Photovoltaic module power measurement device
The photovoltaic module power measurement device, which integrates a light recovery chamber and a simulator flash chamber, solves the problem of wasted equipment and time during photovoltaic module measurement, achieves efficient and accurate photovoltaic module power measurement, and reduces testing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGWEI SOLAR ENERGY (CHENGDU) CO LID
- Filing Date
- 2025-06-26
- Publication Date
- 2026-07-14
AI Technical Summary
In existing technologies, photovoltaic modules require the use of photovoltaic LID test boxes and solar simulators when measuring power, which leads to waste of equipment, manpower and time. In addition, the light recovery process is time-consuming and cannot accurately reflect the actual operating power.
Design a photovoltaic module power measurement device, comprising a light recovery chamber and a simulator flash chamber. The photovoltaic module is automatically fed by a feeding device, and the device integrates light recovery and power measurement by combining temperature regulation and light source control.
It significantly improves the efficiency and accuracy of photovoltaic module power measurement, saves time and costs, reduces equipment and labor requirements, and can more accurately reflect the actual operating power.
Smart Images
Figure CN224503330U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of photovoltaic technology, and in particular to a photovoltaic module power measurement device. Background Technology
[0002] The most important indicators for photovoltaic (PV) modules are low cost and high efficiency. PV modules that meet the criteria of low cost and better power generation performance, such as TOPCon modules, HJT modules, and BC modules, have become the research and development direction in the PV field. These high-efficiency PV modules exhibit a "light recovery" phenomenon. The "light recovery" phenomenon is as follows: Assuming the PV module is freshly manufactured in the factory, its power is denoted as P1; after the PV module is installed in the power station and exposed to sunlight, its power will increase for a period of time, denoted as P2; after the PV module has been running for a period of time, its power will decrease, denoted as P3. At this point, the PV module is removed from the power station and returned to the factory for power testing. The return process generally takes more than 10 days. Immediately upon return, the PV module's power will decrease further, denoted as P4; before measuring the power after the PV module has returned to the factory, it is exposed to a certain amount of sunlight, and the PV module's power will recover significantly. The measured power at this point is denoted as P5, which is approximately equal to P3. In actual operating conditions, the power of a high-efficiency PV module is generally between P2 and P3. Whether measured at the factory or immediately upon return, the power output figures are lower than the actual power output under operating conditions. Photovoltaic modules are sold based on their power output figures. If the measured power output is lower than the actual power output under operating conditions, it will cause photovoltaic module manufacturers to underestimate the product's value at the time of shipment, and it will also cause photovoltaic module consumers to overestimate the product's degradation value when returning it for measurement.
[0003] Currently, after photovoltaic (PV) modules are returned to the factory, they are first placed in a PV LID (Light-induced Degradation) test chamber to receive sunlight for a period of time before being placed in a solar simulator to measure their power. The PV LID test chamber and the solar simulator are two completely different pieces of equipment. Therefore, the PV modules must first enter the LID chamber for processing before being moved to the solar simulator, a process that is labor-intensive and time-consuming. Due to the design of the LID test chamber, the minimum irradiation time is 15 minutes, during which time the PV module temperature has already risen to 50°C. However, the PV modules need to be at 25°C to measure their power in the solar simulator, so it takes about 2 hours to cool them down, which is also time-consuming. Light recovery only requires a low light intensity and a short illumination time, while the LID test chamber has a very high light intensity. Therefore, using the LID test chamber for light recovery results in a waste of equipment. Utility Model Content
[0004] Therefore, it is necessary to provide a photovoltaic module power measurement device that can save measurement time and reduce testing costs.
[0005] One embodiment of this application provides a photovoltaic module power measurement device.
[0006] A photovoltaic module power measurement device, comprising:
[0007] A light recovery device, comprising a light recovery chamber and a first light source, wherein the light recovery chamber has a light recovery inlet and a light recovery outlet, and the first light source is disposed within the light recovery chamber;
[0008] A simulator flash device includes a simulator flash chamber and a second light source. The simulator flash chamber has a simulator flash inlet and a simulator flash outlet. The simulator flash inlet is located near the light recovery outlet. The second light source is disposed inside the simulator flash chamber.
