Wind power blade parameter determination method and related device

Abstract

The invention discloses a wind power blade parameter determination method and a related device, and the method comprises the steps: obtaining a plurality of groups of new blade shape parameters which meet a blade aerodynamic shape optimization target and a limit point position of a wind power blade shape boundary, and obtaining a target blade aerodynamic shape parameter which meets the blade aerodynamic shape optimization target through the processing of a Bladed model of a wind turbine generator; and a blade pneumatic-structure initial Bladed data packet is obtained in combination with the initial blade structure attribute parameters, then target blade structure attribute parameters meeting the blade safety performance target and the weight boundary at the same time are obtained, and target wind power blade parameters are formed by the target blade pneumatic appearance parameters and the target blade structure attribute parameters. The target blade aerodynamic configuration parameters meet the blade aerodynamic configuration optimization target, the target blade structure attribute parameters meet the blade safety performance requirement and the weight boundary, and therefore the target wind power blade parameters can enable the blade to keep the aerodynamic performance and the structure stability of the wind power blade under the low-load operation working condition.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power generation, in particular to a wind turbine blade parameter determination method and related device. BACKGROUND

[0002] With the increase of the length of the wind turbine blade, the aerodynamic load and structural load borne by the wind turbine blade are also significantly improved, thus higher requirements are put forward for the design of the wind turbine blade. However, with the improvement of the power generation efficiency of the wind turbine blade, the aerodynamic load borne by the wind turbine blade will also increase accordingly, thus adversely affecting the aerodynamic performance of the wind turbine blade. At the same time, the contradiction between the lightweight demand and the strength requirement of the wind turbine blade is increasingly highlighted, although the weight reduction of the blade through material innovation and structural optimization can effectively reduce the structural load, excessive weight reduction may lead to insufficient blade stiffness, affecting the structural stability of the wind turbine blade.

[0003] Therefore, how to keep the aerodynamic performance and structural stability of the wind turbine blade under low load operating conditions has become a technical problem to be solved by the person skilled in the art. SUMMARY

[0004] Therefore, the present application discloses a wind turbine blade parameter determination method and related device to keep the aerodynamic performance and structural stability of the wind turbine blade under low load operating conditions.

[0005] A wind turbine blade parameter determination method comprises:

[0006] Obtaining a plurality of sets of new blade shape parameters satisfying the limit point positions of the blade aerodynamic shape optimization target and the wind turbine blade shape boundary;

[0007] Processing the plurality of sets of new blade shape parameters based on a wind turbine Bladed model to obtain target blade aerodynamic shape parameters satisfying the blade aerodynamic shape optimization target;

[0008] Obtaining blade aerodynamic-structure initial Bladed data packets according to the target blade aerodynamic shape parameters and initial blade structure attribute parameters;

[0009] Processing the blade aerodynamic-structure initial Bladed data packets based on the wind turbine Bladed model to obtain target blade structure attribute parameters satisfying the blade safety performance target and the weight boundary, the target blade structure attribute parameters including mass distribution and stiffness distribution;

[0010] Taking the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters as target wind turbine blade parameters.

[0011] Optionally, the wind turbine Bladed model processes the plurality of new blade profile parameters to obtain target blade aerodynamic profile parameters satisfying a blade aerodynamic profile optimization target, including:

[0012] The wind turbine Bladed model performs aerodynamic performance calculation on each new blade profile parameter to obtain blade aerodynamic performance parameters and performs overall performance evaluation on the each new blade profile parameter to obtain wind turbine performance parameters;

[0013] From the blade aerodynamic performance parameters and the wind turbine performance parameters, an aerodynamic layout result satisfying the blade aerodynamic profile optimization target is screened out as the target blade aerodynamic profile parameters.

[0014] Optionally, the process of establishing the wind turbine Bladed model includes:

[0015] Determine blade key profile parameters according to overall development requirements of the wind turbine, and construct an initial wind turbine Bladed model by iterating the blade key profile parameters;

[0016] Optimize the initial wind turbine Bladed model based on initial blade profile parameters to obtain the wind turbine Bladed model.

[0017] Optionally, the process of determining the blade aerodynamic profile optimization target and the wind turbine blade profile boundary includes:

[0018] Determine the blade aerodynamic profile optimization target and the wind turbine blade profile boundary by coupling analysis of wind turbine blade key profile parameters according to a wind turbine power generation target and load requirements.

