CN111446924A - Power testing method and system for special-shaped solar cell module - Google Patents
Power testing method and system for special-shaped solar cell module Download PDFInfo
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- CN111446924A CN111446924A CN201910045342.8A CN201910045342A CN111446924A CN 111446924 A CN111446924 A CN 111446924A CN 201910045342 A CN201910045342 A CN 201910045342A CN 111446924 A CN111446924 A CN 111446924A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
- H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
- H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention relates to the technical field of solar cells, in particular to a power test method and a power test system for a special-shaped solar cell module, wherein the method comprises the steps of obtaining the measured power of the special-shaped solar cell module and a planar solar cell module corresponding to a plurality of light incidence angles; calculating to obtain the average measured power of the special-shaped solar cell module and the planar solar cell module; acquiring the measured power of the special-shaped solar cell module and the planar solar cell module corresponding to the preset light incidence angle; calculating the converted power by using the average measured power of the planar solar cell module, the corresponding special-shaped solar cell module under the preset light incidence angle and the measured power of the planar solar cell module; calculating a power attenuation coefficient; and calculating the actual power of the special-shaped solar cell module by using the power attenuation coefficient. The method realizes the correction of the measured power of the special-shaped solar cell module and improves the accuracy of the measured power.
Description
Technical Field
The invention relates to the technical field of solar cells, in particular to a power testing method and system for a special-shaped solar cell module.
Background
With the continuous development of science and technology, the demand for energy is increased, the exhaustion of energy is increasingly prominent, and new energy becomes a global research hotspot. Photovoltaic power generation is environment-friendly and inexhaustible, and becomes the most popular green energy.
Among them, the most important part of solar power generation is a solar cell module for converting solar energy into electric energy. Therefore, the I-V characteristic of the solar cell module is particularly important, and the I-V characteristic of the solar cell module needs to be tested before the solar cell module is shipped out of a factory so as to calibrate the power of the solar cell module.
In the prior art, I-V characteristics of a solar cell module are generally tested by using I-V testing equipment, and when the I-V testing equipment is used for testing, sunlight is simulated to irradiate the solar cell module so as to obtain an I-V characteristic curve. However, since the I-V test apparatus is tested based on the area of the direct point of sunlight on the surface of the solar cell module. Therefore, the existing I-V testing equipment can realize accurate measurement of the power of the planar solar cell module; and corresponding to some special-shaped solar cell modules (the special-shaped solar cell modules are special-shaped in space concept such as curved surface shape, but not special-shaped in plane concept), because the projection area of the special-shaped solar cell modules in the sunlight incidence direction is smaller than the actual area of the special-shaped solar cell modules, the accuracy of the power tested by the existing I-V testing equipment is lower.
Disclosure of Invention
In view of this, the embodiment of the present invention provides a power testing system for a special-shaped solar cell module, so as to solve the problem that the accuracy of power of the special-shaped solar cell module tested in the prior art is relatively low.
The embodiment of the invention provides a power test method of a special-shaped solar cell module, which comprises the following steps:
acquiring the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles;
acquiring the measurement power of the corresponding planar solar cell module under a plurality of light incidence angles; the special-shaped solar cell module and the planar solar cell module are made of the same material and have the same area;
calculating the measured power of the special-shaped solar cell module corresponding to the plurality of light incidence angles to obtain the average measured power of the special-shaped solar cell module;
calculating the average value of the measured power of the corresponding planar solar cell module under the plurality of light incidence angles to obtain the average measured power of the planar solar cell module;
acquiring the measurement power of the special-shaped solar cell module corresponding to a preset light incidence angle and the measurement power of the planar solar cell module corresponding to the preset light incidence angle;
calculating a converted power by using the average measured power of the planar solar cell module, the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the planar solar cell module corresponding to the preset light incidence angle;
dividing the average measured power of the special-shaped solar cell module by the converted power to obtain a power attenuation coefficient of the special-shaped solar cell module;
and multiplying the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.
According to the power testing method of the special-shaped solar cell module, the correction that the measured power is reduced due to the fact that the projection area of the special-shaped solar cell module is smaller than the actual area is achieved through the calculated power attenuation coefficient, and therefore the accuracy of the measured power of the special-shaped solar cell module is improved.
