Flexible photovoltaic support load analogue simulation analysis method

Abstract

The invention provides a flexible photovoltaic support load analogue simulation analysis method, and belongs to the technical field of analogue simulation, and the method comprises the steps: 1, obtaining the design structure parameters and material parameters of a flexible photovoltaic support, and determining the material attributes of the flexible photovoltaic support; 2, factors influencing the safe use and the service life of the flexible photovoltaic support are determined, and a load simulation model of the flexible photovoltaic support under different influence factor conditions is constructed; 3, loading simulation is carried out through the load simulation model, and performance parameters of the flexible photovoltaic support under different influence factor conditions are obtained; and 4, determining potential safety hazards and design defects of the flexible photovoltaic support according to the performance parameters, and performing optimization. The problems that according to a flexible photovoltaic support load analogue simulation analysis method, the characteristics of materials used by a photovoltaic support are not considered, an accurate simulation result cannot be provided, meanwhile, the influence of environmental factors is ignored, and the accuracy and reliability of flexible photovoltaic support load analogue simulation analysis are reduced are solved.

Description

Technical Field

[0001] The present invention relates to the field of simulation technology, and in particular to a flexible photovoltaic bracket load simulation analysis method. Background Art

[0002] With the continuous development of renewable energy technology, photovoltaic power generation, as an efficient and environmentally friendly form of energy, has become increasingly widely used.

[0003] However, traditional flexible photovoltaic bracket load simulation and analysis methods usually do not take into account factors such as the characteristics and strength of the materials used in the photovoltaic bracket, and cannot provide accurate simulation results. At the same time, they ignore the influence of environmental factors. For example, natural conditions such as temperature and wind speed will affect the load-bearing capacity of the photovoltaic bracket, reducing the accuracy and reliability of the flexible photovoltaic bracket load simulation and analysis.

[0004] Therefore, the present invention proposes a flexible photovoltaic bracket load simulation analysis method. Summary of the Invention

[0005] The present invention provides a flexible photovoltaic bracket load simulation and analysis method to solve the problem that traditional flexible photovoltaic bracket load simulation and analysis methods in the prior art usually do not take into account factors such as the characteristics and strength of the materials used in the photovoltaic bracket, and cannot provide accurate simulation results. At the same time, it ignores the influence of environmental factors, such as temperature, wind speed and other natural conditions, which will affect the bearing capacity of the photovoltaic bracket, thereby reducing the accuracy and reliability of the flexible photovoltaic bracket load simulation and analysis.

[0006] In one aspect, the present invention provides a method for simulating and analyzing loads on a flexible photovoltaic support, comprising: Step 1: Obtain the design structural parameters and material parameters of the flexible photovoltaic bracket, and determine the material properties of the flexible photovoltaic bracket based on the structural parameters and material parameters; Step 2: Determine the factors that affect the safe use and life of the flexible photovoltaic bracket, and build a load simulation model of the flexible photovoltaic bracket under different influencing factors based on material properties; Step 3: Perform multiple loading simulations using the load simulation model to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors; Step 4: Determine the potential safety hazards and design defects of the flexible photovoltaic bracket based on performance parameters, and conduct analysis, improvement and optimization.

[0007] According to a flexible photovoltaic support load simulation analysis method provided by the present invention, the design structural parameters and material parameters of the flexible photovoltaic support are obtained, and the material properties of the flexible photovoltaic support are determined according to the structural parameters and material parameters, including: Obtain application scenarios and usage requirements of the flexible photovoltaic bracket, and determine material specifications of the flexible photovoltaic bracket based on the application scenarios and usage requirements; Determining the design structure parameters and material parameters of the flexible photovoltaic bracket according to the material specifications of the flexible photovoltaic bracket; Constructing a mathematical model based on the design structural parameters and material parameters of the flexible photovoltaic bracket in combination with the finite element method; Obtaining the structural behavior of the flexible photovoltaic support and the interaction between the flexible photovoltaic support and the environment according to the mathematical model; The material properties of the flexible photovoltaic support are determined according to the structural behavior of the flexible photovoltaic support and the interaction between the flexible photovoltaic support and the environment.

