practice of the application. The purposes and other advantages of the present application will be realized and attained by the structures described in the description and the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0020] Figure 1 A principle diagram of a horizontal wind speed calculation method in the prior art is shown; Figure 2 A flow chart of a scanning laser radar horizontal wind speed calculation method in the embodiment of the present application is shown; Figure 3 An installation schematic diagram of a laser radar and a wind turbine generator in the embodiment of the present application is shown; Figure 4 A scanning schematic diagram of a laser radar in the embodiment of the present application is shown; Figure 5 A schematic diagram of a wake zone flow field of a wind turbine generator in the embodiment of the present application is shown; Figure 6 A principle diagram of a scanning laser radar horizontal wind speed calculation method in the embodiment of the present application is shown. DETAILED DESCRIPTION

[0021] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the drawings in the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0022] REFERENCE Figure 2The embodiment of the present application provides a scanning laser radar horizontal wind speed calculation method, comprising the following steps: arranging a laser radar on a base platform of a wind turbine and determining setting parameters of the laser radar and the wind turbine; based on the setting parameters of the laser radar and the wind turbine, obtaining a wake width of a wake flow field. Based on the wake width, a critical distance at which the horizontal wind speed and the horizontal wind direction of the wake flow field remain unchanged is obtained. Based on the setting parameters of the laser radar and the wind turbine and the critical distance, the horizontal wind speed of each position of the wake flow field is obtained.

[0023] Specifically, by placing the 3D scanning laser radar on the base platform of the wind turbine for scanning, a scanning fan-shaped surface is formed, so that the specific setting parameters of the laser radar and the wind turbine can be directly obtained by measurement. By obtaining the multiple setting parameters of the laser radar and the multiple setting parameters of the wind turbine, the wake width of the wake flow field behind the impeller of the wind turbine can be calculated and obtained. By associating the critical distance at which the horizontal wind speed and the horizontal wind direction of the wake flow field of the wind turbine remain unchanged with the obtained wake width, the critical distance can be determined. Furthermore, by obtaining the critical distance at which the horizontal wind speed and the horizontal wind direction of the wake flow field of the wind turbine remain unchanged, the number of laser beams emitted by the laser radar within the corresponding critical distance is determined, so that the number of adjacent laser beams can be adjusted, and the radial wind speed at each position within the scanning fan-shaped surface of the laser radar obtained by direct measurement is combined, so that the horizontal wind speed and the horizontal wind direction at each position within the scanning fan-shaped surface of the laser radar can be more accurately calculated, thereby overcoming the defect that the calculation accuracy of the horizontal wind speed gradually decreases with the increase of the scanning distance of the laser radar, so as to ensure that the calculation result of the horizontal wind speed at a long distance can accurately reflect the distribution of the wake flow field of the wind turbine, and improve the accuracy of the development and verification of the wake model.

[0024] In some specific embodiments of the present application, after obtaining the horizontal wind speed at each position of the wake flow field, the following step is provided: based on the horizontal wind speed at each position of the wake flow field, the velocity curve of the wake model of the wake flow field is verified. Specifically, after obtaining the horizontal wind speed at each position of the wake flow field behind the impeller of the wind turbine, the velocity curve of the wake model of the wake flow field can be verified by the obtained horizontal wind speed at each position. Since the scanning laser radar horizontal wind speed calculation method overcomes the defect that the calculation accuracy of the horizontal wind speed gradually decreases with the increase of the scanning distance of the laser radar, the calculation result of the horizontal wind speed at a long distance can accurately reflect the distribution of the wake flow field of the wind turbine, thereby improving the accuracy of the development and verification of the wake model.

[0025] In some specific embodiments of the present application, reference is made to Figure 3 and Figure 4The laser radar is arranged on the base platform of the wind turbine, and the setting parameters of the laser radar and the wind turbine are determined, including the following steps: arranging the laser radar on the base platform of the wind turbine, and measuring the specification parameters of the wind turbine and the relative position of the laser beam emitted by the laser radar and the wind turbine. Based on the specification parameters of the wind turbine and the relative position of the laser beam emitted by the laser radar and the wind turbine, the pitch angle of the laser radar is obtained.

