Fan load simulation method, system, equipment, medium and program product

Abstract

The invention relates to the technical field of fan simulation, and particularly discloses a fan load simulation method, system and device, a medium and a program product, and the fan load simulation method comprises the steps: obtaining a wind wheel surface reference wind condition of a target fan device; based on the wind wheel surface reference wind condition of the target fan equipment, determining the wind wheel surface construction wind condition of the target fan equipment under the specified wind condition; and determining the simulation load condition of the target fan equipment under the specified wind condition based on the wind wheel surface construction wind condition of the target fan equipment under the specified wind condition. According to the technical scheme provided by the invention, in the fan load simulation process, the wind wheel surface reference wind condition is obtained through three-dimensional calculation fluid mechanics simulation, and the wind wheel surface wind condition of the fan equipment under the specified wind condition is accurately constructed in combination with the inlet wind field file; and the accuracy of the load simulation condition is improved under the condition that a large amount of calculation cost does not need to be consumed.

Description

Technical Field

[0001] This disclosure relates to the field of wind turbine simulation technology, and in particular to a wind turbine load simulation method, system, equipment, medium and program product. Background Technology

[0002] In existing technologies, wind turbine load simulation typically employs a method of collaboratively constructing the wind conditions at the turbine hub center point using wind speed and inflow wind field files to model the wind conditions on the rotor surface of the target turbine. However, in real-world applications such as wind farms with complex terrain or where wake interference exists between turbines, the wind conditions constructed using this method differ significantly from the actual wind conditions experienced by the wind turbine. This leads to substantial deviations in subsequent turbine load simulations. These deviations may cause failure risks to some critical components of the wind turbine and may also degrade the overall power generation performance of the turbine, severely impacting its safe and normal operation. Summary of the Invention

[0003] The purpose of this disclosure is to provide a wind turbine load simulation method, system, device, medium, and program product that can accurately construct the wind turbine rotor surface wind conditions under specified wind conditions by combining the wind turbine rotor surface reference wind conditions obtained from three-dimensional computational fluid dynamics simulation with the inflow wind field file during the wind turbine load simulation process, thereby improving the accuracy of the load simulation without incurring a large amount of computational costs.

[0004] To address the aforementioned technical problems, the first aspect of this disclosure provides a wind turbine load simulation method, which specifically includes the following steps: obtaining a reference wind condition for the rotor surface of a target wind turbine, the reference wind condition including the average wind speed distribution within the rotor surface of the target wind turbine and the wind speed time sequence at at least one reference point within the rotor surface of the target wind turbine; determining the rotor surface structural wind condition of the target wind turbine under a specified wind condition based on the reference wind condition of the rotor surface of the target wind turbine; and determining the simulation load of the target wind turbine under the specified wind condition based on the rotor surface structural wind condition of the target wind turbine; wherein, based on the reference wind condition of the rotor surface of the target wind turbine under the specified wind condition, the simulation load of the target wind turbine under the specified wind condition is determined; wherein, based on the reference wind condition of the rotor surface of the target wind turbine under the specified wind condition, the simulation load of the target wind turbine under the specified wind condition is determined; The wind turbine reference wind condition is used to determine the wind turbine structure wind condition under specified wind conditions. This includes: acquiring the wind speed and turbulence at the hub center of the target wind turbine under specified wind conditions; acquiring the wind speed fluctuation information of the wind turbine's rotor surface under specified wind conditions based on a preset inflow wind field file; updating the wind turbine reference wind condition based on the wind speed fluctuation information of the target wind turbine's rotor surface under specified wind conditions; and performing scaling processing on the updated wind turbine reference wind condition using the wind speed and turbulence at the hub center under specified wind conditions as scaling targets to obtain the wind turbine structure wind condition under specified wind conditions.

[0005] The second aspect of this disclosure provides a wind turbine load simulation system, which specifically includes: a rotor surface reference wind condition determination unit, used to acquire the rotor surface reference wind condition of the target wind turbine equipment; a rotor surface structure wind condition determination unit, used to determine the rotor surface structure wind condition of the target wind turbine equipment under a specified wind condition based on the rotor surface reference wind condition of the target wind turbine equipment; and a load simulation unit, used to determine the simulated load of the target wind turbine equipment under the specified wind condition based on the rotor surface structure wind condition of the target wind turbine equipment under the specified wind condition; wherein the rotor surface structure wind condition determination unit... The unit is used to acquire the wind speed and turbulence at the hub center of the target wind turbine under specified wind conditions; acquire the wind speed fluctuation information of the rotor surface of the target wind turbine under specified wind conditions based on a preset inflow wind field file; update the reference wind conditions of the rotor surface based on the wind speed fluctuation information of the rotor surface of the target wind turbine under specified wind conditions; and perform scaling processing on the updated reference wind conditions of the rotor surface using the wind speed and turbulence at the hub center under specified wind conditions as scaling targets to obtain the wind conditions of the rotor surface structure under specified wind conditions.