[0008] According to a flexible photovoltaic support load simulation analysis method provided by the present invention, after constructing a mathematical model based on the design structural parameters and material parameters of the flexible photovoltaic support and combining the finite element method, the method includes: Acquiring environmental factor data of the flexible photovoltaic bracket according to the design structure parameters and material parameters of the flexible photovoltaic bracket; Meshing the flexible photovoltaic bracket and creating a three-dimensional finite element model, and determining the stress distribution and deformation of the flexible photovoltaic bracket based on the finite element model; Determining the material stress of each cell according to the stress distribution and deformation of the flexible photovoltaic support and in combination with the properties of each material; The model output results are analyzed based on the material stress of each cell and in combination with the solver, and the performance of the flexible photovoltaic bracket is evaluated based on the analysis results.

[0009] According to a flexible photovoltaic bracket load simulation analysis method provided by the present invention, factors affecting the safe use and life of the flexible photovoltaic bracket are determined, and a load simulation model of the flexible photovoltaic bracket under different influencing factors is constructed based on material properties, including: Obtaining records of safe use and life of the flexible photovoltaic support, determining a correlation between safe use and life based on the records, and determining factors that affect the safe use and life of the flexible photovoltaic support based on the correlation; Determine the parameter data of the flexible photovoltaic bracket according to the material properties of the flexible photovoltaic bracket and obtain various external load conditions; Set boundary conditions for the flexible photovoltaic bracket according to design requirements and determine the displacement of the flexible photovoltaic bracket when subjected to different loads; According to the various external load conditions, the displacement of the flexible photovoltaic bracket when bearing different loads and the structural characteristics of the flexible photovoltaic bracket, a load simulation model of the flexible photovoltaic bracket under different influencing factors is constructed.

[0010] According to a flexible photovoltaic support load simulation analysis method provided by the present invention, the correlation between safe use and life is determined based on the records, including: Obtain the safe use and life records of flexible photovoltaic brackets based on maintenance records and inspection reports; Arrange the records into a data table according to a preset format, and analyze the data using statistical analysis tools; According to the analysis results, the average service life of each flexible photovoltaic bracket and the differences between flexible photovoltaic brackets of different types and installation locations are obtained; Obtaining failure modes of the flexible photovoltaic bracket according to the differences between the flexible photovoltaic brackets of different types and installation positions; The correlation between safe use and life span is determined based on the average service life of each flexible photovoltaic bracket and the existing failure modes.

[0011] According to a load simulation analysis method for a flexible photovoltaic bracket provided by the present invention, multiple loading simulations are performed through a load simulation model to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors, including: Before each loading simulation, the load simulation model is initialized; Set different loading conditions for the flexible photovoltaic bracket load simulation model according to actual working conditions and influencing factors, and add corresponding load effects in the model; For each set of loading conditions, the flexible photovoltaic bracket model is simulated and calculated, and multiple parameters are controlled; The simulation results under each set of loading conditions are extracted to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors.

[0012] According to a flexible photovoltaic bracket load simulation analysis method provided by the present invention, potential safety hazards and design defects of the flexible photovoltaic bracket are determined based on performance parameters, and analysis, improvement and optimization are performed, including: Determine the functions of each part of the flexible photovoltaic bracket and the coordination between the parts based on the performance parameters; The structure and working principle of the flexible photovoltaic support are obtained according to the functions of the various parts and the coordination between the various parts; Determine potential safety hazards and design defects of the flexible photovoltaic bracket based on the structure and working principle of the flexible photovoltaic bracket and in combination with physical testing; Determine the scope and extent of impact based on the potential safety hazards and design defects, determine the corresponding solution strategy based on the scope and extent of impact, and analyze, improve and optimize based on the solution strategy.

[0013] According to a load simulation analysis method for a flexible photovoltaic support provided by the present invention, before obtaining the design structural parameters and material parameters of the flexible photovoltaic support and determining the material properties of the flexible photovoltaic support according to the structural parameters and material parameters, the method further includes: Determine the key load-bearing structural components based on the design structure of the flexible photovoltaic support and obtain the load-damage equivalent conversion parameters of the key load-bearing structural components; Determine the effective load range and failure load range of key load-bearing structural components based on load-damage equivalent conversion parameters; Determine the maximum theoretical load of the critical load structural component according to the end value of the effective load interval and the beginning value of the failure load interval; Determine the loading rate and loading intensity under dynamic loading conditions and static loading conditions based on the theoretical maximum load; Determine the data response characteristics of the key load structural component based on the loading rate, loading intensity and the load frequency response function of the key load structural component; Based on the data response characteristics, the load data collection period for the key load-bearing structural parts is set, and the load data collection range for the key load-bearing structural parts is set; Acquire the collected data of each collection point in the collection range in different perception directions, and use the direction error as the perception error factor to correct the collected data; Determine the membership index corresponding to the collected data of each collection point in different perception directions; According to the membership index, the data collected by the collection point in different perception directions are effectively evaluated, and the data collected by each collection point are statistically analyzed in the spatial domain of effective data based on the evaluation results; The statistical results are quantified and the optimal data collection point for each key load-bearing structural component is determined based on the quantified data.