With reference to the first aspect, in a first implementation manner of the first aspect, the converted power is calculated by using the following formula:
wherein c' is the converted power; b' is the average measured power of the planar solar cell module; a is the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle; and b is the measured power of the corresponding planar solar cell module under the preset light incidence angle.
According to a second aspect, an embodiment of the present invention further provides a power testing apparatus for a special-shaped solar cell module, including:
the first acquisition module is used for acquiring the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles;
the second acquisition module is used for acquiring the measurement power of the corresponding planar solar cell module under a plurality of light incidence angles; the special-shaped solar cell module and the planar solar cell module are made of the same material and have the same area;
the first calculation module is used for calculating the measured power of the special-shaped solar cell module corresponding to the plurality of light incidence angles so as to obtain the average measured power of the special-shaped solar cell module;
the second calculation module is used for calculating the average value of the measurement power of the corresponding planar solar cell module under the plurality of light incidence angles so as to obtain the average measurement power of the planar solar cell module;
the third acquisition module is used for acquiring the measurement power of the special-shaped solar cell module corresponding to a preset light incidence angle and the measurement power of the planar solar cell module corresponding to the preset light incidence angle;
the third calculation module is used for calculating the converted power by utilizing the average measured power of the planar solar cell module, the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the planar solar cell module corresponding to the preset light incidence angle;
the fourth calculation module is used for dividing the average measured power of the special-shaped solar cell module by the converted power to obtain the power attenuation coefficient of the special-shaped solar cell module;
and the fifth calculation module is used for multiplying the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.
According to the power testing device of the special-shaped solar cell module, the correction that the measured power is reduced due to the fact that the projection area of the special-shaped solar cell module is smaller than the actual area is achieved through the calculated power attenuation coefficient, and therefore the accuracy of the measured power of the special-shaped solar cell module is improved.
According to a third aspect, an embodiment of the present invention further provides a data processing apparatus, including: the power testing method for the special-shaped solar cell module comprises a memory and a processor, wherein the memory and the processor are connected with each other in a communication mode, computer instructions are stored in the memory, and the processor executes the computer instructions so as to execute the power testing method for the special-shaped solar cell module in the first aspect or the first embodiment of the first aspect.
According to a fourth aspect, the embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions for causing the computer to execute the power testing method for the irregular-shaped solar cell module according to the first aspect of the present invention or the first embodiment of the first aspect.
According to a fifth aspect, an embodiment of the present invention further provides a power testing system for a special-shaped solar cell module, including:
a data processing apparatus as described in the third aspect of the present invention;
the power test equipment is electrically connected with the data processing equipment; the power test equipment is used for measuring the power of the special-shaped solar cell module under a plurality of light incidence angles and the power of the planar solar cell module under a plurality of light incidence angles, and sending the measurement result to the data processing equipment.
According to the power test system of the special-shaped solar cell module, the power test equipment is used for measuring the measured power of the special-shaped solar cell module and the measured power of the planar solar cell module under a plurality of light ray incidence angles; and processing the data measured by the power testing equipment by using the data processing equipment so as to correct the measured power of the special-shaped solar cell module and obtain the actual power of the special-shaped solar cell module, thereby improving the accuracy of the obtained power of the special-shaped solar cell module.
With reference to the fifth aspect, in the first embodiment of the fifth aspect, the method further includes:
and the rotating platform is used for fixing the solar cell module and driving the special-shaped solar cell module or the planar solar cell module to rotate.
According to the power test system of the special-shaped solar cell module, the special-shaped solar cell module or the planar solar cell module is fixed on the rotary platform, and the rotation of the rotary platform is utilized to simulate the incident angles of the light rays irradiated on the special-shaped solar cell module or the planar solar cell module, so that the power test equipment can measure the power of the special-shaped solar cell module or the planar solar cell module under the incident angles of the light rays, and a foundation is provided for the subsequent calculation of the actual power of the special-shaped solar cell module.
With reference to the fifth aspect or the first embodiment of the fifth aspect, in a second embodiment of the fifth aspect, the power test apparatus includes:
and the light source is fixedly arranged in the power test equipment and is used for irradiating the special-shaped solar cell module or the planar solar cell module.
