A method, apparatus, device, and readable storage medium for analyzing the heat dissipation of photovoltaic modules.

Abstract

This application discloses a method, apparatus, device, and readable storage medium for analyzing the heat dissipation of photovoltaic modules. The method includes: acquiring module influence parameters (excluding the module temperature to be solved), material influence parameters (excluding the cell temperature to be solved), and external influence parameters of the photovoltaic module; constructing photovoltaic module energy balance equations and cell energy balance equations based on the acquired influence parameters, the module temperature to be solved, and the cell temperature, and solving for the module temperature and cell temperature; and calculating the module's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity using the module temperature, cell temperature, and material influence parameters. The technical solution disclosed in this application constructs energy balance equations for the module and cells, solves for the module temperature and cell temperature, and calculates the module's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity, thereby enabling the analysis of the module's heat dissipation performance, providing a reference for module design, and facilitating the improvement of module heat dissipation performance.

Description

Technical Field

[0001] This application relates to the field of photovoltaic module technology, and more specifically, to a photovoltaic module heat dissipation analysis method, apparatus, equipment, and readable storage medium. Background Technology

[0002] Photovoltaic modules are very sensitive to temperature. As the temperature rises, the open-circuit voltage of the photovoltaic module decreases and the short-circuit current increases, resulting in a decrease in the module's output power and conversion efficiency.

[0003] Currently, the temperature of photovoltaic (PV) modules is mainly predicted based on environmental parameters of the modules already installed in PV power plants, thus providing a basis for predicting the power generation capacity of the PV power plants. There is little analysis of the heat dissipation performance of PV modules, which has a significant impact on the temperature of the PV modules, thereby affecting their output power and conversion efficiency.

[0004] In summary, how to analyze the heat dissipation performance of photovoltaic modules to provide a reference for the design of module materials and structures, thereby facilitating the improvement of the heat dissipation performance of photovoltaic modules, is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a method, apparatus, device and readable storage medium for analyzing the heat dissipation performance of photovoltaic modules, so as to provide a reference for the design of module materials and structure, thereby facilitating the improvement of the heat dissipation performance of photovoltaic modules.

[0006] To achieve the above objectives, this application provides the following technical solution:

[0007] A method for analyzing the heat dissipation of photovoltaic modules, comprising:

[0008] Obtain the photovoltaic module's influence parameters other than the module temperature to be solved, the material influence parameters of the photovoltaic module other than the cell temperature to be solved, and the external influence parameters; the influence parameters are those that affect the heat dissipation of the photovoltaic module.

[0009] Based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters, the photovoltaic module energy balance equation and the cell energy balance equation are constructed.

[0010] The module temperature and the cell temperature are obtained by solving the energy balance equation of the photovoltaic module and the energy balance equation of the cell.

[0011] Using the component temperature, the cell temperature, and the material influence parameters, the component's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity are calculated.

[0012] Preferably, the component influencing parameters include component installation angle, component area, component temperature coefficient, and component conversion efficiency under AM1.5 conditions;

[0013] The material-affecting parameters include front plate reflectivity, back plate reflectivity, film reflectivity, cell reflectivity, front plate refractive index, back plate refractive index, film refractive index, cell refractive index, front plate thickness, back plate thickness, film thickness, cell thickness, front plate heat transfer coefficient, back plate heat transfer coefficient, front plate thermal conductivity, back plate thermal conductivity, and film thermal conductivity.

[0014] The external influence parameters include spectral energy distribution data under AM1.5 conditions, ambient temperature, and Boltzmann constant.

[0015] Preferably, based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters, the photovoltaic module energy balance equation and the cell energy balance equation are constructed, including:

[0016] Construct the energy balance equation for the photovoltaic module:

[0017] P 组件吸收能量 =P 正面辐射散热 +P 背面辐射散热 +P 正面对流散热 +P 背面对流散热 +P 导热量 +P 组件输出能量 ;

[0018] Construct the energy balance equation for the battery cell:

[0019] P 电池吸收能量 =P 电池总功率 +P 导热量 ;

[0020] Among them, P 组件吸收能量 =∫G AM1.5 (λ)*(ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ,P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ,P 背面辐射散热 =∫σ*ε 背板 *A*(T PV4 -T a 4 )dλ,P 正面对流散热 =h 前板 *A*(T PV -T a ), P 背面对流散热 =h 背板 *A*(T PV -T a ), P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )], P 电池吸收能量 =∫G AM1.5 (λ)*(ε 电池 )dλ,P 电池总功率 =η cell *S 电池 P 组件吸收能量 P represents the energy absorbed by the photovoltaic module from environmental radiation. 正面辐射散热 P represents the heat dissipation energy radiated from the front of the photovoltaic module. 背面辐射散热 P represents the heat dissipation energy radiated from the back of the photovoltaic module. 正面对流散热 P represents the front-side convective heat dissipation energy of the photovoltaic module. 背面对流散热 P represents the back-side convection heat dissipation energy of the photovoltaic module. 导热量 P is the heat conduction of the photovoltaic module. 组件输出能量 For the photovoltaic module to output energy, G AM1.5 (λ) represents the spectral energy distribution data under the AM1.5 condition, ε 前板 For front panel absorption rate, R1 is the reflectivity of the front panel, n1 is the refractive index of the front panel, d1 is the thickness of the front panel, λ is the wavelength, θ is the mounting angle of the component, and ε 背板 For backplate absorption rate, R2 is the reflectivity of the backplate, n2 is the refractive index of the backplate, d2 is the thickness of the backplate, and ε 胶膜 For film absorption rate, R3 is the reflectivity of the adhesive film, n3 is the refractive index of the adhesive film, d3 is the thickness of the adhesive film, and ε 电池 For the cell absorption rate, R4 is the reflectivity of the solar cell, n4 is the refractive index of the solar cell, d4 is the thickness of the solar cell, σ is the Boltzmann constant, A is the area of ​​the module, and T PV Let T be the temperature of the component to be solved. a h represents the ambient temperature. 前板 h is the heat transfer coefficient of the front plate. 背板m1 is the thermal conductivity of the backplate, m2 is the thermal conductivity of the frontplate, m3 is the thermal conductivity of the adhesive film, and T is the thermal conductivity of the backplate. C Let η0 be the temperature of the solar cell to be solved, η0 be the conversion efficiency of the module under AM1.5 conditions, α be the temperature coefficient of the module, and P be the temperature coefficient of the module. 电池吸收能量 For the solar cells to absorb energy, P 电池总功率 η represents the total power of the solar cells. cell For cell efficiency, S 电池 This represents the total area of ​​the solar cells.