[0009] The feeding device has a transmission path that passes through the optical recovery chamber and the simulator flash chamber, and extends along the optical recovery inlet, the optical recovery outlet, the simulator flash inlet and the simulator flash outlet.
[0010] In some embodiments, the light restoration device further includes a temperature regulating component connected to the light restoration chamber to regulate the temperature of the light restoration chamber.
[0011] In some embodiments, the temperature regulating component includes an air conditioner, and the light recovery chamber is further provided with an air conditioner inlet and an air conditioner outlet.
[0012] In some embodiments, the first light source is positioned at the top of the light recovery chamber.
[0013] In some embodiments, the first light source includes one or more of LED lamps, xenon lamps, and metal halide lamps.
[0014] In some embodiments, the wavelength range of the light emitted by the first light source includes at least 280 nm to 400 nm.
[0015] In some embodiments, the light restoration device further includes a first heat-insulating curtain, which is connected to both the light restoration inlet and the light restoration outlet.
[0016] In some embodiments, the second light source is positioned at the top of the simulator flash chamber.
[0017] In some embodiments, the second light source includes one or more of LED lamps, xenon lamps, and metal halide lamps.
[0018] In some embodiments, the wavelength range of the light emitted by the second light source includes at least 280 nm to 1200 nm.
[0019] In some embodiments, the simulator flash device further includes a light-absorbing layer, and the inner sidewalls of the simulator flash chamber are respectively connected to the light-absorbing layer.
[0020] In some embodiments, the simulator flashing device further includes a second insulated curtain, which is connected to both the simulator flashing entrance and the simulator flashing exit.
[0021] In some embodiments, the feeding device includes a support frame, rollers, and a feeding drive component. The support frame extends along the light recovery inlet, the light recovery outlet, the simulator flash inlet, and the simulator flash outlet. A plurality of rollers are sequentially distributed on the support frame along the transmission path direction. The feeding drive component is connected to the rollers and drives the rollers to rotate.
[0022] In some embodiments, the photovoltaic module power measurement device further includes an insulating housing, and the outer walls of the light recovery chamber and / or the simulator flash chamber are respectively connected to the insulating housing.
[0023] In some embodiments, the photovoltaic module power measurement device further includes a buffer device, which includes a buffer chamber having a buffer inlet and a buffer outlet. The buffer chamber is disposed between the light recovery chamber and the simulator flash chamber. The transmission path of the feeding device passes through the light recovery chamber, the buffer chamber, and the simulator flash chamber, and extends along the light recovery inlet, the light recovery outlet, the buffer inlet, the buffer outlet, the simulator flash inlet, and the simulator flash outlet.
[0024] In some embodiments, a plurality of simulator flash chambers are disposed downstream of the buffer chamber.
[0025] In some embodiments, the buffer device further includes a third insulated curtain, which is connected to the buffer inlet and buffer outlet respectively.
[0026] The photovoltaic module power measurement device of this application can be used for photovoltaic module power measurement. During measurement, it saves time, has low equipment requirements, and reduces testing costs. Specifically, this application includes a light recovery chamber and a simulator flash chamber. A feeding device enables automatic transport of the photovoltaic module into and out of these chambers. The light recovery chamber has a temperature control function and can be equipped with a reference device that has the same temperature characteristics as the photovoltaic module under test for temperature adjustment, instead of simply controlling the ambient temperature, eliminating the need for time-consuming cooling of the photovoltaic module as in traditional technologies. The light recovery chamber and the simulator flash chamber are directly connected and exchanged via the feeding device, improving transport efficiency and eliminating the need for manual material handling, thus saving labor costs.
[0027] The aforementioned photovoltaic module power measurement device has the following beneficial effects:
[0028] (1) The power and wavelength range of the first light source in the light recovery chamber can be selected according to the requirements of different photovoltaic modules, which can reduce the cost of the first light source. For example, the wavelength range of the first light source in the light recovery chamber should include at least 280nm~400nm, and the first light source in this wavelength range has good economic benefits.
[0029] (2) The duration of irradiation of photovoltaic modules in the light recovery chamber can be selected according to the requirements of different photovoltaic modules, which can improve the testing efficiency.
