CN106452352A - Double-sided photovoltaic module - Google Patents
Double-sided photovoltaic module Download PDFInfo
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- CN106452352A CN106452352A CN201610984318.7A CN201610984318A CN106452352A CN 106452352 A CN106452352 A CN 106452352A CN 201610984318 A CN201610984318 A CN 201610984318A CN 106452352 A CN106452352 A CN 106452352A
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- photovoltaic module
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- 238000005457 optimization Methods 0.000 claims abstract description 82
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 230000007547 defect Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 37
- 230000005611 electricity Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
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- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000037361 pathway Effects 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/36—Electrical components characterised by special electrical interconnection means between two or more PV modules, e.g. electrical module-to-module connection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/30—Electrical components
- H02S40/34—Electrical components comprising specially adapted electrical connection means to be structurally associated with the PV module, e.g. junction boxes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The invention provides a double-sided photovoltaic module which comprises a body, multiple strings of double-sided battery pieces and multiple optimization modules, wherein the multiple strings of double-sided battery pieces and the multiple optimization modules are arranged on the body; one or more strings of battery pieces are connected in parallel with an optimization module to form a battery unit; multiple battery units are connected in series; and each optimization module performs maximum-power point tracking of one or more strings of battery pieces in parallel connection therewith before current optimization. In the double-sided photovoltaic module provided by the invention, by adopting multiple optimization modules each of which performs maximum-power point tracking of the battery strings in parallel connection therewith before current optimization, the battery back power-current mismatch and back light intensity mismatch can be eliminated, mutual influence of the battery strings connected in series in the same circuit is avoided, and the power loss is reduced.
Description
Technical field
The present invention relates to field of photovoltaic power generation, more particularly, to a kind of two-sided photovoltaic module for photovoltaic generation.
Background technology
The increasingly raising requiring for living environment with the increasingly serious of environmental pollution and people, does not produce the new of pollution
The energy is more and more paid close attention to by people, government and the whole society.Solar electrical energy generation, as one kind inexhaustible use in theory
The inexhaustible energy, have pollution-free nuisanceless, do not limited by resource distribution region, can generate electricity nearby at electricity consumption, use
The advantages of person is acceptant from emotion, the time of acquisition energy cost is short, is just more and more accepted by countries in the world.Cause
This, solar power plant widely is built.Meanwhile, based on above-mentioned advantage, in many such as enclosure walls, awning, building
Thing curtain wall equipotential installs photovoltaic module and is also increasingly welcome by people.However, being different from large-sized solar power station, at these
Relatively narrow and small and fragmentary position setting photovoltaic module, is limited by mounting condition, its light conditions is sufficiently complex, if only made
Use one side photovoltaic module, then generating dutation certainly will be led to short, the utilization ratio of solar energy is low.So, more in these regions
Using two-sided photovoltaic module.
Current two-sided photovoltaic module has the following problems：
1st, double-side assembly only carries out stepping by front power, electric current and defects detection when producing, its back side power, electric current
May and mismatch with defect situation.Therefore, there is power, current mismatch in actual use, lead to generated energy to lose.
2nd, general warranty front is unobstructed when mounted for double-side assembly, but the back side supports due to having to install, inevitably
Module backside light intensity can be caused uneven.
3rd, the back side of double-side assembly mainly absorbs reflected light and scattered light, because actual ground surface environment is typically more complicated,
Module backside battery terrain clearance is also not quite similar, thus light intensity changes greatly, different double-side assembly back side power swing
Larger.
Therefore existing double-side assembly is compared single sided assemblies and be there is two kinds of extra mismatches, i.e. cell backside power, current mismatch
With back side light intensity mismatch；Both mismatches cause declining to a great extent of assembly generated energy.It is double that current use diode optimizes
, when in the face of such mismatch, effect of optimization is poor for face battery component, diode also can be caused to open cause whole string work(when serious
The loss of rate.And both mismatches almost cannot avoid in large-scale production and application, so being highly desirable to invent
Rational solution.
Content of the invention
The present invention provide a kind of match, two-sided photovoltaic module that power loss is little.
A kind of two-sided photovoltaic module that the present invention provides, including main body, many string double-side cell pieces and multiple optimization module, should
Many string double-side cell pieces and multiple optimization module are arranged in this main body, a string or this cell piece and optimization module of going here and there more
Parallel connection, forms battery unit, and this battery cells in series multiple connect；Each this optimization module in parallel this therewith a string or
Person's multi-string battery piece first carries out MPPT maximum power point tracking, then carries out electric current optimization.