[0021] Preferably, the module's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity are calculated using the module temperature, the cell temperature, and the material influence parameters, including:

[0022] Using P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ, calculate the front radiative heat dissipation energy of the photovoltaic module;

[0023] Using P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4 )dλ, calculate the heat dissipation energy radiated from the back of the photovoltaic module;

[0024] Using P 正面对流散热 =h 前板 *A*(T PV -T a ), calculate the convective heat dissipation energy on the front side of the photovoltaic module;

[0025] Using P 背面对流散热 =h 背板 *A*(T PV -T a ), calculate the convective heat dissipation energy on the back of the photovoltaic module;

[0026] use Calculate the heat conduction of the photovoltaic module.

[0027] Preferably, after calculating the front radiative heat dissipation energy, the back radiative heat dissipation energy, the front convective heat dissipation energy, the back convective heat dissipation energy, and the thermal conductivity of the photovoltaic module, the method further includes:

[0028] An energy distribution diagram is constructed based on the front radiative heat dissipation energy, the back radiative heat dissipation energy, the front convective heat dissipation energy, the back convective heat dissipation energy, and the thermal conductivity of the photovoltaic module.

[0029] Preferred options also include:

[0030] Using P 组件吸收能量 =∫G AM1.5 (λ) * (ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ, calculate the energy absorbed by the photovoltaic module from environmental radiation;

[0031] Using P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )], calculate the output energy of the photovoltaic module.

[0032] Preferably, after obtaining the module temperature and the cell temperature by using the photovoltaic module energy balance equation and the cell energy balance equation, the method further includes:

[0033] Output the component temperature and the cell temperature.

[0034] A photovoltaic module heat dissipation analysis device, comprising:

[0035] The acquisition module is used to acquire the photovoltaic module's influence parameters other than the module temperature to be solved, the material influence parameters of the photovoltaic module other than the cell temperature to be solved, and the external influence parameters; the influence parameters are those that affect the heat dissipation of the photovoltaic module.

[0036] The module is used to construct the photovoltaic module energy balance equation and the cell energy balance equation based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters.

[0037] The solution module is used to solve for the module temperature and the cell temperature using the photovoltaic module energy balance equation and the cell energy balance equation.

[0038] The calculation module is used to calculate the component's radiative heat dissipation energy, convective heat dissipation energy, thermal conductivity, and output energy using the component temperature, the cell temperature, and the material influence parameters.

[0039] A photovoltaic module heat dissipation analysis device, comprising:

[0040] Memory, used to store computer programs;

[0041] A processor, configured to execute the computer program to implement the steps of the photovoltaic module heat dissipation analysis method as described in any of the preceding claims.

[0042] A readable storage medium storing a computer program that, when executed by a processor, implements the steps of the photovoltaic module heat dissipation analysis method as described in any of the preceding claims.

[0043] This application provides a method, apparatus, device, and readable storage medium for analyzing the heat dissipation of photovoltaic modules. The method includes: acquiring module influence parameters (excluding the module temperature to be solved), material influence parameters (excluding the cell temperature to be solved), and external influence parameters of the photovoltaic module; the influence parameters are those that affect the heat dissipation of the photovoltaic module; constructing photovoltaic module energy balance equations and cell energy balance equations based on the module influence parameters, the module temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters; solving for the module temperature and cell temperature using the photovoltaic module energy balance equations and cell energy balance equations; and calculating the module radiative heat dissipation energy, module convective heat dissipation energy, and module conductive heat dissipation energy using the module temperature, cell temperature, and material influence parameters.

[0044] The technical solution disclosed in this application obtains the component influence parameters, material influence parameters, and external influence parameters, and constructs the photovoltaic module energy balance equation and the cell energy balance equation accordingly. The module temperature and cell temperature are then obtained by solving these equations. Subsequently, the module temperature, cell temperature, and material influence parameters are used to calculate the module's radiative heat dissipation energy, convective heat dissipation energy, and conductive heat dissipation energy, thereby analyzing the heat dissipation performance of the photovoltaic module. This process allows for the analysis of the impact of different materials or structural designs on the module's heat dissipation performance, providing a reference for the design and fabrication of photovoltaic module materials and structural design. This facilitates the improvement of the photovoltaic module's heat dissipation performance, reducing the impact of heat on the photovoltaic module and increasing its conversion efficiency and output power. Attached Figure Description

[0045] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0046] Figure 1A flowchart of a photovoltaic module heat dissipation analysis method provided in this application embodiment;

[0047] Figure 2 This is a schematic diagram of the photovoltaic module structure and energy exchange provided in the embodiments of this application;

[0048] Figure 3 A flowchart for calculating heat dissipation energy and theoretical component temperature provided in the embodiments of this application;

[0049] Figure 4 Energy distribution diagrams of various components provided in embodiments of this application;

[0050] Figure 5 This is a schematic diagram of the structure of a photovoltaic module heat dissipation analysis device provided in an embodiment of this application;

[0051] Figure 6 This is a schematic diagram of the structure of a photovoltaic module heat dissipation analysis device provided in an embodiment of this application. Detailed Implementation

[0052] The core of this application is to provide a method, apparatus, device, and readable storage medium for analyzing the heat dissipation performance of photovoltaic modules, so as to provide a reference for the design of module materials and structures, thereby facilitating the improvement of the heat dissipation performance of photovoltaic modules.

