CN111446924B - Power testing method and system for special-shaped solar cell module - Google Patents

Abstract

The invention relates to the field of solar cell technology, and specifically to a power testing method and system for special-shaped solar cell components. The method includes obtaining the measured power of corresponding special-shaped solar cell components and planar solar cell components under multiple light incident angles; calculating the special-shaped solar cell components The average measured power of battery modules and planar solar cell modules; obtain the measured power of the corresponding special-shaped solar cell modules and planar solar cell modules under the preset light incident angle; use the average measured power of the planar solar cell module and the preset light incident angle The corresponding measured power of the special-shaped solar cell module and the flat solar cell module is calculated, and the converted power is calculated; the power attenuation coefficient is calculated; the actual power of the special-shaped solar cell module is calculated using the power attenuation coefficient. This method realizes the correction of the measured power of the special-shaped solar cell module and improves the accuracy of the measured power.

Description

Power testing method and system for special-shaped solar cell modules

Technical field

The invention relates to the technical field of solar cells, and in particular to a power testing method and system for special-shaped solar cell components.

Background technique

With the continuous development of science and technology, the demand for energy has increased, energy depletion has become increasingly prominent, and new energy has become a global research hotspot. Photovoltaic power generation has become the most popular green energy due to its non-environmental pollution and inexhaustible supply.

Among them, the most important part of solar power generation is the solar cell module, which is used to convert solar energy into electrical energy. Therefore, the I-V characteristics of solar cell modules are particularly important. Before the solar cell modules leave the factory, their I-V characteristics need to be tested to calibrate the power of the solar cell modules.

In the prior art, I-V testing equipment is generally used to test the I-V characteristics of solar cell modules. When the I-V testing equipment performs the test, it simulates sunlight irradiating the solar cell module to obtain the I-V characteristic curve. However, since the I-V test equipment is tested based on the area of the direct sunlight point on the surface of the solar cell module. Therefore, the existing I-V test equipment can achieve accurate measurement of the power of planar solar cell modules; and corresponding to some special-shaped solar cell modules (the special shape is a special shape in the concept of space such as a curved surface shape, rather than a special shape in the flat concept) ), because the projected area of these special-shaped solar cell modules in the direction of incident sunlight is smaller than the actual area of the special-shaped solar cell module, this will lead to low accuracy of the power tested by the existing I-V testing equipment.

Contents of the invention

In view of this, embodiments of the present invention provide a power testing system for special-shaped solar cell modules to solve the problem of low accuracy in testing the power of special-shaped solar cell modules in the prior art.

Embodiments of the present invention provide a power testing method for special-shaped solar cell components, including:

Obtain the measured power of the corresponding special-shaped solar cell components under multiple light incident angles;

Obtain the measured power of the corresponding planar solar cell module under multiple light incident angles; wherein the special-shaped solar cell module and the planar solar cell module are made of the same material and area;

Calculate the measured power of the corresponding special-shaped solar cell module under the multiple light incident angles to obtain the average measured power of the special-shaped solar cell module;

Calculate the average value of the measured power of the corresponding planar solar cell module under the multiple light incident angles to obtain the average measured power of the planar solar cell module;

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;

Utilize the average measured power of the planar solar cell component, the measured power of the corresponding special-shaped solar cell component under the preset light incident angle, and the measurement of the corresponding planar solar cell component under the preset light incident angle. Power, calculate the converted power;

Divide 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;

The actual power of the special-shaped solar cell module is obtained by multiplying the measured power of the special-shaped solar cell module at the preset light incident angle by the power attenuation coefficient.

The power testing method of the special-shaped solar cell module provided by the embodiment of the present invention uses the calculated power attenuation coefficient to correct the measurement power that is smaller due to the projected area of the special-shaped solar cell module being smaller than the actual area, thereby improving the measured power. The power accuracy of the special-shaped solar cell module is obtained.

Combined with the first aspect, in the first implementation manner of the first aspect, the following formula is used to calculate the converted power:

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 incident angle; b is the The corresponding measured power of the planar solar cell module at a preset light incident angle.

