CN113984831B - Method, device and equipment for determining solar heat gain coefficient of semitransparent photovoltaic module - Google Patents
Method, device and equipment for determining solar heat gain coefficient of semitransparent photovoltaic module Download PDFInfo
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- 230000005855 radiation Effects 0.000 claims abstract description 44
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- 238000002834 transmittance Methods 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims description 21
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- 239000011521 glass Substances 0.000 description 6
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Abstract
The application discloses a method for determining a solar heat gain coefficient of a semitransparent photovoltaic module, which comprises the steps of determining the spectral power generation efficiency of a photovoltaic cell under an irradiation light beam based on the external quantum efficiency, the open-circuit voltage, the filling factor and the wavelength of the irradiation light beam of the photovoltaic cell in the semitransparent photovoltaic module; determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectrum power generation efficiency and the standard spectrum; determining the proportion of the semitransparent photovoltaic module for converting the absorbed solar radiation into heat based on the comprehensive power generation efficiency, the direct absorption ratio of the semitransparent photovoltaic module and the coverage rate of the photovoltaic cell; the solar heat gain coefficient of the translucent photovoltaic assembly is determined based on the ratio and the direct transmittance of the translucent photovoltaic assembly. The application determines the solar heat gain coefficient, and determines the part which is converted into electric quantity in solar radiation absorbed by the semitransparent photovoltaic assembly, so that the accuracy of the solar heat gain coefficient is improved. The present application also provides an apparatus, a device and a storage medium having the above advantages.
Description
Technical Field
The application relates to the technical field of photovoltaic modules, in particular to a method and a device for determining solar heat gain coefficient of a semitransparent photovoltaic module, electronic equipment and a computer readable storage medium.
Background
Building Integrated Photovoltaics (BIPV) is a technology for integrating solar power (Photovoltaic) products into buildings, and can replace traditional Building materials or components. The translucent photovoltaic module is used on a building, not only can the electricity generated by solar radiation be supplied to the building, but also the solar radiation entering the room can be reduced due to the low light transmission or the light impermeability of the translucent photovoltaic module.
The Solar Heat Gain Coefficient (SHGC) is the ratio of the heat quantity of Solar radiation entering the room through the transparent enclosure structure to the Solar radiation quantity irradiating on the outer surface of the transparent enclosure structure, and is an important index for evaluating the thermal performance of the transparent enclosure structure. The calculation of the solar heat gain coefficient of the traditional glass used in the building external protective structure is specified in JGJ/T151 + 2008 "thermal calculation regulations for building door and window glass curtain walls" in China. However, since a semitransparent photovoltaic module is different from a conventional glass, in the case of the conventional glass, the sum of reflectivity, transmittance and absorptivity is 1, absorbed solar radiation is completely converted into heat, while in the case of the semitransparent photovoltaic module, the absorbed solar radiation is not completely converted into heat, and a part of the absorbed solar radiation is converted into electricity through a photovoltaic effect. Therefore, the existing calculation of the solar heat gain coefficient of the traditional glass is not suitable for the semitransparent photovoltaic module.
Therefore, how to determine the solar heat gain coefficient of the semitransparent photovoltaic module to promote the building integration of photovoltaic is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The application aims to provide a method, a device, an electronic device and a computer readable storage medium for determining a solar heat gain coefficient of a semitransparent photovoltaic assembly, so as to determine the solar heat gain coefficient of the semitransparent photovoltaic assembly.
In order to solve the technical problem, the present application provides a method for determining a solar heat gain coefficient of a semitransparent photovoltaic module, including:
determining spectral power generation efficiency of a photovoltaic cell under an irradiation light beam based on external quantum efficiency, open-circuit voltage, fill factor and wavelength of the irradiation light beam of the photovoltaic cell in a semi-transparent photovoltaic module;
determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectral power generation efficiency and the standard spectrum;
determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated power generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage;
determining a solar heat gain coefficient of the translucent photovoltaic component based on the ratio and a direct transmittance of the translucent photovoltaic component.
Optionally, the determining, based on the integrated power generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage, a ratio of the translucent photovoltaic module to convert absorbed solar radiation into heat includes:
determining the proportion of the semitransparent photovoltaic module for converting the absorbed solar radiation into heat according to a first preset formula based on the comprehensive power generation efficiency, the direct absorption ratio and the photovoltaic cell coverage rate; wherein the first preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the proportion of absorbed solar radiation that is converted to heat for a translucent photovoltaic module,
is the direct absorption ratio of the translucent photovoltaic module,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
is the photovoltaic cell coverage.