[0053] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0054] See Figure 1 and Figure 2 ,in, Figure 1 A flowchart of a photovoltaic module heat dissipation analysis method provided in an embodiment of this application is shown. Figure 2 This application provides a schematic diagram illustrating the structure and energy exchange of a photovoltaic module according to an embodiment of the present application. An embodiment of the present application provides a photovoltaic module heat dissipation analysis method, which may include:

[0055] S11: Obtain the photovoltaic module's influence parameters other than the module temperature to be solved, the material influence parameters of the photovoltaic module other than the cell temperature to be solved, and the external influence parameters; the influence parameters are those that affect the heat dissipation of the photovoltaic module.

[0056] In this application, when performing heat dissipation analysis of photovoltaic modules, the following parameters can be obtained first: Module influence parameters, excluding the module temperature to be determined, are those parameters that affect the overall heat dissipation of the photovoltaic module. Furthermore, material influence parameters, excluding the cell temperature to be determined, can be obtained. These are the parameters that affect the heat dissipation of the materials contained in the photovoltaic module, including the front panel, encapsulant film, cells, and backsheet. Additionally, external influence parameters can be obtained, which are the parameters that affect the heat dissipation of the photovoltaic module from external environments.

[0057] S12: Based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters, construct the photovoltaic module energy balance equation and the cell energy balance equation.

[0058] The heat dissipation analysis of photovoltaic modules includes the heat dissipation power between the module and the external environment, and the theoretical calculation of the module temperature at a specific temperature. The structure and energy exchange process of photovoltaic modules are simplified as follows: Figure 2 As shown, a photovoltaic module, from top to bottom, can include a front panel, encapsulating film, solar cells, encapsulating film, and back panel. The front panel is transparent and can be made of glass, etc., while the encapsulating film can be EVA (ethylene vinyl acetate copolymer), etc. Both the front and back sides of the photovoltaic module absorb energy from the environment and release energy through heat exchange with the environment. Specifically, energy exchange mainly includes the energy absorbed by the environment, the energy dissipated by the module through radiation, the energy dissipated by the module through heat conduction and convection, and the energy output by the module. By comparing and analyzing these energy components with the module temperature and the solar cell temperature, the module structure / materials can be evaluated and compared.

[0059] Based on step S11, the photovoltaic module energy balance equation and the cell energy balance equation can be constructed according to the obtained module influence parameters other than the module temperature to be solved, the material influence parameters in the photovoltaic module other than the cell temperature to be solved, the external influence parameters, the module temperature to be solved, and the cell temperature to be solved.

[0060] The photovoltaic module energy balance equation is the equation that balances the energy absorbed by the photovoltaic module from the environment with the energy released through heat exchange with the environment. The solar cell energy balance equation is the equation that balances the energy absorbed by the solar cell with the energy output by the solar cell.

[0061] S13: Solve the module temperature and cell temperature using the photovoltaic module energy balance equation and the cell energy balance equation.

[0062] After constructing the energy balance equations for photovoltaic modules and solar cells, since only the module temperature and solar cell temperature are unknowns, while the other influencing parameters are known, the constructed energy balance equations can be used to solve for the module temperature and solar cell temperature. This allows for the calculation of the heat dissipation energy corresponding to the materials contained in the photovoltaic module, facilitating the analysis of the impact of different materials or structural designs (such as material thickness and surface shape) on the heat dissipation performance of the photovoltaic module. This, in turn, provides direction for the design and fabrication of photovoltaic module materials and the design of the module structure.

[0063] S14: Calculate the module's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity energy using the module temperature, cell temperature, and material influence parameters.

[0064] After obtaining the module temperature and cell temperature, the obtained module temperature, cell temperature, and material influence parameters (excluding cell temperature) acquired in step S11 can be used to calculate the module's radiative heat dissipation energy, convective heat dissipation energy, and conductive heat dissipation energy. These are all material-related heat dissipation energy values, i.e., the energy values ​​that the materials contained in the photovoltaic module affect the heat dissipation performance of the photovoltaic module. In other words, the material-related heat dissipation energy values ​​corresponding to the materials contained in the photovoltaic module can be calculated through the above method, realizing the analysis and calculation of the heat dissipation energy of the photovoltaic module.

[0065] The above methods can be used to replace materials in photovoltaic modules. Alternatively, the relevant structure, shape, and physicochemical properties of the materials can be modified according to the material influence parameters to change the material influence parameters. The corresponding energy can be calculated according to steps S11-S14, thereby analyzing the impact of different materials or different structural designs on the heat dissipation performance of photovoltaic modules. This provides direction for the design optimization of photovoltaic module materials and module structure, thereby improving the heat dissipation performance of the manufactured photovoltaic modules, reducing the impact of photovoltaic module heat dissipation on the conversion efficiency and power generation of photovoltaic modules, and improving the conversion efficiency and power generation efficiency of photovoltaic modules.

[0066] As explained above, module temperature and cell temperature are only one aspect of photovoltaic module heat dissipation analysis, not the final output. This application calculates the module's heat dissipation based on the calculated module and cell temperatures to evaluate the module's structural design, particularly the heat dissipation effect of the back-side heat dissipation material or structure. Furthermore, designers can optimize and improve the physicochemical properties of relevant materials, such as absorptivity, layer thickness, and heat transfer coefficient, or material shape, such as protrusions or fin structures, based on the calculated heat dissipation of key components of the module, such as radiative and convective heat dissipation energy. This allows for the selection of a superior design by comparing the radiative and convective heat dissipation energy under different conditions.

[0067] The technical solution disclosed in this application obtains the component influence parameters, material influence parameters, and external influence parameters, and constructs the photovoltaic module energy balance equation and the cell energy balance equation accordingly. The module temperature and cell temperature are then obtained by solving these equations. Subsequently, the module temperature, cell temperature, and material influence parameters are used to calculate the module's radiative heat dissipation energy, convective heat dissipation energy, and conductive heat dissipation energy, thereby analyzing the heat dissipation performance of the photovoltaic module. This process allows for the analysis of the impact of different materials or structural designs on the module's heat dissipation performance, providing a reference for the design and fabrication of photovoltaic module materials and structural design. This facilitates the improvement of the photovoltaic module's heat dissipation performance, reducing the impact of heat on the photovoltaic module and increasing its conversion efficiency and output power.