According to the second aspect, an embodiment of the present invention also provides a power testing device for special-shaped solar cell modules, including:

The first acquisition module is used to acquire the measured power of corresponding special-shaped solar cell components at multiple light incident angles;

The second acquisition module is used to obtain the measured power of the corresponding planar solar cell module under multiple light incident angles; wherein the special-shaped solar cell module and the planar solar cell module are made of the same material and area;

The first calculation module is used to calculate the measured power of the corresponding special-shaped solar cell module under the multiple light incident angles to obtain the average measured power of the special-shaped solar cell module;

The second calculation module is used to calculate the average value of the measured power of the corresponding planar solar cell module under the multiple light incident angles to obtain the average measured power of the planar solar cell module;

The third acquisition module is used to obtain the measured power of the corresponding special-shaped solar cell module under the preset light incident angle and the measured power of the corresponding planar solar cell module under the preset light incident angle;

The third calculation module is used to use the average measured power of the planar solar cell component, the measured power of the special-shaped solar cell component corresponding to the preset light incident angle, and the corresponding measured power of the preset light incident angle. Describe the measured power of the planar solar cell module and calculate the converted power;

The fourth calculation module is used to divide 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;

The fifth calculation module is used to multiply the measured power of the special-shaped solar cell module at the preset light incident angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.

The power testing device of the special-shaped solar cell module provided by the embodiment of the present invention uses the calculated power attenuation coefficient to correct the measurement power that is smaller due to the projected area of the special-shaped solar cell module being smaller than the actual area, thereby improving the measured power. The power accuracy of the special-shaped solar cell module is obtained.

According to a third aspect, an embodiment of the present invention further provides a data processing device, including: a memory and a processor, the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the The processor executes the computer instructions to execute the power testing method of the special-shaped solar cell module described in the first aspect of the present invention or the first embodiment of the first aspect.

According to a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions, and the computer instructions are used to cause the computer to execute the first aspect of the present invention. The power testing method of the special-shaped solar cell module described in one aspect or the first embodiment of the first aspect.

According to the fifth aspect, embodiments of the present invention also provide a power testing system for special-shaped solar cell modules, including:

The data processing device described in the third aspect of the invention;

Power testing equipment, electrically connected to the data processing equipment; the power testing equipment is used to measure the power of special-shaped solar cell components under multiple light incidence angles and the power of planar solar cell components under multiple light incidence angles, and The measurement results are sent to the data processing device.

The power testing system for special-shaped solar cell components provided by embodiments of the present invention uses power testing equipment to measure the measured power of special-shaped solar cell components and planar solar cell components under multiple light incident angles; and then uses data processing equipment to convert the power testing equipment into The measured data is processed 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.

Combined with the fifth aspect, the first implementation manner of the fifth aspect also includes:

A rotating platform is used to fix the solar cell module and drive the special-shaped solar cell module or the planar solar cell module to rotate.

The power testing system for special-shaped solar cell modules provided by embodiments of the present invention fixes special-shaped solar cell modules or flat solar cell modules on a rotating platform, and uses the rotation of the rotating platform to simulate multiple incident angles of light irradiating onto it, thereby This enables the power test equipment to measure the power of special-shaped solar cell modules or flat solar cell modules under multiple light incident angles, providing a basis for subsequent calculation of the actual power of special-shaped solar cell modules.

With reference to the fifth aspect or the first implementation manner of the fifth aspect, in the second implementation manner of the fifth aspect, the power testing equipment includes:

A light source is fixedly installed in the power testing equipment and used to illuminate the special-shaped solar cell module or the planar solar cell module.

The power testing system for special-shaped solar cell modules provided by embodiments of the present invention fixes the light source in the power testing equipment, that is, the position of the light source relative to the power testing equipment remains unchanged; when the light source illuminates the solar cell module, the rotation of the rotating platform is used Different light incident angles are simulated, and the light incident angle is adjusted by rotating the platform instead of the power testing equipment, thus avoiding frequent rotation of the power testing equipment and improving the service life of the power testing equipment.