[0030] (3) The light recovery chamber has a temperature adjustment function, which can keep the photovoltaic module at the same temperature as the power measurement during the light recovery process, eliminating the need to wait for cooling and significantly improving the testing efficiency.
[0031] (4) After light recovery, the photovoltaic module can be automatically moved to the simulator flash chamber by the feeding device and the power measurement can be performed immediately, which shortens the photovoltaic module transfer time and can significantly improve the testing efficiency and accuracy.
[0032] (5) By setting up a buffer chamber, several photovoltaic modules that have completed light recovery can queue up in the buffer chamber and enter the simulator flash chamber in turn to measure power, thereby improving the testing efficiency. Furthermore, by setting up several simulator flash chambers downstream of the buffer chamber, multiple simulator flash chambers can be used for synchronous testing, thereby improving the testing efficiency. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.
[0035] Figure 1 This is a schematic diagram of a photovoltaic module power measurement device according to an embodiment of this application;
[0036] Figure 2 This is a schematic diagram of the light recovery device of the photovoltaic module power measurement device according to an embodiment of this application;
[0037] Figure 3 This is another schematic diagram of the light recovery device of the photovoltaic module power measurement device according to an embodiment of this application;
[0038] Figure 4 This is a schematic diagram of the simulator flashing device of the photovoltaic module power measurement device according to an embodiment of this application;
[0039] Figure 5 This is a schematic diagram of a photovoltaic module power measurement device according to another embodiment of this application.
[0040] Explanation of reference numerals in the attached figures
[0041] 10. Photovoltaic module power measurement device; 100. Light recovery device; 110. Light recovery chamber; 111. Light recovery inlet; 112. Light recovery outlet; 113. Air conditioning inlet; 114. Air conditioning outlet; 120. First light source; 130. First heat-insulating curtain; 200. The simulator flashing device; 210. Simulator flashing chamber; 211. Simulator flashing inlet; 212. Simulator flashing outlet; 220. Second light source; 230. Light-absorbing layer; 240. Second heat-insulating curtain; 300. Feeding device; 310. Support frame; 320. Roller; 400. Heat-insulating shell; 500. Buffer device; 20. Photovoltaic module. Detailed Implementation
[0042] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0044] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0045] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0046] In the description of this application, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0047] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0048] In this document, "optionally," "optionally," and "optional" mean that something is optional, that is, it is selected from either "with" or "without." If multiple "options" appear in a technical solution, unless otherwise specified and there are no contradictions or mutual constraints, each "option" is independent. In this application, descriptions such as "optionally contains" and "optionally includes" indicate "contains or does not contain."
[0049] In this application, "light-receiving surface or front side" and "backlighting surface or back side" are used only to distinguish the positions of the two opposing surfaces of the battery substrate. In actual operating conditions, the "light-receiving surface" is the surface of the battery substrate that primarily receives light, but the "backlighting surface" does not necessarily not receive light. In fact, due to the presence of diffuse reflection, the "backlighting surface" can also receive light in actual operating conditions.
[0050] In this application, when numerical intervals (i.e., numerical ranges) are mentioned, unless otherwise specified, the distribution of selectable numerical values within the numerical interval is considered continuous, and includes the two endpoints of the numerical interval (i.e., the minimum and maximum values), as well as every numerical value between these two endpoints. Unless otherwise specified, when a numerical interval refers only to integers within that numerical interval, it includes the two endpoint integers of the numerical range, as well as every integer between the two endpoints, which is equivalent to directly listing every integer. When multiple numerical ranges are provided to describe features or characteristics, these numerical ranges can be merged. In other words, unless otherwise specified, the numerical ranges disclosed in this application should be understood to include any and all subranges included therein. The "numerical value" in the numerical interval can be any quantitative value, such as a number, percentage, ratio, etc. The term "numerical interval" can be broadly included to include percentage intervals, ratio intervals, proportion intervals, etc.