[0014] Compared with the prior art, the present invention has the following advantages: A load simulation model is constructed based on the material properties of the flexible photovoltaic bracket and the factors that affect the safe use and life of the flexible photovoltaic bracket, and multiple loading simulations are carried out to determine the performance parameters under different influencing factors and optimize the defects. It can consider factors such as the characteristics and strength of the materials used in the photovoltaic bracket and provide accurate simulation results. At the same time, it takes into account the impact of environmental factors on the bearing capacity of the photovoltaic bracket, thereby improving the accuracy and reliability of the load simulation analysis of the flexible photovoltaic bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 1 is a flow chart of a method for simulating and analyzing loads on a flexible photovoltaic support provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of a process for determining the material properties of a flexible photovoltaic bracket based on the structural parameters and material parameters of the flexible photovoltaic bracket provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0018] Example 1: The embodiment of the present invention provides a flexible photovoltaic bracket load simulation analysis method, such as Figure 1 As shown, the method mainly includes the following steps: Step 1: Obtain the design structural parameters and material parameters of the flexible photovoltaic bracket, and determine the material properties of the flexible photovoltaic bracket based on the structural parameters and material parameters; Step 2: Determine the factors that affect the safe use and life of the flexible photovoltaic bracket, and build a load simulation model of the flexible photovoltaic bracket under different influencing factors based on material properties; Step 3: Perform multiple loading simulations using the load simulation model to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors; Step 4: Determine the potential safety hazards and design defects of the flexible photovoltaic bracket based on performance parameters, and conduct analysis, improvement and optimization.

[0019] In this embodiment, the material properties of the flexible photovoltaic support include: elastic modulus, density, thermal conductivity, yield strength, and Poisson's ratio.

[0020] In this embodiment, the multiple performance parameters include stress, strain, deflection, and stiffness.

[0021] In this embodiment, potential safety hazards of the flexible photovoltaic bracket may include: material aging, loose components, and electrical safety issues.

[0022] In this embodiment, the design defects of the flexible photovoltaic bracket may be: uneven force on the photovoltaic modules, welding quality problems, and improper material selection.

[0023] The beneficial effects of the above technical solution are: constructing a load simulation model through the material properties of the flexible photovoltaic bracket and the factors affecting the safe use and life of the flexible photovoltaic bracket, and performing multiple loading simulations to determine the performance parameters under different influencing factors and optimize the defects. It can consider factors such as the characteristics and strength of the materials used in the photovoltaic bracket and provide accurate simulation results. At the same time, it takes into account the impact of environmental factors on the bearing capacity of the photovoltaic bracket, thereby improving the accuracy and reliability of the load simulation analysis of the flexible photovoltaic bracket.

[0024] Example 2: Based on Example 1, the embodiment of the present invention obtains the design structure parameters and material parameters of the flexible photovoltaic bracket, and determines the material properties of the flexible photovoltaic bracket according to the structure parameters and material parameters, such as Figure 2 Shown, including: S01: Obtain application scenarios and usage requirements of the flexible photovoltaic bracket, and determine material specifications of the flexible photovoltaic bracket according to the application scenarios and usage requirements; S02: Determining design structural parameters and material parameters of the flexible photovoltaic bracket according to the material specifications of the flexible photovoltaic bracket; S03: Constructing a mathematical model based on the design structural parameters and material parameters of the flexible photovoltaic bracket in combination with the finite element method; S04: obtaining the structural behavior of the flexible photovoltaic support and the interaction between the flexible photovoltaic support and the environment according to the mathematical model; S05: Determine the material properties of the flexible photovoltaic support according to the structural behavior of the flexible photovoltaic support and the interaction between the flexible photovoltaic support and the environment.

[0025] In this embodiment, the flexible photovoltaic support is a photovoltaic support system that can adjust its shape according to changes in terrain and weather to achieve optimal lighting effects.