[0019] Optionally, the process of obtaining the blade aerodynamic-structural initial Bladed data package according to the target blade aerodynamic profile parameters and initial blade structural attribute parameters includes:

[0020] Obtain initial blade structural attribute parameters;

[0021] Determine initial mass distribution and initial stiffness distribution in a plurality of directions of the blade according to the initial blade structural attribute parameters;

[0022] Generate a blade aerodynamic-structural initial Bladed data package by using the target blade aerodynamic profile parameters and the initial mass distribution and initial stiffness distribution.

[0023] Optionally, the process of processing the blade aerodynamic-structural initial Bladed data package based on the wind turbine Bladed model to obtain target blade structural attribute parameters satisfying a blade safety performance target and a weight boundary includes:

[0024] The wind turbine Bladed model is used to batch process the blade aerodynamic-structure initial Bladed data package, to obtain a plurality of sets of new blade structure characteristic parameters;

[0025] The wind turbine Bladed model is used to check the blade stability for each set of new blade structure characteristic parameters, to screen the target blade structure attribute parameters that meet the blade safety performance target and the weight boundary at the same time.

[0026] Optionally, the determination process of the blade safety performance target and the weight boundary comprises:

[0027] According to the overall development requirements of the wind turbine, the blade safety performance target and the weight boundary are obtained by iteratively optimizing the structure layer.

[0028] The blade safety performance target and the weight boundary include: the load boundary limit condition of the high load risk area, the blade weight boundary, the mass distribution boundary condition, and the stiffness distribution boundary condition determined based on the actual operating environment of the wind farm and the design requirements of each component of the overall machine.

[0029] A wind turbine blade parameter determination device comprises:

[0030] An acquisition unit is configured to acquire a plurality of sets of new blade shape parameters that meet the position of the limit point of the blade aerodynamic shape optimization target and the shape boundary of the wind turbine blade.

[0031] An aerodynamic shape parameter determination unit is configured to process the plurality of sets of new blade shape parameters based on the wind turbine Bladed model, to obtain target blade aerodynamic shape parameters that meet the blade aerodynamic shape optimization target.

[0032] A data package determination unit is configured to obtain a blade aerodynamic-structure initial Bladed data package according to the target blade aerodynamic shape parameters and the initial blade structure attribute parameters.

[0033] A structure attribute parameter determination unit is configured to process the blade aerodynamic-structure initial Bladed data package based on the wind turbine Bladed model, to obtain target blade structure attribute parameters that meet the blade safety performance target and the weight boundary at the same time, the target blade structure attribute parameters including: mass distribution and stiffness distribution.

[0034] A wind turbine blade parameter determination unit is configured to use the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters as target wind turbine blade parameters.

[0035] A computer storage medium stores at least one instruction, which is executed by a processor to implement any wind turbine blade parameter determination method.

[0036] An electronic device, comprising: a memory and a processor;

[0037] The memory is configured to store at least one instruction;

[0038] The processor is configured to execute the at least one instruction to implement any one of the wind turbine blade parameter determination methods.

[0039] From the above technical solutions, the wind turbine blade parameter determination method and related device are disclosed, a plurality of sets of new blade shape parameters satisfying the limit point positions of the blade aerodynamic shape optimization target and the wind turbine blade shape boundary are obtained, the plurality of sets of new blade shape parameters are processed based on the wind turbine Bladed model, the target blade aerodynamic shape parameters satisfying the blade aerodynamic shape optimization target are obtained, the blade aerodynamic-structure initial Bladed data packet is obtained according to the target blade aerodynamic shape parameters and the initial blade structure attribute parameters, the blade aerodynamic-structure initial Bladed data packet is processed based on the wind turbine Bladed model, the target blade structure attribute parameters satisfying the blade safety performance target and the weight boundary are obtained, and the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters is taken as the target wind turbine blade parameters. In the application, the target blade aerodynamic shape parameters satisfy the blade aerodynamic shape optimization target, which can ensure that the wind turbine blade has excellent aerodynamic characteristics and realizes the balance of the aerodynamic load and the aerodynamic load; the target blade structure attribute parameters satisfy the blade safety performance requirements and the weight boundary, and realize the balance of the structural stability and the structural lightweight, so that the target wind turbine blade parameters composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters can keep the aerodynamic performance and the structural stability of the wind turbine blade under the low load operating condition. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by the disclosed drawings without creative labor for those skilled in the art.