[0068] This application provides a photovoltaic module heat dissipation analysis method, in which the module's influencing parameters may include the module's installation angle, module area, module temperature coefficient, and module conversion efficiency under AM1.5 conditions.

[0069] Material-related parameters may include front panel reflectivity, back panel reflectivity, film reflectivity, cell reflectivity, front panel refractive index, back panel refractive index, film refractive index, cell refractive index, front panel thickness, back panel thickness, film thickness, cell thickness, front panel heat transfer coefficient, back panel heat transfer coefficient, front panel thermal conductivity, back panel thermal conductivity, and film thermal conductivity.

[0070] External influencing parameters may include spectral energy distribution data under AM1.5 conditions, ambient temperature, and Boltzmann constant.

[0071] In this application, in addition to the component temperature T to be solved... PV External component influence parameters may include component installation angle θ, component area A, component temperature coefficient α, and component conversion efficiency η0 under AM1.5 conditions.

[0072] Except for the cell temperature T to be solved CExternal material influence parameters may include front panel reflectivity R1, back panel reflectivity R2, encapsulant film reflectivity R3, cell reflectivity R4, front panel refractive index n1, back panel refractive index n2, encapsulant film refractive index n3, cell refractive index n4, front panel thickness d1, back panel thickness d2, encapsulant film thickness d3, cell thickness d4, and front panel heat transfer coefficient h. 前板 Backplate heat transfer coefficient h 背板 The thermal conductivity of the front panel is m1, the thermal conductivity of the back panel is m2, and the thermal conductivity of the adhesive film is m3.

[0073] External influencing parameters include spectral energy distribution data G under AM1.5 conditions. AM1.5 (λ), ambient temperature T a And the Boltzmann constant σ. Through external influencing parameters, it can be seen that this application considers the entire spectrum of energy. Based on the different wavelengths absorbed or reflected by different materials, the material formulation can be adjusted to enable the material to block or convert light of different wavelengths, thereby optimizing and improving the heat dissipation of the component.

[0074] See Figure 3 This document illustrates a flowchart for calculating heat dissipation energy and theoretical module temperature according to an embodiment of this application. The photovoltaic module heat dissipation analysis method provided in this embodiment constructs photovoltaic module energy balance equations and cell energy balance equations based on module influence parameters, module temperature to be solved, material influence parameters, cell temperature to be solved, and external influence parameters. This method may include:

[0075] Constructing the energy balance equation for photovoltaic modules:

[0076] P 组件吸收能量 =P 正面辐射散热 +P 背面辐射散热 +P 正面对流散热 +P 背面对流散热 +P 导热量 +P 组件输出能量 ;

[0077] Constructing the energy balance equation for solar cells:

[0078] P 电池吸收能量 =P 电池总功率 +P 导热量 ;

[0079] Among them, P 组件吸收能量 =∫G AM1.5 (λ)*(ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ,P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -Ta 4 )dλ,P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4 )dλ,P 正面对流散热 =h 前板 *A*(T PV -T a ), P 背面对流散热 =h 背板 *A*(T PV -T a ), P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )], P 电池吸收能量 =∫G AM1.5 (λ)*(ε 电池 )dλ,P 电池总功率 =η cell *S 电池 P 组件吸收能量 P represents the energy absorbed by photovoltaic modules from environmental radiation. 正面辐射散热 P represents the heat dissipation energy radiated from the front of the photovoltaic module. 背面辐射散热 P is the heat dissipation energy radiated from the back of the photovoltaic module. 正面对流散热 For the front-side convective heat dissipation energy of photovoltaic modules, P 背面对流散热 For the back-side convection heat dissipation energy of photovoltaic modules, P 导热量 For heat conduction of photovoltaic modules, P 组件输出能量 To output energy for photovoltaic modules, G AM1 .5(λ) represents the spectral energy distribution data under AM1.5 conditions, ε 前板 For front panel absorption rate, R1 is the front panel reflectivity, n1 is the front panel refractive index, d1 is the front panel thickness, λ is the wavelength, θ is the component mounting angle, and ε is the component thickness. 背板 For backplate absorption rate, R2 is the backplate reflectivity, n2 is the backplate refractive index, d2 is the backplate thickness, and ε 胶膜 For film absorption rate, R3 is the reflectivity of the film, n3 is the refractive index of the film, d3 is the thickness of the film, and ε 电池 For the cell absorption rate, R4 is the reflectivity of the solar cell, n4 is the refractive index of the solar cell, d4 is the thickness of the solar cell, σ is the Boltzmann constant, A is the area of ​​the module, and T is the thickness of the solar cell. PV Let T be the component temperature to be solved. a For ambient temperature, h 前板h is the heat transfer coefficient of the front plate. 背板 m1 is the thermal conductivity of the backplate, m2 is the thermal conductivity of the frontplate, m3 is the thermal conductivity of the adhesive film, and T is the thermal conductivity of the backplate. C Let η0 be the cell temperature to be solved, η0 be the conversion efficiency of the module under AM1.5 conditions, α be the temperature coefficient of the module, and P be the cell temperature. 电池吸收能量 For the solar cells to absorb energy, P 电池总功率 η represents the total power of the solar cells. cell For cell efficiency, S 电池 This represents the total area of ​​the solar cells.

[0080] In this application, the photovoltaic module energy balance equation constructed based on the module influence parameters, the module temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters is specifically as follows: P 组件吸收能量 =P 正面辐射散热 +P 背面辐射散热 +P 正面对流散热 +P 背面对流散热 +P 导热量 +P 组件输出能量 .