[0006] A third aspect of this disclosure provides an electronic device, which may include: at least one processor; and a memory communicatively connected to the at least one processor; wherein the processor stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the wind turbine load simulation method provided in the first aspect.

[0007] A fourth aspect of this disclosure provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the wind turbine load simulation method provided in the first aspect.

[0008] The fifth aspect of this disclosure provides a computer program product, which may specifically include a computer program that, when executed by a processor, implements the wind turbine load simulation method provided in the first aspect.

[0009] The technical solution provided in this disclosure enables the precise construction of the wind turbine rotor surface wind conditions under specified wind conditions during wind turbine load simulation, based on a pre-determined reference wind condition for the rotor surface. This improves the accuracy of the wind turbine load simulation. Specifically, the reference wind condition for the rotor surface obtained through three-dimensional computational fluid dynamics simulation provides the spatial distribution characteristics of the wind conditions. Combined with wind speed fluctuation information under specified wind conditions, the wind turbine rotor surface wind conditions can be determined based on scaling. This reduces computational load while reflecting the actual wind conditions experienced by the wind turbine under specified conditions. Applying this wind turbine rotor surface wind conditions to the load simulation of the wind turbine yields accurate load assessment results. Attached Figure Description

[0010] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0011] Figure 1 This is a flowchart illustrating a wind turbine load simulation method according to an embodiment of this disclosure; Figure 2 This is a schematic flowchart illustrating a process for determining the reference wind conditions on the rotor surface of a target wind turbine according to an embodiment of this disclosure; Figure 3 This is a schematic diagram of the average wind speed distribution within the rotor plane according to an embodiment of the present disclosure; Figure 4 This is a schematic diagram of the wind speed timing at a preset reference point according to an embodiment of this disclosure; Figure 5 This is a flowchart illustrating a process for determining the wind conditions of a target wind turbine under specified wind conditions, according to an embodiment of this disclosure. Figure 6 This is a schematic diagram of the average wind speed distribution in the wind turbine plane after scaling processing, according to an embodiment of this disclosure; Figure 7 This is a schematic diagram of the wind speed time sequence at a preset reference point after scaling processing according to the embodiments of this disclosure; Figure 8 This is a schematic diagram of another process for determining the wind conditions of the rotor surface structure of a target wind turbine under specified wind conditions, according to an embodiment of this disclosure. Figure 9 This is a schematic diagram illustrating the attenuation of wind speed on the rotor surface caused by an interfering wind turbine device to a target wind turbine device, according to an embodiment of this disclosure. Figure 10 This is a schematic diagram showing the distribution of average wind speed within the wind turbine surface corresponding to wind conditions according to an embodiment of the present disclosure. Figure 11 This is a schematic diagram of the structure of a wind turbine load simulation system provided according to an embodiment of the present disclosure; Figure 12 This is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present disclosure. Detailed Implementation

[0012] Based on the relevant descriptions in the background art, existing technologies for wind turbine load simulation typically use the wind speed at the center point of the turbine hub and inflow wind field files to simulate the wind conditions on the turbine rotor surface. The wind conditions on the rotor surface obtained from these simulations often differ significantly from the wind conditions actually experienced by the wind turbine in complex terrain environments, easily affecting the accuracy of the wind turbine load simulation. To address the above technical problems, some embodiments of this disclosure provide a wind turbine load simulation method, system, device, medium, and program product. These products can accurately construct the wind turbine rotor surface wind conditions under specified wind conditions by combining the reference wind conditions obtained from three-dimensional computational fluid dynamics simulation with the inflow wind field files, thereby improving the accuracy of the load simulation without incurring significant computational costs.

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the various embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details are provided in the embodiments of this disclosure to facilitate a better understanding of the disclosure. However, the technical solutions claimed in this disclosure can be implemented even without these technical details and various variations and modifications based on the following embodiments. The division of the following embodiments is for ease of description and should not constitute any limitation on the specific implementation of this disclosure. The various embodiments can be combined with and referenced by each other without contradiction.

[0014] In some embodiments of this disclosure, Figure 1 A flowchart illustrating a wind turbine load simulation method is shown, as follows: Figure 1 As shown, process 100 may specifically include the following steps: Step 110: Obtain the reference wind conditions for the rotor surface of the target wind turbine. In some embodiments, the environmental information of the target wind turbine may include the wind field topography of the wind field area where the target wind turbine is located, the arrangement of wind turbines in the wind field area, etc., which are not limited here. By obtaining the environmental information of the target wind turbine, the wind field environment that the target wind turbine may be affected by and the interference from other wind turbines in the wind field can be comprehensively simulated in the subsequent process of obtaining the reference wind conditions for the rotor surface, thereby improving the accuracy of the reference wind conditions for the rotor surface, which is not limited here.