[0041] Figure 1 A flow chart of the wind turbine blade parameter determination method disclosed in the embodiments of the present application;

[0042] Figure 2 A structural schematic diagram of the wind turbine blade parameter determination device disclosed in the embodiments of the present application;

[0043] Figure 3A structural schematic diagram of an electronic device disclosed in an embodiment of the present application. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0045] The embodiments of the present application disclose a wind turbine blade parameter determination method and related devices, target blade aerodynamic shape parameters meet blade aerodynamic shape optimization objectives, can ensure that the wind turbine blade has excellent aerodynamic characteristics, and balance of aerodynamic load and aerodynamic load is realized; target blade structure attribute parameters meet blade safety performance requirements and weight boundaries at the same time, and balance of structural stability and structural lightweight is realized, therefore, target wind turbine blade parameters composed of target blade aerodynamic shape parameters and target blade structure attribute parameters can make the blade maintain the aerodynamic performance and structural stability of the wind turbine blade under low load operating conditions.

[0046] Referring to Figure 1 The embodiments of the present application disclose a wind turbine blade parameter determination method flow chart, and the method comprises:

[0047] Step S101, obtaining a plurality of groups of new blade shape parameters meeting the limit point positions of the blade aerodynamic shape optimization objectives and the wind turbine blade shape boundaries.

[0048] In actual application, the blade aerodynamic shape optimization objectives and the wind turbine blade shape boundaries can be determined by coupling analysis of the key shape parameters of the wind turbine blade according to the power generation objectives and load requirements of the wind turbine generator.

[0049] The key shape parameters of the wind turbine blade include but are not limited to the blade length, the blade root joint circle diameter and the like.

[0050] Among them, the batch calculation of the blade shape parameters can be carried out based on the optimization design platform, and a plurality of groups of new blade shape parameters as the aerodynamic shape results are obtained. The optimization design platform in the present application is written by using the Matlab program.

[0051] Specifically, the limit point positions are set according to the blade aerodynamic shape optimization objectives and the wind turbine blade shape boundaries, the blade shape parameters are output by using the Matlab program based on the limit point positions, and a plurality of groups of new blade shape parameters meeting the limit point positions are obtained in batches, and each group of new blade shape parameters includes the chord length, the twist angle, the relative thickness, the blade shaft, the pre-bending, the back sweep and the like of the blade.

[0052] Step S102, processing the plurality of sets of new blade shape parameters based on the wind turbine Bladed model to obtain target blade aerodynamic shape parameters satisfying an optimization target of blade aerodynamic shape.

[0053] Bladed is a professional wind turbine modeling and load calculation software, which is widely used in the design, simulation and performance analysis of land and offshore wind turbines.

[0054] The process of establishing the wind turbine Bladed model includes:

[0055] According to the development requirements of the wind turbine, the key shape parameters of the blade (including the length of the blade, the diameter of the root section, etc.) are determined, and the initial wind turbine Bladed model is constructed by iterating the key shape parameters of the blade. Based on the initial blade shape parameters, the initial wind turbine Bladed model is optimized to obtain the wind turbine Bladed model.

[0056] In the wind turbine Bladed model, the core objective of iterative optimization of the key shape parameters of the blade is to balance the aerodynamic performance and structural performance by adjusting the aerodynamic shape parameters (such as chord length distribution, twist angle distribution, pre-bending, etc.) to construct the initial wind turbine Bladed model.

[0057] The constructed wind turbine Bladed model can be used for subsequent evaluation of blade aerodynamic performance.

[0058] Step S103, obtaining a blade aerodynamic-structural initial Bladed data package according to the target blade aerodynamic shape parameters and initial blade structural attribute parameters.

[0059] Specifically, the initial blade structural attribute parameters are obtained, which include but are not limited to the main beam / secondary beam, web, skin, core material, root reinforcement and other main structures.

[0060] According to the initial blade structural attribute parameters, the initial mass distribution and initial stiffness distribution in multiple directions of the blade are determined.

[0061] Using the target blade aerodynamic shape parameters and the initial mass distribution and initial stiffness distribution, a blade aerodynamic-structural initial Bladed data package is generated.

[0062] It should be noted that in the design of wind turbine blades, the mass distribution and stiffness distribution of the blade are the core parameters for describing the physical characteristics of the blade, which define the mechanical behavior of the blade in space. The mass distribution refers to the mass distribution of the blade at different positions, which may involve different cross-sectional masses along the spanwise direction (from the root to the tip). The stiffness distribution refers to the stiffness variation of the blade in the flapwise direction, edgewise direction and torsional direction.

[0063] The initial mass distribution and the initial stiffness distribution of the blade in multiple directions in the embodiment refer to the mass distribution and the stiffness distribution of the blade in the initial state.