Description of the drawings

In order to more clearly explain the specific embodiments of the present invention or the technical solutions in the prior art, the accompanying drawings that need to be used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description The drawings illustrate some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 shows a flow chart of a power testing method for special-shaped solar cell modules in an embodiment of the present invention;

Figures 2a to 2d are schematic diagrams showing the relationship between the incident angle of light and special-shaped solar cell components in embodiments of the present invention;

Figure 3 shows a schematic structural diagram of a power testing device for special-shaped solar cell modules in an embodiment of the present invention;

Figure 4 shows a schematic structural diagram of a data processing device in an embodiment of the present invention;

Figure 5 shows a schematic structural diagram of a power testing system for special-shaped solar cell modules in an embodiment of the present invention;

Figure 6 shows another structural schematic diagram of a power testing system for special-shaped solar cell modules in an embodiment of the present invention;

Reference signs: 10-rotating platform; 20-power test equipment; 30-data processing equipment; 41-processor; 42-communication bus; 43-communication interface; 44-memory.

Detailed ways

In order to make the purpose, 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 in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of protection of the present invention.

According to an embodiment of the present invention, an embodiment of a power testing method for special-shaped solar cell components is provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. , and, although a logical order is shown in the flowchart diagrams, in some cases the steps shown or described may be performed in an order different from that herein.

An embodiment of the present invention provides a power testing method for special-shaped solar cell components, as shown in Figure 1, including:

S11, obtain the measured power of the corresponding special-shaped solar cell module under multiple light incident angles.

Please describe in detail the multiple light incident angles in conjunction with Figure 2a to Figure 2d. Among them, the special-shaped solar cell module is hemispherical as an example. Figures 2a to 2d show that the special-shaped solar cell module rotates clockwise along the 0 point with the 0x axis as the rotation axis. During the rotation of the special-shaped solar cell module, the light remains unchanged. The light incident angle in Figure 2a is defined as 0°, and the light incident angle is defined as the rotation angle of the special-shaped solar cell module. Then as the special-shaped solar cell module rotates, the light incident angle changes. As shown in Figure 2b, the light incident angle is equivalent to the rotation angle β of the special-shaped solar cell module; as shown in Figure 2c, the rotation angle of the special-shaped solar cell module is 90°, and the corresponding light incident angle is 90°; as shown in Figure 2d It shows that the rotation angle of the special-shaped solar cell module is 180°, and the corresponding light incident angle is 180°.

In addition, optionally, the definition of the light incident angle can be that the position of the solar cell module (special-shaped solar cell module and planar solar cell module) remains unchanged, and the light position changes; the definition of the light incident angle can also be the definition of the solar cell module (special-shaped solar cell module and planar solar cell module). The position of solar cell modules and planar solar cell modules changes and the light position changes, etc. Just ensure that the same definition of light incident angle is used for special-shaped solar cell modules and flat solar cell modules.

After determining the definition of the light incident angle, the measured power of the corresponding special-shaped solar cell modules under multiple light incident angles can be measured through the power testing equipment. Among them, multiple light incident angles can be measured every 10° from 0° to 180°. For example, multiple light incident angles are 0°, 10°, 20°, ..., 170°, 180°. Specifically, when the light incident angle is 0°, use the power testing equipment to measure the measured power of the special-shaped solar cell module; when the light incident angle is 10°, use the power testing equipment to measure the measured power of the special-shaped solar cell module; when the light incident angle is 20° °, use the power test equipment to measure the measured power of the special-shaped solar cell module; ...; and so on, until the light incident angle is 180°, use the power test equipment to measure the measured power of the special-shaped solar cell module, thereby obtaining multiple light rays The measured power of the corresponding special-shaped solar cell module at the incident angle. The digital processing equipment obtains the measured power of the corresponding special-shaped solar cell components at multiple light incident angles, which is used to subsequently determine the actual power of the special-shaped solar cell components.