[0026] In this embodiment, the design structural parameters of the flexible photovoltaic support include: column material, beam spacing, beam cross-sectional shape, and diagonal brace arrangement.

[0027] In this embodiment, the material parameters of the flexible photovoltaic support include: strength and stiffness, mass density, corrosion resistance, and electrical conductivity.

[0028] In this embodiment, the interaction between the flexible photovoltaic bracket and the environment refers to, for example: the environmental conditions (such as climate, temperature, humidity, etc.) in which the flexible photovoltaic bracket is located will affect the efficiency and life of the photovoltaic panel. For example, high temperature may cause the performance of the panel to decrease, while low temperature will increase the resistance of the panel.

[0029] In this embodiment, the structural behavior of the flexible photovoltaic support includes: stiffness design, strength design, and adaptability.

[0030] In this embodiment, the material properties of the flexible photovoltaic support include: elastic modulus, density, thermal conductivity, yield strength, and Poisson's ratio.

[0031] The beneficial effects of the above technical solution are: obtaining the design structure parameters and material parameters of the flexible photovoltaic bracket and determining the material properties of the flexible photovoltaic bracket can better determine the nature and behavior of the photovoltaic bracket. At the same time, by determining the material properties of the photovoltaic bracket, key indicators such as the strength, stiffness, and durability of the photovoltaic bracket can be obtained, thereby evaluating the safety of the photovoltaic bracket under different loads and environmental conditions.

[0032] Example 3: Based on Example 2, the embodiment of the present invention constructs a mathematical model based on the design structural parameters and material parameters of the flexible photovoltaic bracket and in combination with the finite element method, including: Acquiring environmental factor data of the flexible photovoltaic bracket according to the design structure parameters and material parameters of the flexible photovoltaic bracket; Meshing the flexible photovoltaic bracket and creating a three-dimensional finite element model, and determining the stress distribution and deformation of the flexible photovoltaic bracket based on the finite element model; Determining the material stress of each cell according to the stress distribution and deformation of the flexible photovoltaic support and in combination with the properties of each material; The model output results are analyzed based on the material stress of each cell and in combination with the solver, and the performance of the flexible photovoltaic bracket is evaluated based on the analysis results.

[0033] In this embodiment, the design structural parameters of the flexible photovoltaic support include: column material, beam spacing, beam cross-sectional shape, and diagonal brace arrangement.

[0034] In this embodiment, the material parameters of the flexible photovoltaic support include: strength and stiffness, mass density, corrosion resistance, and electrical conductivity.

[0035] In this embodiment, meshing the flexible photovoltaic bracket and creating a three-dimensional finite element model means dividing the three-dimensional structure of the entire photovoltaic bracket into many small units through numerical calculation methods, and establishing a numerical model at each grid node to better understand and analyze its mechanical behavior under different loads and boundary conditions.

[0036] In this embodiment, in the finite element model, each cell is assumed to be a tiny "particle" with a certain shape and size. All physical quantities of the particle (such as displacement, strain, temperature, etc.) can be represented by a set of numerical values, which are used to calculate the stress and strain of the cell.

[0037] The beneficial effects of the above technical solution are: by determining the material stress of each cell based on the stress distribution and deformation of the flexible photovoltaic bracket and combining the properties of each material, the stress state of the photovoltaic bracket can be better understood. Furthermore, the results of the model output are analyzed and the performance of the flexible photovoltaic bracket is evaluated, which can ensure that the flexible photovoltaic bracket can operate safely and reliably under various stress conditions.

[0038] Example 4: Based on Example 3, the embodiment of the present invention determines the factors that affect the safe use and life of the flexible photovoltaic bracket, and constructs a load simulation model of the flexible photovoltaic bracket under different influencing factors based on material properties, including: Obtaining records of safe use and life of the flexible photovoltaic support, determining a correlation between safe use and life based on the records, and determining factors that affect the safe use and life of the flexible photovoltaic support based on the correlation; Determine the parameter data of the flexible photovoltaic bracket according to the material properties of the flexible photovoltaic bracket and obtain various external load conditions; Set boundary conditions for the flexible photovoltaic bracket according to design requirements and determine the displacement of the flexible photovoltaic bracket when subjected to different loads; According to the various external load conditions, the displacement of the flexible photovoltaic bracket when bearing different loads and the structural characteristics of the flexible photovoltaic bracket, a load simulation model of the flexible photovoltaic bracket under different influencing factors is constructed.

