CN210405198U - Photovoltaic module and photovoltaic array - Google Patents
Photovoltaic module and photovoltaic array Download PDFInfo
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- CN210405198U CN210405198U CN201921376053.8U CN201921376053U CN210405198U CN 210405198 U CN210405198 U CN 210405198U CN 201921376053 U CN201921376053 U CN 201921376053U CN 210405198 U CN210405198 U CN 210405198U
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- 230000008021 deposition Effects 0.000 abstract description 17
- 239000000428 dust Substances 0.000 abstract description 12
- 238000010248 power generation Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 241000112598 Pseudoblennius percoides Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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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 application discloses a photovoltaic module which comprises a module outer frame, a plurality of sub-battery strings and a sub-string junction box; the sub-battery string comprises solar battery pieces which are longitudinally arranged; the substring junction box comprises a bypass diode and a solar cell optimizer; the solar cell optimizer comprises a plurality of sub-cell strings, wherein at least one of the sub-cell strings located at the edge corresponds to the solar cell optimizer, the sub-cell strings correspond to the solar cell optimizer one to one, and the bypass diodes correspond to the rest of the sub-cell strings one to one. The failure of a component due to shading or dust deposition is mostly an edge component. When the sub-battery strings positioned at the edge fail, the remaining normally-working sub-battery strings still keep working at the maximum power point, so that the problem of power generation loss caused by component failure due to dust deposition or shadow is avoided, and the power generation amount of the photovoltaic component is improved. The application also provides a photovoltaic array with the beneficial effects.
Description
Technical Field
The application relates to the field of distributed photovoltaic grid-connected power generation, in particular to a photovoltaic module and a photovoltaic array.
Background
With the global temperature rise and the increasingly worsened environment, people gradually recognize the great influence of fossil energy such as petroleum, coal electricity and the like on the environment, so that renewable energy becomes a necessary choice for sustainable development. With the development of the crystalline silicon technology, the photovoltaic flat-price internet access becomes a necessary trend. The double-sided component is favored as a high-power component in the places with complementary fishing light and good light reflection performance in desert areas.
In recent years, a photovoltaic grid-connected power generation technology is rapidly developed, wherein a basic power generation unit photovoltaic module is generally formed by connecting a plurality of batteries in series, and when a certain battery piece in a string is damaged or shaded, the current is reduced, so that the current of the whole string is reduced, the current of the whole module is reduced, the array power generation amount is unstable, and finally the power generation amount is greatly reduced. In actual operation, the light cannot be received by the individual cell pieces due to the shadow on the surface of the component or long-time uncleaning, so that the electric energy loss caused by the abnormal power generation cannot be particularly small. Therefore, finding a method to solve the power generation loss problem caused by the assembly dust deposition or the row shadow is an urgent problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a photovoltaic module and photovoltaic array to solve the problem of the generated energy loss that the subassembly deposition or shade caused among the prior art.
In order to solve the technical problem, the application provides a photovoltaic module, which comprises a module outer frame, a plurality of sub-battery strings and a sub-string junction box;
the sub-battery string comprises solar battery pieces which are longitudinally arranged;
the substring junction box comprises a bypass diode and a solar cell optimizer;
the solar cell optimizer comprises a plurality of sub-cell strings, wherein at least one of the sub-cell strings located at the edge corresponds to the solar cell optimizer, the sub-cell strings correspond to the solar cell optimizer one to one, and the bypass diodes correspond to the rest of the sub-cell strings one to one.
Optionally, in the photovoltaic module, the photovoltaic module is a horizontally mounted photovoltaic module; and the sub-cell strings corresponding to the solar cell optimizer are arranged at the lowest side of the photovoltaic module.
Optionally, in the photovoltaic module, the photovoltaic module includes a plurality of sub string junction boxes, the sub string junction boxes are disposed inside the module outer frame, and the sub string junction boxes correspond to the sub battery strings one to one.
Optionally, in the photovoltaic module, the photovoltaic module comprises a single sub-string junction box; the substring junction box is arranged on the outer side of the assembly outer frame.
Optionally, in the photovoltaic module, the sub-string junction box is arranged outside the module outer frame.
Optionally, in the photovoltaic module, the number of the sub-cell strings ranges from 3 to 10, inclusive.
The application also provides a photovoltaic array, which comprises any one of the photovoltaic modules.
Optionally, in the photovoltaic array, the photovoltaic modules in the photovoltaic array are bevel-mounted photovoltaic modules.