According to the power test system of the special-shaped solar cell module, the light source is fixed in the power test equipment, namely the position of the light source relative to the power test equipment is kept unchanged; when the light source irradiates the solar cell module, different light ray incidence angles are simulated by utilizing the rotation of the rotary platform, and the size of the light ray incidence angle is adjusted by the rotary platform instead of the power test equipment, so that the frequent rotation of the power test equipment is avoided, and the service life of the power test equipment is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a flow chart of a power testing method of an irregular-shaped solar cell module in an embodiment of the invention;
FIGS. 2a to 2d are schematic diagrams illustrating the relationship between the incident angle of light and the irregular-shaped solar cell module according to the embodiment of the invention;
FIG. 3 is a schematic structural diagram of a power testing device of the irregular-shaped solar cell module in the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a data processing apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a power testing system of the irregular-shaped solar cell module in the embodiment of the invention;
FIG. 6 is a schematic diagram showing another structure of a power testing system of the irregular solar cell module in the embodiment of the invention;
reference numerals: 10-a rotating platform; 20-a power test device; 30-a data processing device; 41-a processor; 42-a communication bus; 43-a communication interface; 44-memory.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
According to an embodiment of the present invention, there is provided an embodiment of a method for power testing of a shaped solar cell module, where the steps illustrated in the flowchart of the drawings may be performed in a computer system, such as a set of computer executable instructions, and where a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different than that illustrated or described herein.
The embodiment of the invention provides a power test method of a special-shaped solar cell module, which comprises the following steps of:
and S11, obtaining the measured power of the corresponding special-shaped solar cell module under a plurality of light incidence angles.
Referring to fig. 2a to 2d, a plurality of light incident angles are described in detail, wherein the irregular-shaped solar cell module is illustrated as a hemisphere, fig. 2a to 2d show that the irregular-shaped solar cell module rotates clockwise along 0 point with 0x axis as a rotation axis, and light remains unchanged during the rotation of the irregular-shaped solar cell module, the light incident angle is defined as 0 ° in fig. 2a, and the light incident angle is defined as a rotation angle of the irregular-shaped solar cell module, and then the light incident angle changes with the rotation of the irregular-shaped solar cell module, as shown in fig. 2b, the light incident angle corresponds to a rotation angle β of the irregular-shaped solar cell module, as shown in fig. 2c, the rotation angle of the irregular-shaped solar cell module is 90 ° corresponding to the light incident angle of 90 °, and as shown in fig. 2d, the rotation angle of the irregular-shaped solar cell module is 180 ° corresponding to the light incident angle of 180 °.
Further, alternatively, the definition of the light incidence angle may be that the position of the solar cell module (the irregular solar cell module and the planar solar cell module) is kept unchanged, and the light position is changed; the definition of the incident angle of the light ray may also be a change in the position of the solar cell module (a profiled solar cell module and a planar solar cell module), a change in the position of the light ray, and the like. Only the definition of the same light incidence angle is needed for the special-shaped solar cell module and the planar solar cell module.
After the definition of the light incidence angle is determined, the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles can be measured through the power test equipment. Wherein the plurality of light incidence angles may be measured every 10 ° of 0 ° to 180 °. For example, the plurality of light rays are incident at angles of 0 °, 10 °, 20 °, … …, 170 °, 180 °. Specifically, when the incident angle of light is 0 degree, measuring the measurement power of the special-shaped solar cell module by using power test equipment; when the incident angle of light is 10 degrees, measuring the measurement power of the special-shaped solar cell module by using power test equipment; when the incident angle of light is 20 degrees, measuring the measurement power of the special-shaped solar cell module by using power test equipment; … …, respectively; and analogizing in sequence until the light incidence angle is 180 degrees, measuring the measurement power of the special-shaped solar cell module by using the power test equipment, thereby obtaining the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles. The digital processing equipment obtains the measured power of the corresponding special-shaped solar cell module under the incident angles of the light rays and is used for determining the actual power of the follow-up special-shaped solar cell module.
And S12, obtaining the measured power of the corresponding planar solar cell module under a plurality of light incidence angles.
The special-shaped solar cell module and the planar solar cell module are made of the same material and have the same area.