[0039] In this embodiment, the parameter data of the flexible photovoltaic support includes: material type, cross-sectional shape, and thickness.

[0040] In this embodiment, the various external load conditions include: wind speed, temperature, and gravitational acceleration.

[0041] In this embodiment, the boundary conditions include: constraining support points and limiting deformation range.

[0042] In this embodiment, the load simulation model of the flexible photovoltaic support is used to predict and evaluate the loads that the photovoltaic support may bear under different working conditions.

[0043] The beneficial effects of the above technical solution are: determining the factors that affect the safe use and life of the flexible photovoltaic bracket, and combining the material properties to construct a load simulation model of the flexible photovoltaic bracket under different influencing factors. By considering the impact of different factors on the photovoltaic bracket, the design can be made more scientific and reasonable, avoiding excessive reliance on experience or simplified models that lead to the design of the photovoltaic bracket not meeting actual needs, thereby reducing safety risks. At the same time, the reliability of the model is improved to ensure accurate evaluation of the load capacity of the flexible photovoltaic bracket.

[0044] Example 5: Based on Example 4, this embodiment of the present invention determines the correlation between safe use and lifespan based on the record, including: Obtain the safe use and life records of flexible photovoltaic brackets based on maintenance records and inspection reports; Arrange the records into a data table according to a preset format, and analyze the data using statistical analysis tools; According to the analysis results, the average service life of each flexible photovoltaic bracket and the differences between flexible photovoltaic brackets of different types and installation locations are obtained; Obtaining failure modes of the flexible photovoltaic bracket according to the differences between the flexible photovoltaic brackets of different types and installation positions; The correlation between safe use and life span is determined based on the average service life of each flexible photovoltaic bracket and the existing failure modes.

[0045] In this embodiment, the data table includes information such as date, type of photovoltaic bracket, installation location, and usage time and life of each bracket.

[0046] In this embodiment, the statistical analysis tools include: frequency distribution table, histogram, and box plot.

[0047] In this embodiment, the failure modes of the flexible photovoltaic support include: Insufficient structural strength: Due to wind load, snow load or other external loads, the support structure may be damaged or deformed, thus affecting the safe installation and use of photovoltaic modules.

[0048] Cable damage: Cables are important components connecting photovoltaic modules and inverters. If the cables are damaged during use, the photovoltaic modules may not work properly and may even cause safety problems such as fire.

[0049] Failure of electrical connection: The electrical connection is the key part between the photovoltaic module and the inverter. If the electrical connection is loose, broken, oxidized, etc., it will affect the normal operation of the photovoltaic module and may even cause safety hazards such as circuit short circuit.

[0050] In this embodiment, the correlation between the safe use and life of the flexible photovoltaic bracket means that long-term overload operation or improper maintenance may also lead to premature aging and damage, thereby shortening its service life.

[0051] The beneficial effect of the above technical solution is: determining the correlation between safe use and life according to the average service life of each flexible photovoltaic bracket and the existing failure mode, which can greatly avoid accidents caused by exceeding the safe load or life limit of the photovoltaic bracket.

[0052] Example 6: Based on Example 5, the embodiment of the present invention performs multiple loading simulations through a load simulation model to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors, including: Before each loading simulation, the load simulation model is initialized; Set different loading conditions for the flexible photovoltaic bracket load simulation model according to actual working conditions and influencing factors, and add corresponding load effects in the model; For each set of loading conditions, the flexible photovoltaic bracket model is simulated and calculated, and multiple parameters are controlled; The simulation results under each set of loading conditions are extracted to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors.

[0053] In this embodiment, initializing the load simulation model refers to performing a series of settings and parameter adjustments on the model before starting the simulation process, such as defining the structure and components of the model, including the model's geometry, material type, force analysis, and boundary conditions.

[0054] In this embodiment, the working conditions of the flexible photovoltaic support include: operating temperature range, wind load capacity, and earthquake intensity.

[0055] In this embodiment, the influencing factors include: environmental influencing factors and climate influencing factors.

[0056] In this embodiment, setting different loading conditions for the flexible photovoltaic bracket load simulation model means allocating corresponding load conditions to the model, such as deadweight, force, and temperature, according to different usage environments, wind speeds, climate conditions, and other factors.

[0057] In this embodiment, the parameters include: time step and accuracy.

[0058] In this embodiment, the multiple performance parameters include stress, strain, deflection, and stiffness.