[0026] Specifically, the 3D scanning laser radar is placed on the base platform of the wind turbine. In order to form a fan-shaped measurement surface with a certain pitch angle for subsequent measurement of the distribution of the flow field in the wake area behind the impeller of the wind turbine, the pitch angle of the laser radar needs to be set so that the laser beam emitted by the laser radar extends along the pitch angle. Therefore, by directly measuring the specification parameters of the wind turbine and the relative position of the laser beam emitted by the laser radar and the wind turbine after the laser radar is placed, the pitch angle of the laser radar can be calculated and obtained.

[0027] Further, the pitch angle is obtained by the following formula: ; Wherein, is the pitch angle of the laser radar, is the vertical distance between the laser radar and the hub center of the wind turbine, is the horizontal distance between the laser beam emitted by the laser radar and the hub center of the wind turbine. The vertical distance between the laser radar and the hub center of the wind turbine and the horizontal distance between the laser beam emitted by the laser radar and the hub center of the wind turbine are both preset values, and the pitch angle determined thereby can be used for subsequent acquisition of the horizontal distance from the hub center of the wind turbine and the horizontal wind speed at the height of the hub center of the wind turbine, so that the calculation result of the horizontal wind speed at a long distance can accurately reflect the distribution of the flow field in the wake area of the wind turbine.

[0028] In some embodiments of the present application, with reference to Figure 4 and Figure 5 , based on the setting parameters of the laser radar and the wind turbine, the wake width of the flow field in the wake area is obtained, including the following steps: adjusting the azimuth angle of the laser radar to obtain the flow field in the wake area. Based on the flow field in the wake area and the setting parameters of the wind turbine, the wake width is obtained.

[0029] Specifically, after the pitch angle of the laser radar is set, the flow field in the wake area is measured and obtained by changing the azimuth angle of the laser radar scanning. By forming the flow field in the wake area, in combination with the setting parameters of the wind turbine, the corresponding wake width can be determined. So as to subsequently associate the critical distance with the wake width, so as to improve the accuracy of the calculation result of the horizontal wind speed at a long distance obtained accordingly.

[0030] Further, after passing through the wind wheel, the incoming flow wind will linearly increase in width due to momentum loss. At a horizontal distance of from the center of the hub of the wind turbine, the wake width is obtained by the following formula: ; wherein, is the wake width, is the impeller diameter of the wind turbine, is the wake diffusion factor, which is located in the environment of the offshore wind farm, and generally takes a value of 0.05.

[0031] In some embodiments of the present application, referring to Figure 4 , the coverage range of the laser beam emitted by the laser radar is greater than the wake width.

[0032] Specifically, since the wake flow field has a certain width, i.e., the wake width, in order to ensure that sufficient parameter data can be obtained during subsequent calculation, it is necessary to ensure that the coverage range of the wake flow field is greater than the wake width.

[0033] Therefore, the wake width is limited by the following formula: ; wherein, is the scanning distance of the laser radar, , is the scanning range of the azimuth angle of the laser radar, is a proportional coefficient, and generally takes a value of 1.5.

[0034] In some embodiments of the present application, referring to Figure 6 , based on the wake width, a critical distance at which the horizontal wind speed and the horizontal wind direction of the wake flow field remain unchanged is obtained, including the following steps: presetting a number of horizontal wind speeds describing the variation law of the speed in the wake flow field. Based on the wake width and the preset number of horizontal wind speeds, the range of the critical distance is obtained.

[0035] Specifically, since the laser radar scans in the form of a fan-shaped plane, as the scanning distance increases, the distance between adjacent points of two adjacent laser beams also increases accordingly, and the original assumption that the horizontal wind speed and direction in the preset range of the wake flow field remain unchanged can no longer continue to apply, therefore, the critical distance at which the horizontal wind speed and direction of the wake flow field remain unchanged needs to be linked to the wake width behind the impeller of the wind turbine. First, the number of horizontal wind speeds describing the variation law of the speed in the wake flow field needs to be preset, that is, the number of different horizontal wind speeds in the wake flow field, and then the critical distance is limited by the wake width and the preset number of horizontal wind speeds, so as to correspondingly calculate and obtain the critical distance at which the horizontal wind speed and direction of the wake flow field remain unchanged.