According to one embodiment of present invention, the battery strings that every two strings are made up of this cell piece are with an optimization module simultaneously
Connection, forms battery unit.
According to one embodiment of present invention, the first glassy layer and the second glassy layer are also included；
This many string double-side cell piece is arranged on this master in the way of being arranged between this first glassy layer and second glassy layer
On body.
According to one embodiment of present invention, this optimization module is laminated between this first glassy layer and second glassy layer.
According to one embodiment of present invention, it is additionally provided with a line box, this line box is arranged on this first glassy layer and the second glass
Outside glass layer, the plurality of optimization module is arranged in this line box.
According to one embodiment of present invention, it is additionally provided with multiple line box, the plurality of line box is all disposed within this first glassy layer
Outside the second glassy layer, each of the plurality of optimization module is all disposed within an independent line box.
According to one embodiment of present invention, this many string double-side cell pieces between, between the plurality of optimization module, this many string
Between double-side cell piece and the plurality of optimization module, connected by copper facing tin band；This photovoltaic module is additionally provided with first electrode and
Two electrodes, this many string double-side cell piece and multiple optimization module are connected by copper facing tin band with this first electrode and second electrode.
According to one embodiment of present invention, the plurality of optimization module electrical connection, with electric current in this many string double-side cell piece
The current value that maximum double-side cell string produces is reference value, and the electric current of this each battery strings is optimized for this reference value.
According to one embodiment of present invention, this optimization module includes power optimization part, turns off part and communication component.
The present invention also provides a kind of photovoltaic generating system, including multiple above-mentioned photovoltaic modulies, the plurality of photovoltaic module tool
There are front power, electric current and the defects detection result of identical gear.
The two-sided photovoltaic module that the present invention provides, arranges multiple optimization modules due to taking, and each optimization module pair
First carry out MPPT maximum power point tracking in described battery strings in parallel therewith, then carry out electric current optimization, cell backside work(can be eliminated
Rate, current mismatch and back side light intensity mismatch, it is to avoid each battery strings being connected in same circuit influence each other, reduce power and damage
Lose.
Brief description
Fig. 1 is the structure chart of two-sided photovoltaic module according to an embodiment of the invention；
Fig. 2 is the decomposing schematic representation of two-sided photovoltaic module according to an embodiment of the invention；
Fig. 3 is the structure chart of two-sided photovoltaic module according to another embodiment of the invention；
Fig. 4 is the structure chart of two-sided photovoltaic module according to still another embodiment of the invention；
Specific embodiment
Now with detailed reference to Description of Drawings embodiments of the invention.Being preferable to carry out with detailed reference to the present invention now
Example, its example is shown in the drawings.In the case of any possible, will mark to represent phase using identical in all of the figs
With or similar part.Although additionally, the term used in the present invention is to select from public term, this
In description of the invention, some mentioned terms are probably that applicant carrys out selection by his or her judgement, and its detailed meanings is at this
Explanation in the relevant portion of description of literary composition.In addition it is desirable to not only by the actual terms being used, and it is also to by each
The meaning that term is contained is understanding the present invention.
The structure of an optional embodiment of the present invention to be described with reference first to Fig. 1.The present invention provides a kind of dual light
Volt assembly, including：Main body 1, many string double-side cell pieces 3 and multiple optimization module 2.Wherein, go here and there double-side cell piece 3 more, comprise
One to the 6th double-side cell string 31-36.Multiple optimization modules 2, including the first to the 3rd optimization module 21-23.The two-sided electricity of many strings
Pond piece 3, and multiple optimization module 2 is all disposed within this main body 1.Main body 1 can be a kind of various known two-sided photovoltaic module
Agent structure, such as frame-type, fence type etc..Formation first in parallel with optimization module 21 after double-side cell string 31 and 32 series connection
Battery unit 41, formation in parallel with optimization module 22 second battery unit 42, double-side cell after double-side cell string 33 and 34 series connection
Formation in parallel with optimization module 23 the 3rd battery unit 43 after string 35 and 36 series connection.Battery unit 41,42 and 43 is connected in series.Excellent
Change module 21 and first MPPT maximum power point tracking is carried out to the battery strings 31,32 being connected in series, then carry out electric current optimization.Likewise, it is excellent
Change module 22 and first MPPT maximum power point tracking is carried out to the battery strings 33,34 being connected in series, then carry out electric current optimization, optimization module 23
First MPPT maximum power point tracking is carried out to the battery strings 35,36 being connected in series, then carries out electric current optimization.