[0059] The beneficial effects of the above technical solution are: by performing multiple loading simulations through the load simulation model and simulating different working conditions and combinations, the bearing capacity and stability of the photovoltaic power station can be more accurately evaluated. Furthermore, multiple performance parameters of the flexible photovoltaic bracket under different influencing factors are obtained, which can provide quantitative data and reveal potential problems, thereby improving the load capacity of the flexible photovoltaic bracket.

[0060] Example 7: Based on Example 6, the embodiment of the present invention determines the potential safety hazards and design defects of the flexible photovoltaic bracket according to the performance parameters, and performs analysis, improvement and optimization, including: Determine the functions of each part of the flexible photovoltaic bracket and the coordination between the parts based on the performance parameters; The structure and working principle of the flexible photovoltaic support are obtained according to the functions of the various parts and the coordination between the various parts; Determine potential safety hazards and design defects of the flexible photovoltaic bracket based on the structure and working principle of the flexible photovoltaic bracket and in combination with physical testing; Determine the scope and extent of impact based on the potential safety hazards and design defects, determine the corresponding solution strategy based on the scope and extent of impact, and analyze, improve and optimize based on the solution strategy.

[0061] In this embodiment, the functions of the various parts of the flexible photovoltaic support include: Column: used to support the entire bracket system, usually made of high-strength steel.

[0062] Diagonal brace: connects the columns and the diagonal cables to disperse the load.

[0063] Stay cables: bear and transfer the loads generated by photovoltaic panels to the ground or other fixed structures.

[0064] Support: Located at the bottom of the support, used to transfer the load of the support system to the foundation.

[0065] Electrical system: including inverters, controllers, etc., responsible for converting the direct current generated by photovoltaic panels into alternating current output.

[0066] In this embodiment, the coordination mode of each part may be: The columns bear the main vertical loads and are connected to the inclined cables through diagonal braces, making the support system a stable structural system.

[0067] The diagonal braces and the inclined cables act together on the columns to achieve distributed load-bearing of the photovoltaic panels.

[0068] In this embodiment, the flexible photovoltaic support is a technology that automatically adjusts the angle according to the trajectory of the sun to maximize the power generation efficiency of the photovoltaic module.

[0069] In this embodiment, the physical test refers to, for example, tensile, compression and bending tests, impact tests, and temperature cycle tests.

[0070] In this embodiment, potential safety hazards of the flexible photovoltaic bracket may include: material aging, loose components, and electrical safety issues.

[0071] In this embodiment, the design defects of the flexible photovoltaic bracket may be: uneven force on the photovoltaic modules, welding quality problems, and improper material selection.

[0072] The beneficial effects of the above technical solution are: by determining the potential safety hazards and design defects of the flexible photovoltaic bracket through performance parameters, and conducting analysis, improvement and optimization, the safety of the photovoltaic bracket can be improved, thereby ensuring the safety and reliability of the photovoltaic bracket during use. At the same time, the economy of the photovoltaic power station is improved, and losses and increased maintenance costs caused by failures are avoided, thereby improving the economic benefits of the photovoltaic power station.

[0073] Example 8: Based on Example 7, the embodiment of the present invention further includes: obtaining the design structural parameters and material parameters of the flexible photovoltaic support and determining the material properties of the flexible photovoltaic support according to the structural parameters and material parameters. Determine the key load-bearing structural components based on the design structure of the flexible photovoltaic support and obtain the load-damage equivalent conversion parameters of the key load-bearing structural components; Determine the effective load range and failure load range of key load-bearing structural components based on load-damage equivalent conversion parameters; Determine the maximum theoretical load of the critical load structural component according to the end value of the effective load interval and the beginning value of the failure load interval; Determine the loading rate and loading intensity under dynamic loading conditions and static loading conditions based on the theoretical maximum load; Determine the data response characteristics of the key load structural component based on the loading rate, loading intensity and the load frequency response function of the key load structural component; Based on the data response characteristics, the load data collection period for the key load-bearing structural parts is set, and the load data collection range for the key load-bearing structural parts is set; Acquire the collected data of each collection point in the collection range in different perception directions, and use the direction error as the perception error factor to correct the collected data; Determine the membership index corresponding to the collected data of each collection point in different perception directions; According to the membership index, the data collected by the collection point in different perception directions are effectively evaluated, and the data collected by each collection point are statistically analyzed in the spatial domain of effective data based on the evaluation results; The statistical results are quantified and the optimal data collection point for each key load-bearing structural component is determined based on the quantified data.