S12, obtain the measured power of the corresponding planar solar cell module under multiple light incident angles.

Wherein, the materials and area of the special-shaped solar cell module and the planar solar cell module are the same.

Figures 2a to 2d only show the light incident angle for the special-shaped solar cell module. The definition of the light incident angle for the planar solar cell module is the same as the definition of the light incident angle for the special-shaped solar cell module.

For example, if the incident angles of multiple light rays corresponding to special-shaped solar cell modules are 0°, 10°, 20°,..., 170°, 180°, then the multiple incident angles of light rays corresponding to flat solar cell modules are also 0°. ,10°,20°,…,170°,180°. Similarly, use power testing equipment to measure the measured power of the planar solar cell module; when the light incident angle is 10°, use the power testing equipment to measure the measured power of the planar solar cell module; when the light incident angle is 20°, use the power testing equipment to measure The measured power of the planar solar cell module; ...; and so on, until the power test equipment is used to measure the measured power of the planar solar cell module when the light incident angle is 180°, thereby obtaining the corresponding planar solar cells under multiple light incident angles. The measured power of the component. The digital processing equipment obtains the measured power of the corresponding flat solar cell components at multiple light incident angles, which is used to determine the actual power of the subsequent special-shaped solar cell components.

S13. Calculate the measured power of the corresponding special-shaped solar cell module under multiple light incident angles to obtain the average measured power of the special-shaped solar cell module.

The data processing device calculates the average measured power of the corresponding special-shaped solar cell components under multiple light incident angles to obtain the average measured power of the special-shaped solar cell component.

S14: Calculate the average value of the measured power of the corresponding planar solar cell module under multiple light incident angles to obtain the average measured power of the planar solar cell module.

The data processing device calculates the average value of the measured power of the corresponding planar solar cell components under multiple light incident angles to obtain the average measured power of the planar solar cell component.

S15: Obtain the measured power of the corresponding special-shaped solar cell module under the preset light incident angle and the measured power of the corresponding flat solar cell module under the preset light incident angle.

For special-shaped solar cell modules and flat solar cells, the preset light incident angle is the same. For example, if it is necessary to correct the measured power of a special-shaped solar cell module with a light incident angle of 45°, then the corresponding preset light incident angle is 45°; if it is necessary to correct the measured power of a special-shaped solar cell module with a light incident angle of 60°, then the corresponding preset light incident angle is 60°. Therefore, the preset light incident angle is the light incident angle corresponding to the measured power of the special-shaped solar cell module to be corrected.

Use power testing equipment to measure the measured power of the corresponding special-shaped solar cell module under the preset light incident angle and the measured power of the corresponding flat solar cell module under the preset light incident angle. The data processing equipment obtains the measured power of the corresponding special-shaped solar cell module under the preset light incident angle and the measured power of the corresponding flat solar cell module under the preset light incident angle, which are used to determine the actual power of the special-shaped solar cell module in the subsequent.

S16, calculate the converted power 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 incident angle, and the measured power of the corresponding planar solar cell module under the preset light incident angle.

When the data processing equipment calculates the converted power, taking into account the test error caused by the power test equipment, the following formula can be used to calculate the converted power:

c' is the converted 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 at the preset light incident angle; b is the preset light incident angle. The measured power of the corresponding flat solar cell module at the angle; ΔC is the coefficient corresponding to the test error. This coefficient can be set specifically according to the actual situation and is not limited here.

As an optional implementation of this embodiment, the following formula can also be used to calculate the converted power:

S17, divide the average measured power of the special-shaped solar cell module and the converted power to obtain the power attenuation coefficient of the special-shaped solar cell module.

Specifically, the following formula can be used to calculate the power attenuation coefficient of the special-shaped solar cell module:

Wherein, a' is the average measured power of the special-shaped solar cell module; α is the power attenuation coefficient of the special-shaped solar cell module; c' is the converted power.

S18, multiply the measured power of the corresponding special-shaped solar cell module at the preset light incident angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.