It should be noted that giving 6 battery strings and the scheme of 3 optimization modules in the present embodiment is not to this
The restriction of invention, the present invention can also have the battery strings of other numbers and the scheme of optimization module, in these schemes, Yi Chuanhuo
Go here and there this battery strings and an optimization module more person, form battery unit, battery cells in series connects.Optimization module is for therewith simultaneously
The battery strings of stating of connection first carry out MPPT maximum power point tracking, then carry out electric current optimization.
With reference to Fig. 2, according to a nonrestrictive example, the two-sided photovoltaic module of the present invention also includes the first glassy layer 11
With the second glassy layer 13.Many string double-side cell pieces 3 are to be arranged on the side between described first glassy layer 11 and the second glassy layer 13
Formula is arranged in described main body 1.Its concrete mode can be, go here and there double-side cell piece 3 and multiple optimization module 2 and connecting line one more
Play one circuit layer 12 of composition, then circuit layer 12 is arranged between the first glassy layer 11 and the second glassy layer 13.Can also
It is to go here and there the independent setting of double-side cell piece 3 between the first glassy layer 11 and the second glassy layer 13 more.Additionally, the first glassy layer
11 and second can also have other layers between glassy layer 13.For example, it is possible to have a polymeric layer, to fill the first glassy layer
11 and second spaces between glassy layer 13.First glassy layer 11 and the second glassy layer 13 can be fixed by various modes, example
As, the first glassy layer 11 and the second glassy layer 13 by together with hot binding, or can be combined by binding agent.Or the
One glassy layer 11 and the second glassy layer 13 can fix both relative positions by way of fixing with main body 1 respectively.
Multiple optimization modules 2 can have multiple set-up modes, for example, with reference to Fig. 1, in a nonrestrictive example
In, multiple optimization modules 2 are arranged between the first glassy layer 11 and the second glassy layer 13 in a laminated manner.Or, with reference to figure
3, in other examples, the two-sided photovoltaic module that the present invention carries is additionally provided with a line box 5.This line box 5 is arranged on described
Outside one glassy layer and the second glassy layer, multiple optimization modules 2 are all disposed within described line box.This line box 5 can be arranged at double
The dorsal edge position of face photovoltaic module, to reduce the impact to the intensity of illumination that this two-sided photovoltaic module is accepted as far as possible.?
Can be arranged in such as main body 1 structure fixing with the pedestal of this two-sided photovoltaic module.Specifically, when this is arranged as curtain wall
When building surface, line box 5 can be arranged in the structure of the fixation that main body 1 is connected with this building.
Give the set-up mode of another kind of multiple optimization module 2 with reference to Fig. 4, in this nonrestrictive example, and
There is no a unified line box 5 accommodating all multiple optimization modules 2, and be provided with multiple line box 51-53, these multiple line box
It is all disposed within outside described first glassy layer and the second glassy layer, each line box only accommodates an optimization module.
With reference to Fig. 1, according to a nonrestrictive example, go here and there between double-side cell piece 3 more, go here and there double-side cell piece 3 He more
Between multiple optimization modules 2, between multiple optimization modules 2, all pass through copper facing tin band and connect.In other examples, for example
With reference to the embodiment shown in Fig. 3, go here and there double-side cell piece more and multiple optimization module is also led to first electrode 61 and second electrode 62
Cross copper facing tin band to connect.