[0074] In this embodiment, the key load-bearing structural members of the flexible photovoltaic support are components used to support and connect photovoltaic panels and components, such as beams and diagonal braces.

[0075] In this embodiment, the load-damage equivalent conversion parameters of the critical load-bearing structural component refer to the conversion of the actual load into the effective load value borne by the structural component, such as elastic modulus, yield strength, ultimate stress and failure stress.

[0076] In this embodiment, the effective load range refers to the maximum design load that the photovoltaic bracket can withstand during installation and use.

[0077] In this embodiment, the failure load range refers to the maximum stress level at which a critical load-bearing structural component may be damaged or lose its bearing capacity under extreme conditions.

[0078] In this embodiment, the load frequency response function of the key load-bearing structural component is a mathematical model that describes the dynamic response relationship between the deformation and stress of the structure under different frequency loads.

[0079] In this embodiment, the data response characteristic refers to the reaction or behavior of the structure when subjected to external loads or environmental changes under specific conditions.

[0080] In this embodiment, the membership index of a collection point is a measure used to measure the relationship between a point and multiple sets.

[0081] The beneficial effects of the above technical solution are: effectively evaluating the collected data of the collection points in different perception directions based on the membership index, performing spatial domain statistics of the collected data of each collection point, and determining the optimal data collection point for each key load structure, which can ensure the accuracy of the data and improve the reliability of the data.

[0082] Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented using software plus a necessary general-purpose hardware platform, or of course, hardware. Based on this understanding, the essence of the above technical solution, or the portion that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a magnetic disk, or an optical disk, and includes a number of instructions for causing a computer device (such as a personal computer, server, or network device) to execute the methods described in each embodiment or certain portions of the embodiments.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A flexible photovoltaic support load simulation analysis method, characterized in that: include: Step 1: Obtain the design structural parameters and material parameters of the flexible photovoltaic bracket, and determine the material properties of the flexible photovoltaic bracket based on the structural parameters and material parameters; Step 2: Determine the factors that affect the safe use and life of the flexible photovoltaic bracket, and build a load simulation model of the flexible photovoltaic bracket under different influencing factors based on material properties; Step 3: Perform multiple loading simulations using the load simulation model to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors; Step 4: Determine the potential safety hazards and design defects of the flexible photovoltaic bracket based on performance parameters, and conduct analysis, improvement and optimization.

2. The flexible photovoltaic support load simulation analysis method according to claim 1 is characterized in that: Obtain the design structural parameters and material parameters of the flexible photovoltaic bracket, and determine the material properties of the flexible photovoltaic bracket based on the structural parameters and material parameters, including: Obtain application scenarios and usage requirements of the flexible photovoltaic bracket, and determine material specifications of the flexible photovoltaic bracket based on the application scenarios and usage requirements; Determining the design structure parameters and material parameters of the flexible photovoltaic bracket according to the material specifications of the flexible photovoltaic bracket; Constructing a mathematical model based on the design structural parameters and material parameters of the flexible photovoltaic bracket in combination with the finite element method; Obtaining the structural behavior of the flexible photovoltaic support and the interaction between the flexible photovoltaic support and the environment according to the mathematical model; The material properties of the flexible photovoltaic support are determined according to the structural behavior of the flexible photovoltaic support and the interaction between the flexible photovoltaic support and the environment.

3. The flexible photovoltaic support load simulation analysis method according to claim 1 is characterized in that: After constructing a mathematical model based on the design structural parameters and material parameters of the flexible photovoltaic bracket and combining the finite element method, it includes: Acquiring environmental factor data of the flexible photovoltaic bracket according to the design structure parameters and material parameters of the flexible photovoltaic bracket; Meshing the flexible photovoltaic bracket and creating a three-dimensional finite element model, and determining the stress distribution and deformation of the flexible photovoltaic bracket based on the finite element model; Determining the material stress of each cell according to the stress distribution and deformation of the flexible photovoltaic support and in combination with the properties of each material; The material stress of each cell is analyzed in combination with the solver to analyze the output of the model, and the performance of the flexible photovoltaic bracket is evaluated based on the analysis results.