The photovoltaic module comprises a module outer frame, a plurality of sub-battery strings and a sub-string junction box; the sub-battery string comprises solar battery pieces which are longitudinally arranged; the substring junction box comprises a bypass diode and a solar cell optimizer; the solar cell optimizer comprises a plurality of sub-cell strings, wherein at least one of the sub-cell strings located at the edge corresponds to the solar cell optimizer, the sub-cell strings correspond to the solar cell optimizer one to one, and the bypass diodes correspond to the rest of the sub-cell strings one to one. The output reduction caused by the failure of the solar cell of the photovoltaic module is mostly caused by shadow masking or module dust deposition, whether shadow or dust deposition, which starts from the edge of the photovoltaic module firstly, in other words, the module failure caused by the shadow or dust deposition, and the failed module is an edge module in most cases. This application is through utilizing solar cell optimizer is right photovoltaic module optimizes, when being located the edge the sub cell cluster is out of order, solar cell optimizer makes the sub cell cluster of surplus normal work still keep working at maximum power point through adjusting output current to avoid the problem of the generated energy loss that the subassembly that causes because deposition or shadow became invalid, improve photovoltaic module's generated energy. The application also provides a photovoltaic array with the beneficial effects.
Drawings
For a clearer explanation of the embodiments or technical solutions of the prior art of the present application, the drawings needed for the description of the embodiments or prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic electrical circuit diagram of one embodiment of a photovoltaic module provided herein;
FIG. 2 is a schematic structural view of another embodiment of a photovoltaic module provided herein;
FIG. 3 is a schematic view of one embodiment of a photovoltaic array provided herein;
fig. 4 is a circuit schematic diagram of another embodiment of a photovoltaic module provided herein.
Detailed Description
In order that those skilled in the art will better understand the disclosure, the following detailed description will be given with reference to the accompanying drawings. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The core of the present application is to provide a photovoltaic module, a circuit schematic diagram of one embodiment of which is shown in fig. 1, which is called as a first embodiment, and the photovoltaic module includes a module outer frame 110, a plurality of sub-battery strings 120 and a sub-string junction box 130;
the sub-cell string 120 includes solar cells arranged in a vertical direction;
the sub-string junction box 130 comprises a bypass diode 131 and a solar cell optimizer 132;
at least one of the sub-cell strings 120 located at the edge corresponds to the solar cell optimizer 132, the sub-cell strings 120 correspond to the solar cell optimizer 132 one to one, and the bypass diodes 131 correspond to the remaining sub-cell strings 120 one to one.
Specifically, the photovoltaic module includes a plurality of sub string junction boxes 130, the sub string junction boxes 130 are disposed inside the module outer frame 110, and the sub string junction boxes 130 correspond to the sub battery strings 120 one by one; the substring junction box is arranged on the inner side of the assembly outer frame 110, so that the circuit arrangement of the photovoltaic assembly can be simplified, the assembly difficulty of the photovoltaic assembly is reduced, and the production efficiency is improved.
Alternatively, the photovoltaic assembly includes a single sub-string junction box 130; the sub string junction box is disposed on the assembly outer frame outer side 130. Once the circuit of the photovoltaic module breaks down, the whole module does not need to be disassembled, and the failure type can be determined only from the sub-string junction box 130 located on the outer side, so that daily maintenance is facilitated.
In addition, the number of the sub-battery strings 120 ranges from 3 to 10, inclusive.
The photovoltaic module provided by the application comprises a module outer frame 110, a sub-battery string 120 and a sub-string junction box 130; the sub-cell string 120 includes solar cells arranged in a vertical direction; the sub-string junction box 130 comprises a bypass diode 131 and a solar cell optimizer 132; the sub-cell strings 120 located at the edge correspond to the solar cell optimizer 132, and the bypass diodes 131 correspond to the remaining sub-cell strings 120 one to one. The output reduction caused by the failure of the solar cell of the photovoltaic module is mostly caused by shadow masking or module dust deposition, whether shadow or dust deposition, which starts from the edge of the photovoltaic module firstly, in other words, the module failure caused by the shadow or dust deposition, and the failed module is an edge module in most cases. This application is through utilizing solar cell optimizer 132 is right photovoltaic module optimizes, when being located the edge sub cell cluster 120 is out of order, solar cell optimizer 132 makes remaining sub cell cluster 120 of normally working still keep working at maximum power point through adjusting output current to avoid the problem of the generated energy loss that the subassembly that causes because deposition or shadow became invalid, improve photovoltaic module's generated energy.