[0051] This application provides a photovoltaic module power measurement device to solve at least one of the following technical problems in the conventional technology of measuring the power of photovoltaic modules using a photovoltaic LID test box and a solar simulator: (1) The photovoltaic LID test box and the solar simulator are two devices with completely different purposes. Therefore, the photovoltaic module must first enter the LID box, be processed, and then be moved to the solar simulator, which consumes manpower and time; (2) The minimum irradiation time of each LID test box is 15 minutes. At this time, the temperature of the photovoltaic module has risen to 50°C. However, when the photovoltaic module is measured for power in the solar simulator, the photovoltaic module temperature needs to be 25°C, which requires about 2 hours to cool the photovoltaic module, which consumes time; (3) Light recovery only requires a low light source intensity and a short irradiation time, while the light source intensity of the LID test box is very high. Therefore, using the LID test box for light recovery results in a waste of equipment. The photovoltaic module power measurement device will be described below with reference to the accompanying drawings.
[0052] The photovoltaic module power measurement device 10 provided in one embodiment of this application is exemplary; please refer to [link to example]. Figure 1 As shown, Figure 1 This is a schematic diagram of the structure of a photovoltaic module power measuring device 10 provided in one embodiment of this application. The photovoltaic module power measuring device 10 of this application can be used for power measurement of a photovoltaic module 20.
[0053] To more clearly illustrate the structure of the photovoltaic module power measuring device 10, the following description of the photovoltaic module power measuring device 10 will be provided in conjunction with the accompanying drawings.
[0054] For example, please refer to Figure 1 As shown, a photovoltaic module power measurement device 10 includes a light recovery device 100, a simulator flash device 200, and a feeding device 300.
[0055] See Figure 2 , Figure 3 As shown, Figure 2 This is a schematic diagram of the light recovery device 100 of the photovoltaic module power measurement device 10 according to an embodiment of this application. Figure 3 This is a schematic diagram from another angle of the light recovery device 100 of the photovoltaic module power measurement device 10 according to an embodiment of this application. The light recovery device 100 includes a light recovery chamber 110 and a first light source 120. The light recovery chamber 110 has a light recovery inlet 111 and a light recovery outlet 112. The first light source 120 is disposed inside the light recovery chamber 110.
[0056] See Figure 4 As shown, Figure 4 This is a schematic diagram of a simulator flash device of a photovoltaic module power measurement device 10 according to an embodiment of this application. The simulator flash device 200 includes a simulator flash chamber 210 and a second light source 220. The simulator flash chamber 210 has a simulator flash inlet 211 and a simulator flash outlet 212. The simulator flash inlet 211 is located near the light recovery outlet 112. The second light source 220 is disposed inside the simulator flash chamber 210.
[0057] The transmission path of the feeding device 300 passes through the optical recovery chamber 110 and the simulator flash chamber 210, and extends along the optical recovery inlet 111, the optical recovery outlet 112, the simulator flash inlet 211 and the simulator flash outlet 212.
[0058] The photovoltaic module power measurement device 10 of this application can be used to measure the power of photovoltaic modules 20. During measurement, it can save time, has low equipment requirements, and reduce testing costs. Specifically, this application sets up a light recovery chamber 110 and a simulator flash chamber 210. The photovoltaic module 20 can be automatically transported into and out of each chamber by a feeding device 300. The light recovery chamber 110 has a temperature control function, and a reference device with the same temperature characteristics as the photovoltaic module 20 under test can be set in the light recovery chamber 110 for temperature adjustment, instead of controlling the ambient temperature, eliminating the need to spend time cooling the photovoltaic module 20 as in traditional technologies. The light recovery chamber 110 and the simulator flash chamber 210 are directly connected and communicate with each other, and the material is directly transferred through the feeding device 300, which improves the conveying efficiency, eliminates the need for manual material transfer, and saves labor costs.
[0059] In some embodiments, the light recovery device 100 further includes a temperature regulating component. The temperature regulating component is connected to the light recovery chamber 110 to regulate the temperature of the light recovery chamber 110.
[0060] In some embodiments, the temperature control components include an air conditioner. The light recovery chamber 110 is also provided with an air conditioner inlet 113 and an air conditioner outlet 114.
[0061] In some implementations, see Figure 3 As shown, the first light source 120 is disposed at the top of the light recovery chamber 110.