[0081] Among them, P 组件吸收能量 P represents the energy absorbed by photovoltaic modules from environmental radiation. 组件吸收能量 =∫G AM1.5 (λ)*(ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ。 ε 前板 For front panel absorption rate, λ is the wavelength, ε 背板 For backplate absorption rate, ε 胶膜 For film absorption rate, Because there are encapsulant films between the front panel and the cells of a photovoltaic module, and between the back panel and the cells, the encapsulant film absorption rate is calculated as twice the encapsulant film absorption rate when used in the module's energy absorption calculation. Specifically, this means the absorption rate of the encapsulant film located between the front panel and the cells, and the absorption rate of the encapsulant film located between the back panel and the cells, ε. 电池 For the cell absorption rate, As can be seen from the aforementioned calculations of the absorptivity of various materials in the photovoltaic module, the absorptivity of the materials in this application is related to the module installation angle, wavelength, etc., and is not an inherent parameter of the material. Therefore, the accuracy of the material absorptivity can be improved, thereby improving the accuracy of heat dissipation analysis. 正面辐射散热 P represents the heat dissipation energy radiated from the front of the photovoltaic module. 背面辐射散热 To dissipate heat from the back of a photovoltaic module via radiation, according to Holf's law of thermal radiation, the reflectivity and absorptivity of an object in thermal equilibrium are numerically identical; therefore, P 正面辐射散热and P 背面辐射散热 The absorption rate of the corresponding material can be used for calculation; specifically, P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ,P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4 )dλ。 P 导热量 For conducting heat to photovoltaic modules, P 组件输出能量 For photovoltaic modules to output energy, P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )).

[0082] In this application, the energy balance equation for the solar cell is constructed as follows: P 电池吸收能量 =P 电池总功率 +P 导热量 Among them, P 电池吸收能量 For the solar cells to absorb energy, P 电池吸收能量 =∫G AM1.5 (λ)*(ε 电池 )dλ,P 电池总功率 P represents the total power of the solar cells. 电池总功率 =η cell *S 电池 η cell For cell efficiency, S 电池 This represents the total area of ​​the solar cells.

[0083] It should be noted that in the above energy balance equations for photovoltaic modules and solar cells, P... 组件吸收能量 P 正面辐射散热 P 背面辐射散热 P 正面对流散热 P 背面对流散热 P 导热量 P 组件输出能量 P 电池吸收能量 and P 电池总功率 The units are the same, both being watts (W).

[0084] In the aforementioned energy balance equations for photovoltaic modules and solar cells, only the module temperature and cell temperature are unknowns; all other parameters are known. Therefore, the module temperature T can be obtained by solving the aforementioned energy balance equations. PV and cell temperature T C This is so that a heat dissipation analysis of the photovoltaic module can be performed accordingly.

[0085] This application provides a photovoltaic module heat dissipation analysis method that uses module temperature, cell temperature, and material influence parameters to calculate the module's radiative heat dissipation energy, convective heat dissipation energy, and conductive heat dissipation energy. The method may include:

[0086] Using P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ, calculate the front radiative heat dissipation energy of the photovoltaic module;

[0087] Using P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4 )dλ, calculate the heat dissipation energy radiated from the back of the photovoltaic module;

[0088] Using P 正面对流散热 =h 前板 *A*(T PV -T a ), calculate the convective heat dissipation energy on the front side of the photovoltaic module;

[0089] Using P 背面对流散热 =h 背板 *A*(T PV -T a ), calculate the convective heat dissipation energy at the back of the photovoltaic module;

[0090] use Calculate the heat conduction of the photovoltaic module.

[0091] The module temperature T is obtained by solving the photovoltaic module energy balance equation and the cell energy balance equation constructed above. PV and cell temperature T C Subsequently, when calculating the module's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity energy using module temperature, cell temperature, and material influence parameters, P can be specifically used. 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ is used to calculate the front radiative heat dissipation energy of a photovoltaic module, utilizing P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4)dλ is used to calculate the heat dissipation energy radiated from the back of the photovoltaic module, using P 正面对流散热 =h 前板 *A*(T PV -T a ) Calculate the convective heat dissipation energy on the front side of the photovoltaic module, using P 背面对流散热 =h 背板 *A*(T PV -T a ) Calculate the convective heat dissipation energy at the back of the photovoltaic module, using Calculate the heat conduction of the photovoltaic module.

[0092] The above method calculates the front radiative heat dissipation energy, back radiative heat dissipation energy, front convective heat dissipation energy, back convective heat dissipation energy, and thermal conductivity of a photovoltaic module based on material influence parameters. This facilitates material analysis, and the corresponding front radiative heat dissipation energy, back radiative heat dissipation energy, front convective heat dissipation energy, back convective heat dissipation energy, and thermal conductivity of the photovoltaic module can be calculated by changing the material type and structure. This allows for the analysis of the impact of different material types and structures on the heat dissipation performance of the photovoltaic module, providing a reference for the optimized design of photovoltaic modules.

[0093] The photovoltaic module heat dissipation analysis method provided in this application embodiment, after calculating the front radiative heat dissipation energy, the back radiative heat dissipation energy, the front convective heat dissipation energy, the back convective heat dissipation energy, and the thermal conductivity of the photovoltaic module, may further include:

[0094] An energy distribution diagram is constructed based on the front radiative heat dissipation energy, the back radiative heat dissipation energy, the front convective heat dissipation energy, the back convective heat dissipation energy, and the thermal conductivity of the photovoltaic module.

[0095] In this application, after calculating the radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity of the photovoltaic module using the module temperature, cell temperature, and material influence parameters, an energy distribution map can be constructed based on the front radiative heat dissipation energy, back radiative heat dissipation energy, front convective heat dissipation energy, back convective heat dissipation energy, and thermal conductivity of the photovoltaic module. In this energy distribution map, the horizontal axis can be the energy type, and the vertical axis can be the energy value, thereby facilitating relevant personnel to intuitively and clearly obtain the energy status of different energy types.

[0096] The photovoltaic module heat dissipation analysis method provided in this application embodiment may further include:

[0097] Using P 组件吸收能量 =∫G AM1.5 (λ)*(ε 前板 +ε背板 +2ε 胶膜 +ε 电池 )dλ, calculate the energy absorbed by the photovoltaic module from environmental radiation;

[0098] Using P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -Ta)], calculate the output energy of the photovoltaic module.

[0099] In this application, after constructing the above-mentioned photovoltaic module energy balance equation and cell energy balance equation, and solving for the module temperature and cell temperature, P can also be used. 组件吸收能量 =∫GAM 1.5 (λ)*(ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ, calculate the energy absorbed by the photovoltaic module from environmental radiation, and can be used with P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )] Calculate the output energy of photovoltaic modules, so that relevant personnel can obtain information on the energy absorbed and output of photovoltaic modules.