[0064] Step S104, processing the blade aerodynamic-structure initial Bladed data package based on the wind turbine Bladed model to obtain target blade structure attribute parameters that meet the blade safety performance target and the weight boundary at the same time.

[0065] The target blade structure attribute parameters include the mass distribution and the stiffness distribution of the blade.

[0066] The determination process of the blade safety performance target and the weight boundary in the embodiment includes:

[0067] According to the development requirements of the wind turbine, the blade safety performance target and the weight boundary are obtained by performing structural layer optimization iteration.

[0068] It should be noted that the structural layer optimization iteration is a core technical link of the composite material structure design of the wind turbine blade, which refers to an iterative design process of minimizing the weight of the blade by systematically adjusting the layering sequence, angle, thickness and material combination of the fiber reinforced composite material under the premise of meeting the safety performance targets such as structural strength, stiffness and stability.

[0069] According to the development requirements of the wind turbine, the blade safety performance target and the weight boundary are obtained by performing structural layer optimization iteration under the multi-level collaborative design to balance the safety performance and lightweight of the blade.

[0070] The blade safety performance target and the weight boundary include the load boundary limit condition of the high load risk area, the blade weight boundary, the mass distribution boundary condition and the stiffness distribution boundary condition determined based on the actual operating environment of the wind farm and the design requirements of each component of the whole machine.

[0071] The high load risk area includes the blade root and the like.

[0072] Step S105, taking the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters as the target wind turbine blade parameters.

[0073] The target blade aerodynamic shape parameters in the embodiment are designed through targeted optimization, so that the target blade aerodynamic shape parameters fully meet the aerodynamic performance target, thereby ensuring that the wind power blade has excellent aerodynamic characteristics. The target blade structure attribute parameters are designed through multi-objective collaborative optimization, so that the target blade structure attribute parameters meet the blade safety performance requirements and weight boundary, thereby ensuring the stability of the blade structure. Based on this, the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters is taken as the final target wind power blade parameters, so that the aerodynamic performance and structural stability of the wind power blade are maintained at a low load level.

[0074] In conclusion, the present application discloses a wind power blade parameter determination method, a plurality of sets of new blade shape parameters meeting the limit point positions of the blade aerodynamic shape optimization target and the wind power blade shape boundary are obtained, the plurality of sets of new blade shape parameters are processed based on the wind turbine Bladed model, the target blade aerodynamic shape parameters meeting the blade aerodynamic shape optimization target are obtained, the blade aerodynamic-structure initial Bladed data package is obtained according to the target blade aerodynamic shape parameters and the initial blade structure attribute parameters, the blade aerodynamic-structure initial Bladed data package is processed based on the wind turbine Bladed model, the target blade structure attribute parameters meeting the blade safety performance target and the weight boundary are obtained, and the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters is taken as the target wind power blade parameters. In the present application, the target blade aerodynamic shape parameters meet the blade aerodynamic shape optimization target, so that the wind power blade has excellent aerodynamic characteristics, and the balance between the aerodynamic load and the aerodynamic load is achieved. The target blade structure attribute parameters meet the blade safety performance requirements and the weight boundary, so that the balance between the structural stability and the structural lightweight is achieved. Therefore, the target wind power blade parameters composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters can maintain the aerodynamic performance and the structural stability of the wind power blade at a low load operating condition.

[0075] In one embodiment, step S102 can specifically include:

[0076] (1) performing aerodynamic performance calculation on each set of new blade shape parameters based on the wind turbine Bladed model to obtain blade aerodynamic performance parameters, and performing overall performance evaluation on each set of new blade shape parameters to obtain wind turbine performance parameters.

[0077] The blade aerodynamic performance parameters include but are not limited to the power coefficient, the tip speed ratio, the stall characteristic result, etc.

[0078] The wind turbine performance parameters include but are not limited to the rotor speed, the thrust, the unit power, the annual power generation, etc.

[0079] The wind turbine Bladed model in the application is established based on key blade shape parameters determined according to the development requirements of the whole wind turbine, and the wind turbine Bladed model can be used for blade aerodynamic performance evaluation. In the embodiment, by inputting each group of new blade shape parameters into the wind turbine Bladed model, the corresponding blade aerodynamic performance parameters can be obtained.

[0080] In actual application, the aerodynamic performance calculation and whole machine performance evaluation can be completed by calling the GH-Bladed software.