Furthermore, the photovoltaic module provided by the present application may be a module in which the sub-cell strings 120 at the two side edges are both connected to the solar cell optimizer 132, or a module in which the sub-cell strings 120 at the single side edge are connected to the solar cell optimizer 132, which kind of situation is specifically selected and determined according to the surrounding environment and the module distance when the photovoltaic module is actually used, and the module in which the solar cell optimizer is assembled at the two side edges can better prevent the situation that the two side cells are both blocked and lost of effectiveness, and the principle and the beneficial effects are as described above, and the circuit schematic diagram is shown in fig. 4, which is not repeated herein.
On the basis of the first specific embodiment, the installation manner of the photovoltaic module is further limited to obtain a second specific embodiment, a schematic structural diagram of which is shown in fig. 2, wherein the photovoltaic module includes a module outer frame 110, a plurality of sub-battery strings 120 and a sub-string junction box 130;
the sub-cell string 120 includes solar cells arranged in a vertical direction;
the sub-string junction box 130 comprises a bypass diode 131 and a solar cell optimizer 132;
at least one of the sub-cell strings 120 located at the edge corresponds to the solar cell optimizer 132, the sub-cell strings 120 correspond to the solar cell optimizer 132 one to one, and the bypass diodes 131 correspond to the remaining sub-cell strings 120 one to one;
the photovoltaic module is transversely installed; the sub-cell string 120 corresponding to the solar cell optimizer 132 is disposed at the lowest side of the photovoltaic module.
The difference between the present embodiment and the above embodiments is that the present embodiment defines that the photovoltaic module is a transversely installed photovoltaic module, and the rest of the structure is the same as that of the above embodiments, and is not described herein again.
This embodiment adopts horizontal installation, the downside of photovoltaic module is same sub cell cluster 120 promptly, and the deposition always is amassed at photovoltaic module's downside, and the downside of photovoltaic module is the longest again in the time of shadow in the circulation that the sun rises the whereabouts, consequently, will solar cell optimizer 132 corresponds to be located horizontal installation sub cell cluster 120 of photovoltaic module downside installs, only needs one solar cell cluster optimizer can greatly reduced the possibility that the subassembly that is shielded influences whole subassembly generated energy, improves the generating efficiency of subassembly.
The present application further provides a photovoltaic module, an assembled schematic diagram of a specific embodiment of which is shown in fig. 3, the photovoltaic module includes any one of the above photovoltaic arrays, and the photovoltaic module includes a module outer frame 110, a plurality of sub-battery strings 120 and a sub-string junction box 130;
the sub-cell string 120 includes solar cells arranged in a vertical direction;
the sub-string junction box 130 comprises a bypass diode 131 and a solar cell optimizer 132;
at least one of the sub-cell strings 120 located at the edge corresponds to the solar cell optimizer 132, the sub-cell strings 120 correspond to the solar cell optimizer 132 one to one, and the bypass diodes 131 correspond to the remaining sub-cell strings 120 one to one;
the photovoltaic module is transversely installed; the sub-cell string 120 corresponding to the solar cell optimizer 132 is disposed at the lowest side of the photovoltaic module.
The photovoltaic module provided by the application comprises a module outer frame 110, a sub-battery string 120 and a sub-string junction box 130; the sub-cell string 120 includes solar cells arranged in a vertical direction; the sub-string junction box 130 comprises a bypass diode 131 and a solar cell optimizer 132; the sub-cell strings 120 located at the edge correspond to the solar cell optimizer 132, and the bypass diodes 131 correspond to the remaining sub-cell strings 120 one to one. The output reduction caused by the failure of the solar cell of the photovoltaic module is mostly caused by shadow masking or module dust deposition, whether shadow or dust deposition, which starts from the edge of the photovoltaic module firstly, in other words, the module failure caused by the shadow or dust deposition, and the failed module is an edge module in most cases. This application is through utilizing solar cell optimizer 132 is right photovoltaic module optimizes, when being located the edge sub cell cluster 120 is out of order, solar cell optimizer 132 makes remaining sub cell cluster 120 of normally working still keep working at maximum power point through adjusting output current to avoid the problem of the generated energy loss that the subassembly that causes because deposition or shadow became invalid, improve photovoltaic module's generated energy.