[0062] In some embodiments, the first light source 120 includes one or more of LED lamps, xenon lamps, and metal halide lamps.
[0063] In some embodiments, the wavelength range of light emitted by the first light source 120 includes at least 280 nm to 400 nm. The first light source 120 with a wavelength range between 280 nm and 400 nm mainly covers most of the ultraviolet (UV) region, including UVB (280 nm to 315 nm) and UVA (315 nm to 400 nm), and can be used for light recovery of the photovoltaic module 20.
[0064] In some embodiments, the light recovery device 100 further includes a first heat-insulating curtain 130. The first heat-insulating curtain 130 is connected to the light recovery inlet 111 and the light recovery outlet 112, respectively.
[0065] In some embodiments, the second light source 220 is disposed on top of the simulator flash chamber 210.
[0066] In some embodiments, the second light source 220 includes one or more of LED lamps, xenon lamps, and metal halide lamps.
[0067] In some embodiments, the wavelength range of light emitted by the second light source 220 includes at least 280 nm to 1200 nm. A second light source 220 with a wavelength range of 280 nm to 1200 nm can cover most important parts of the solar spectrum, including: Ultraviolet (UV): 280 nm to 400 nm. This part covers UVB (280 nm to 315 nm) and UVA (315 nm to 400 nm), which have a significant impact on many biochemical processes and material aging. Visible light: approximately 400 nm to 700 nm. This is the range of light that is perceptible to human vision and is also the main wavelength band for plant photosynthesis. Near-infrared (NIR): 700 nm to 1200 nm. Although this part of the spectrum is invisible to the human eye, it plays an important role in regulating plant growth, cell activity, and also plays a role in solar energy absorption. Therefore, the wavelength range of the light emitted by the second light source 220 includes at least 280nm~1200nm, which can simulate the main characteristics of sunlight quite well and is suitable for research on the illumination of photovoltaic modules 20.
[0068] In some embodiments, the simulator flash device 200 further includes a light-absorbing layer 230. The inner sidewalls of the simulator flash chamber 210 are respectively connected to the light-absorbing layer 230.
[0069] In some embodiments, the simulator flashing device 200 further includes a second insulated curtain 240. The second insulated curtain 240 is connected to both the simulator flashing inlet 211 and the simulator flashing outlet 212.
[0070] In some embodiments, the feeding device 300 includes a support frame 310, rollers 320, and a feeding drive component. The support frame 310 extends along the optical recovery inlet 111, optical recovery outlet 112, simulator flash inlet 211, and simulator flash outlet 212. Multiple rollers 320 are sequentially distributed on the support frame 310 along the transport path. The feeding drive component is connected to the rollers 320 and drives the rollers 320 to rotate.
[0071] In some embodiments, the photovoltaic module power measurement device 10 further includes an insulating housing 400. The outer walls of the light recovery chamber 110 and / or the simulator flash chamber 210 are respectively connected to the insulating housing 400.
[0072] In some embodiments, the photovoltaic module power measurement device 10 further includes a buffer device 500. The buffer device 500 includes a buffer chamber. The buffer chamber has a buffer inlet and a buffer outlet. The buffer chamber is disposed between the light recovery chamber 110 and the simulator flash chamber 210. The transmission path of the feeding device 300 passes through the light recovery chamber 110, the buffer chamber, and the simulator flash chamber 210, and extends along the light recovery inlet 111, the light recovery outlet 112, the buffer inlet, the buffer outlet, the simulator flash inlet 211, and the simulator flash outlet 212.
[0073] The light recovery chamber 110 can perform light recovery on several photovoltaic modules 20 at a time, consuming time t1. The simulator flash chamber 210 can only measure one photovoltaic module 20 at a time, consuming time t2. t1 is typically 5-10 minutes, and t2 is typically 1 minute. Therefore, a buffer chamber can be added between the light recovery chamber 110 and the simulator flash chamber 210. Further, optionally, multiple simulator flash chambers 210 can be set downstream of the buffer chamber.