[0081] (2) From the blade aerodynamic performance parameters and the wind turbine performance parameters, the aerodynamic layout result meeting the blade aerodynamic shape optimization target is selected as the target blade aerodynamic shape parameter.

[0082] In the embodiment, the blade aerodynamic performance parameters and the wind turbine whole machine performance parameters are coupled and matched with the blade aerodynamic shape optimization target respectively, and finally the target blade aerodynamic shape parameter meeting the double-target constraint is determined through iteration.

[0083] In one embodiment, the step S104 can specifically include:

[0084] The wind turbine Bladed model is used to batch process the blade aerodynamic-structure initial Bladed data package, and a plurality of groups of new blade structure characteristic parameters are obtained.

[0085] The wind turbine Bladed model is used to perform blade stability checking on each group of new blade structure characteristic parameters, and the target blade structure attribute parameter meeting the blade safety performance target and the weight boundary is selected.

[0086] In the embodiment, the wind turbine Bladed model is used to batch process the blade aerodynamic-structure initial Bladed data package, and a plurality of groups of new blade structure characteristic parameters are obtained. Each group of new blade structure characteristic parameters includes the mass distribution and the stiffness distribution in each direction.

[0087] The principle of batch processing the blade aerodynamic-structure initial Bladed data package by using the wind turbine Bladed model is that the parameterized modeling, automatic task scheduling and result post-processing are cooperated to realize efficient execution of multi-working condition simulation.

[0088] The content of performing blade stability checking on each group of new blade structure characteristic parameters by using the wind turbine Bladed model includes the blade weight, the blade high-load-bearing risk area load, the blade strain and deformation and the like.

[0089] Corresponding to the method embodiments, the application further discloses a wind turbine blade parameter determination device.

[0090] Referring to Figure 2 The embodiment of the application discloses a structure diagram of a wind turbine blade parameter determination device. The device can include:

[0091] The acquisition unit 201 is configured to acquire a plurality of sets of new blade shape parameters that satisfy the limit point positions of the blade aerodynamic shape optimization target and the wind turbine blade shape boundary.

[0092] In actual application, the wind turbine generator power generation target and the load demand can be coupled to analyze the key shape parameters of the wind turbine blade, so as to determine the blade aerodynamic shape optimization target and the wind turbine blade shape boundary.

[0093] The key shape parameters of the wind turbine blade include but are not limited to the blade length and the blade root joint circle diameter.

[0094] The plurality of sets of new blade shape parameters that are the aerodynamic shape results can be obtained by batch calculation of the blade shape parameters based on the optimization design platform. The optimization design platform in the application is programmed by using Matlab.

[0095] The acquisition unit 201 can be specifically configured to set the limit point positions according to the blade aerodynamic shape optimization target and the wind turbine blade shape boundary, output the blade shape parameters by using the Matlab program based on the limit point positions, and batch obtain a plurality of sets of new blade shape parameters that satisfy the limit point positions. Each set of new blade shape parameters includes the chord length, the twist angle, the relative thickness, the blade shaft, the pre-bending, the after-sweep and the like.

[0096] The aerodynamic shape parameter determination unit 202 is configured to process the plurality of sets of new blade shape parameters based on the wind turbine Bladed model, so as to obtain the target blade aerodynamic shape parameters that satisfy the blade aerodynamic shape optimization target.

[0097] In the wind turbine Bladed model, the core target of the iterative optimization of the key shape parameters of the blade is to realize the balance between the aerodynamic performance and the structural performance by adjusting the aerodynamic shape parameters (such as the chord length distribution, the twist angle distribution, the pre-bending and the like), so as to construct the initial wind turbine Bladed model.

[0098] The constructed wind turbine Bladed model can be used for subsequent blade aerodynamic performance evaluation.

[0099] The data packet determination unit 203 is configured to obtain the blade aerodynamic-structural initial Bladed data packet according to the target blade aerodynamic shape parameters and the initial blade structural attribute parameters.

[0100] The initial blade structural attribute parameters include but are not limited to the main / secondary beam, the web, the skin, the core material, the blade root reinforcement and the like.

[0101] It should be noted that in the wind turbine blade design, the mass distribution and the stiffness distribution of the blade are core parameters for describing the physical characteristics of the blade, which define the mechanical behavior of the blade in space. The mass distribution refers to the mass distribution of the blade at different positions, which may involve the mass of different cross sections along the spanwise direction (from the blade root to the blade tip). The stiffness distribution refers to the stiffness variation of the blade in the flapping direction, the edgewise direction and the torsional direction.