Optionally, the determining the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam based on the external quantum efficiency, the open-circuit voltage, the fill factor, and the wavelength of the irradiation light beam of the photovoltaic cell in the translucent photovoltaic module includes:
determining the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to a second preset formula based on the external quantum efficiency, the open-circuit voltage, the fill factor and the wavelength; wherein the second preset formula is as follows:
in the formula (I), the compound is shown in the specification,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam of (1), q is the electron charge amount,
is the wavelength, h is the Planck constant, c is the speed of light,
at a wavelength of
The external quantum efficiency of the photovoltaic cell under the illuminating beam,
is the open circuit voltage of the photovoltaic cell,
is a photovoltaic cell fill factor.
Optionally, based on the spectral power generation efficiency and a standard spectrum, determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum:
determining the comprehensive power generation efficiency according to a third preset formula based on the spectral power generation efficiency and the standard spectrum; wherein the third preset formula is as follows:
in the formula (I), the compound is shown in the specification,
photovoltaic cell inThe comprehensive power generation efficiency under the standard spectrum,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam,
is a standard spectrum.
Optionally, after determining the solar heat gain coefficient of the translucent photovoltaic module based on the ratio and the direct transmittance of the translucent photovoltaic module, the method further includes:
and sending the solar heat gain coefficient to a display terminal.
The present application further provides a device for determining a solar heat gain coefficient of a translucent photovoltaic module, comprising:
the device comprises a first determination module, a second determination module and a control module, wherein the first determination module is used for determining the spectral power generation efficiency of a photovoltaic cell under an irradiation light beam based on the external quantum efficiency, the open-circuit voltage, the filling factor and the wavelength of the irradiation light beam of the photovoltaic cell in the semitransparent photovoltaic module;
the second determination module is used for determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectral power generation efficiency and the standard spectrum;
a third determination module for determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage;
a fourth determination module to determine a solar heat gain coefficient of the translucent photovoltaic assembly based on the ratio and a direct transmittance of the translucent photovoltaic assembly.
Optionally, the third determining module is specifically configured to determine, based on the comprehensive power generation efficiency, the direct absorption ratio, and the photovoltaic cell coverage, a ratio of the absorbed solar radiation to heat of the translucent photovoltaic module according to a first preset formula; wherein the first preset formula is
In the formula (I), the compound is shown in the specification,
the proportion of absorbed solar radiation that is converted to heat for a translucent photovoltaic module,
is the direct absorption ratio of the translucent photovoltaic module,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
is the photovoltaic cell coverage.
Optionally, the method further includes:
and the sending module is used for sending the solar heat gain coefficient to a display terminal.
The present application further provides an electronic device, comprising:
a memory for storing a computer program;
and the processor is used for realizing the steps of any one of the determination methods of the solar heat gain coefficient of the semitransparent photovoltaic assembly when executing the computer program.
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of any of the above-described methods for determining solar heat gain coefficient of a translucent photovoltaic module.
The application provides a method for determining a solar heat gain coefficient of a semitransparent photovoltaic assembly, which comprises the following steps: determining spectral power generation efficiency of a photovoltaic cell under an irradiation light beam based on external quantum efficiency, open-circuit voltage, fill factor and wavelength of the irradiation light beam of the photovoltaic cell in a semi-transparent photovoltaic module; determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectral power generation efficiency and the standard spectrum; determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated power generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage; determining a solar heat gain coefficient of the translucent photovoltaic component based on the ratio and a direct transmittance of the translucent photovoltaic component.
Therefore, the method determines the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to the external quantum efficiency, the open-circuit voltage, the filling factor and the wavelength of the irradiation light beam of the photovoltaic cell in the semitransparent photovoltaic module, further determines the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum according to the spectral power generation efficiency and the standard spectrum, namely determines the part of the semitransparent photovoltaic module which is absorbed by the solar radiation and converted into electric quantity, and further determines the proportion of the semitransparent photovoltaic module which is used for converting the absorbed solar radiation into heat based on the power generation efficiency, the direct absorption ratio of the semitransparent photovoltaic module and the coverage rate of the photovoltaic cell, thereby determining the solar heat gain coefficient of the semitransparent photovoltaic module based on the direct transmission ratio of the semitransparent photovoltaic module and the proportion of the absorbed solar radiation into heat, wherein the part of the semitransparent photovoltaic module which is absorbed by the solar radiation and converted into electric quantity is determined, the accuracy of the solar heat gain coefficient is improved, and meanwhile, the barrier for determining the solar heat gain coefficient of the semitransparent photovoltaic module under different photovoltaic cell coverage rates is broken through.
