CN208093574U - A kind of imbrication double-side assembly - Google Patents
A kind of imbrication double-side assembly Download PDFInfo
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- CN208093574U CN208093574U CN201820494650.XU CN201820494650U CN208093574U CN 208093574 U CN208093574 U CN 208093574U CN 201820494650 U CN201820494650 U CN 201820494650U CN 208093574 U CN208093574 U CN 208093574U
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- double
- imbrication
- side cell
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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
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Abstract
The utility model provides a kind of imbrication double-side assembly, which includes main body, and imbrication double-side cell chip arrays, welding busbar and the setting of power optimization device terminal box are on the body；With imbricate longitudinal arrangement, adjacent cell piece line misregistration arrangement laminates imbrication double-side cell chip arrays, makes between double-side cell piece using netted series-parallel connection as circuit connecting mode, that is, the double-side cell piece gone together is first in parallel, then connects with the double-side cell piece row of uplink and downlink；Imbrication double-side cell chip arrays output current is linked into power optimization device terminal box by welding busbar, and power optimization device terminal box ensures that the double-side cell chip arrays power generation moment that it is connected is in maximum power point output state；The utility model utilizes imbrication technology, and the mode that laminates is that dislocation arrangement laminates, and reduces power mismatch problem between double-side cell piece, reduces inter-module power mismatch problem using power optimization device terminal box.
Description
Technical field
The utility model is related to field of photovoltaic power generation, in particular to a kind of imbrication double-side assembly.
Background technology
The popular point understanding of double-side assembly is exactly the component that positive and negative can generate electricity, and component front receives sunlight direct light
Power generation, the back side are generated electricity by the scattering light of the reflected light and surrounding that absorb background.Imbrication technology (also referred to as lamination techniques) is by light
Volt battery is closely arranged with series and parallel structure so that the battery more than 13% or more general components can be placed under unit area
Piece, therefore imbrication component has the characteristics that output power is high, internal loss is low, reverse current hot spot effect is small.Photovoltaic module is excellent
Changing has step-up/step-down circuit and sensor inside device, real-time sampling is carried out to cell panel output voltage, electric current, by advanced
MPPT algorithm controls step-up/step-down circuit, keeps component operation in the state of maximum power, and output matches string formation voltage-current relationship,
Generated energy is improved to the maximum extent.
Current double-side assembly has the following problems：
1 battery strings arrangement optimization is poor：Traditional double-side assembly is formed by monolithic battery string Series connection welding, is caused in double-side assembly
Hinder larger, while distance is larger between cell piece, and space availability ratio is smaller, causes power loss larger inside double-side assembly.
2 cell pieces series connection mismatch：Traditional components are composed in series by cell piece, and due to manufacturing, constructing etc., factors cause monolithic
Cell piece is impaired not to generate electricity, and influences other concatenated cell piece normal power generations of the string.
3 back side light intensity mismatches.The back side of double-side assembly mainly absorb reflected light and scattering light, due to actual environment usually compared with
For complexity, photovoltaic module back has terminal box, holder to support also shield portions component back surface, necessarily causes to be radiated at the component back of the body
Face light intensity variation amplitude is larger, connection in series-parallel loss aggravation.
The optimization of 4 diode powers is poor.When diode faces such mismatch in the terminal box of current double-side assembly, optimization effect
Fruit is poor, and monolithic battery piece, which blocks, can cause whole string battery strings power loss, while diode being caused to open, and influences other electricity
The normal power output of pond string.
The photovoltaic generating system currently built with double-side assembly has the following problems：
The inherent characteristic of 1 double-side assembly.Output parameter per double sided device is all different, and is promised to undertake after strictly sorting
Power deviation is about 3%.And the deviation of electric current and voltage will be greater than 3%.Therefore there are power, current mismatch in actually using,
Generated energy is caused to lose.
Mismatch between 2 double-side assemblies：When occurring partial occlusion (including cloud, surrounding shelter, birds droppings, part cleaning etc. because
Element) connection in series-parallel power mismatch loss will aggravation.
3, non-uniform temperature.Republicanism photovoltaic plant in Huaneng Group is surveyed, August, medium irradiation intensity, breeze conditions, each holder
The left and right ends component temperature difference is about 10 degrees Celsius, and power deviation is up to 4%.
4. information-based inadequate.Photovoltaic plant monitoring at present is not yet accurate to component level monitoring, cannot really realize single group
25 years full period managements of part.
For above-mentioned problem, it is highly desirable to provide more rational solution
Invention content
In order to overcome the above-mentioned problems of the prior art, the utility model to provide a kind of imbrication double-side assembly, eliminate
Mismatch loss, improves the generated output of component.
The utility model provides a kind of imbrication double-side assembly, which includes main body, imbrication double-side cell chip arrays, welding
Busbar and the setting of power optimization device terminal box are on the body.