[0015] In some embodiments, the reference wind conditions of the target wind turbine's rotor surface can reflect the actual wind conditions experienced by the wind turbine under specific environmental conditions, providing a more accurate reference for obtaining the wind conditions for subsequent rotor surface construction. Specifically, in some embodiments, the reference wind conditions of the target wind turbine's rotor surface can be obtained through three-dimensional computational fluid dynamics simulations in different sectors, without limitation. It is understood that the reference wind conditions obtained through three-dimensional computational fluid dynamics simulations, compared to the existing scheme of constructing rotor surface wind conditions using the wind conditions at the hub center point, better reflect the actual wind conditions experienced by the wind turbine, thus providing a data foundation for improving the accuracy of subsequent wind turbine load simulations. The method for determining the reference wind conditions of the rotor surface will be specifically explained later in conjunction with embodiments, and will not be elaborated upon here.

[0016] Step 120: Based on the reference wind conditions of the wind turbine rotor surface of the target wind turbine, determine the wind turbine rotor surface structure wind conditions under specified wind conditions. It is understandable that simulating the wind conditions of the wind turbine rotor surface requires significant computational resources. If the wind turbine rotor surface wind conditions are directly simulated based on specified wind conditions, to ensure accuracy, simulation calculations need to be performed for different incoming wind conditions (such as wind speed, turbulence, wind shear, inflow angle, etc.) when the specified wind conditions change, which will consume a large amount of computational resources. To overcome the above problems, the technical solution provided in this disclosure utilizes the spatial distribution characteristics of the reference wind conditions of the wind turbine rotor surface obtained from actual 3D simulation, combined with the specified wind conditions, to determine the wind turbine rotor surface structure wind conditions. This significantly reduces the computational load while ensuring that the determined wind turbine rotor surface structure wind conditions reflect the actual wind conditions experienced by the wind turbine. The method for determining the wind turbine rotor surface structure wind conditions will be specifically explained later in conjunction with embodiments, and will not be elaborated here.

[0017] Step 130: Based on the wind conditions of the rotor surface structure of the target wind turbine under specified wind conditions, determine the simulated load of the target wind turbine under specified wind conditions. It is understood that the wind conditions of the rotor surface structure obtained through the aforementioned steps can accurately simulate and estimate data such as the turbine load and power generation of the target wind turbine. Through the above process 100, the technical solution provided by this disclosure can improve the accuracy of wind turbine load simulation without incurring significant computational costs; the specific implementation of each step in the above process 100 will be further explained below with reference to specific embodiments.

[0018] In some embodiments, specific Figure 2 A flowchart illustrating a process for determining reference wind conditions on the rotor surface of a target wind turbine is shown, such as... Figure 2 As shown, process 200 may specifically include the following steps: Step 210: Based on the environmental information of the target wind turbine, obtain the three-dimensional computational fluid dynamics (CFD) simulation results of the target wind turbine in different sectors. In some embodiments, the environmental information of the target wind turbine may specifically include the terrain environment in which the target wind turbine is located, and the arrangement information of other wind turbines in that terrain environment, which is not limited here. In some embodiments, the three-dimensional computational fluid dynamics (CFD) simulation can reflect the average wind speed distribution at various locations within the rotor surface, the pulsation characteristics at different locations, and the spatial non-uniformity caused by complex flow, which is not limited here. In some embodiments, specifically, in the process of obtaining the three-dimensional computational fluid dynamics simulation results, commonly used calculation methods such as RANS (Reynolds-Averaged Navier-Stokes), DES (Detached Eddy Simulation), and LES (Large Eddy Simulation) can be selected, which is not limited here.