The data processing equipment uses the measured power of the corresponding special-shaped solar cell module at the preset light incident angle obtained in S15 and multiplies the power attenuation coefficient calculated in S17 to obtain the actual power of the special-shaped solar cell module. The actual power of the special-shaped solar cell module is the actual power of the measured power of the corresponding special-shaped solar cell module under the preset light incident angle.

The power testing method of the special-shaped solar cell module provided in this embodiment uses the calculated power attenuation coefficient to correct the measurement power that is smaller due to the projected area of the special-shaped solar cell module being smaller than the actual area, thereby improving the measured power. The power accuracy of special-shaped solar modules.

This embodiment also provides a power testing device for a special-shaped solar cell module, which is used to implement the above embodiments and preferred implementations. What has already been described will not be described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, implementation in hardware, or a combination of software and hardware, is also possible and contemplated.

This embodiment provides a power testing equipment for special-shaped solar cell components, as shown in Figure 3, including:

The first acquisition module 31 is used to acquire the measured power of corresponding special-shaped solar cell components at multiple light incident angles.

The second acquisition module 32 is used to acquire the measured power of the corresponding planar solar cell module under multiple light incident angles; wherein the special-shaped solar cell module and the planar solar cell module are made of the same material and area.

The first calculation module 33 is used to calculate the measured power of the corresponding special-shaped solar cell module under the multiple light incident angles to obtain the average measured power of the special-shaped solar cell module.

The second calculation module 34 is used to calculate the average value of the measured power of the corresponding planar solar cell module under the multiple light incident angles to obtain the average measured power of the planar solar cell module.

The third acquisition module 35 is used to obtain the measured power of the corresponding special-shaped solar cell component under a preset light incident angle and the corresponding measured power of the planar solar cell component under the preset light incident angle.

The third calculation module 36 is used to utilize 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 corresponding measured power of the special-shaped solar cell module under the preset light incident angle. The measured power of the planar solar cell module is calculated as the converted power.

The fourth calculation module 37 is used to divide 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.

The fifth calculation module 38 is configured to multiply the measured power of the special-shaped solar cell module at the preset light incident angle by the power attenuation coefficient to obtain the actual power of the special-shaped solar cell module.

The power testing device of the special-shaped solar cell module provided by the embodiment of the present invention uses the calculated power attenuation coefficient to correct the measurement power that is smaller due to the projected area of the special-shaped solar cell module being smaller than the actual area, thereby improving the measured power. The power accuracy of the special-shaped solar cell module is obtained.

The power test device for special-shaped solar cell modules in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC circuit, a processor and memory that executes one or more software or fixed programs, and/or other devices that can Devices that provide the above functionality.

Further functional descriptions of each of the above modules are the same as those in the above corresponding embodiments, and will not be described again here.

An embodiment of the present invention also provides a data processing equipment having the power testing device of the special-shaped solar cell module shown in FIG. 3 .

Please refer to Figure 4. Figure 4 is a schematic structural diagram of a data processing device provided by an optional embodiment of the present invention. As shown in Figure 4, the data processing device may include: at least one processor 41, such as a CPU (Central Processing Unit). central processing unit), at least one communication interface 43, memory 44, and at least one communication bus 42. Among them, the communication bus 42 is used to realize connection communication between these components. Among them, the communication interface 43 may include a display screen (Display) and a keyboard (Keyboard), and the optional communication interface 43 may also include a standard wired interface and a wireless interface. The memory 44 may be a high-speed RAM memory (Random Access Memory, volatile random access memory) or a non-volatile memory (non-volatile memory), such as at least one disk memory. The memory 44 may optionally be at least one storage device located remotely from the aforementioned processor 41 . The processor 41 can be combined with the device described in FIG. 3 , the memory 44 stores an application program, and the processor 41 calls the program code stored in the memory 44 to execute any of the above 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 can be divided into an address bus, a data bus, a control bus, etc. For ease of presentation, only one thick line is used in Figure 4, but it does not mean that there is only one bus or one type of bus.