Imbrication double-side cell chip arrays by multiple transverse directions and multiple longitudinal double-side cell pieces with imbricate longitudinal arrangement, it is adjacent
Double-side cell piece line misregistration arrangement laminates, and makes between double-side cell piece using netted series-parallel connection as circuit connecting mode, that is, that goes together is two-sided
Cell piece is first in parallel, then connects with the double-side cell piece row of uplink and downlink.Dislocation arrangement, which laminates, reduces internal resistance loss, promotion group
Part output power.
Imbrication double-side cell array periphery lays welding busbar, and the welding busbar includes about two and laterally converges
The longitudinal busbar of item and two right sides：Double-side cell chip arrays output current is linked into power optimization device terminal box by busbar
In.
Imbrication double-side cell chip arrays and welding busbar constitute circuit layer.
Main body further includes upper layer glassy layer and lower layer's glassy layer, is fixed with the main body, and the circuit layer is clamped described
Between layer glass layer.
Power optimization device terminal box is arranged except lower layer's glassy layer, is fixed on the glassy layer upper right corner with glue.
Power optimization device terminal box includes measurement module, processor module, power module and power carrier communication module.It surveys
Amount module acquires the data such as voltage, electric current, power, the direct-to-ground capacitance of high efficient two-sided imbrication component, maximum built in processor module
Power tracking algorithm controls power module dc-dc circuits, ensures its imbrication double-side cell chip arrays power generation moment connected
In maximum power point output state.Power carrier communication module exports the data of measurement with power carrier signal along power line
Data, while receiving supervisory control signal.
Imbrication double-side assembly provided by the utility model is integrated with double-side assembly technology, imbrication technology and power optimization device
Technology.Double-side assembly technology absorbs the scattering light of the reflected light and surrounding of background by the back side, and 30% hair is promoted when condition ideal
Electricity.Imbrication technology makes full use of the gap in component, equal area that can place the cell area more by 6% than tradition, dislocation row
Cloth laminates the circuit connecting mode that netted series-parallel connection is formed between making double-side cell piece, can reduce power mismatch between double-side cell piece
Caused by lose, while reducing the internal resistance of double-side assembly, improve generated energy.Power optimization device terminal box eliminates work(between double-side assembly
Mismatch loss caused by rate deviation, while power carrier communication output precision information is utilized, it realizes component level monitoring, improves photovoltaic
The electricity generation system level of IT application.Three kinds of Integration ofTechnologies, income superposition, especially in the light conditions complex condition such as roof, mountainous region
40% generated energy can be improved than general components in imbrication double-side assembly.
Description of the drawings
Attached drawing described herein is used to provide a further understanding of the present invention, and is constituted part of this application,
The exemplary embodiment of the utility model and the description thereof are used to explain the utility model, does not constitute to the improper of the utility model
It limits.In the accompanying drawings：
Fig. 1 is the structure chart of the imbrication double-side assembly of the utility model embodiment.
Fig. 2 is the decomposition diagram of the imbrication double-side assembly of the utility model embodiment.
Fig. 3 is that the double-side cell piece dislocation arrangement of the utility model embodiment laminates schematic diagram.
Fig. 4 is the double-side cell piece circuit network schematic diagram of the utility model embodiment.
Fig. 5 is the power optimization device terminal box functional schematic of the utility model embodiment.
Specific implementation mode
In order to make those skilled in the art more fully understand the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
Illustrate the structure of an optional embodiment of the utility model referring initially to Fig. 1.The utility model provides one
Kind imbrication double-side assembly, including main body 1, imbrication double-side cell chip arrays 2, welding busbar 3 and power optimization device terminal box 4 are set
It sets in the main body 1.
With reference to figure 2, main body includes 13 two pieces of tempered glass of upper layer glassy layer 11 and lower layer's glassy layer, and main body 1 can be each
The agent structure, such as frame-type, fence type etc. of two-sided photovoltaic module known to kind.Imbrication double-side cell chip arrays 2 and welding
Busbar 3 constitutes circuit layer 12.Upper layer glassy layer 11 and lower layer's glassy layer 13 are fixed in the way of lamination, binder, hot pressing etc.
Connection, centre is enclosed in by circuit layer 12.Between upper layer glassy layer 11 and lower layer's glassy layer 13 can be filled EVA, polyolefin, silica gel or
Person's high-molecular compound supplements gap.
With reference to figure 1 and Fig. 3, imbrication double-side cell chip arrays 2 are laterally 6, longitudinal 72 double-side cell pieces are mutually stacked
Swaging is at two-sided cell piece array.Imbrication double-side cell chip arrays 2 include double-side cell piece odd-numbered line 21, and double-side cell piece is even
Several rows 22.Double-side cell piece odd-numbered line 21 includes the left double-side cell piece 211 of odd-numbered line and the right double-side cell piece of odd-numbered line 212.It is double
Face cell piece even number line 22 includes the left double-side cell piece 221 of even number line and the right double-side cell piece of even number line 222.