In addition, the application also provides a device, an electronic device and a computer readable storage medium with the advantages.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a flowchart of a method for determining a solar thermal coefficient of a translucent photovoltaic module according to an embodiment of the present disclosure;
fig. 2 is a block diagram of a device for determining a solar heat gain coefficient of a translucent photovoltaic module according to an embodiment of the present application;
fig. 3 is a block diagram of an electronic device according to an embodiment of the present disclosure.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
As described in the background section, since a translucent photovoltaic module is different from a conventional glass in which the sum of reflectance, transmittance, and absorptance is 1, absorbed solar radiation is entirely converted into heat, whereas in the case of a translucent photovoltaic module, absorbed solar radiation is not entirely converted into heat, and a part thereof is converted into electricity by the photovoltaic effect. Therefore, the existing calculation of the solar heat gain coefficient of the traditional glass is not suitable for the semitransparent photovoltaic module.
In view of the above, the present application provides a method for determining a solar heat gain coefficient of a translucent photovoltaic module, please refer to fig. 1, which includes:
step S101: determining spectral power generation efficiency of a photovoltaic cell under an illumination beam based on external quantum efficiency, open circuit voltage, fill factor, and wavelength of the illumination beam of the photovoltaic cell in a semi-transparent photovoltaic module.
The semitransparent photovoltaic module refers to a component which is made semitransparent by methods such as array arrangement and clearance or laser etching.
The External Quantum Efficiency (EQE) is the ratio of the number of charge carriers of the solar cell to the number of photons of a certain energy externally incident on the surface of the solar cell, namely:
where n (electrons) is the number of electrons and N (photons) is the number of photons.
The external quantum efficiency of the photovoltaic cell is obtained by testing through IPCE testing equipment, and the short-circuit current of the photovoltaic cell can be calculated according to the external quantum efficiency, namely:
in the formula (I), the compound is shown in the specification,
at a wavelength of
The external quantum efficiency of the photovoltaic cell under the illuminating beam,
for photovoltaic cells at wavelengths of
The short-circuit current excited by the light beam,
so as to be incident on the surface of the cell at a wavelength of
Q is an electron charge amount, q =1.6 × 10-19C. Formula (2) is represented by formula (1)And (4) deforming to obtain.
Optionally, the determining the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam based on the external quantum efficiency, the open-circuit voltage, the fill factor, and the wavelength of the irradiation light beam of the photovoltaic cell in the translucent photovoltaic module includes:
determining the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to a second preset formula based on the external quantum efficiency, the open-circuit voltage, the fill factor and the wavelength; wherein the second preset formula is as follows:
in the formula (I), the compound is shown in the specification,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam of (1), q is the electron charge amount,
h =6.626 × 10 as wavelength, h is Planck constant-34J · s, c is the speed of light, c =2.9979 × 108m/s，
At a wavelength of
The external quantum efficiency of the photovoltaic cell under the illuminating beam,
is the open circuit voltage of the photovoltaic cell,
fill factor for photovoltaic cells。
It is to be noted that at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam is generally obtained according to the formula (4), and the formula (3) can be obtained by transforming the formula (4).
Step S102: and determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectral power generation efficiency and the standard spectrum.
The standard spectrum includes illumination beams of different wavelengths.
Optionally, based on the spectral power generation efficiency and a standard spectrum, determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum:
determining the comprehensive power generation efficiency according to a third preset formula based on the spectral power generation efficiency and the standard spectrum; wherein the third preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam,
is a standard spectrum.
Step S103: determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage.
Optionally, the determining, based on the integrated power generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage, a ratio of the translucent photovoltaic module to convert absorbed solar radiation into heat includes:
determining the proportion of the semitransparent photovoltaic module for converting the absorbed solar radiation into heat according to a first preset formula based on the comprehensive power generation efficiency, the direct absorption ratio and the photovoltaic cell coverage rate; wherein the first preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the proportion of absorbed solar radiation that is converted to heat for a translucent photovoltaic module,
is the direct absorption ratio of the translucent photovoltaic module,
for the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
is the photovoltaic cell coverage.
Direct absorption ratio
Is obtained by the following formula:
in the formula (I), the compound is shown in the specification,
is the direct reflectance of the translucent photovoltaic module,
is the direct transmittance of the translucent photovoltaic module.
