Blade optimization method and device, storage medium, electronic device and computer program product

Abstract

The invention discloses a blade optimization method and device, a storage medium, an electronic device and a computer program product, and relates to the field of blades, and the blade optimization method comprises the following steps: determining a corresponding rated wind speed of a target blade under the condition of considering flexible deformation, the rated wind speed is the wind speed corresponding to the condition that the wind driven generator reaches the rated generation power; determining an aeroelastic torsional deformation angle of the blade section of the blade corresponding to the rated wind speed to obtain a target aeroelastic torsional deformation angle; and optimizing the pneumatic torsional angle of the blade section according to the target aeroelastic torsional deformation angle. By the adoption of the technical scheme, the problem that power is reduced due to flexible deformation of the blades is solved.

Description

Technical Field

[0001] The present application relates to the field of blades, and more specifically, to a blade optimization method and device, a storage medium, an electronic device, and a computer program product. Background Art

[0002] The blade area of ​​wind turbines is getting larger and larger. As the wind speed increases, the flexible deformation of the blades becomes larger and larger, causing the blades to deviate from the optimal design angle of attack when in steady-state operation, resulting in a certain amount of power loss. Moreover, as the blades continue to grow, their power loss becomes larger and larger, so it is necessary to consider the impact of blade flexibility during design.

[0003] With regard to the problem of power reduction due to flexible deformation of blades in related technologies, no effective solution has been proposed so far.

[0004] Therefore, it is necessary to improve the related technology to overcome the above-mentioned defects in the related technology. Summary of the invention

[0005] The embodiments of the present application provide a blade optimization method and device, a storage medium, an electronic device, and a computer program product to at least solve the problem of power drop due to flexible deformation of the blade.

[0006] According to one aspect of an embodiment of the present application, a blade optimization method is provided, comprising: determining a rated wind speed corresponding to a target blade taking flexible deformation into account, wherein the rated wind speed is the wind speed corresponding to a wind generator reaching a rated power generation capacity; determining an aeroelastic torsional deformation angle of a blade cross section of the blade corresponding to the rated wind speed to obtain a target aeroelastic torsional deformation angle; and optimizing the aerodynamic torsion angle of the blade cross section according to the target aeroelastic torsional deformation angle.

[0007] In an exemplary embodiment, the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed is determined to obtain a target aeroelastic torsional deformation angle, including: selecting N wind speeds from a target wind speed range, wherein a difference between two adjacent wind speeds among the N wind speeds is equal, the target wind speed range is [preset wind speed, rated wind speed], the preset wind speed is less than the rated wind speed, and N is an integer greater than or equal to 2; determining the aeroelastic torsional deformation angle of the blade cross section at each of the N wind speeds to obtain N reference aeroelastic torsional deformation angles; and determining the target aeroelastic torsional deformation angle based on the N reference aeroelastic torsional deformation angles.

[0008] In an exemplary embodiment, determining the target gas-elastic torsional deformation angle according to the N reference gas-elastic torsional deformation angles includes: determining an average value of the N reference gas-elastic torsional deformation angles as the target gas-elastic torsional deformation angle.

[0009] In an exemplary embodiment, the aerodynamic torsion angle of the blade section is optimized according to the target aeroelastic torsion deformation angle, including: determining an initial aerodynamic torsion angle of the blade section; adding the target aeroelastic torsion deformation angle to the initial aerodynamic torsion angle to obtain a target aerodynamic torsion angle; and setting the aerodynamic torsion angle of the blade section to the target aerodynamic torsion angle.

[0010] In an exemplary embodiment, the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed is determined to obtain a target aeroelastic torsional deformation angle, including: determining M blade cross sections of the blade, and determining the aeroelastic torsional deformation angle of each of the M blade cross sections corresponding to the rated wind speed to obtain M target aeroelastic torsional deformation angles; optimizing the aerodynamic torsional angle of the blade cross section according to the target aeroelastic torsional deformation angles, including: optimizing the aerodynamic torsional angle of the M blade cross sections according to the M target aeroelastic torsional deformation angles.

[0011] In an exemplary embodiment, determining the rated wind speed corresponding to the target blade considering flexible deformation includes: performing a steady-state operation analysis on the target blade through a wind turbine simulation tool to determine the rated wind speed corresponding to the target blade considering flexible deformation.