[0036] Further, the critical distance is limited by the following formula: ; Wherein, is the critical distance, is the preset number of horizontal wind speeds.

[0037] In some embodiments of the present application, referring to Figure 6 , based on the setting parameters of the laser radar and the wind turbine and the critical distance, the horizontal wind speed of each position of the wake flow field is obtained, including the following steps: measuring the radial wind speed of each position of the scanning range of the azimuth angle of the laser radar. Based on the critical distance, the number of laser beams within the critical distance is obtained. Based on the pitch angle and the radial wind speed of each position, an equation is established combining the number of laser beams within the critical distance to obtain the horizontal wind speed of each position.

[0038] Specifically, the radial wind speed of each position of the scanning range of the azimuth angle of the laser radar is directly measured and obtained. The number of laser beams within the critical distance is determined by the critical distance combined with the setting parameters of the laser radar, wherein the horizontal wind speed and direction between adjacent points of multiple laser beams within the critical distance can be considered to be the same. By establishing a relationship between the multiple radial wind speeds between the adjacent points of the multiple laser beams within the critical distance at one position and the horizontal wind speed and direction between the adjacent points of the multiple laser beams within the critical distance at the position, an equation is formed to solve, that is, the horizontal wind speed and direction at the position can be obtained accordingly.

[0039] The horizontal wind speed and direction at one position is obtained by the following formula: ; Wherein, is the radial wind speed at one position, is the horizontal wind speed at one position, azimuth angle of the laser beam at one of the positions, azimuth angle of the laser beam at one of the positions, elevation angle.

[0040] It should be noted that, There are two unknown quantities, the horizontal wind speed and the horizontal wind direction, in this formula, so multiple radial wind speeds between adjacent points of multiple laser beams within the critical distance need to be used to form equations with the horizontal wind speed and the horizontal wind direction to solve them. At this time, it is necessary to assume that the horizontal wind speed and the horizontal wind direction between adjacent points of multiple laser beams within the critical distance are the same.

[0041] In some embodiments of the present application, with reference to Figure 6 , the number of laser beams within the critical distance is obtained by the following formula: ; wherein, the number of laser beams within the critical distance, the interval between the azimuth angles of the adjacent two laser beams. By This formula can calculate the number of laser beams within the critical distance at different positions.

[0042] Specifically, by obtaining the critical distance of the horizontal wind speed and the horizontal wind direction of the wake flow field of the wind turbine generator, the number of laser beams emitted by the laser radar within the corresponding critical distance is determined, so that the number of adjacent laser beams can be adjusted, and the horizontal wind speed and the horizontal wind direction at each position within the scanning sector of the laser radar can be more accurately calculated by combining the directly measured radial wind speed at each position within the scanning sector of the laser radar. The calculation accuracy of the horizontal wind speed gradually decreases with the increase of the scanning distance of the laser radar, so as to ensure that the calculation result of the horizontal wind speed at a long distance can accurately reflect the distribution of the wake flow field of the wind turbine generator, and improve the accuracy of the development and verification of the wake model.

[0043] The embodiment of the present application also provides an electronic device, comprising: at least one processor and at least one memory, the memory is in data connection with the processor. The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the scanning laser radar horizontal wind speed calculation method described in any one of the above embodiments.

[0044] The embodiment of the present application also provides a computer storage medium, which stores one or more instructions. The instructions, when executed by one or more processors, cause the one or more processors to implement the scanning laser radar horizontal wind speed calculation method described in any one of the above embodiments.

[0045] The embodiment of the present application also provides a computer program product, at least one computer program is stored in the computer program product, the at least one computer program is loaded and executed by a processor, so that the processor can execute the scanning laser radar horizontal wind speed calculation method described in any one of the foregoing embodiments.

[0046] Although the present application is described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A scanning laser radar horizontal wind speed calculation method, characterized by, The method comprises the following steps: arranging a laser radar on a foundation platform of a wind turbine generator and determining setting parameters of the laser radar and the wind turbine generator; acquiring a wake width of a wake flow field based on the setting parameters of the laser radar and the wind turbine generator; acquiring a critical distance at which a horizontal wind speed and a horizontal wind direction of the wake flow field remain unchanged based on the wake width; acquiring a horizontal wind speed of each position of the wake flow field based on the setting parameters of the laser radar and the wind turbine generator and the critical distance.