[0019] Step 220: Set the incoming flow direction of the target wind turbine to be perpendicular to the rotor surface of the target wind turbine. Based on the results of the three-dimensional computational fluid dynamics simulation, determine the reference wind conditions of the rotor surface of the target wind turbine. In some embodiments, the assumption that the rotor surface is perpendicular to the incoming flow direction can be used as a constraint condition to extract the wind speed distribution data and wind condition time series within the rotor surface from the three-dimensional computational fluid dynamics simulation results; this is not limited here. In some embodiments, specifically, the reference wind conditions of the rotor surface of the target wind turbine may include the average wind speed distribution within the rotor surface of the target wind turbine, and the wind speed time series at at least one reference point within the rotor surface of the target wind turbine. In some embodiments, for example, Figure 3 A schematic diagram showing the average wind speed distribution within the rotor plane is provided, as follows: Figure 3 As shown, the rectangular area 310 on the left represents the average wind speed distribution on the plane containing the wind turbine surface, with both the horizontal and vertical coordinates in meters. The vertical arrow 320 on the right represents the color distribution corresponding to different wind speeds, with the unit being meters per second. It can be understood that the average wind speed distribution within the wind turbine surface reflects the actual wind speed distribution of the target wind turbine under specific environmental wind conditions, obtained through three-dimensional computational fluid dynamics simulation, providing a reference basis for constructing wind turbine surface wind conditions under subsequent specified wind conditions. Since the subsequent specified wind conditions are uncertain, the specific environmental wind conditions corresponding to the wind turbine surface reference wind conditions are not limited in the actual implementation. In some embodiments, for example... Figure 4A schematic diagram of the wind speed time series at a preset reference point is shown. The horizontal axis represents the time change, in seconds; the vertical axis represents the wind speed at the reference point, in meters per second; curve 410 represents the wind speed time series change at the first reference point; curve 420 represents the wind speed time series change at the second reference point; and curve 430 represents the wind speed time series change at the third reference point. The wind speed time series at these reference points can provide reference point constraints in the subsequent determination of the wind conditions of the wind turbine surface structure, so that the wind conditions of the wind turbine surface structure can be consistent with the spatial distribution characteristics reflected by the wind turbine surface reference conditions. Any number of reference points can be selected according to the actual needs of the scenario, and no limitation is made here.

[0020] In some embodiments of this disclosure, further, Figure 5 A flowchart illustrating a process for determining the wind conditions of a target wind turbine's rotor surface structure under specified wind conditions is shown, such as... Figure 5 As shown, process 500 may specifically include the following steps: Step 510: Obtain the wind speed and turbulence at the hub center of the target wind turbine under specified wind conditions. In some embodiments, the wind conditions actually experienced by the target wind turbine under specified wind conditions can be obtained based on the wind frequency turbulence matrix information at the target wind turbine, which may specifically include the wind speed and turbulence at the hub center of the target wind turbine. The parameters determined based on the specified wind conditions can be used as the target standard for scaling in subsequent scaling processes, or other suitable parameter information can be selected according to actual application needs, which is not limited here.

[0021] Step 520: Based on the preset inflow wind field file, obtain the wind speed fluctuation information of the rotor surface of the target wind turbine under specified wind conditions. In some embodiments, the inflow wind field file (i.e., the IEC wind file) is a wind field file from the IEC (International Electrotechnical Commission) standards organization, used for wind turbine load calculation, simulation analysis, and design verification. It mainly includes wind speed information at various locations on the rotor surface over a certain period of time, such as average wind speed, turbulent fluctuations, axial / lateral / vertical wind speed components, etc., which are not limited here. In some embodiments, the wind speed fluctuation information of the rotor surface of the target wind turbine under specified wind conditions can be obtained based on the following mathematical expression: ; in, The coordinates of the plane containing the rotor surface of the target wind turbine equipment; For time; The wind speed at the hub center of the target wind turbine under specified wind conditions; The turbulence at the hub center of the target wind turbine under specified wind conditions; The dimensionless or standardized wind speed sequence in the preset inflow wind field file; This refers to the temporal components of the wind speed pulsation on the rotor surface of a target wind turbine under specified wind conditions (i.e., wind speed pulsation information on the rotor surface). Users can also use other feasible technical solutions to acquire wind speed pulsation information on the rotor surface, which are not limited here. In some embodiments, further considering that the low-frequency components in the wind speed pulsation information usually correspond to large-scale structural features in the turbulent flow field, reflecting the wind speed fluctuation phenomenon caused by external factors such as terrain undulations in the wind flow field calculation; if this feature has been fully modeled and simulated in the three-dimensional computational fluid dynamics (CFD) simulation model, in the process of acquiring wind speed pulsation information on the rotor surface, signal filtering (such as high-pass filtering) can be optionally used to remove the low-frequency components. It should be noted that the above signal processing methods are only illustrative examples, and the preprocessing methods for wind speed pulsation information in this disclosure are not specifically limited; those skilled in the art can flexibly choose whether to retain or filter out low-frequency components, or use other equivalent signal processing methods, according to the actual simulation accuracy requirements, computational efficiency and specific application scenarios, and none of these should be construed as limiting the scope of protection of this disclosure.