Fig. 2a to 2d only show the light incidence angle for the irregular solar cell module, and the definition of the light incidence angle for the planar solar cell module is the same as that of the irregular solar cell module.
For example, the incident angles of the plurality of light rays corresponding to the heteromorphic solar cell module are 0 °, 10 °, 20 °, … …, 170 °, 180 °, and the incident angles of the plurality of light rays corresponding to the planar solar cell module are also 0 °, 10 °, 20 °, … …, 170 °, 180 °. Similarly, measuring the measurement power of the planar solar cell module by using power test equipment; when the incident angle of light is 10 degrees, measuring the measurement power of the planar solar cell module by using power test equipment; when the incident angle of the light is 20 degrees, measuring the measurement power of the planar solar cell module by using power test equipment; … …, respectively; and analogizing in sequence until the light incidence angle is 180 degrees, and measuring the measurement power of the planar solar cell module by using the power test equipment, thereby obtaining the measurement power of the corresponding planar solar cell module under a plurality of light incidence angles. The digital processing equipment obtains the measured power of the corresponding planar solar cell module under the incident angles of the light rays and is used for determining the actual power of the follow-up special-shaped solar cell module.
And S13, calculating the measured power of the corresponding special-shaped solar cell module under the plurality of light incidence angles to obtain the average measured power of the special-shaped solar cell module.
And the data processing equipment calculates the average value of the measured power of the corresponding special-shaped solar cell module under the incident angles of the light rays to obtain the average measured power of the special-shaped solar cell module.
And S14, calculating the average value of the measured power of the corresponding planar solar cell module under a plurality of incident angles of the light rays to obtain the average measured power of the planar solar cell module.
And the data processing equipment calculates the average value of the measured power of the corresponding planar solar cell module under a plurality of light incidence angles so as to obtain the average measured power of the planar solar cell module.
And S15, obtaining the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the planar solar cell module corresponding to the preset light incidence angle.
For the special-shaped solar cell module and the planar solar cell, the preset light incidence angle is the same, for example, the measured power of the special-shaped solar cell module with the light incidence angle of 45 degrees needs to be corrected, and then the corresponding preset light incidence angle is 45 degrees; if the measured power of the special-shaped solar cell module with the ray incidence angle of 60 degrees needs to be corrected, the corresponding preset ray incidence angle is 60 degrees. Therefore, the preset light incidence angle is the light incidence angle corresponding to the measured power of the special-shaped solar cell module to be corrected.
And measuring the measurement power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measurement power of the planar solar cell module corresponding to the preset light incidence angle by using power test equipment. The data processing equipment obtains the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the planar solar cell module corresponding to the preset light incidence angle, and the measured powers are used for determining the actual power of the follow-up special-shaped solar cell module.
And S16, calculating the converted power by using the average measured power of the planar solar cell module, the measured power of the corresponding special-shaped solar cell module under the preset light incidence angle and the measured power of the corresponding planar solar cell module under the preset light incidence angle.
When the data processing device calculates the converted power, the following formula can be adopted to calculate the converted power in consideration of the test error brought by the power test device:
c' is the reduced power; b' is the average measured power of the planar solar cell module; a is the measured power of the corresponding special-shaped solar cell module under the preset light incidence angle; b is the measured power of the corresponding planar solar cell module under the preset light incidence angle; Δ C is a coefficient corresponding to the test error, and the coefficient may be specifically set according to an actual situation, and is not limited herein.
As an alternative implementation of this embodiment, the following formula may also be used to calculate the converted power:
and S17, dividing the average measured power of the special-shaped solar cell module by the converted power to obtain the power attenuation coefficient of the special-shaped solar cell module.
Specifically, the power attenuation coefficient of the irregular solar cell module can be calculated by adopting the following formula:
wherein a 'the average measured power of the special-shaped solar cell module, α the power attenuation coefficient of the special-shaped solar cell module, and c' is the converted power.
And S18, multiplying the measured power of the corresponding special-shaped solar cell module under the preset light incidence angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.
And the data processing device multiplies the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle acquired in the step S15 by the power attenuation coefficient calculated in the step S17 to obtain the actual power of the special-shaped solar cell module, wherein the actual power of the special-shaped solar cell module is the actual power of the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle.