[0100] Of course, the energy distribution diagram can also be constructed by combining the front radiative heat dissipation energy of the photovoltaic module, the back radiative heat dissipation energy of the photovoltaic module, the front convective heat dissipation energy of the photovoltaic module, the back convective heat dissipation energy of the photovoltaic module, the thermal conductivity of the photovoltaic module, the energy absorbed by the photovoltaic module from environmental radiation, and the output energy of the photovoltaic module. This will make it easier for relevant personnel to intuitively and clearly obtain the distribution of energy in each part of the photovoltaic module's energy balance equation.

[0101] The photovoltaic module heat dissipation analysis method provided in this application, after solving for the module temperature and cell temperature using the photovoltaic module energy balance equation and the cell energy balance equation, may further include:

[0102] Output component temperature and cell temperature.

[0103] In this application, after the module temperature and cell temperature are obtained, the module temperature and cell temperature can also be output. Specifically, the module temperature and cell temperature can be output to the terminal via email, SMS, WeChat official account push, etc., so that relevant personnel can know the module temperature and cell temperature in a timely manner.

[0104] To illustrate the above process more clearly, let's take a standard 166mm single-glass module as an example. The module's temperature coefficient is 0.32%, its standard conversion efficiency is 21%, the front panel is glass with a thickness of 3.2mm, the back panel is 0.5mm thick, and the heat transfer coefficient of the front glass is 10W / (m²). 2 *K), thermal conductivity is 3.2*10 -2 W / (m 2 *K), the heat transfer coefficient of the back plate is 5W / (m²). 2 *K), thermal conductivity is 2.5*10 -3 W / (m 2 *K), under standard AM1.5 conditions, with an ambient temperature of 25℃ and a module installation angle of 20°, the module temperature (theoretical calculated temperature) can be calculated to be 52.1℃ and the cell temperature to be 69.5℃ using the above formula. The energy distribution diagram of each part of the module is shown below. Figure 4 As shown.

[0105] Under light wind conditions, the highest measured temperature of the photovoltaic modules at the Haining photovoltaic power station was approximately 49°C, which is close to the theoretically calculated temperature. By analyzing the heat dissipation performance of the modules, we can provide direction for optimizing and improving the module design, such as material thickness, material type, and surface shape.

[0106] This application also provides a photovoltaic module heat dissipation analysis device, see [link]. Figure 5 It shows a schematic diagram of the structure of a photovoltaic module heat dissipation analysis device provided in an embodiment of this application, which may include:

[0107] The acquisition module 51 is used to acquire the photovoltaic module's influence parameters other than the module temperature to be solved, the material influence parameters of the photovoltaic module other than the cell temperature to be solved, and the external influence parameters; the influence parameters are those that affect the heat dissipation of the photovoltaic module.

[0108] Module 52 is used to construct the photovoltaic module energy balance equation and the cell energy balance equation based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters.

[0109] Solver module 53 is used to solve for the module temperature and cell temperature using the photovoltaic module energy balance equation and the cell energy balance equation.

[0110] The calculation module 54 is used to calculate the module's radiative heat dissipation energy, convective heat dissipation energy, thermal conductivity, and output energy by utilizing the module temperature, cell temperature, and material influence parameters.

[0111] This application provides a photovoltaic module heat dissipation analysis device, in which the module's influencing parameters may include the module's installation angle, module area, module temperature coefficient, and module conversion efficiency under AM1.5 conditions.

[0112] Material-related parameters may include front panel reflectivity, back panel reflectivity, film reflectivity, cell reflectivity, front panel refractive index, back panel refractive index, film refractive index, cell refractive index, front panel thickness, back panel thickness, film thickness, cell thickness, front panel heat transfer coefficient, back panel heat transfer coefficient, front panel thermal conductivity, back panel thermal conductivity, and film thermal conductivity.

[0113] External influencing parameters may include spectral energy distribution data under AM1.5 conditions, ambient temperature, and Boltzmann constant.

[0114] This application provides a photovoltaic module heat dissipation analysis device, wherein the construction module 52 may include:

[0115] The first building unit is used to construct the energy balance equation for photovoltaic modules:

[0116] P 组件吸收能量 =P 正面辐射散热 +P 背面辐射散热 +P 正面对流散热 +P 背面对流散热 +P 导热量 +P 组件输出能量 ;

[0117] The second building unit is used to construct the energy balance equation for the solar cell:

[0118] P 电池吸收能量 =P 电池总功率 +P 导热量 ;

[0119] Among them, P 组件吸收能量 =∫G AM1.5 (λ)*(ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ,P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ,P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4 )dλ,P 正面对流散热 =h 前板 *A*(T PV -Ta ), P 背面对流散热 =h 背板 *A*(T PV -T a ), P 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )], P 电池吸收能量 =∫G AM1.5 (λ)*(ε 电池 )dλ,P 电池总功率 =η cell *S 电池 P 组件吸收能量 P represents the energy absorbed by photovoltaic modules from environmental radiation. 正面辐射散热 P represents the heat dissipation energy radiated from the front of the photovoltaic module. 背面辐射散热 P is the heat dissipation energy radiated from the back of the photovoltaic module. 正面对流散热 For the front-side convective heat dissipation energy of photovoltaic modules, P 背面对流散热 For the back-side convection heat dissipation energy of photovoltaic modules, P 导热量 For heat conduction of photovoltaic modules, P 组件输出能量 To output energy for photovoltaic modules, G AM1.5 (λ) represents the spectral energy distribution data under AM1.5 conditions, ε 前板 For front panel absorption rate, R1 is the front panel reflectivity, n1 is the front panel refractive index, d1 is the front panel thickness, λ is the wavelength, θ is the component mounting angle, and ε is the component thickness. 背板 For backplate absorption rate, R2 is the backplate reflectivity, n2 is the backplate refractive index, d2 is the backplate thickness, and ε 胶膜 For film absorption rate, R3 is the reflectivity of the film, n3 is the refractive index of the film, d3 is the thickness of the film, and ε 电池 For the cell absorption rate, R4 is the reflectivity of the solar cell, n4 is the refractive index of the solar cell, d4 is the thickness of the solar cell, σ is the Boltzmann constant, A is the area of ​​the module, and T is the thickness of the solar cell. PV Let T be the component temperature to be solved. a For ambient temperature, h 前板 h is the heat transfer coefficient of the front plate. 背板 m1 is the thermal conductivity of the backplate, m2 is the thermal conductivity of the frontplate, m3 is the thermal conductivity of the adhesive film, and T is the thermal conductivity of the backplate. C Let η0 be the cell temperature to be solved, η0 be the conversion efficiency of the module under AM1.5 conditions, α be the temperature coefficient of the module, and P be the cell temperature. 电池吸收能量 For the solar cells to absorb energy, P 电池总功率 η represents the total power of the solar cells. cellFor cell efficiency, S 电池 This represents the total area of ​​the solar cells.