Here illustrates the operation principle of the two-sided photovoltaic module of the embodiment of the present invention.Multiple optimization modules 2, two-sided with many strings
The current value that in cell piece 3, the maximum double-side cell string of electric current produces is reference value, by the electric current optimization of each battery strings described
For described reference value.In this example, it is assumed that battery strings 31 and 32 are completely unobstructed, 33-36 is then at least partially obscured simultaneously.This
When, optimization module 21 only does MPPT maximum power point tracking to battery strings 31 and 32, keeps output voltage and the electricity of battery strings 31 and 32
Stream is constant.Because optimization module 21,22,23 is connected with each other, optimization module 22,23 is first each to double in its cells unit
Face battery strings MPPT maximum power point tracking, eliminates power mismatch.Then, optimization module 22,23 carrys out self-optimizing further according to receive
Battery strings 33,34 and battery strings 35,36 are carried out electric current optimization, make by the current information of the battery strings 31 and 32 of module 21 respectively
Battery strings 33,34 identical with the output current of battery strings 31 and 32 with the output current of battery strings 35,36 (battery strings 33,34 and
The output voltage of battery strings 35,36 accordingly reduces).So, optimization module 21,22,23 makes all battery strings all with same electric current
Carrying out power output, thus eliminating the current mismatch of battery strings 33,34 and battery strings 35,36 and battery strings 31 and 32, realizing relatively
Low current mismatch loss.
Optionally, optimization module 2, in addition to including realizing the power optimization part that MPPT maximum power point tracking and electric current optimize, is gone back
Can have other functions.For example, it is possible to have shutoff part and communication component.When the battery strings in parallel with a certain optimization module
Shielding rate too high when, this battery strings can be turned off, reduce power loss, and by communication component to control centre send letter
Number, come to safeguard in order to attendant.Or, when some battery strings damage of two-sided photovoltaic module or other positions are sent out
Raw damage, when leading to the electric current of certain optimization module reception and/or voltage to send abnormal, is sent to control centre by communication component
Signal, so that attendant comes to safeguard.
To be illustrated with one piece of two-sided photovoltaic module with 60 cell pieces below, to compare disclosed dual light
Volt assembly and difference in terms of power ascension for traditional two-sided photovoltaic module.In this example, component power is 300W, often
The power of two string cell pieces is 100W.All of battery strings at full capacity when work when electric current be 8A.Now every two string voltages
12.5V.
The example to compare for the 20% situation effect blocked is occurred with wherein a string wherein a piece of battery.Meanwhile, with normal
The two-sided photovoltaic module of rule is as comparative example.Conventional two-sided photovoltaic module also takes the pattern of multiple battery strings power generation cascade.
It is to realize a certain degree of optimization, conventional two-sided photovoltaic module is usually taken joins a diode in every two string battery strings simultaneously
The mode being optimized carries out limited optimization.In the above example, when in battery strings in conventional two-sided photovoltaic module
Wherein a piece of battery when occurring 20% to block, the diode in conventional line box can be opened, the battery strings short circuit being blocked.This
When, this two strings power output is 0, and diode in parallel can consume about 3W simultaneously, and so whole assembly power output is 0+100+
100-3=197W.
On the other side, when the wherein a piece of battery in battery strings in two-sided photovoltaic module provided by the present invention is sent out
When life 20% is blocked, assembly is still operated in maximum power point.Specifically, the battery strings string current attenuation 20% being blocked is reduced to
6.4A, it is still 12.5V, power about 80W that voltage is basically unchanged, and meanwhile, electric current optimizes function and can convert the current into 8A, voltage drop
Low for 10V, then export.So string 4 string 5 general powers are reduced to 80W, and output current is still 8A, the battery strings that other are connected and
Assembly will not have an impact, and monoblock unit power is changed into 80+100+100=280W, and only output voltage is reduced to 35V by 37.5V.
But the double-side assembly of the relatively common line box of power is high by about 40%, and power ascension effect is clearly.
The present invention in fact also discloses a kind of photovoltaic generating system, including multiple above-mentioned photovoltaic modulies.And, upper
State the monolithic battery of assembly of generating composition system or whole assembly in batch production all only by cell piece front power, electricity
Stream and defects detection result carry out stepping, and the monolithic battery of same stepping is formed assembly, the assembly of same shelves is connected into and sends out
Electric pathway.Thus, multiple photovoltaic modulies of photovoltaic generating system have the front power of identical gear, electric current and defects detection knot
Really.Even if only stepping is carried out to front, give no thought to back side light intensity coupling, power match and the electric current of two-sided photovoltaic module
Join problem.The two-sided photovoltaic module linking together is appointed so can be in the optimal power rating work of each generator unit, with relatively
Little power loss collaborative work.