According to the power testing method for the special-shaped solar cell module, the correction that the measured power is reduced due to the fact that the projection area of the special-shaped solar cell module is smaller than the actual area is achieved through the calculated power attenuation coefficient, and therefore the accuracy of the measured power of the special-shaped solar cell module is improved.
In this embodiment, a power testing apparatus for a special-shaped solar cell module is further provided, and the apparatus is used to implement the above embodiments and preferred embodiments, and the description of the apparatus is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
The embodiment provides a power test device for a special-shaped solar cell module, as shown in fig. 3, including:
the first obtaining module 31 is configured to obtain measured power of the special-shaped solar cell module corresponding to the plurality of light incident angles.
The second obtaining module 32 is configured to obtain the measured power of the corresponding planar solar cell module at a plurality of light incident angles; and the special-shaped solar cell module and the planar solar cell module are the same in material and area.
The first calculating module 33 is configured to calculate the measured power of the irregular-shaped solar cell module corresponding to the plurality of light incident angles, so as to obtain an average measured power of the irregular-shaped solar cell module.
The second calculating module 34 is configured to calculate an average value of the measured power of the planar solar cell module corresponding to the plurality of incident angles of the light rays, so as to obtain an average measured power of the planar solar cell module.
The third obtaining module 35 is configured to obtain the measured power of the special-shaped solar cell module corresponding to the preset light incident angle and the measured power of the planar solar cell module corresponding to the preset light incident angle.
The third calculating module 36 is configured to calculate a converted power by using the average measured power of the planar solar cell module, the measured power of the special-shaped solar cell module corresponding to the preset light incident angle, and the measured power of the planar solar cell module corresponding to the preset light incident angle.
And a fourth calculating module 37, configured to divide the average measured power of the special-shaped solar cell module by the converted power to obtain a power attenuation coefficient of the special-shaped solar cell module.
And a fifth calculating module 38, configured to multiply the measured power of the special-shaped solar cell module corresponding to the preset light incident angle by the power attenuation coefficient to obtain an actual power of the special-shaped solar cell module.
According to the power testing device of the special-shaped solar cell module, the correction that the measured power is reduced due to the fact that the projection area of the special-shaped solar cell module is smaller than the actual area is achieved through the calculated power attenuation coefficient, and therefore the accuracy of the measured power of the special-shaped solar cell module is improved.
The power testing apparatus of the profiled solar cell module in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and a memory executing one or more software or fixed programs, and/or other devices that can provide the above-mentioned functions.
Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.
The embodiment of the invention also provides data processing equipment which is provided with the power testing device of the special-shaped solar cell module shown in the figure 3.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a data processing apparatus according to an alternative embodiment of the present invention, and as shown in fig. 4, the data processing apparatus may include: at least one processor 41, such as a CPU (Central processing unit), at least one communication interface 43, memory 44, at least one communication bus 42. Wherein a communication bus 42 is used to enable the connection communication between these components. The communication interface 43 may include a Display (Display) and a Keyboard (Keyboard), and the optional communication interface 43 may also include a standard wired interface and a standard wireless interface. The Memory 44 may be a high-speed RAM Memory (volatile Random Access Memory) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 44 may alternatively be at least one memory device located remotely from the aforementioned processor 41. Wherein the processor 41 may be in connection with the apparatus described in fig. 3, an application program is stored in the memory 44, and the processor 41 calls the program code stored in the memory 44 for performing any of the above-mentioned method steps.
The communication bus 42 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 42 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 4, but this does not indicate only one bus or one type of bus.
The memory 44 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviation: HDD), or a solid-state drive (english: SSD); the memory 44 may also comprise a combination of the above-mentioned kinds of memories.
The processor 41 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of CPU and NP.
The processor 41 may further include a hardware chip, which may be an application-specific integrated circuit (ASIC), a programmable logic device (CP L D), or a combination thereof, and the P L D may be a complex programmable logic device (CP L D), a field-programmable gate array (FPGA), a general-purpose array logic (GA L), or any combination thereof.
Optionally, the memory 44 is also used to store program instructions. The processor 41 may call program instructions to implement the power testing method of the irregular solar cell module as shown in the embodiment of fig. 1 of the present application.