[0102] The structural attribute parameter determination unit 204 is configured to process the initial blade aerodynamic-structural Bladed data package based on the wind turbine Bladed model to obtain target blade structural attribute parameters that satisfy the blade safety performance target and the weight boundary at the same time, the target blade structural attribute parameters including: mass distribution and stiffness distribution.

[0103] The target blade structural attribute parameters include: mass distribution and stiffness distribution of the blade.

[0104] The determination process of the blade safety performance target and the weight boundary in the embodiment includes:

[0105] According to the overall development requirements of the wind turbine, the structural layer optimization iteration is performed to obtain the blade safety performance target and the weight boundary.

[0106] It should be noted that the structural layer optimization iteration is a core technical link of the composite material structure design of the wind turbine blade, which refers to an iterative design process of minimizing the weight of the blade by systematically adjusting the layering order, angle, thickness and material combination of the fiber reinforced composite material under the premise of meeting the safety performance targets such as structural strength, stiffness and stability.

[0107] According to the overall development requirements of the wind turbine, the structural layer optimization iteration is performed to realize the balance between the safety performance and the lightweight of the blade under the multi-level collaborative design, and the blade safety performance target and the weight boundary are obtained.

[0108] The blade safety performance target and the weight boundary include: the load boundary limit condition of the high load risk area, the blade weight boundary, the mass distribution boundary condition and the stiffness distribution boundary condition determined based on the actual operation environment of the wind farm and the design requirements of each component of the overall machine.

[0109] The wind turbine blade parameter determination unit 205 is configured to take the parameter set composed of the target blade aerodynamic shape parameters and the target blade structural attribute parameters as the target wind turbine blade parameters.

[0110] The target blade aerodynamic shape parameters in the embodiment are designed through targeted optimization, so that the target blade aerodynamic shape parameters fully meet the aerodynamic performance target, thereby ensuring that the wind power blade has excellent aerodynamic characteristics. The target blade structure attribute parameters are designed through multi-objective collaborative optimization, so that the target blade structure attribute parameters meet the blade safety performance requirements and weight boundary, thereby ensuring the stability of the blade structure. Based on this, the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters is taken as the final target wind power blade parameters, so that the aerodynamic performance and structural stability of the wind power blade are maintained at a low load level.

[0111] In conclusion, the wind power blade parameter determination device disclosed in the present application obtains a plurality of sets of new blade shape parameters that meet the limit point positions of the blade aerodynamic shape optimization target and the wind power blade shape boundary, processes the plurality of sets of new blade shape parameters based on the wind turbine Bladed model, obtains target blade aerodynamic shape parameters that meet the blade aerodynamic shape optimization target, obtains blade aerodynamic-structure initial Bladed data packets according to the target blade aerodynamic shape parameters and initial blade structure attribute parameters, processes the blade aerodynamic-structure initial Bladed data packets based on the wind turbine Bladed model, obtains target blade structure attribute parameters that meet the blade safety performance target and the weight boundary at the same time, and takes the parameter set composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters as target wind power blade parameters. In the present application, the target blade aerodynamic shape parameters meet the blade aerodynamic shape optimization target, which can ensure that the wind power blade has excellent aerodynamic characteristics and realizes the balance between aerodynamic load and aerodynamic load. The target blade structure attribute parameters meet the blade safety performance requirements and the weight boundary at the same time, and realize the balance between structural stability and structural lightweight, so that the target wind power blade parameters composed of the target blade aerodynamic shape parameters and the target blade structure attribute parameters can maintain the aerodynamic performance and structural stability of the wind power blade at a low load operating condition.

[0112] In one embodiment, the aerodynamic shape parameter determination unit 202 can be specifically used for:

[0113] performing aerodynamic performance calculation on each set of new blade shape parameters based on the wind turbine Bladed model to obtain blade aerodynamic performance parameters, and performing overall performance evaluation on each set of new blade shape parameters to obtain wind turbine performance parameters;

[0114] selecting, from the blade aerodynamic performance parameters and the wind turbine performance parameters, an aerodynamic layout result that meets the blade aerodynamic shape optimization target as target blade aerodynamic shape parameters.

[0115] In one embodiment, the wind power blade parameter determination device can further include:

[0116] A model establishing unit is configured to establish a wind turbine Bladed model.

[0117] The model establishing unit can be specifically configured to determine key blade shape parameters according to a wind turbine overall development requirement, and to construct an initial wind turbine Bladed model by iterating the key blade shape parameters.