[0012] According to another aspect of an embodiment of the present application, a blade optimization device is also provided, including: a first determination module, used to determine the rated wind speed corresponding to the target blade taking into account flexible deformation, wherein the rated wind speed is the wind speed corresponding to the wind generator reaching the rated power generation power; a second determination module, used to determine the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed, and obtain a target aeroelastic torsional deformation angle; an optimization module, used to optimize the aerodynamic torsion angle of the blade cross section according to the target aeroelastic torsional deformation angle.

[0013] According to another aspect of the embodiment of the present application, a computer-readable storage medium is further provided, wherein the computer-readable storage medium includes a stored program, wherein the program is configured to execute the above-mentioned blade optimization method when running.

[0014] According to another aspect of an embodiment of the present application, there is further provided an electronic device, comprising a memory and a processor, wherein a computer program is stored in the memory, wherein the processor is configured to execute the above-mentioned blade optimization method through the computer program.

[0015] According to another aspect of the embodiments of the present application, a computer program product is provided, including a computer program, and the above-mentioned blade optimization method is implemented when the computer program is executed by a processor.

[0016] In the present application, the rated wind speed corresponding to the target blade is determined while taking flexible deformation into consideration, thereby determining the aeroelastic torsional deformation angle of the corresponding blade section, and then optimizing the aerodynamic torsion angle of the blade section, thereby compensating for the flexible deformation of the blade, improving the aerodynamic efficiency and power generation of the blade, and thus solving the problem of power drop due to flexible deformation of the blade. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a hardware structure block diagram of a blade-optimized mobile terminal according to an embodiment of the present application;

[0020] Figure 2 is a flow chart of blade optimization according to an embodiment of the present application;

[0021] Figure 3 It is a structural block diagram of a blade optimization device according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 1 is a hardware structure block diagram of a blade-optimized mobile terminal according to an embodiment of the present application. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor (MP) or a programmable logic device (FPGA)) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations are shown.

[0025] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the blade optimization in the embodiment of the present application. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some instances, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the mobile terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0026] The transmission device 106 is used to receive or send data via a network. The specific example of the above network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0027] In order to solve the above problem, this embodiment provides a blade optimization method, including but not limited to being applied to the above mobile terminal. Figure 2 is a flow chart of blade optimization according to an embodiment of the present application, such as Figure 2 As shown, the process includes the following steps S202-S208:

[0028] Step S202: determining the rated wind speed corresponding to the target blade in consideration of flexible deformation, wherein the rated wind speed is the wind speed corresponding to the wind turbine generator reaching the rated power generation;

[0029] Optionally, simulation analysis is performed using professional software (such as Bladed) to determine the wind speed at which the wind turbine reaches its designed rated power under the conditions of the target blade's flexibility and aerodynamic characteristics. This is the basis of the optimization process, ensuring that subsequent design adjustments are based on the blade's actual operating efficiency point.

[0030] Step S204: determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed, and obtaining a target aeroelastic torsional deformation angle;

[0031] Optionally, at the rated wind speed determined in step S202, the aeroelastic torsional deformation angle of the blade cross section is analyzed.

[0032] It should be noted that aeroelastic torsional deformation is the structural deformation of the blade under the action of aerodynamic loads. Especially when the wind speed changes, this deformation will cause the blade's angle of attack to deviate from the optimal design value, thereby affecting the power generation efficiency. By calculating the target aeroelastic torsional deformation angle, key parameters are provided for subsequent design optimization.

[0033] Step S206: Optimizing the aerodynamic twist angle of the blade cross section according to the target aeroelastic torsional deformation angle.

[0034] Optionally, the target aeroelastic torsional deformation angle obtained in step S204 is used to optimize and adjust the initial aerodynamic torsional angle of the blade section. By increasing or decreasing the initial aerodynamic torsional angle of the blade section, the blade section can automatically compensate for the influence of the flexible deformation during operation, ensuring that the blade can maintain a near-optimal angle of attack at different wind speeds, thereby improving the overall aerodynamic efficiency and power generation of the wind turbine.