The embodiment of the invention also provides a computer-readable storage medium, wherein the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions can execute the power testing method of the special-shaped solar cell module in the method embodiment. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
The embodiment of the invention also provides a power test system of the special-shaped solar cell module, as shown in fig. 5, which comprises a power test device 20 and a data processing device 30.
And the power test equipment 20 is used for measuring the measurement power of the special-shaped solar cell module under a plurality of light incidence angles and the measurement power of the planar solar cell module under a plurality of light incidence angles. The solar cell module comprises a special-shaped solar cell module and a planar solar cell module which are made of materials and have the same area. When the power test device 20 performs the measurement, the measurement may be performed only by the power test device 20 itself, or the measurement may be performed by cooperation of the power test device 20 with another device. The power measurement modes of the special-shaped solar cell module and the planar solar cell module under a plurality of light incidence angles are not limited at all, and the measurement of the measurement power under the plurality of light incidence angles can be carried out only by ensuring that the special-shaped solar cell module and the planar solar cell module adopt the same power measurement mode.
Referring to fig. 5, the data processing device 30 is electrically connected to the power test device 20. For details of the data processing device 30, reference is made to the detailed description of the embodiment shown in fig. 4, which is not repeated herein.
Specifically, since the power test device 20 is tested based on the direct area of the solar cell module (i.e., the projected area in the light incidence direction) of the light, the projected area in the light incidence direction for the shaped solar cell module is smaller than the actual area of the shaped solar cell module toward the light incidence direction. Therefore, the measured power of the shaped solar cell module measured by the power testing device 20 is smaller than the actual power of the shaped solar cell module.
According to the power test system of the special-shaped solar cell module, the power test equipment is used for measuring the measured power of the special-shaped solar cell module and the measured power of the planar solar cell module under a plurality of light ray incidence angles; and processing the data measured by the power testing equipment by using the data processing equipment so as to correct the measured power of the special-shaped solar cell module and obtain the actual power of the special-shaped solar cell module, thereby improving the accuracy of the obtained power of the special-shaped solar cell module.
As an alternative implementation manner of this embodiment, as shown in fig. 6, the power testing system of the irregular solar cell module includes a rotating platform 10, a power testing device 20, and a data processing device 30.
The rotary platform 10 is used to fix the special-shaped solar cell module and the planar solar cell module, and drive the special-shaped solar cell module and the planar solar cell module to rotate. In the power measurement, the special-shaped solar cell module and the planar solar cell module may be respectively fixed on the rotating platform 10. The rotation of the rotary platform 10 drives the special-shaped solar cell module or the planar solar cell module fixed thereon to rotate.
Referring to fig. 2a to 2b, when light irradiates on the irregular-shaped solar cell module, the incident angle of the light irradiating on the irregular-shaped solar cell module is changed due to the rotation of the irregular-shaped solar cell module, so that the subsequent power testing device 20 can measure the measured power of the irregular-shaped solar cell module at different incident angles; similarly, when the light irradiates on the planar solar cell module, the incident angle of the light irradiating on the planar solar cell module is changed due to the rotation of the planar solar cell module, so that the subsequent power testing device 20 can measure the measurement power of the planar solar cell module at different incident angles.
Specifically, the special-shaped solar cell module is fixed on a rotary platform 10, and the rotary platform 10 drives the special-shaped solar cell module to rotate, for example, at a rotation angle of 0-180 °; the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles can be measured once when the special-shaped solar cell module rotates by 10 degrees; the measuring method of the measuring power of the planar solar cell module corresponding to the plurality of light incidence angles is the same as the measuring power of the special-shaped solar cell module corresponding to the plurality of light incidence angles.
The power testing device 20 is fixed with a light source, which is used for irradiating the special-shaped solar cell module or the planar solar cell module on the rotating platform 10, so that the special-shaped solar cell module or the planar solar cell module performs energy conversion, thereby generating current or voltage, and the generated current or voltage is measured by the power testing device 20, so as to obtain the measured power of the special-shaped solar cell module or the planar solar cell module.