[0118] The initial wind turbine Bladed model is optimized based on the initial blade shape parameters to obtain a wind turbine Bladed model.

[0119] In an embodiment, the data packet determining unit 203 can be specifically configured to:

[0120] Obtain initial blade structure attribute parameters;

[0121] Determine initial mass distribution and initial stiffness distribution in multiple directions of the blade according to the initial blade structure attribute parameters;

[0122] Generate a blade aerodynamic-structure initial Bladed data packet by using the target blade aerodynamic shape parameters and the initial mass distribution and initial stiffness distribution.

[0123] In an embodiment, the structure attribute parameter determining unit 204 can be specifically configured to:

[0124] Perform batch processing on the blade aerodynamic-structure initial Bladed data packet by using the wind turbine Bladed model to obtain a plurality of groups of new blade structure characteristic parameters;

[0125] Perform blade stability checking on each group of new blade structure characteristic parameters by using the wind turbine Bladed model, and filter out the target blade structure attribute parameters that meet both the blade safety performance target and the weight boundary.

[0126] The determination process of the blade safety performance target and the weight boundary includes:

[0127] Obtaining the blade safety performance target and the weight boundary by performing structure layer optimization iteration according to a wind turbine overall development requirement.

[0128] The blade safety performance target and the weight boundary include: a load boundary limit condition of a high load risk area, a blade weight boundary, a mass distribution boundary condition, and a stiffness distribution boundary condition, which are determined based on an actual operation environment of a wind farm and design requirements of each component of the overall machine.

[0129] It should be noted that the specific working principles of each component in the device embodiment can be found in the corresponding part of the method embodiment, which will not be described here again.

[0130] Corresponding to the above-mentioned embodiments, the present application further discloses a computer storage medium, which stores at least one instruction, and the at least one instruction is executed by a processor to implement the steps of the wind turbine blade parameter determination method embodiment.

[0131] The computer storage medium can be a tangible medium, which can contain or store a program for use by or in connection with an instruction execution system, apparatus, or device. The computer storage medium can be a machine-readable signal medium or a machine-readable storage medium. The computer storage medium can include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the above. More specific examples of the machine-readable storage medium will include one or more of an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above.

[0132] Corresponding to the above-mentioned embodiments, as shown in the Figure 3 structure diagram of the electronic device, the electronic device can include a processor 1 and a memory 2.

[0133] The processor 1 and the memory 2 complete mutual communication through a communication bus 3.

[0134] The processor 1 is configured to execute at least one instruction.

[0135] The memory 2 is configured to store at least one instruction.

[0136] The processor 1 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.

[0137] The memory 2 can include a high-speed RAM memory, and can also include a non-volatile memory, such as at least one disk memory.

[0138] The processor executes the at least one instruction to implement the steps of the wind turbine blade parameter determination method embodiment.

[0139] Finally, it should be noted that the terms "first", "second", and the like, herein do not denote any order, quantity, combination, or importance, but rather are used to distinguish one element from another, and are not intended to denote the presence of any such actual relationship or order. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0140] The various embodiments in the specification are described with progression in this order of description. Embodiments having the same or similar descriptions are referenced by the same reference numerals, and an overlapping description is not repeated.

[0141] The above description of disclosed embodiments provides enabling disclosure sufficient for one of ordinary skill in the art to practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for determining wind turbine blade parameters, characterized in that: include: Obtain multiple sets of new blade shape parameters that meet the blade aerodynamic shape optimization objectives and the position of the limiting points of the wind turbine blade shape boundary; Processing the multiple sets of new blade shape parameters based on a Bladed model of the wind turbine to obtain target blade aerodynamic shape parameters that meet the blade aerodynamic shape optimization goal; Obtaining a blade aerodynamic-structural initial Bladed data packet according to the target blade aerodynamic shape parameters and the initial blade structural attribute parameters; Processing the blade aerodynamic-structural initial Bladed data packet based on the wind turbine Bladed model to obtain target blade structural attribute parameters that simultaneously meet the blade safety performance target and weight boundary, the target blade structural attribute parameters including: mass distribution and stiffness distribution; A parameter set consisting of the target blade aerodynamic shape parameters and the target blade structural attribute parameters is used as target wind turbine blade parameters.