[0074] In some implementations, see Figure 5 As shown, Figure 5 This is a schematic diagram of a photovoltaic module power measurement device 10 according to another embodiment of this application. A plurality of simulator flash chambers 210 are arranged downstream of the buffer chamber. When a plurality of simulator flash chambers 210 are arranged downstream of the buffer chamber, they are arranged side-by-side. In this case, the multiple simulator flash chambers 210 are not on the straight path formed by the light recovery inlet 111, light recovery outlet 112, buffer inlet, and buffer outlet. For the other simulator flash chambers 210 not on the straight path, auxiliary rollers 320 can be provided, and steering rollers can be added to allow the photovoltaic module 20 exiting the buffer outlet to enter the required simulator flash chamber 210. The above-mentioned conveying steering technology refers to existing conveying steering technology and will not be described in detail here.
[0075] In some embodiments, the buffer device 500 further includes a third insulated curtain. The buffer inlet and buffer outlet are each connected to a third insulated curtain.
[0076] In some embodiments, at least one of the first insulated door curtain 130, the second insulated door curtain 240, and the third insulated door curtain is a strip-shaped door curtain made of insulating cotton, polymer materials, etc.
[0077] In some embodiments, the photovoltaic module power measuring device 10 further includes a control device, which is electrically connected to the first light source 120, the second light source 220, the temperature regulating component, and the feeding drive component. The control device may be a PLC programmable logic controller.
[0078] When using the aforementioned photovoltaic module power measurement device 10, the following steps are included:
[0079] Several photovoltaic modules 20 are placed on the rollers 320 of the feeding device 300, with the light-receiving surfaces of the photovoltaic modules 20 facing upwards. The feeding drive component is controlled to drive the rollers 320 to roll, so as to transport the photovoltaic modules 20 into the light recovery chamber 110, and a reference device is set in the light recovery chamber 110. The first light source 120 is controlled to start, so as to irradiate the photovoltaic modules 20 with a set power to perform light recovery.
[0080] The temperature control component regulates the temperature within the optical recovery chamber 110 to maintain the temperature of the reference device near the set value T.
[0081] After the photovoltaic module 20 undergoes light recovery, it is conveyed by the feeding device 300 to the buffer chamber for buffering before entering the simulator flash chamber 210, or it can directly enter the simulator flash chamber 210.
[0082] The second light source 220 is controlled to operate, and the power is set to irradiate the photovoltaic module 20, simulating sunlight, and the power parameters of the photovoltaic module 20 are measured and recorded.
[0083] After the test is completed, the material is conveyed out of the simulator flash chamber 210 by the feeding device 300. This process is repeated for the other photovoltaic modules 20.
[0084] In summary, the photovoltaic module power measurement device 10 described above has the following beneficial effects:
[0085] (1) The power and wavelength range of the first light source 120 in the light recovery chamber 110 can be selected according to the requirements of different photovoltaic modules 20, which can reduce the cost of the first light source 120. For example, the wavelength range of the first light source 120 in the light recovery chamber 110 includes at least 280nm~400nm, and the first light source 120 in this wavelength range has good economic benefits.
[0086] (2) The duration of irradiation of photovoltaic module 20 in light recovery chamber 110 can be selected according to the requirements of different photovoltaic modules 20, which can improve the test efficiency.
[0087] (3) The light recovery chamber 110 has a temperature adjustment function, which can keep the photovoltaic module 20 at the same temperature as the power measurement during the light recovery process, eliminating the need to wait for cooling down and significantly improving the testing efficiency.
[0088] (4) After light recovery, the photovoltaic module 20 can be automatically moved to the simulator flash chamber 210 for power measurement under the conveying of the feeding device 300, which shortens the transfer time of the photovoltaic module 20 and can significantly improve the testing efficiency and accuracy.
[0089] (5) By setting up a buffer chamber, several photovoltaic modules 20 that have completed light recovery can queue up in the buffer chamber and enter the simulator flash chamber 210 in sequence to measure power, thereby improving the testing efficiency; furthermore, by setting up several simulator flash chambers 210 downstream of the buffer chamber, multiple simulator flash chambers 210 are used for synchronous testing, thereby improving the testing efficiency.
[0090] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0091] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0092] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.