4. The flexible photovoltaic support load simulation analysis method according to claim 1 is characterized in that: Determine the factors that affect the safe use and life of flexible photovoltaic brackets, and build a load simulation model of flexible photovoltaic brackets under different influencing factors based on material properties, including: Obtaining records of safe use and life of the flexible photovoltaic support, determining a correlation between safe use and life based on the records, and determining factors that affect the safe use and life of the flexible photovoltaic support based on the correlation; Determine the parameter data of the flexible photovoltaic bracket according to the material properties of the flexible photovoltaic bracket and obtain various external load conditions; Set boundary conditions for the flexible photovoltaic bracket according to design requirements and determine the displacement of the flexible photovoltaic bracket when subjected to different loads; According to the various external load conditions, the displacement of the flexible photovoltaic bracket when bearing different loads and the structural characteristics of the flexible photovoltaic bracket, a load simulation model of the flexible photovoltaic bracket under different influencing factors is constructed.

5. The flexible photovoltaic support load simulation analysis method according to claim 4 is characterized in that: Determine the correlation between safe use and life span based on the records, including: Obtain the safe use and life records of flexible photovoltaic brackets based on maintenance records and inspection reports; Arrange the records into a data table according to a preset format, and analyze the data using statistical analysis tools; According to the analysis results, the average service life of each flexible photovoltaic bracket and the differences between flexible photovoltaic brackets of different types and installation locations are obtained; Obtaining failure modes of the flexible photovoltaic bracket according to the differences between the flexible photovoltaic brackets of different types and installation positions; The correlation between safe use and life span is determined based on the average service life of each flexible photovoltaic bracket and the existing failure modes.

6. The flexible photovoltaic support load simulation analysis method according to claim 1, characterized in that: Through multiple loading simulations using the load simulation model, we can obtain a number of performance parameters of the flexible photovoltaic bracket under different influencing factors, including: Before each loading simulation, the load simulation model is initialized; Set different loading conditions for the flexible photovoltaic bracket load simulation model according to actual working conditions and influencing factors, and add corresponding load effects in the model; For each set of loading conditions, the flexible photovoltaic bracket model is simulated and calculated, and multiple parameters are controlled; The simulation results under each set of loading conditions are extracted to obtain multiple performance parameters of the flexible photovoltaic bracket under different influencing factors.

7. The flexible photovoltaic support load simulation analysis method according to claim 1, characterized in that: Identify potential safety hazards and design flaws of flexible photovoltaic brackets based on performance parameters, and conduct analysis, improvement and optimization, including: Determine the functions of each part of the flexible photovoltaic bracket and the coordination between the parts based on the performance parameters; The structure and working principle of the flexible photovoltaic support are obtained according to the functions of the various parts and the coordination between the various parts; Determine potential safety hazards and design defects of the flexible photovoltaic bracket based on the structure and working principle of the flexible photovoltaic bracket and in combination with physical testing; Determine the scope and extent of impact based on the potential safety hazards and design defects, determine the corresponding solution strategy based on the scope and extent of impact, and analyze, improve and optimize based on the solution strategy.

8. The flexible photovoltaic support load simulation analysis method according to claim 1, characterized in that: Before obtaining the design structural parameters and material parameters of the flexible photovoltaic support and determining the material properties of the flexible photovoltaic support based on the structural parameters and material parameters, the following steps are also included: Determine the key load-bearing structural components based on the design structure of the flexible photovoltaic support and obtain the load-damage equivalent conversion parameters of the key load-bearing structural components; Determine the effective load range and failure load range of key load-bearing structural components based on load-damage equivalent conversion parameters; Determine the maximum theoretical load of the critical load structural component according to the end value of the effective load interval and the beginning value of the failure load interval; Determine the loading rate and loading intensity under dynamic loading conditions and static loading conditions based on the theoretical maximum load; Determine the data response characteristics of the key load structural component based on the loading rate, loading intensity and the load frequency response function of the key load structural component; Based on the data response characteristics, the load data collection period for the key load-bearing structural parts is set, and the load data collection range for the key load-bearing structural parts is set; Acquire the collected data of each collection point in the collection range in different perception directions, and use the direction error as the perception error factor to correct the collected data; Determine the membership index corresponding to the collected data of each collection point in different perception directions; According to the membership index, the data collected by the collection point in different perception directions are effectively evaluated, and the data collected by each collection point are statistically analyzed in the spatial domain of effective data based on the evaluation results; The statistical results are quantified and the optimal data collection point for each key load-bearing structural component is determined based on the quantified data.

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