[0022] Step 530: Update the wind turbine reference wind conditions based on the wind speed fluctuation information of the target wind turbine under specified wind conditions. In some embodiments, during the process of updating the wind turbine reference wind conditions, the wind speed fluctuation information of the wind turbine reference wind conditions can be determined first based on the wind turbine reference wind conditions of the target wind turbine. That is, according to the wind turbine reference wind conditions, the wind speed time series data within the wind turbine surface is decomposed into the wind turbine reference wind speed distribution (i.e., the time-averaged wind speed distribution of the wind turbine surface) and the wind turbine reference wind speed fluctuation information. Then, the wind speed fluctuation information of the target wind turbine under specified wind conditions is superimposed with the wind turbine reference wind speed fluctuation information to update the wind turbine reference wind speed fluctuation information. In some embodiments, the updated wind turbine reference wind conditions can be obtained based on the following mathematical expression: ; in, The coordinates of the plane containing the rotor surface of the target wind turbine equipment; For time; Reference wind speed distribution on the rotor surface of the target wind turbine equipment; Reference wind speed fluctuation information for the rotor surface of the target wind turbine equipment; This provides information on the wind speed fluctuations on the rotor surface of the target wind turbine under specified wind conditions. This is the updated reference wind condition for the wind turbine surface; users can also use other feasible technical solutions to update the reference wind condition for the wind turbine surface, which are not limited here.

[0023] Step 540: Using the wind speed and turbulence at the hub center under the specified wind conditions as scaling targets, perform scaling processing on the updated wind turbine reference wind conditions to obtain the wind turbine structure wind conditions under the specified wind conditions. It can be understood that by aligning the wind speed at the hub center of the updated wind turbine reference wind conditions with the wind speed at the hub center of the target wind turbine obtained in Step 510 under the specified wind conditions, and aligning the turbulence at the hub center of the updated wind turbine reference wind conditions with the turbulence at the hub center of the target wind turbine obtained in Step 510 under the specified wind conditions, the obtained wind turbine structure wind conditions can match the specified wind conditions while possessing spatial distribution and pulsating characteristics. No further limitations are imposed here.

[0024] In some embodiments, further, during the scaling process of the updated wind turbine reference wind conditions, a first reference ratio of the wind speed at at least one reference point on the wind turbine surface to the wind speed at the hub center, and a second reference ratio of the turbulence at at least one reference point to the turbulence at the hub center can be obtained based on the wind turbine reference wind conditions of the target wind turbine. The wind turbine reference wind conditions include wind speed information and turbulence information at the reference points, which are not limited here. Then, during the scaling process, the ratio of the wind speed at the reference points to the wind speed at the hub center is kept consistent with the first reference ratio, and the ratio of the turbulence at the reference points to the turbulence at the hub center is kept consistent with the second reference ratio. Understandably, during the scaling process, in addition to ensuring that the wind speed and turbulence at the hub center match the specified wind conditions, it is also necessary to ensure that the ratios of wind speed and turbulence at non-hub center points within the wind turbine surface to those at the hub center point are the same as the ratios in the reference wind conditions for the wind turbine surface, so as to ensure that the spatial distribution of the wind turbine surface is not destroyed. This is not limited here.

[0025] In some embodiments, exemplary, Figure 6 This diagram illustrates the average wind speed distribution within the wind turbine surface after scaling. The rectangular area 610 on the left represents the average wind speed distribution in the plane containing the wind turbine surface after scaling, with both the horizontal and vertical coordinates in meters. The vertical arrow 620 on the right represents the color distribution corresponding to different wind speeds, with the unit being meters per second. (See diagram for reference.) Figure 6 And the embodiments provided above Figure 3 It can be seen that the average wind speed distribution within the wind turbine surface after scaling changes compared to the reference wind conditions on the wind turbine surface. This change is determined by the influence of the specified wind conditions. In some embodiments, exemplarily, Figure 7This diagram illustrates the temporal variation of wind speed at a preset reference point after scaling. The horizontal axis represents time variation in seconds; the vertical axis represents wind speed at the reference point in meters per second. Curve 710 represents the temporal variation of wind speed at the first reference point; curve 720 represents the temporal variation of wind speed at the second reference point; and curve 730 represents the temporal variation of wind speed at the third reference point. Correspondingly, [the diagram is used for comparison]. Figure 7 And the embodiments provided above Figure 4 It can be seen that the wind speed time series at the reference point after scaling has changed compared to the wind speed time series at the reference point corresponding to the wind turbine surface reference wind condition. The above changes are determined by the influence of the specified wind condition, which will not be limited here.