Direct transmittance
Is obtained by the following formula:
in the formula (I), the compound is shown in the specification,
is a translucent photovoltaic window to wavelengths of
The transmittance of the light beam of (a),
is a standard spectrum.
Direct reflectance
Is obtained by the following formula:
in the formula (I), the compound is shown in the specification,
is a translucent photovoltaic window to wavelengths of
Is measured with respect to the reflectance of the illuminating light beam,
is a standard spectrum.
Step S104: determining a solar heat gain coefficient of the translucent photovoltaic component based on the ratio and a direct transmittance of the translucent photovoltaic component.
The solar heat gain coefficient is obtained by the following formula:
in the formula (I), the compound is shown in the specification,
in order to obtain the thermal coefficient of the sun,
is the heat exchange coefficient of the indoor side surface of the semitransparent photovoltaic component, W/(m)2·K)，
The heat exchange coefficient of the outdoor side surface of the semitransparent photovoltaic assembly is adopted.
The method determines the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to the external quantum efficiency, the open-circuit voltage, the filling factor and the wavelength of the irradiation light beam of the photovoltaic cell in the semitransparent photovoltaic module, further determines the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum according to the spectral power generation efficiency and the standard spectrum, namely determines the part of the semitransparent photovoltaic module which is absorbed by the solar radiation and converted into electric quantity, further determines the proportion of the semitransparent photovoltaic module which is used for converting the absorbed solar radiation into heat based on the power generation efficiency, the direct absorption ratio of the semitransparent photovoltaic module and the coverage rate of the photovoltaic cell, determines the solar heat gain coefficient of the semitransparent photovoltaic module based on the direct transmission ratio of the semitransparent photovoltaic module and the proportion of the absorbed solar radiation into heat, and determines the part of the semitransparent photovoltaic module which is absorbed by the semitransparent photovoltaic module and converted into electric quantity, the accuracy of calculating the solar heat gain coefficient is improved, and meanwhile, the barrier for determining the solar heat gain coefficient of the semitransparent photovoltaic module under different photovoltaic cell coverage rates is broken through.
On the basis of the foregoing embodiment, in an embodiment of the present application, after determining the solar heat gain coefficient of the translucent photovoltaic module, the method for determining the solar heat gain coefficient further includes:
and sending the solar heat gain coefficient to a display terminal.
The transmission method of the solar heat gain coefficient is not limited in the present application, and is determined as the case may be. For example, the transmission may be performed in a wired manner or in a wireless manner. Further, the wireless transmission mode includes, but is not limited to, bluetooth, WiFi, 4G, and 5G.
The following describes a device for determining a solar heat gain coefficient of a translucent photovoltaic module provided in an embodiment of the present application, and the device for determining a solar heat gain coefficient of a translucent photovoltaic module described below and the method for determining a solar heat gain coefficient of a translucent photovoltaic module described above may be referred to correspondingly.
Fig. 2 is a block diagram of a structure of an apparatus for determining a solar thermal coefficient of a translucent photovoltaic module according to an embodiment of the present application, and with reference to fig. 2, the apparatus for determining a solar thermal coefficient of a translucent photovoltaic module may include:
a first determination module 100, configured to determine spectral power generation efficiency of a photovoltaic cell in a semi-transparent photovoltaic module under an irradiation light beam based on external quantum efficiency, an open-circuit voltage, a fill factor, and a wavelength of the irradiation light beam of the photovoltaic cell;
a second determining module 200, configured to determine, based on the spectral power generation efficiency and a standard spectrum, a comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum;
a third determination module 300 for determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage;
a fourth determination module 400 for determining a solar heat gain coefficient of the translucent photovoltaic assembly based on the ratio and a direct transmittance of the translucent photovoltaic assembly.
The device for determining a solar thermal coefficient of a semitransparent photovoltaic module according to this embodiment is configured to implement the foregoing method for determining a solar thermal coefficient of a semitransparent photovoltaic module, and thus specific embodiments of the device for determining a solar thermal coefficient of a semitransparent photovoltaic module can be found in the foregoing embodiments of the method for determining a solar thermal coefficient of a semitransparent photovoltaic module, for example, the first determining module 100, the second determining module 200, the third determining module 300, and the fourth determining module 400 are respectively configured to implement steps S101, S102, S103, and S104 of the method for determining a solar thermal coefficient of a semitransparent photovoltaic module, so that specific embodiments thereof may refer to descriptions of corresponding embodiments of the respective portions, and thus, no further description is given here.