Among them, the memory 44 may include volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); the memory may also include non-volatile memory (English: non-volatile memory). memory), such as flash memory (English: flash memory), hard disk (English: hard diskdrive, abbreviation: HDD) or solid-state drive (English: solid-state drive, abbreviation: SSD); the memory 44 may also include the above types of memory The combination.

The processor 41 may be a central processing unit (English: central processing unit, abbreviation: CPU), a network processor (English: network processor, abbreviation: NP) or a combination of CPU and NP.

The processor 41 may further include a hardware chip. The above-mentioned hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The above-mentioned PLD can be a complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD), a field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA), a general array logic (English: generic array logic , abbreviation: GAL) or any combination thereof.

Optionally, memory 44 is also used to store program instructions. The processor 41 can call program instructions to implement the power testing method of special-shaped solar cell modules as shown in the embodiment of FIG. 1 of this application.

Embodiments of the present invention also provide a computer-readable storage medium that stores computer-executable instructions. The computer-executable instructions can execute the power testing method of the special-shaped solar cell module in the above method embodiment. Wherein, the storage medium can 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). Disk Drive (abbreviation: HDD) or solid-state drive (Solid-State Drive, SSD), etc.; the storage medium may also include a combination of the above types of memories.

An embodiment of the present invention also provides a power testing system for special-shaped solar cell components, as shown in FIG. 5 , including a power testing device 20 and a data processing device 30 .

The power testing equipment 20 is used to measure the measured power of special-shaped solar cell modules under multiple light incident angles and the measured power of planar solar cell modules under multiple light incident angles. Among them, the solar cell modules include special-shaped solar cell modules and flat solar cell modules with the same material and area. When the power test equipment 20 is measuring, the power test equipment 20 may only be used for measurement, or the power test equipment 20 may be used in cooperation with other equipment for measurement. There are no restrictions on the power measurement methods of special-shaped solar cell modules and planar solar cell modules under multiple light incident angles. It only needs to ensure that the special-shaped solar cell modules and planar solar cell modules use the same power measurement method for multiple measurements. Just measure the power at the incident angle of light.

Referring to FIG. 5 , the data processing device 30 is electrically connected to the power testing device 20 . For specific details about the data processing device 30, please refer to the detailed description of the embodiment shown in FIG. 4, which will not be described again here.

Specifically, since the power testing equipment 20 performs testing based on the direct area of light on the solar cell component (ie, the projected area along the light incident direction), and for special-shaped solar cell components, the projection along the light incident direction The area is smaller than the actual area of the special-shaped solar cell module facing the direction of light incidence. Therefore, the measured power of the special-shaped solar cell module measured by the power testing equipment 20 is smaller than the actual power of the special-shaped solar cell module.

The power testing system for special-shaped solar cell components provided by embodiments of the present invention uses power testing equipment to measure the measured power of special-shaped solar cell components and planar solar cell components under multiple light incident angles; and then uses data processing equipment to convert the power testing equipment into The measured data is processed 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 optional implementation of this embodiment, as shown in FIG. 6 , a power testing system for special-shaped solar cell modules includes a rotating platform 10 , a power testing equipment 20 and a data processing equipment 30 .

Among them, the rotating platform 10 is used to fix special-shaped solar cell modules and planar solar cell modules, and drive the rotation of special-shaped solar cell modules and planar solar cell modules. During power measurement, the special-shaped solar cell module and the flat solar cell module may be fixed on the rotating platform 10 respectively. The rotation of the rotating platform 10 drives the rotation of the special-shaped solar cell module or the flat solar cell module fixed thereon.

Please refer to Figure 2a to Figure 2b. When light shines on the special-shaped solar cell module, due to the rotation of the special-shaped solar cell module, the incident angle of the light shining on the special-shaped solar cell module will change, so that the subsequent power testing equipment 20 is It can measure the measured power of special-shaped solar cell modules under different light incident angles; similarly, when light shines on a flat solar cell module, due to the rotation of the flat solar cell module, the light shining on the flat solar cell module will be incident. The angle changes, so that the subsequent power testing equipment 20 can measure the measured power of the planar solar cell module under different light incident angles.