[0026] Based on the foregoing descriptions of the embodiments, the technical solutions provided in this disclosure can construct wind conditions for the rotor surface structure that conform to actual conditions. However, the solutions provided in the foregoing embodiments only consider the isolated simulation of the target wind turbine equipment. In actual wind farm application scenarios, the target wind turbine equipment may also be affected by wake interference from other upstream wind turbine equipment, resulting in a certain difference between the determined wind conditions for the rotor surface structure and the actual wind conditions for the rotor surface. To overcome the above problems, in some embodiments of this disclosure, further... Figure 8 A schematic diagram illustrating another process for determining the wind conditions of a target wind turbine's rotor surface configuration under specified wind conditions is shown, such as... Figure 8 As shown, process 800 may specifically include the following steps: Step 810: In the case of interfering wind turbines in the target wind turbine equipment, determine the wake interference information of the interfering wind turbines. In some embodiments, the interfering wind turbines may be wind turbines located upstream of the target wind turbine equipment that cause wake interference to the target wind turbine equipment, which is not limited here. In some embodiments, in the process of determining the wake interference information of the interfering wind turbines, the inflow wind conditions of the interfering wind turbines may be used as the inflow wind conditions of the target wind turbine equipment based on a specified wind condition; further, based on the wake interference model and the inflow wind conditions of the target wind turbine equipment, the attenuation information of the wind speed at the rotor surface caused by the interfering wind turbines to the target wind turbine equipment is determined, and the attenuation information of the wind speed at the rotor surface is used as the wake interference information. In some embodiments, the inflow wind conditions may specifically be the wind conditions felt by the upstream interfering wind turbine equipment, and the attenuation of the wind speed at the rotor surface caused by the upstream interfering wind turbine equipment to the target wind turbine equipment is calculated by combining a wake model (e.g., Jensen model, Gauss model, DWM model, etc.). In some embodiments, for example, Figure 9 A schematic diagram illustrating the attenuation of wind speed at the rotor surface caused by interfering wind turbine equipment on a target wind turbine equipment is shown, such as... Figure 9As shown, the rectangular area 910 on the left is used to characterize the average wind speed attenuation of the plane where the wind turbine surface is located after scaling, and the units of the horizontal and vertical coordinates are meters; the vertical arrow 920 on the right is used to characterize the color distribution corresponding to different wind speed attenuation ratios, and the unit is percentage; users can also adopt other feasible technical solutions to obtain and characterize wake interference information according to actual application scenarios, which are not limited here.

[0027] Step 820: After scaling the updated rotor surface reference wind conditions, correct the scaled rotor surface reference wind conditions based on wake interference information to obtain the rotor surface structure wind conditions of the target wind turbine under specified wind conditions. In some embodiments, specifically, the wind speed attenuation caused by the wind turbine wake of the interfering wind turbine obtained in step 810 can be subtracted from the scaled rotor surface reference wind conditions, and the obtained rotor surface wind conditions can be used as the final accurate rotor surface structure wind conditions. In some embodiments, for example, Figure 10 This diagram illustrates the average wind speed distribution within a wind turbine surface corresponding to a specific wind turbine configuration. The rectangular area 1010 on the left represents the average wind speed distribution on the plane containing the wind turbine surface, with both horizontal and vertical coordinates in meters. The vertical arrow 1020 on the right represents the color distribution corresponding to different wind speeds, with units in meters per second. (See diagram for reference.) Figure 10 And the embodiments provided above Figure 6 It can be seen that the wind turbine surface structure wind condition after wake interference information correction has a relatively significant reduction in the average wind speed distribution in the 1011 region. The technical solution provided in this disclosure can further correct the wind turbine surface structure wind condition when there is upstream interference from other wind turbine equipment, so that the obtained wind turbine surface structure wind condition can better match the wind condition actually felt by the wind turbine equipment. No limitation is made here.

[0028] In some embodiments of this disclosure, the wind conditions of the wind turbine surface structure obtained in the aforementioned embodiments can be post-processed by normalization and other methods, and the wind conditions of the wind turbine surface structure can be output in a predetermined file format such as IEC wind document, so that the output results can be directly used to obtain the simulated load of the target wind turbine equipment under the specified wind conditions. This is not limited here.

[0029] In some embodiments of this disclosure, Figure 11 A schematic diagram of a wind turbine load simulation system is shown, as follows: Figure 11 As shown, the wind turbine load simulation system 1100 may specifically include a wind turbine surface reference wind condition determination unit 1110, a wind turbine surface structure wind condition determination unit 1120, and a load simulation unit 1130.

[0030] In some embodiments, such as Figure 11 The wind turbine reference wind condition determination unit 1110 shown can be used to determine the wind turbine reference wind condition of the target wind turbine based on the environmental information of the target wind turbine. The wind turbine structure wind condition determination unit 1120 can be used to determine the wind turbine structure wind condition of the target wind turbine under a specified wind condition based on the wind turbine reference wind condition. Specifically, the wind turbine structure wind condition determination unit 1120 can be used to obtain the wind speed and turbulence at the hub center of the target wind turbine under the specified wind condition; and obtain the specified wind turbine structure wind condition based on a preset inflow wind field file. The system obtains wind speed fluctuation information on the rotor surface of the target wind turbine under specified wind conditions; updates the reference wind conditions on the rotor surface based on this information; and uses the wind speed and turbulence at the hub center under specified wind conditions as scaling targets to perform scaling processing on the updated reference wind conditions on the rotor surface to obtain the rotor surface structural wind conditions under specified wind conditions. The load simulation unit 1130 can be used to determine the simulated load conditions of the target wind turbine under specified wind conditions based on the rotor surface structural wind conditions of the target wind turbine. It is understood that the specific functional implementation of the above-mentioned functional modules, from the rotor surface reference wind condition determination unit 1110 to the load simulation unit 1130, can all refer to the implementation of each step in the wind turbine load simulation method provided in the aforementioned embodiments, and will not be elaborated here.