[0120] This application provides a photovoltaic module heat dissipation analysis device, wherein the calculation module 54 may include:

[0121] The first computing unit is used to utilize P 正面辐射散热 =∫σ*ε 前板 *A*(T PV 4 -T a 4 )dλ, calculate the front radiative heat dissipation energy of the photovoltaic module;

[0122] The second computing unit is used to utilize P 背面辐射散热 =∫σ*ε 背板 *A*(T PV 4 -T a 4 )dλ, calculate the heat dissipation energy radiated from the back of the photovoltaic module;

[0123] The third calculation unit is used to utilize P 正面对流散热 =h 前板 *A*(T PV -T a ), calculate the convective heat dissipation energy on the front side of the photovoltaic module;

[0124] The fourth computing unit is used to utilize P 背面对流散热 =h 背板 *A*(T PV -T a ), calculate the convective heat dissipation energy at the back of the photovoltaic module;

[0125] The second computing unit is used to utilize... Calculate the heat conduction of the photovoltaic module.

[0126] The photovoltaic module heat dissipation analysis device provided in this application embodiment may further include a calculation module 54 comprising:

[0127] An energy distribution map construction module is used to construct an energy distribution map based on the front radiative heat dissipation energy, back radiative heat dissipation energy, front convective heat dissipation energy, back convective heat dissipation energy, and thermal conductivity of the photovoltaic module after calculating these values.

[0128] The photovoltaic module heat dissipation analysis device provided in this application embodiment may further include:

[0129] The computational component absorbs energy modules for utilizing P 组件吸收能量 =∫G AM1.5 (λ)*(ε 前板 +ε 背板 +2ε 胶膜 +ε 电池 )dλ, calculate the energy absorbed by the photovoltaic module from environmental radiation;

[0130] The calculation component outputs an energy module for utilizing P. 组件输出能量 =η0*G AM1.5 (λ)*[1+α*(T PV -T a )], calculate the output energy of the photovoltaic module.

[0131] The photovoltaic module heat dissipation analysis device provided in this application embodiment may further include:

[0132] The output module is used in the photovoltaic module heat dissipation analysis device provided in the embodiments of this application to output the module temperature and the cell temperature.

[0133] This application also provides a photovoltaic module heat dissipation analysis device, see [link to relevant documentation]. Figure 6 It shows a schematic diagram of the structure of a photovoltaic module heat dissipation analysis device provided in an embodiment of this application, which may include:

[0134] Memory 61 is used to store computer programs;

[0135] When processor 62 executes a computer program stored in memory 61, it can perform the following steps:

[0136] Obtain the photovoltaic module's influence parameters (excluding the module temperature to be solved), material influence parameters (excluding the cell temperature to be solved), and external influence parameters. These influence parameters are those that affect the photovoltaic module's heat dissipation. Based on these parameters, the module temperature, material influence parameters, cell temperature, and external influence parameters, construct the photovoltaic module's energy balance equation and the cell's energy balance equation. Solve these equations to obtain the module temperature and cell temperature. Finally, using the module temperature, cell temperature, and material influence parameters, calculate the module's radiative heat dissipation, convective heat dissipation, and conductive heat dissipation.

[0137] This application embodiment also provides a readable storage medium storing a computer program, which, when executed by a processor, can perform the following steps:

[0138] Obtain the photovoltaic module's influence parameters (excluding the module temperature to be solved), material influence parameters (excluding the cell temperature to be solved), and external influence parameters. These influence parameters are those that affect the photovoltaic module's heat dissipation. Based on these parameters, the module temperature, material influence parameters, cell temperature, and external influence parameters, construct the photovoltaic module's energy balance equation and the cell's energy balance equation. Solve these equations to obtain the module temperature and cell temperature. Finally, using the module temperature, cell temperature, and material influence parameters, calculate the module's radiative heat dissipation, convective heat dissipation, and conductive heat dissipation.

[0139] The readable storage medium may include various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0140] For a description of the relevant parts of the photovoltaic module heat dissipation analysis device, equipment and readable storage medium provided in this application, please refer to the detailed description of the corresponding parts in the photovoltaic module heat dissipation analysis method provided in the embodiments of this application, and will not be repeated here.

[0141] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that the elements inherent in a process, method, article, or apparatus that includes a list of elements are included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Additionally, portions of the technical solutions provided in the embodiments of this application that are consistent with the implementation principles of corresponding technical solutions in the prior art have not been described in detail to avoid excessive elaboration.