Specific connected mode, interface structure etc. flexibly can be arranged according to actual conditions, for example, reference Fig. 3,
In this nonrestrictive example, photovoltaic module comprises 6 battery strings and 3 optimization modules, meanwhile, also has two electrodes 61
With 62.When building electricity generation system, all of photovoltaic module is divided into third gear according to power, between shelves, difference power is set as 2%.And
The electrode of the photovoltaic module of same shelves is connected together to cascaded structure.For example with an electrode 61 of a photovoltaic module be defeated
Go out end, another electrode 62 is connected with an electrode 61 of another photovoltaic module being disposed adjacent, and constantly repeats, until will own
The photovoltaic module of same shelves all connects, using another electrode 62 of last assembly as another output end.Then, by each shelves
Final output integrated after generate electricity by way of merging two or more grid systems.
This photovoltaic generating system can use existing monolithic battery and subassembly line, supplier, production as far as possible
In the case of enterprise schema, realize higher generating efficiency, existing battery and assembly production model need not be carried out at all
The change of property, realizes the raising of generating efficiency with relatively low cost.
The above, be only presently preferred embodiments of the present invention, and not the present invention is made with any pro forma restriction.Cause
This, every content without departing from technical solution of the present invention, simply the technical spirit of the foundation present invention is to made for any of the above embodiments
Any simple modification, equivalent conversion, all still fall within the protection domain of technical solution of the present invention.
Claims (10)
1. a kind of two-sided photovoltaic module, including main body, many string double-side cell pieces and multiple optimization module, described many string double-side cells
Piece and multiple optimization module setting on the body it is characterised in that：
The described cell piece of a string or many string is in parallel with an optimization module, forms battery unit, multiple described battery unit strings
Connection connects；
Each described optimization module first carries out MPPT maximum power point tracking for described a string or multi-string battery piece in parallel therewith,
Carry out electric current optimization again.
2. photovoltaic module according to claim 1 it is characterised in that：Every two battery strings of being made up of described cell piece of string with
One optimization module parallel connection, forms battery unit.
3. photovoltaic module according to claim 1 it is characterised in that：Also include the first glassy layer and the second glassy layer；
Described many string double-side cell pieces are arranged on described in the way of being arranged between described first glassy layer and the second glassy layer
In main body.
4. photovoltaic module according to claim 3 it is characterised in that：Described optimization module is laminated to described first glassy layer
With second between glassy layer.
5. photovoltaic module according to claim 3 it is characterised in that：It is additionally provided with a line box, described line box is arranged on described
Outside first glassy layer and the second glassy layer, the plurality of optimization module is arranged in described line box.
6. photovoltaic module according to claim 3 it is characterised in that：It is additionally provided with multiple line box, the plurality of line box all sets
Put outside described first glassy layer and the second glassy layer, each of the plurality of optimization module is all disposed within an independence
Line box in.
7. photovoltaic module according to claim 1 it is characterised in that：Between described many string double-side cell pieces, the plurality of
Between optimization module, between described many string double-side cell pieces and the plurality of optimization module, connected by copper facing tin band；
Described photovoltaic module is additionally provided with first electrode and second electrode, described many string double-side cell pieces and multiple optimization module and institute
State first electrode and second electrode is passed through copper facing tin band and connected.
8. photovoltaic module according to claim 1 it is characterised in that：The plurality of optimization module electrical connection, with described many
The current value that in string double-side cell piece, the maximum double-side cell string of electric current produces is reference value, by the electric current of each battery strings described
It is optimized for described reference value.
9. photovoltaic module according to claim 1 it is characterised in that：Described optimization module includes power optimization part, pass
Disconnected part and communication component.
10. a kind of photovoltaic generating system is it is characterised in that include multiple photovoltaic groups as described in any one in claim 1-9
Part, the plurality of photovoltaic module has front power, electric current and the defects detection result of identical gear.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610984318.7A CN106452352A (en) | 2016-11-09 | 2016-11-09 | Double-sided photovoltaic module |
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| CN201610984318.7A CN106452352A (en) | 2016-11-09 | 2016-11-09 | Double-sided photovoltaic module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4109744A3 (en) * | 2021-05-31 | 2023-03-01 | Huawei Digital Power Technologies Co., Ltd. | Photovoltaic module and photovoltaic system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4109744A3 (en) * | 2021-05-31 | 2023-03-01 | Huawei Digital Power Technologies Co., Ltd. | Photovoltaic module and photovoltaic system |
| US11824493B2 (en) | 2021-05-31 | 2023-11-21 | Huawei Digital Power Technologies Co., Ltd. | Photovoltaic module and photovoltaic system |
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