Claims
1. A photovoltaic module power measurement device (10), characterized in that, include: The light recovery device (100) includes a light recovery chamber (110) and a first light source (120). The light recovery chamber (110) has a light recovery inlet (111) and a light recovery outlet (112). The first light source (120) is disposed inside the light recovery chamber (110). The simulator flash device (200) includes a simulator flash chamber (210) and a second light source (220). The simulator flash chamber (210) has a simulator flash inlet (211) and a simulator flash outlet (212). The simulator flash inlet (211) is close to the light recovery outlet (112). The simulator flash chamber (210) is provided with the second light source (220). And a feeding device (300), the transmission path of which passes through the light recovery chamber (110), the simulator flash chamber (210), and extends along the light recovery inlet (111), the light recovery outlet (112), the simulator flash inlet (211) and the simulator flash outlet (212).
2. The photovoltaic module power measuring device (10) according to claim 1, characterized in that, The optical restoration device (100) further includes a temperature regulating component connected to the optical restoration chamber (110) to regulate the temperature of the optical restoration chamber (110).
3. The photovoltaic module power measuring device (10) according to claim 2, characterized in that, The temperature regulating component includes an air conditioner, and the light recovery chamber (110) is also provided with an air conditioner inlet (113) and an air conditioner outlet (114).
4. The photovoltaic module power measuring device (10) according to claim 1, characterized in that, The first light source (120) is disposed at the top of the light recovery chamber (110); And / or, the first light source (120) includes one or more of LED lamps, xenon lamps and metal halide lamps; And / or, the wavelength range of the light emitted by the first light source (120) includes at least 280nm to 400nm.
5. The photovoltaic module power measuring device (10) according to claim 1, characterized in that, The light recovery device (100) also includes a first heat-insulating curtain (130), which is connected to the light recovery inlet (111) and the light recovery outlet (112).
6. The photovoltaic module power measuring device (10) according to any one of claims 1 to 5, characterized in that, The second light source (220) is disposed at the top of the simulator flash chamber (210); And / or, the second light source (220) includes one or more of LED lamps, xenon lamps and metal halide lamps; And / or, the wavelength range of the light emitted by the second light source (220) includes at least 280nm to 1200nm.
7. The photovoltaic module power measuring device (10) according to any one of claims 1 to 5, characterized in that, The simulator flash device (200) further includes a light-absorbing layer (230), and the inner wall of the simulator flash chamber (210) is respectively connected to the light-absorbing layer (230). And / or, the simulator flashing device (200) further includes a second heat-insulating curtain (240), which is connected to the simulator flashing inlet (211) and the simulator flashing outlet (212) respectively.
8. The photovoltaic module power measuring device (10) according to any one of claims 1 to 5, characterized in that, The feeding device (300) includes a support frame (310), rollers (320) and a feeding drive component. The support frame (310) extends along the light recovery inlet (111), the light recovery outlet (112), the simulator flash inlet (211) and the simulator flash outlet (212). Multiple rollers (320) are sequentially distributed on the support frame (310) along the transmission path direction. The feeding drive component is connected to the rollers (320) and drives the rollers (320) to rotate.
9. The photovoltaic module power measuring device (10) according to any one of claims 1 to 5, characterized in that, The photovoltaic module power measurement device (10) also includes a heat insulation shell (400), and the outer walls of the light recovery chamber (110) and / or the simulator flash chamber (210) are respectively connected to the heat insulation shell (400).
10. The photovoltaic module power measuring device (10) according to any one of claims 1 to 5, characterized in that, The photovoltaic module power measurement device (10) further includes a buffer device (500), which includes a buffer chamber with a buffer inlet and a buffer outlet. The buffer chamber is located between the light recovery chamber (110) and the simulator flash chamber (210). The transmission path of the feeding device (300) passes through the light recovery chamber (110), the buffer chamber, and the simulator flash chamber (210), and extends along the light recovery inlet (111), the light recovery outlet (112), the buffer inlet, the buffer outlet, the simulator flash inlet (211), and the simulator flash outlet (212). Optionally, a plurality of simulator flash chambers (210) are provided downstream of the buffer chamber. Optionally, the buffer device (500) further includes a third heat-insulating curtain, which is connected to the buffer inlet and buffer outlet respectively.