[0035] It should be noted that by considering the flexible deformation characteristics of the blades and adjusting the aerodynamic design of the blades, the power loss caused by the flexible deformation of the blades under high wind speed conditions can be effectively avoided. Compared with the traditional rigid blade design, it can significantly improve the aerodynamic efficiency of the blades within the actual wind speed range, increase the power generation of the wind turbine, reduce the energy loss caused by the flexible deformation of the blades, and improve the economy and stability of the wind power generation system.

[0036] The above steps determine the rated wind speed corresponding to the target blade under the condition of considering the flexible deformation, thereby determining the aeroelastic torsional deformation angle of the corresponding blade section, and then optimizing the aerodynamic torsion angle of the blade section, compensating for the flexible deformation of the blade, improving the aerodynamic efficiency and power generation of the blade, and thus solving the problem of power drop due to the flexible deformation of the blade.

[0037] In an exemplary embodiment, determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed to obtain a target aeroelastic torsional deformation angle may be achieved by the following steps S11-S13:

[0038] Step S11: selecting N wind speeds from a target wind speed range, wherein the difference between two adjacent wind speeds in the N wind speeds is equal, the target wind speed range is [preset wind speed, rated wind speed], the preset wind speed is less than the rated wind speed, and N is an integer greater than or equal to 2;

[0039] Optionally, the N wind speeds include the rated wind speed and the preset wind speed.

[0040] Optionally, in order to comprehensively evaluate the aerodynamic efficiency of the blade under different wind speed conditions, N wind speed points are evenly selected for analysis from the preset wind speed to the rated wind speed. This wind speed range covers the wind speed interval from the start-up of the wind turbine to the maximum efficiency, ensuring the comprehensiveness and effectiveness of the optimization method. The differences between the N selected wind speed points are equal, which can provide more detailed data on the impact of wind speed changes on the aerodynamic performance of the blade.

[0041] Step S12: determining the aeroelastic torsional deformation angle of the blade cross section at each of the N wind speeds to obtain N reference aeroelastic torsional deformation angles;

[0042] Optionally, at the determined N wind speed points, use professional software (such as Bladed) or other aerodynamic and structural analysis tools to perform detailed aeroelastic performance analysis on each section of the blade, and calculate the aeroelastic torsional deformation angle of the blade section at these wind speed points. The aeroelastic torsional deformation angle reflects the structural deformation of the blade due to its flexible characteristics under the action of aerodynamic loads, which directly affects the aerodynamic efficiency of the blade. By obtaining N reference aeroelastic torsional deformation angles, the deformation characteristics of the blade at different wind speeds can be more fully understood.

[0043] Optionally, a steady-state operation analysis is performed on the target blade using Bladed software to obtain the rated wind speed under flexible conditions; N different wind speeds are taken from the starting wind speed of the target blade to the rated wind speed at intervals of 2 meters per second, and the aeroelastic torsional deformation angle of the blade section under different wind speeds is calculated.

[0044] Step S13: determining the target gas-elastic torsional deformation angle according to the N reference gas-elastic torsional deformation angles.

[0045] It should be noted that the target aeroelastic torsional deformation angle represents the flexible deformation angle that the blade section needs to compensate for within the target wind speed range in order to maintain the aerodynamic efficiency of the blade under various wind speed conditions. Through this step, precise adjustment of the blade aerodynamic design can be achieved to ensure that the blade can automatically compensate for flexible deformation in actual operation, increase power generation and reduce power loss.

[0046] It should be noted that through the above steps, the aerodynamic performance of the blades under actual operating conditions is improved by accurately calculating the aeroelastic torsional deformation angle of the blades at different wind speeds and optimizing the design based on these data. This method not only improves the flexibility and adaptability of blade design, but also significantly increases the power generation of wind turbines and reduces energy loss, thereby improving the overall efficiency and economy of the wind power generation system.

[0047] In an exemplary embodiment, determining the target gas-elastic torsional deformation angle according to the N reference gas-elastic torsional deformation angles may be achieved by the following steps: determining an average value of the N reference gas-elastic torsional deformation angles as the target gas-elastic torsional deformation angle.

[0048] It should be noted that the average value of N reference aeroelastic torsional deformation angles is used as the target aeroelastic torsional deformation angle. This method effectively balances the power output of the blade at different wind speeds.