[0142] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not 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 analyzing the heat dissipation of photovoltaic modules, characterized in that, include: Obtain the photovoltaic module's influence parameters other than the module temperature to be solved, the material influence parameters of the photovoltaic module other than the cell temperature to be solved, and the external influence parameters; the influence parameters are those that affect the heat dissipation of the photovoltaic module. Based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters, the photovoltaic module energy balance equation and the cell energy balance equation are constructed. The module temperature and the cell temperature are obtained by solving the energy balance equation of the photovoltaic module and the energy balance equation of the cell. Using the component temperature, the cell temperature, and the material influence parameters, calculate the component's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity. Based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters, the photovoltaic module energy balance equation and the cell energy balance equation are constructed, including: Construct the energy balance equation for the photovoltaic module: ； Construct the energy balance equation for the battery cell: ； in, , , , , , , , , , The energy absorbed by the photovoltaic module from environmental radiation. The heat dissipation energy radiated from the front of the photovoltaic module. The photovoltaic module radiates heat from its back side. This refers to the convective heat dissipation energy on the front side of the photovoltaic module. This refers to the heat dissipation energy from the back convection of the photovoltaic module. For the heat conduction of the photovoltaic module, To output energy to the photovoltaic module, The data are spectral energy distribution data under AM1.5 conditions. For front panel absorption rate, , The reflectivity of the front panel, The refractive index of the front plate is... The thickness of the front plate is [missing information]. For wavelength, The installation angle of the component, For backplate absorption rate, , The backplate reflectivity, The refractive index of the back plate is... The thickness of the back plate, For film absorption rate, , The reflectivity of the adhesive film, The refractive index of the film is... The thickness of the adhesive film, For the cell absorption rate, , The reflectivity of the solar cell is... The refractive index of the solar cell is... The thickness of the battery cell, Boltzmann's constant, The area of ​​the component. The component temperature to be solved is... The ambient temperature is... The heat transfer coefficient of the front plate is... The heat transfer coefficient of the back plate is... The thermal conductivity of the front plate is given. The thermal conductivity of the backplate is... The thermal conductivity of the adhesive film is given. The temperature of the solar cell to be determined is... The conversion efficiency of the component under AM1.5 conditions. The temperature coefficient of the component. For the solar cells to absorb energy, This represents the total power of the solar cells. For cell efficiency, This represents the total area of ​​the solar cells.

2. The photovoltaic module heat dissipation analysis method according to claim 1, characterized in that, Using the component temperature, the cell temperature, and the material influence parameters, the component's radiative heat dissipation energy, convective heat dissipation energy, and thermal conductivity are calculated, including: use Calculate the front radiative heat dissipation energy of the photovoltaic module; use Calculate the heat dissipation energy radiated from the back of the photovoltaic module; use Calculate the convective heat dissipation energy on the front side of the photovoltaic module; use Calculate the convective heat dissipation energy on the back of the photovoltaic module; use Calculate the heat conduction of the photovoltaic module.

3. The photovoltaic module heat dissipation analysis method according to claim 2, characterized in that, After calculating the front radiative heat dissipation energy, the back radiative heat dissipation energy, the front convective heat dissipation energy, the back convective heat dissipation energy, and the thermal conductivity of the photovoltaic module, the method further includes: An energy distribution diagram is constructed based on the front radiative heat dissipation energy, the back radiative heat dissipation energy, the front convective heat dissipation energy, the back convective heat dissipation energy, and the thermal conductivity of the photovoltaic module.

4. The photovoltaic module heat dissipation analysis method according to claim 1, characterized in that, Also includes: use Calculate the energy absorbed by the photovoltaic module from environmental radiation; use Calculate the output energy of the photovoltaic module.

5. The photovoltaic module heat dissipation analysis method according to claim 1, characterized in that, After obtaining the module temperature and the cell temperature by using the photovoltaic module energy balance equation and the cell energy balance equation, the method further includes: Output the component temperature and the cell temperature.

6. A photovoltaic module heat dissipation analysis device, characterized in that, include: The acquisition module is used to acquire the photovoltaic module's influence parameters other than the module temperature to be solved, the material influence parameters of the photovoltaic module other than the cell temperature to be solved, and the external influence parameters; the influence parameters are those that affect the heat dissipation of the photovoltaic module. The module is used to construct the photovoltaic module energy balance equation and the cell energy balance equation based on the component influence parameters, the component temperature to be solved, the material influence parameters, the cell temperature to be solved, and the external influence parameters. The solution module is used to solve for the module temperature and the cell temperature using the photovoltaic module energy balance equation and the cell energy balance equation. The calculation module is used to calculate the component's radiative heat dissipation energy, convective heat dissipation energy, thermal conductivity, and output energy using the component temperature, the cell temperature, and the material influence parameters. The building module includes: The first building unit is used to construct the energy balance equation of the photovoltaic module: ； The second building unit is used to construct the energy balance equation of the battery cell: ； in, , , , , , , , , , The energy absorbed by the photovoltaic module from environmental radiation. The heat dissipation energy radiated from the front of the photovoltaic module. The photovoltaic module radiates heat from its back side. This refers to the convective heat dissipation energy on the front side of the photovoltaic module. This refers to the heat dissipation energy from the back convection of the photovoltaic module. For the heat conduction of the photovoltaic module, To output energy to the photovoltaic module, The data are spectral energy distribution data under AM1.5 conditions. For front panel absorption rate, , The reflectivity of the front panel, The refractive index of the front plate is... The thickness of the front plate is [missing information]. For wavelength, The installation angle of the component, For backplate absorption rate, , The backplate reflectivity, The refractive index of the back plate is... The thickness of the back plate, For film absorption rate, , The reflectivity of the adhesive film, The refractive index of the film is... The thickness of the adhesive film, For the cell absorption rate, , The reflectivity of the solar cell is... The refractive index of the solar cell is... The thickness of the battery cell, Boltzmann's constant, The area of ​​the component. The component temperature to be solved is... The ambient temperature is... The heat transfer coefficient of the front plate is... The heat transfer coefficient of the back plate is... The thermal conductivity of the front plate is given. The thermal conductivity of the backplate is... The thermal conductivity of the adhesive film is given. The temperature of the solar cell to be determined is... The conversion efficiency of the component under AM1.5 conditions. The temperature coefficient of the component. For the solar cells to absorb energy, This represents the total power of the solar cells. For cell efficiency, This represents the total area of ​​the solar cells.

7. A photovoltaic module heat dissipation analysis device, characterized in that, include: Memory, used to store computer programs; A processor, configured to execute the computer program to implement the steps of the photovoltaic module heat dissipation analysis method as described in any one of claims 1 to 5.

8. A readable storage medium, characterized in that, The readable storage medium stores a computer program that, when executed by a processor, implements the steps of the photovoltaic module heat dissipation analysis method as described in any one of claims 1 to 5.

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