2. The method for determining wind turbine blade parameters according to claim 1, characterized in that: The processing of the multiple sets of new blade shape parameters based on the Bladed model of the wind turbine to obtain target blade aerodynamic shape parameters that meet the blade aerodynamic shape optimization goal includes: performing aerodynamic performance calculations on each set of new blade shape parameters based on the Bladed model of the wind turbine to obtain blade aerodynamic performance parameters, and performing overall machine performance evaluation on each set of new blade shape parameters to obtain wind turbine performance parameters; From the blade aerodynamic performance parameters and the wind turbine performance parameters, an aerodynamic layout result that meets the blade aerodynamic shape optimization target is screened out as the target blade aerodynamic shape parameter.

3. The method for determining wind turbine blade parameters according to claim 1 or 2, characterized in that: The process of establishing the Bladed model of the wind turbine generator system includes: Determine the key shape parameters of the blades according to the development requirements of the wind turbine generator system, and construct an initial Bladed model of the wind turbine generator system by iterating the key shape parameters of the blades; Based on the initial blade shape parameters, the initial wind turbine bladed model is optimized to obtain a wind turbine bladed model.

4. The method for determining wind turbine blade parameters according to claim 1 or 2, characterized in that: The process of determining the blade aerodynamic shape optimization target and the wind turbine blade shape boundary includes: According to the power generation target and load demand of the wind turbine generator set, the key shape parameters of the wind turbine blade are coupled and analyzed to determine the blade aerodynamic shape optimization target and the wind turbine blade shape boundary.

5. The method for determining wind turbine blade parameters according to claim 1, characterized in that: Obtaining a blade aerodynamic-structural initial Bladed data packet according to the target blade aerodynamic shape parameters and the initial blade structural attribute parameters includes: Obtaining initial blade structural attribute parameters; Determining the initial mass distribution and initial stiffness distribution of the blade in multiple directions according to the initial blade structural attribute parameters; The target blade aerodynamic shape parameters, the initial mass distribution, and the initial stiffness distribution are used to generate a blade aerodynamic-structural initial Bladed data packet.

6. The method for determining wind turbine blade parameters according to claim 1 or 5, characterized in that: The blade aerodynamic-structural initial Bladed data packet is processed based on the wind turbine Bladed model to obtain target blade structural attribute parameters that simultaneously meet blade safety performance targets and weight limits, including: Batch processing the initial blade aerodynamic-structural Bladed data packets of the blades is performed using the wind turbine Bladed model to obtain multiple sets of new blade structural characteristic parameters; The wind turbine Bladed model is used to perform blade stability verification on each set of new blade structural characteristic parameters, and the target blade structural attribute parameters that simultaneously meet the blade safety performance target and weight limit are screened out.

7. The method for determining wind turbine blade parameters according to claim 1, characterized in that: The process of determining the blade safety performance target and weight limit includes: Based on the overall development requirements of wind turbines, the blade safety performance targets and weight limits are obtained through iterative optimization of structural layers. Among them, the blade safety performance targets and weight boundaries include: load boundary restrictions, blade weight boundaries, mass distribution boundary conditions, and stiffness distribution boundary conditions in high-load risk areas determined based on the actual operating environment of the wind farm and the design requirements of each component of the whole machine.

8. A device for determining parameters of a wind turbine blade, characterized in that: include: An acquisition unit, configured to acquire multiple sets of new blade shape parameters that meet the blade aerodynamic shape optimization target and the position of limiting points of the wind turbine blade shape boundary; an aerodynamic shape parameter determination unit, configured to process the plurality of new blade shape parameters based on a Bladed model of the wind turbine generator system to obtain target blade aerodynamic shape parameters that meet a blade aerodynamic shape optimization target; a data packet determining unit, configured to obtain a blade aerodynamic-structural initial Bladed data packet according to the target blade aerodynamic shape parameters and the initial blade structural attribute parameters; a structural attribute parameter determination unit, configured to process the blade aerodynamic-structural initial Bladed data packet based on the wind turbine bladed model to obtain target blade structural attribute parameters that simultaneously meet the blade safety performance target and weight boundary, wherein the target blade structural attribute parameters include mass distribution and stiffness distribution; The wind turbine blade parameter determination unit is configured to use a parameter set consisting of the target blade aerodynamic shape parameters and the target blade structural attribute parameters as target wind turbine blade parameters.

9. A computer storage medium, characterized in that The computer storage medium stores at least one instruction, and when the at least one instruction is executed by the processor, the method for determining wind turbine blade parameters according to any one of claims 1 to 7 is implemented.

10. An electronic device, characterized in that: The electronic device includes: a memory and a processor; The memory is used to store at least one instruction; The processor is configured to execute the at least one instruction to implement the method for determining wind turbine blade parameters according to any one of claims 1 to 7.

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