[0049] In an exemplary embodiment, the aerodynamic twist angle of the blade cross section is optimized according to the target aeroelastic torsional deformation angle, which can be achieved by the following steps S21-S23:

[0050] Step S21: determining the initial aerodynamic twist angle of the blade cross section;

[0051] It should be noted that the initial aerodynamic twist angle is the aerodynamic twist angle preset in the blade design, which affects the angle of attack distribution of the blade and thus affects the aerodynamic performance of the blade.

[0052] Step S22: adding the initial aerodynamic twist angle to the target aeroelastic torsional deformation angle to obtain a target aerodynamic twist angle;

[0053] It should be noted that the purpose of adding the target aeroelastic torsion deformation angle to the initial aerodynamic twist angle is to adjust the blade design to automatically compensate for the impact of flexible deformation in actual operation and maintain the optimal aerodynamic efficiency of the blade at various wind speeds.

[0054] Step S23: setting the aerodynamic twist angle of the blade cross section as the target aerodynamic twist angle.

[0055] It should be noted that, through step S23, the aerodynamic twist angle of each section will be adjusted according to the target aerodynamic twist angle. This adjustment ensures that when the blade is running, the angle of attack of each section can be closer to the optimal design angle of attack, thereby improving the aerodynamic efficiency of the blade and the power generation of the wind turbine.

[0056] It should be noted that by determining the target aeroelastic torsional deformation angle and optimizing the aerodynamic torsion angle of the blade section accordingly, the problem of decreased aerodynamic efficiency of flexible wind turbine blades caused by flexible deformation during operation can be effectively solved, which has a significant technical effect on improving the overall performance of the wind power generation system.

[0057] In an exemplary embodiment, determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed to obtain the target aeroelastic torsional deformation angle may be achieved by the following steps: determining M blade cross sections of the blade, and determining the aeroelastic torsional deformation angle of each blade cross section of the M blade cross sections corresponding to the rated wind speed to obtain M target aeroelastic torsional deformation angles;

[0058] In an exemplary embodiment, the aerodynamic twist angle of the blade section is optimized according to the target aeroelastic torsional deformation angle, which can be achieved by the following steps: the aerodynamic twist angles of the M blade sections are optimized according to the M target aeroelastic torsional deformation angles.

[0059] It should be noted that the blade is optimized by optimizing the M cross sections of the blade, thereby ensuring that the angle of attack of the blade under actual operating conditions is closer to the optimal design angle of attack, reducing the degradation of aerodynamic characteristics due to flexible deformation, improving the blade's ability to adapt to wind speed changes, and improving the power generation efficiency of the wind turbine.

[0060] In an exemplary embodiment, determining the rated wind speed corresponding to the target blade when flexible deformation is taken into account can be achieved by the following steps: performing a steady-state operation analysis on the target blade through a wind turbine simulation tool to determine the rated wind speed corresponding to the target blade when flexible deformation is taken into account.

[0061] Optionally, the wind turbine simulation tool is Bladed software. During the simulation process, the software simulates the operating state of the blades at different wind speeds, taking into account the aerodynamic characteristics, structural characteristics and the influence of flexible deformation on the dynamic response of the blades. Through analysis, the wind speed at which the blade design can achieve maximum output power and maintain stable operation is determined, that is, the rated wind speed. This rated wind speed is obtained on the basis of fully considering the influence of flexible deformation of the blades on aerodynamic efficiency and power generation, and is closer to the actual operation of the blades.

[0062] It should be noted that the steady-state operation analysis of wind turbine simulation tools and the determination of the rated wind speed of the target blades under consideration of flexible deformation are important steps to improve the design level of wind turbine blades and the overall performance of wind power generation systems. This method not only improves the accuracy of the design, but also ensures the high efficiency and stability of the blades in actual operation.

[0063] Obviously, the above-described embodiments are only embodiments of a part of the present invention, rather than all embodiments. In order to better understand the above method, the above process is described below in conjunction with embodiments, but it is not intended to limit the technical solutions of the embodiments of the present invention, specifically:

[0064] 1. Use Bladed software to perform steady-state operation analysis on the designed blades to obtain the rated wind speed under flexible conditions;

[0065] 2. From the starting wind speed to the rated wind speed, take n different wind speeds V at intervals of 2 m / s. i , calculate V i Aeroelastic torsional deformation angle T of blade section under wind speed j_i , where j represents the selected analysis section;

[0066] 3. Aeroelastic torsional deformation angle T calculated due to different wind speeds j In order to balance the power impact at different wind speeds, the average value of the aeroelastic torsional deformation angle T at all calculated wind speeds is taken. j_i_a ;

[0067] 4. Based on the initial aerodynamic twist angle T of the designed blade at the blade section j w_j , the design torsion angle after considering flexibility is T j_i_a +T w_j ;

[0068] 5. Select m sections on the blade and use the method of steps 2 to 4 to obtain the twist angles of m sections after considering flexibility, and finally obtain a new aerodynamic shape of the blade with higher aerodynamic efficiency.