Optionally, the third determining module 300 is specifically configured to determine, according to a first preset formula, a ratio of the semitransparent photovoltaic module to convert absorbed solar radiation into heat based on the comprehensive power generation efficiency, the direct absorption ratio, and the photovoltaic cell coverage; wherein the first preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the proportion of absorbed solar radiation that is converted to heat for a translucent photovoltaic module,
is the direct absorption ratio of the translucent photovoltaic module,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
is the photovoltaic cell coverage.
Optionally, the first determining module 100 is specifically configured to determine, based on the external quantum efficiency, the open-circuit voltage, the fill factor, and the wavelength, a spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to a second preset formula; wherein the second preset formula is as follows:
in the formula (I), the compound is shown in the specification,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam of (1), q is the electron charge amount,
is the wavelength, h is the Planck constant, c is the speed of light,
at a wavelength of
The external quantum efficiency of the photovoltaic cell under the illuminating beam,
is the open circuit voltage of the photovoltaic cell,
is a photovoltaic cell fill factor.
Optionally, the second determining module 200 is specifically configured to determine the comprehensive power generation efficiency according to a third preset formula based on the spectral power generation efficiency and the standard spectrum; wherein the third preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam,
is a standard spectrum.
The device determines the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to the external quantum efficiency, the open-circuit voltage, the filling factor and the wavelength of the irradiation light beam of the photovoltaic cell in the semitransparent photovoltaic module, further determines the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum according to the spectral power generation efficiency and the standard spectrum, namely determines the part of the solar radiation absorbed by the semitransparent photovoltaic module, which is converted into electric quantity, and further determines the proportion of the semitransparent photovoltaic module for converting the absorbed solar radiation into heat based on the power generation efficiency, the direct absorption ratio of the semitransparent photovoltaic module and the coverage rate of the photovoltaic cell, thereby determining the solar heat gain coefficient of the semitransparent photovoltaic module based on the direct transmission ratio of the semitransparent photovoltaic module and the proportion of the absorbed solar radiation into heat, and determining the part of the solar radiation absorbed by the semitransparent photovoltaic module, which is converted into electric quantity, the accuracy of calculating the solar heat gain coefficient is improved, and meanwhile, the barrier for determining the solar heat gain coefficient of the semitransparent photovoltaic module under different photovoltaic cell coverage rates is broken through.
Optionally, the method further includes:
and the sending module is used for sending the solar heat gain coefficient to a display terminal.
The electronic device provided by the embodiment of the present application is introduced below, and the electronic device described below and the method for determining the solar thermal coefficient of the translucent photovoltaic module described above may be referred to correspondingly.
Referring to fig. 3, the electronic device includes:
a memory 11 for storing a computer program;
a processor 12, configured to implement the steps of the method for determining a solar heat gain coefficient of a semitransparent photovoltaic module according to any one of the above embodiments when executing the computer program.
The following describes a computer-readable storage medium provided in an embodiment of the present application, and the computer-readable storage medium described below and the method for determining the solar thermal coefficient of the translucent photovoltaic module described above may be referred to correspondingly.
A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the method for determining a solar thermal coefficient of a translucent photovoltaic module according to any one of the above embodiments.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The method, the apparatus, the electronic device and the computer readable storage medium for determining the solar thermal coefficient of the translucent photovoltaic module provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (6)
1. A method for determining solar heat gain coefficient of a semitransparent photovoltaic module is characterized by comprising the following steps:
determining spectral power generation efficiency of a photovoltaic cell under an irradiation light beam based on external quantum efficiency, open-circuit voltage, fill factor and wavelength of the irradiation light beam of the photovoltaic cell in a semi-transparent photovoltaic module;
determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectral power generation efficiency and the standard spectrum;
determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated power generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage;
determining a solar heat gain coefficient of the translucent photovoltaic component based on the ratio and a direct transmittance of the translucent photovoltaic component;
wherein determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated power generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage comprises:
determining the proportion of the semitransparent photovoltaic module for converting the absorbed solar radiation into heat according to a first preset formula based on the comprehensive power generation efficiency, the direct absorption ratio and the photovoltaic cell coverage rate; wherein the first preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the proportion of absorbed solar radiation that is converted to heat for a translucent photovoltaic module,
is the direct absorption ratio of the translucent photovoltaic module,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum is shown, and CR is the coverage rate of the photovoltaic cell;
the determining the spectral power generation efficiency of the photovoltaic cell under the illumination beam based on the external quantum efficiency, the open-circuit voltage, the fill factor, and the wavelength of the illumination beam of the photovoltaic cell in the translucent photovoltaic module comprises:
determining the spectral power generation efficiency of the photovoltaic cell under the irradiation light beam according to a second preset formula based on the external quantum efficiency, the open-circuit voltage, the fill factor and the wavelength; wherein the second preset formula is as follows:
in the formula (I), the compound is shown in the specification,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam of (1), q is the electron charge amount,
is the wavelength, h is the Planck constant, c is the speed of light,
at a wavelength of
The external quantum efficiency of the photovoltaic cell under the illuminating beam,
is the open circuit voltage of the photovoltaic cell, FF is the photovoltaic cell fill factor;
determining, based on the spectral power generation efficiency and a standard spectrum, a comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum comprises:
determining the comprehensive power generation efficiency according to a third preset formula based on the spectral power generation efficiency and the standard spectrum; wherein the third preset formula is as follows:
in the formula (I), the compound is shown in the specification,
for the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam,
is a standard spectrum.