[0031] Some embodiments of this disclosure also relate to an electronic device that can be used to implement any one or more functional modules of the wind turbine surface reference wind condition determination unit 1110, the wind turbine surface structure wind condition determination unit 1120, and the load simulation unit 1130 provided in the foregoing embodiments, and is not limited herein. Figure 12 A schematic diagram of the structure of an electronic device is shown, such as... Figure 12 As shown, the electronic device includes at least one processor 1210 and a memory 1220 communicatively connected to the at least one processor. The memory 1220 stores instructions that can be executed by the at least one processor 1210. The instructions are executed by the at least one processor 1210 to enable the at least one processor 1210 to perform the various steps in the wind turbine load simulation method provided in the foregoing embodiments.

[0032] The memory 1220 and processor 1210 are connected via a bus. This bus can include any number of interconnecting buses and bridges, connecting various circuits of one or more processors 1210 and memory 1220. The bus can also connect various other circuits, such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and therefore will not be described further herein. A bus interface provides an interface between the bus and the transceiver. The transceiver can be a single element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices over a transmission medium. Data processed by processor 1210 is transmitted over a wireless medium via an antenna, which further receives data and transmits it to the processor.

[0033] In some embodiments, the processor 1210 may be responsible for managing the bus and general processing, and may also provide various functions, including generating wind turbine reference wind conditions, generating wind turbine configuration wind conditions, and determining load simulation conditions, while the memory 1220 may be used to store data used by the processor when performing operations, such as preset inflow wind field files, etc., without limitation.

[0034] Some embodiments of this disclosure also relate to a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the various steps in the wind turbine load simulation method provided in the foregoing embodiments. In some embodiments, the computer-readable storage medium may include flash memory, a hard disk, a multimedia card, a card-type memory (e.g., SD or DX memory), random access memory (RAM), static random access memory (SRAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), programmable read-only memory (PROM), magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the computer-readable storage medium may be an internal storage unit of a computer device, such as the hard disk or memory of the computer device. In other embodiments, the computer-readable storage medium may also be an external storage device of a computer device, such as a plug-in hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc., provided on the computer device. Of course, the computer-readable storage medium may also include both internal storage units and external storage devices of a computer device. In this embodiment, the computer-readable storage medium is typically used to store the operating system and various application software installed on the computer device, such as the program code corresponding to the wind turbine load simulation method in this embodiment. Furthermore, the computer-readable storage medium can also be used to temporarily store various types of data that have been output or will be output.

[0035] Some embodiments of this disclosure also relate to a computer program product, including a computer program that, when executed by a processor, implements the wind turbine load simulation method provided in the foregoing embodiments.

[0036] In some embodiments, the computer program product may involve only a computer program, which may be carried on a storage medium or a processing device. In other embodiments, the computer program product may also be a storage medium or processing device containing the aforementioned computer program. The processing device may include one or more processors, and the storage medium. Those skilled in the art will understand that a program can instruct related hardware to implement all or part of the steps in the wind turbine load simulation method provided in the above embodiments. This program is stored in a storage medium and includes several instructions to cause a device (which may be a microcontroller, chip, etc.) or processor to execute all or part of the steps in the wind turbine load simulation method provided in the various embodiments of this disclosure.

[0037] The basic concepts have been described above. It is obvious that the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, various modifications, improvements, and corrections may be made to this specification by those skilled in the art. Such modifications, improvements, and corrections are taught in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

Claims

1. A method for simulating wind turbine loads, characterized in that, include: The reference wind conditions of the rotor surface of the target wind turbine equipment are obtained. The reference wind conditions of the rotor surface include the average wind speed distribution within the rotor surface of the target wind turbine equipment, and the wind speed time sequence of at least one reference point within the rotor surface of the target wind turbine equipment. Based on the reference wind conditions of the rotor surface of the target wind turbine, the wind conditions of the rotor surface structure of the target wind turbine under the specified wind conditions are determined. Based on the wind conditions of the rotor surface structure of the target wind turbine under specified wind conditions, determine the simulated load of the target wind turbine under specified wind conditions; The step of determining the wind conditions of the wind turbine's rotor surface structure under specified wind conditions based on the reference wind conditions of the target wind turbine includes: The wind speed and turbulence at the hub center of the target wind turbine equipment are obtained under specified wind conditions. Based on a preset inflow wind field file, obtain the wind speed fluctuation information of the rotor surface of the target wind turbine under the specified wind conditions; Based on the wind speed fluctuation information of the wind turbine surface of the target wind turbine under the specified wind conditions, update the wind turbine surface reference wind conditions; Using the wind speed and turbulence at the hub center under the specified wind conditions as scaling targets, the updated wind turbine surface reference wind conditions are scaled to obtain the wind turbine surface structure wind conditions under the specified wind conditions.