[0069] Through the description of the above implementation methods, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, computer, server, or network device, etc.) to execute the methods of each embodiment of the present application.

[0070] In this embodiment, a blade optimization device is also provided, which is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0071] Figure 3 : is a structural block diagram of a blade optimization device according to an embodiment of the present application, the device comprising:

[0072] A first determination module 302 is used to determine a rated wind speed corresponding to a target blade in consideration of flexible deformation, wherein the rated wind speed is a wind speed corresponding to a wind turbine generator reaching a rated power generation;

[0073] A second determination module 304 is used to determine the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed, and obtain a target aeroelastic torsional deformation angle;

[0074] The optimization module 306 is used to optimize the aerodynamic twist angle of the blade section according to the target aeroelastic twist deformation angle.

[0075] The above-mentioned device determines the rated wind speed corresponding to the target blade under the condition of taking flexible deformation into consideration, thereby determining the aeroelastic torsional deformation angle of the corresponding blade cross section, and then optimizing the aerodynamic torsion angle of the blade cross section, compensating for the flexible deformation of the blade, improving the aerodynamic efficiency and power generation of the blade, and thus solving the problem of power drop due to flexible deformation of the blade.

[0076] In an exemplary embodiment, the second determination module 304 is also used to select N wind speeds from a target wind speed range, wherein the difference between two adjacent wind speeds among the N wind speeds is equal, the target wind speed range is [preset wind speed, rated wind speed], the preset wind speed is less than the rated wind speed, and N is an integer greater than or equal to 2; determine the aeroelastic torsional deformation angle of the blade cross section at each of the N wind speeds to obtain N reference aeroelastic torsional deformation angles; and determine the target aeroelastic torsional deformation angle based on the N reference aeroelastic torsional deformation angles.

[0077] In an exemplary embodiment, the second determination module 304 is further configured to determine an average value of the N reference aeroelastic torsional deformation angles as the target aeroelastic torsional deformation angle.

[0078] In an exemplary embodiment, the optimization module 306 is also used to determine the initial aerodynamic twist angle of the blade cross section; add the target aerodynamic twist angle to the initial aerodynamic twist angle to obtain the target aerodynamic twist angle; and set the aerodynamic twist angle of the blade cross section to the target aerodynamic twist angle.

[0079] In an exemplary embodiment, the second determination module 304 is further used to determine the M blade sections of the blade, and determine the aeroelastic torsional deformation angle of each blade section among the M blade sections corresponding to the rated wind speed, to obtain M target aeroelastic torsional deformation angles; the optimization module 306 is further used to optimize the aerodynamic torsion angles of the M blade sections according to the M target aeroelastic torsional deformation angles.

[0080] In an exemplary embodiment, the first determination module 302 is further configured to perform a steady-state operation analysis on the target blade using a wind turbine simulation tool to determine a rated wind speed corresponding to the target blade in consideration of flexible deformation.

[0081] An embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored, wherein the computer program is configured to execute the steps of any of the above method embodiments when running.

[0082] Optionally, in this embodiment, the storage medium may be configured to store a computer program for performing the following steps:

[0083] S1, determining the rated wind speed corresponding to the target blade when flexible deformation is taken into account, wherein the rated wind speed is the wind speed corresponding to the wind turbine generator reaching the rated power generation;

[0084] S2, determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed, and obtaining a target aeroelastic torsional deformation angle;

[0085] S3, optimizing the aerodynamic twist angle of the blade cross section according to the target aeroelastic twist deformation angle.

[0086] In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to, various media that can store computer programs, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0087] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0088] An embodiment of the present application further provides a computer program product, including a computer program, and when the computer program is executed by a processor, the steps in any one of the above method embodiments are performed.