2. The method of determining a solar heat gain coefficient of claim 1, wherein after determining the solar heat gain coefficient of the translucent photovoltaic component based on the ratio and the direct transmittance of the translucent photovoltaic component, further comprising:
and sending the solar heat gain coefficient to a display terminal.
3. A device for determining solar heat gain coefficient of a translucent photovoltaic module, comprising:
the device comprises a first determination module, a second determination module and a control module, wherein the first determination module is used for determining the spectral power generation efficiency of a photovoltaic cell under an irradiation light beam based on the external quantum efficiency, the open-circuit voltage, the filling factor and the wavelength of the irradiation light beam of the photovoltaic cell in the semitransparent photovoltaic module;
the second determination module is used for determining the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum based on the spectral power generation efficiency and the standard spectrum;
a third determination module for determining a proportion of the translucent photovoltaic module that converts absorbed solar radiation to heat based on the integrated generation efficiency, the direct absorption ratio of the translucent photovoltaic module, and the photovoltaic cell coverage;
a fourth determination module to determine a solar heat gain coefficient of the translucent photovoltaic component based on the ratio and a direct transmittance of the translucent photovoltaic component;
the third determining module is specifically configured to determine, based on the comprehensive power generation efficiency, the direct absorption ratio, and the photovoltaic cell coverage, a ratio of the absorbed solar radiation to heat of the translucent photovoltaic module according to a first preset formula; wherein the first preset formula is
In the formula (I), the compound is shown in the specification,
the proportion of absorbed solar radiation that is converted to heat for a translucent photovoltaic module,
is the direct absorption ratio of the translucent photovoltaic module,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum is shown, and CR is the coverage rate of the photovoltaic cell;
the first determining module is specifically configured to determine, based on the external quantum efficiency, the open-circuit voltage, the fill factor, and the wavelength, a spectral power generation efficiency of the photovoltaic cell under the irradiation beam according to a second preset formula; wherein the second preset formula is as follows:
in the formula (I), the compound is shown in the specification,
at a wavelength of
The spectral power generation efficiency of the photovoltaic cell under the irradiation beam of (1), q is the electron charge amount,
is the wavelength, h is the Planck constant, c is the speed of light,
at a wavelength of
The external quantum efficiency of the photovoltaic cell under the illuminating beam,
is the open circuit voltage of the photovoltaic cell, FF is the photovoltaic cell fill factor;
the second determining module is specifically configured to determine the comprehensive power generation efficiency according to a third preset formula based on the spectral power generation efficiency and the standard spectrum; wherein the third preset formula is as follows:
in the formula (I), the compound is shown in the specification,
the comprehensive power generation efficiency of the photovoltaic cell under the standard spectrum,
at a wavelength of
Of the irradiating beamThe spectral power generation efficiency of the lower photovoltaic cell,
is a standard spectrum.
4. The apparatus for determining solar heat gain coefficient according to claim 3, further comprising:
and the sending module is used for sending the solar heat gain coefficient to a display terminal.
5. An electronic device, comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method for determining the solar heat gain coefficient of a translucent photovoltaic module according to any one of claims 1 to 2 when executing said computer program.
6. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the method for determining a solar heat gain coefficient of a translucent photovoltaic module according to any one of claims 1 to 2.
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| Publication number | Priority date | Publication date | Assignee | Title |
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