Further, the photovoltaic modules in the photovoltaic array are bevel mounted photovoltaic modules. By adopting oblique angle installation, the projection area of the photovoltaic module on the earth surface can be reduced while the advantages of the photovoltaic module transversely installed are kept, so that more photovoltaic modules for actual power generation can be installed on the land with the same area in the specific embodiment mode, the light absorption amount of the photovoltaic module in the unit land area is improved in a phase-changing manner, and the power generation efficiency is further improved.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is to be noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The photovoltaic module and the photovoltaic array provided by the application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (8)
1. A photovoltaic module is characterized by comprising a module outer frame, a plurality of sub-battery strings and a sub-string junction box;
the sub-battery string comprises solar battery pieces which are longitudinally arranged;
the substring junction box comprises a bypass diode and a solar cell optimizer;
the solar cell optimizer comprises a plurality of sub-cell strings, wherein at least one of the sub-cell strings located at the edge corresponds to the solar cell optimizer, the sub-cell strings correspond to the solar cell optimizer one to one, and the bypass diodes correspond to the rest of the sub-cell strings one to one.
2. The photovoltaic module of claim 1, wherein the photovoltaic module is a laterally mounted photovoltaic module;
and the sub-cell strings corresponding to the solar cell optimizer are arranged at the lowest side of the photovoltaic module.
3. The photovoltaic module according to claim 1, wherein the photovoltaic module comprises a plurality of sub string junction boxes, the sub string junction boxes are arranged on the inner side of the module outer frame, and the sub string junction boxes correspond to the sub battery strings one by one.
4. The photovoltaic module of claim 1, wherein the photovoltaic module comprises a single sub-string junction box;
the substring junction box is arranged on the outer side of the assembly outer frame.
5. The photovoltaic module of claim 4, wherein the sub-string junction box is disposed outside the module housing.
6. A photovoltaic module according to any one of claims 1 to 5, wherein the number of sub-strings ranges from 3 to 10, inclusive.
7. A photovoltaic array comprising a photovoltaic module according to any one of claims 1 to 6.
8. The photovoltaic array of claim 7, wherein the photovoltaic modules in the photovoltaic array are bevel mounted photovoltaic modules.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921376053.8U CN210405198U (en) | 2019-08-22 | 2019-08-22 | Photovoltaic module and photovoltaic array |
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| CN201921376053.8U CN210405198U (en) | 2019-08-22 | 2019-08-22 | Photovoltaic module and photovoltaic array |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362640A (en) * | 2021-10-27 | 2022-04-15 | 深圳市中旭新能源有限公司 | Photovoltaic system and method for reducing influence of panel foreign matter accumulation |
| CN114413735A (en) * | 2022-01-21 | 2022-04-29 | 华北电力大学 | Be applied to coverability measuring device in bush field |
| CN116111942A (en) * | 2023-04-12 | 2023-05-12 | 深圳市中旭新能源有限公司 | Asymmetric integrated double-type combined area optimized photovoltaic module and photovoltaic power generation system |
-
2019
- 2019-08-22 CN CN201921376053.8U patent/CN210405198U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362640A (en) * | 2021-10-27 | 2022-04-15 | 深圳市中旭新能源有限公司 | Photovoltaic system and method for reducing influence of panel foreign matter accumulation |
| CN114362640B (en) * | 2021-10-27 | 2024-02-27 | 深圳市中旭新能源有限公司 | Photovoltaic system and method for reducing influence of foreign matter accumulation of panel |
| CN114413735A (en) * | 2022-01-21 | 2022-04-29 | 华北电力大学 | Be applied to coverability measuring device in bush field |
| CN114413735B (en) * | 2022-01-21 | 2022-10-18 | 华北电力大学 | Be applied to coverability measuring device in bush field |
| CN116111942A (en) * | 2023-04-12 | 2023-05-12 | 深圳市中旭新能源有限公司 | Asymmetric integrated double-type combined area optimized photovoltaic module and photovoltaic power generation system |
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Effective date of registration: 20240110 Address after: Building 2, No. 522 Asia Pacific Road, Nanhu District, Jiaxing City, Zhejiang Province, 314000 Patentee after: Yuneng Technology Co.,Ltd. Address before: 314400 Longxing Road, Haining City, Jiaxing City, Zhejiang Province Patentee before: INTEPOWERCHIP Inc. |
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