[0089] An embodiment of the present application further provides an electronic device, including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0090] Optionally, in this embodiment, the processor may be configured to perform the following steps through a computer program:

[0091] S1, determining the rated wind speed corresponding to the target blade when flexible deformation is taken into account, wherein the rated wind speed is the wind speed corresponding to the wind turbine generator reaching the rated power generation;

[0092] S2, determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed, and obtaining a target aeroelastic torsional deformation angle;

[0093] S3, optimizing the aerodynamic twist angle of the blade cross section according to the target aeroelastic twist deformation angle.

[0094] In an exemplary embodiment, the electronic device may further include a transmission device and an input / output device, wherein the transmission device is connected to the processor, and the input / output device is connected to the processor.

[0095] For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary implementation modes, and this embodiment will not be described in detail herein.

[0096] Obviously, those skilled in the art should understand that the above modules or steps of the present application can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order from that herein, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present application is not limited to any specific combination of hardware and software.

[0097] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A blade optimization method, characterized in that: include: Determine the rated wind speed corresponding to the target blade when flexible deformation is taken into account, wherein the rated wind speed is the wind speed corresponding to the wind turbine generator reaching the rated power generation; Determining an aeroelastic torsional deformation angle of a blade cross section of the blade corresponding to the rated wind speed to obtain a target aeroelastic torsional deformation angle; The aerodynamic twist angle of the blade cross section is optimized according to the target aeroelastic twist deformation angle.

2. The method according to claim 1, characterized in that Determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed to obtain a target aeroelastic torsional deformation angle includes: Selecting N wind speeds from a target wind speed range, wherein the difference between two adjacent wind speeds in the N wind speeds is equal, the target wind speed range is [preset wind speed, rated wind speed], the preset wind speed is less than the rated wind speed, and N is an integer greater than or equal to 2; Determining the aeroelastic torsional deformation angle of the blade cross section at each of the N wind speeds to obtain N reference aeroelastic torsional deformation angles; The target gas-elastic torsional deformation angle is determined according to the N reference gas-elastic torsional deformation angles.

3. The method according to claim 2, characterized in that Determining the target gas-elastic torsional deformation angle according to the N reference gas-elastic torsional deformation angles includes: The average value of the N reference gas-elastic torsional deformation angles is determined as the target gas-elastic torsional deformation angle.

4. The method according to claim 1, characterized in that: Optimizing the aerodynamic twist angle of the blade cross section according to the target aeroelastic twist deformation angle includes: determining an initial aerodynamic twist angle of the blade cross section; Adding the initial aerodynamic twist angle to the target aeroelastic torsional deformation angle to obtain a target aerodynamic twist angle; The aerodynamic twist angle of the blade cross section is set as the target aerodynamic twist angle.

5. The method according to claim 1, characterized in that Determining the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed to obtain a target aeroelastic torsional deformation angle, comprising: determining M blade cross sections of the blade, and determining the aeroelastic torsional deformation angle of each blade cross section of the M blade cross sections corresponding to the rated wind speed to obtain M target aeroelastic torsional deformation angles; Optimizing the aerodynamic twist angle of the blade cross section according to the target aeroelastic twist deformation angle includes: The aerodynamic twist angles of the M blade sections are optimized according to the M target aeroelastic torsional deformation angles.

6. The method according to claim 1, characterized in that Determine the rated wind speed corresponding to the target blade taking into account the flexible deformation, including: A steady-state operation analysis is performed on the target blades using a wind turbine generator simulation tool to determine the rated wind speed corresponding to the target blades in consideration of flexible deformation.

7. A blade optimization device, characterized in that: include: A first determination module is used to determine the rated wind speed corresponding to the target blade when flexible deformation is taken into account, wherein the rated wind speed is the wind speed corresponding to the wind turbine generator reaching the rated power generation; A second determination module is used to determine the aeroelastic torsional deformation angle of the blade cross section of the blade corresponding to the rated wind speed, and obtain a target aeroelastic torsional deformation angle; The optimization module is used to optimize the aerodynamic twist angle of the blade section according to the target aeroelastic twist deformation angle.

8. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored program, wherein the program executes the method according to any one of claims 1 to 6 when executed.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to execute the method according to any one of claims 1 to 6 through the computer program.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

Images