2. The scanning lidar horizontal wind speed calculation method of claim 1, wherein, After the horizontal wind speed of each position of the wake flow field is acquired, the following step is arranged: verifying a velocity curve of a wake model of the wake flow field based on the horizontal wind speed of each position of the wake flow field.

3. The scanning lidar horizontal wind speed calculation method of claim 1, wherein, The step of arranging the laser radar on the foundation platform of the wind turbine generator and determining the setting parameters of the laser radar and the wind turbine generator comprises the following steps: arranging the laser radar on the foundation platform of the wind turbine generator and measuring specification parameters of the wind turbine generator and a relative position of a laser beam emitted by the laser radar and the wind turbine generator; acquiring a pitch angle of the laser radar based on the specification parameters of the wind turbine generator and the relative position of the laser beam emitted by the laser radar and the wind turbine generator; the pitch angle is acquired through the following formula: ； wherein, is an elevation angle of the lidar, is a vertical distance of the lidar from a hub center of the wind turbine, is a horizontal distance of a laser beam emitted by the lidar from the hub center of the wind turbine.

4. The scanning lidar horizontal wind speed calculation method of claim 1, wherein, The step of acquiring the wake width of the wake flow field based on the setting parameters of the laser radar and the wind turbine generator comprises the following steps: adjusting an azimuth angle of the laser radar to acquire the wake flow field; acquiring the wake width based on the wake flow field and the setting parameters of the wind turbine generator; the wake width is acquired through the following formula: ； wherein, is the wake width, is the rotor diameter of the wind turbine, is the wake diffusion factor, is 0.

05.

5. The scanning lidar horizontal wind speed calculation method of claim 4, wherein, a coverage range of the laser beam emitted by the laser radar is greater than the wake width; the wake width is limited through the following formula: ； wherein, is a scanning distance of the laser radar, , is a scanning range of an azimuth angle of the laser radar, is a proportional coefficient, is 1.

5.

6. The scanning lidar horizontal wind speed calculation method of claim 1, wherein, The step of acquiring the critical distance at which the horizontal wind speed and the horizontal wind direction of the wake flow field remain unchanged based on the wake width comprises the following steps: presetting a number of horizontal wind speeds describing a variation law of a velocity in the wake flow field; acquiring a range of the critical distance based on the wake width and the preset number of horizontal wind speeds; the critical distance is limited through the following formula: ； wherein, is the critical distance, is the preset number of the horizontal wind speed.

7. The scanning lidar horizontal wind speed calculation method of claim 3, wherein, The step of acquiring the horizontal wind speed of each position of the wake flow field based on the setting parameters of the laser radar and the wind turbine generator and the critical distance comprises the following steps: measuring a radial wind speed of each position of a scanning range of the azimuth angle of the laser radar; acquiring a number of laser beams within the critical distance based on the critical distance; establishing an equation based on the pitch angle and the radial wind speed of each position in combination with the number of laser beams within the critical distance to acquire the horizontal wind speed of each position; the horizontal wind speed and the horizontal wind direction of one position are acquired through the following formula: ； wherein is the radial wind speed at one of the locations, is the horizontal wind speed at one of the locations, is the horizontal wind direction at one of the locations, is the azimuth angle of the laser beam at one of the locations, is the pitch angle.

8. The scanning lidar horizontal wind speed calculation method of claim 3, wherein, the number of laser beams within the critical distance is acquired through the following formula: ； wherein is the number of laser beams within the critical distance, is the interval between the azimuth angles of two adjacent laser beams.

9. An electronic device, comprising: comprise: at least one processor and at least one memory, the memory being in data connection with the processor; The memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor, so that the at least one processor can execute the scanning laser radar horizontal wind speed calculation method in any one of claims 1 to 8.

10. A computer storage medium, characterized in that, The computer storage medium stores one or more instructions; The instructions, when executed by one or more processors, cause the one or more processors to implement the scanning laser radar horizontal wind speed calculation method in any one of claims 1 to 8.

11. A computer program product, characterised in that, The computer program product stores at least one computer program, and the at least one computer program is loaded and executed by the processor, so that the processor can execute the scanning laser radar horizontal wind speed calculation method in any one of claims 1 to 8.

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