2. The wind turbine load simulation method according to claim 1, characterized in that, The scaling process for the updated wind turbine surface reference wind conditions includes: During the scaling process, the ratio of the wind speed at at least one reference point on the rotor surface of the target wind turbine to the wind speed at the hub center is kept consistent with the first reference ratio, and the ratio of the turbulence at the reference point to the turbulence at the hub center is kept consistent with the second reference ratio. Wherein, the first reference ratio is the ratio of the wind speed at the reference point under the reference wind conditions on the wind turbine surface to the wind speed at the center of the hub; The second reference ratio is the ratio of the turbulence at the reference point under the reference wind conditions to the turbulence at the center of the hub.

3. The wind turbine load simulation method according to claim 1 or 2, characterized in that, The step of determining the wind conditions of the wind turbine's rotor surface structure under specified wind conditions based on the reference wind conditions of the wind turbine's rotor surface further includes: In the case where there is interfering wind turbine equipment at the target wind turbine equipment, the wake interference information of the interfering wind turbine equipment is determined; After performing scaling processing on the updated wind turbine surface reference wind conditions, the scaled wind turbine surface reference wind conditions are corrected based on the wake interference information to obtain the wind turbine surface structure wind conditions under the specified wind conditions.

4. The wind turbine load simulation method according to claim 3, characterized in that, The determination of the wake interference information of the interfering wind turbine equipment includes: Based on the specified wind conditions, the inflow wind conditions of the interfering fan equipment are taken as the inflow wind conditions of the target fan equipment; Based on the wake interference model and the incoming wind conditions of the target wind turbine, the wind speed attenuation information of the rotor surface caused by the interfering wind turbine to the target wind turbine is determined, and the wind speed attenuation information of the rotor surface is used as the wake interference information.

5. The wind turbine load simulation method according to claim 1, characterized in that, The step of updating the wind turbine reference wind condition based on the wind speed fluctuation information of the target wind turbine under the specified wind conditions includes: Based on the wind turbine reference wind conditions of the target wind turbine equipment, determine the wind turbine reference wind speed fluctuation information in the wind turbine reference wind conditions; The wind speed pulsation information of the target wind turbine under the specified wind conditions is superimposed with the wind speed reference pulsation information of the wind turbine to update the wind speed reference pulsation information of the wind turbine.

6. The wind turbine load simulation method according to claim 1, characterized in that, The step of obtaining the reference wind conditions on the rotor surface of the target wind turbine includes: Based on the environmental information of the target wind turbine, obtain the three-dimensional computational fluid dynamics simulation results of the target wind turbine in different sectors; The incoming flow direction of the target wind turbine is set to be perpendicular to the impeller surface of the target wind turbine. Based on the three-dimensional computational fluid dynamics simulation results, the reference wind conditions of the impeller surface of the target wind turbine are determined.

7. A wind turbine load simulation system, characterized in that, include: The wind turbine reference wind condition determination unit is used to obtain the wind turbine reference wind condition of the target wind turbine equipment; The wind turbine surface structure wind condition determination unit is used to determine the wind turbine surface structure wind condition of the target wind turbine equipment under a specified wind condition based on the wind turbine surface reference wind condition of the target wind turbine equipment; The load simulation unit is used to determine the simulated load of the target wind turbine equipment under specified wind conditions based on the wind conditions constructed on the rotor surface of the target wind turbine equipment under specified wind conditions. The wind turbine surface structure wind condition determination unit is used to acquire the wind speed and turbulence at the hub center of the target wind turbine under specified wind conditions; acquire the wind speed fluctuation information of the wind turbine surface under the specified wind conditions based on a preset inflow wind field file; update the wind turbine surface reference wind conditions based on the wind speed fluctuation information of the wind turbine surface under the specified wind conditions; and perform scaling processing on the updated wind turbine surface reference wind conditions using the wind speed and turbulence at the hub center under the specified wind conditions as scaling targets to obtain the wind turbine surface structure wind conditions under the specified wind conditions.

8. An electronic device, characterized in that, include: At least one processor; and a memory communicatively connected to the at least one processor; The processor stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the wind turbine load simulation method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions, which, when executed by a processor, implement the wind turbine load simulation method as described in any one of claims 1 to 6.

10. A computer program product, characterized in that, It includes a computer program that, when executed by a processor, implements the wind turbine load simulation method as described in any one of claims 1 to 6.

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