The test system is realized by fixing the light source in the power test device 20, namely, the position of the light source relative to the power test device 20 is kept unchanged; different light incidence angles are simulated by the rotation of the rotary platform 10, and the incidence angles are adjusted by the rotary platform 10 instead of the power test equipment 20, so that the frequent rotation of the power test equipment 20 is avoided, and the service life of the power test equipment 20 is prolonged.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (8)
1. A power test method of a special-shaped solar cell module is characterized by comprising the following steps:
acquiring the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles;
acquiring the measurement power of the corresponding planar solar cell module under a plurality of light incidence angles; the special-shaped solar cell module and the planar solar cell module are made of the same material and have the same area;
calculating the measured power of the special-shaped solar cell module corresponding to the plurality of light incidence angles to obtain the average measured power of the special-shaped solar cell module;
calculating the average value of the measured power of the corresponding planar solar cell module under the plurality of light incidence angles to obtain the average measured power of the planar solar cell module;
acquiring the measurement power of the special-shaped solar cell module corresponding to a preset light incidence angle and the measurement power of the planar solar cell module corresponding to the preset light incidence angle;
calculating a converted power by using the average measured power of the planar solar cell module, the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the planar solar cell module corresponding to the preset light incidence angle;
dividing the average measured power of the special-shaped solar cell module by the converted power to obtain a power attenuation coefficient of the special-shaped solar cell module;
and multiplying the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.
2. The method of claim 1, wherein the reduced power is calculated using the formula:
wherein c' is the converted power; b' is the average measured power of the planar solar cell module; a is the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle; and b is the measured power of the corresponding planar solar cell module under the preset light incidence angle.
3. The utility model provides a power testing arrangement of dysmorphism solar module which characterized in that includes:
the first acquisition module is used for acquiring the measurement power of the corresponding special-shaped solar cell module under a plurality of light incidence angles;
the second acquisition module is used for acquiring the measurement power of the corresponding planar solar cell module under a plurality of light incidence angles; the special-shaped solar cell module and the planar solar cell module are made of the same material and have the same area;
the first calculation module is used for calculating the measured power of the special-shaped solar cell module corresponding to the plurality of light incidence angles so as to obtain the average measured power of the special-shaped solar cell module;
the second calculation module is used for calculating the average value of the measurement power of the corresponding planar solar cell module under the plurality of light incidence angles so as to obtain the average measurement power of the planar solar cell module;
the third acquisition module is used for acquiring the measurement power of the special-shaped solar cell module corresponding to a preset light incidence angle and the measurement power of the planar solar cell module corresponding to the preset light incidence angle;
the third calculation module is used for calculating the converted power by utilizing the average measured power of the planar solar cell module, the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the planar solar cell module corresponding to the preset light incidence angle;
the fourth calculation module is used for dividing the average measured power of the special-shaped solar cell module by the converted power to obtain the power attenuation coefficient of the special-shaped solar cell module;
and the fifth calculation module is used for multiplying the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.
4. A data processing apparatus, characterized by comprising: a memory and a processor, wherein the memory and the processor are communicatively connected with each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the power testing method of the specially-shaped solar cell module according to claim 1 or 2.
5. A computer-readable storage medium storing computer instructions for causing a computer to perform the method for power testing of an irregular shaped solar cell module according to claim 1 or 2.
6. A power test system of a special-shaped solar cell module is characterized by comprising:
a data processing apparatus as claimed in claim 4;
the power test equipment is electrically connected with the data processing equipment; the power test equipment is used for measuring the power of the special-shaped solar cell module under a plurality of light incidence angles and the power of the planar solar cell module under a plurality of light incidence angles, and sending the measurement result to the data processing equipment.
7. The system of claim 6, further comprising:
and the rotating platform is used for fixing the solar cell module and driving the special-shaped solar cell module or the planar solar cell module to rotate.
8. The system of claim 6 or 7, wherein the power test device comprises:
and the light source is fixedly arranged in the power test equipment and is used for irradiating the special-shaped solar cell module or the planar solar cell module.
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| CN201213137Y (en) * | 2008-07-15 | 2009-03-25 | 北京国通创安信息技术有限公司 | Specially shaped solar cell panel |
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| CN201213137Y (en) * | 2008-07-15 | 2009-03-25 | 北京国通创安信息技术有限公司 | Specially shaped solar cell panel |
| US20140333313A1 (en) * | 2013-05-13 | 2014-11-13 | Southwest Research Institute | Application independent map-based cycle life testing of battery cells |
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