Specifically, the special-shaped solar cell module is fixed on the rotating platform 10, and the rotating platform 10 drives the special-shaped solar cell module to rotate. For example, the rotation angle is 0-180°; one measurement can be performed every 10° of rotation, and multiple measurements can be obtained. The measured power of the corresponding special-shaped solar cell module under multiple light incident angles; the measurement method of the measured power of the corresponding flat solar cell module under multiple light incident angles is the same as the measured power of the corresponding special-shaped solar cell module under multiple light incident angles .

A light source is fixed in the power testing equipment 20, and the light source is used to illuminate 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 generating The current or voltage is measured by the power testing equipment 20, and the measured power of the special-shaped solar cell module or flat solar cell module can be obtained.

In this test system, the light source is fixed in the power test equipment 20, that is, the position of the light source relative to the power test equipment 20 remains unchanged; the rotation of the rotating platform 10 is used to simulate different light incident angles, and the rotating platform 10 is used instead of the power test. The device 20 adjusts the incident angle, thereby avoiding frequent rotation of the power testing device 20 and improving the service life of the power testing device 20 .

Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope of the appended rights. within the scope of the requirements.

Claims (8)

1. The power testing method of the special-shaped solar cell module is characterized by comprising the following steps of:

acquiring the measured power of the special-shaped solar cell module corresponding to the incidence angles of the plurality of light rays;

obtaining the measured power of a planar solar cell module corresponding to a plurality of light incidence angles; wherein the material and the area of the special-shaped solar cell module are the same as those of the planar solar cell module;

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 planar solar cell module corresponding to the plurality of light incidence angles to obtain the average measured power of the planar solar cell module;

acquiring 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;

calculating 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 converted 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; b is the measured power of the planar solar cell module corresponding to the preset light incidence angle.

3. A power testing device for a shaped solar cell module, comprising:

the first acquisition module is used for acquiring the measured power of the special-shaped solar cell module corresponding to the plurality of light incidence angles;

the second acquisition module is used for acquiring the measured power of the corresponding planar solar cell module under the incident angles of a plurality of light rays; wherein the material and the area of the special-shaped solar cell module are the same as those of the planar solar cell module;

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 measured power of the planar solar cell module corresponding to the plurality of light incidence angles so as to obtain the average measured power of the planar solar cell module;

the third acquisition module is used for acquiring the measured power of the special-shaped solar cell module corresponding to the preset light incidence angle and the measured power of the plane 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 with the converted power to obtain a power attenuation coefficient of the special-shaped solar cell module;

and a fifth calculation module, configured to multiply the power attenuation coefficient by the measured power of the shaped solar cell module corresponding to the preset light incidence angle, so as to obtain the actual power of the shaped solar cell module.

4. A data processing apparatus, comprising: the power testing method of the special-shaped solar cell module according to claim 1 or 2 comprises the steps of storing computer instructions in a memory and a processor, wherein the memory and the processor are in communication connection, and the processor executes the computer instructions so as to execute the power testing method of the special-shaped solar cell module according to the memory.

5. A computer-readable storage medium, characterized in that the computer-readable storage medium stores computer instructions for causing the computer to execute the power testing method of the shaped solar cell assembly according to claim 1 or 2.

6. A power testing system for a shaped solar cell module, comprising:

a data processing apparatus as claimed in claim 4;

the power testing device is electrically connected with the data processing device; the power testing device is used for measuring the power of the special-shaped solar cell module under the incidence angles of the light rays and the power of the plane solar cell module under the incidence angles of the light rays, and sending the measurement results to the data processing device.

7. The system of claim 6, further comprising:

the rotating platform is used for fixing the solar cell module and driving the special-shaped solar cell module or the plane solar cell module to rotate.

8. The system according to claim 6 or 7, wherein the power testing device comprises:

the light source is fixedly arranged in the power test equipment and used for irradiating the special-shaped solar cell module or the plane solar cell module.