The electrode of adjacent double-side cell piece row laminates connected.The anode of double-side cell piece even number line 22 is laminated on double-side cell
On the cathode of piece odd-numbered line 21.Similarly, the anode of double-side cell piece odd-numbered line is laminated on the cathode of several rows of double-side cell piece even number
On.Adjacent cell piece line misregistration arrangement laminates, and makes double-side cell piece odd-numbered line 21 with double-side cell piece even number line 22 in lateral side
Dislocation upwards, there are partial distances.Dislocation arrangement laminate cause 221 anode of the left double-side cell piece of the even number line in even number line i.e. with
Left 211 cathode of double-side cell piece of odd-numbered line in odd-numbered line is connected, and negative with the right double-side cell piece 212 of the odd-numbered line of same odd-numbered line
Extremely it is connected.Similarly, right 212 cathode of double-side cell piece of odd-numbered line in odd-numbered line is i.e. and the left double-side cell of even number line in even number line
221 anode of piece is connected, and is connected with right 222 anode of double-side cell piece of the even number line of same even number line.
With reference to figure 4, adjacent double-side cell piece line misregistration arrangement laminates the circuit that netted series-parallel connection is formed between making double-side cell piece
Connection type, that is, the double-side cell piece gone together is first in parallel, then connects with the double-side cell piece row of uplink and downlink.
With reference to figure 1, welding busbar 3 includes that anode welding busbar 31 and cathode weld busbar 32.Anode welding converges
It flows item 31 and connects 2 anode of power optimization device terminal box 4 and imbrication double-side cell chip arrays, cathode welds busbar 32 and connects power
2 cathode of optimizer terminal box 4 and imbrication double-side cell chip arrays.Welding busbar 3 and power optimization device terminal box 4 are arranged in
2 periphery of imbrication double-side cell chip arrays, is not limited to the given positions Fig. 1.
With reference to figure 5, power optimization device terminal box 4 includes measurement module 41, processor module 42, power module 43 and electricity
Power carrier communication module 44.The electricity that the measurement module 41 passes through the sensor measurement imbrication double-side assembly built in power module 43
Pressure, electric current, power data, while built-in sensors measure the data such as direct-to-ground capacitance, realize component level monitoring.Processor module
Maximal power tracing algorithm built in 42, outflow control signal, controls power module 43, ensures its imbrication double-side cell connected
The chip arrays power generation moment is in maximum power point output state.In the data that processor module 42 simultaneously transmits measurement module 41
Power carrier communication module 44 is passed to, while receiving top level control signal from power carrier communication module 44.43 mould of power module
Block receives processor module 42 and controls signal, and built-in DC-DC circuit realizes power conversion.Power carrier communication module 44 will be located
The data that reason device module 42 transmits, along power line output data, while receiving supervisory control signal with power carrier signal, returns
It is transmitted to processor module 42.
Power optimization device terminal box 4 has the function of other.Communication unit is by direct current power carrier system by direct-to-ground capacitance
Data transmission is to upper layer information collecting unit, and upper layer collecting unit is according to the arrangement of the direct-to-ground capacitance size order of feedback, Neng Gouzhun
Really judge position of the two-sided imbrication component in the two-sided imbrication component string formation.
It laminates below by the revealed dislocation arrangement of Theory comparison the utility model and is carried in power with traditional double-side assembly
Go up the difference in face.Traditional double-side assembly is that 72 double-side cell pieces are connected, and is caused when wherein a piece of double-side cell piece is blocked
Power reduces, and when internal resistance becomes larger, is influenced by larger power mismatch with other all double-side cell sector-meetings are gone here and there.And the utility model
When double-side cell piece is blocked internal resistance and is become larger in a kind of imbrication double-side assembly provided, since colleague's double-side cell piece is in parallel,
Electric current can largely walk the small double-side cell piece of other internal resistances and to flow through the double-side cell piece electric current blocked then seldom, to power
Mismatch influences less.
Compare power optimization device terminal box used by the utility model below by experiment generating electricity with conventional electrical connectors
Amount promotes difference above.Use the 5kW photovoltaic generating systems of the external hanging type power optimization device module composition of same technique, unit
Power photovoltaic power generation quantity significantly improves, and has obtained the maximum value in data more than 12%.It is average under Pekinese's illumination condition
Every kilowatt of additional issue 0.2kWh daily.
A kind of imbrication double-side assembly provided by the utility model is integrated with double-side assembly technology, imbrication technology and power optimization
Device technology improves photovoltaic module generating efficiency, improves unit area generated energy, reduces in double-side assembly work(between double-side cell piece
Rate is lost caused by being adapted to, and is lost caused by eliminating inter-module adaptation, while can realize component level prison with output precision information
Control improves the photovoltaic generating system level of IT application.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of imbrication double-side assembly, including main body (1), imbrication double-side cell chip arrays (2), welding busbar (3) and power
Optimizer terminal box (4), the imbrication double-side cell chip arrays (2), welding busbar (3) and power optimization device terminal box (4)
It is arranged in the main body (1)；It is characterized in that：Imbrication double-side cell chip arrays (2) are two-sided by multiple transverse directions and multiple longitudinal directions
Cell piece is laminated with imbricate longitudinal arrangement, adjacent double-side cell piece line misregistration arrangement；Imbrication double-side cell chip arrays (2) and weldering
It connects busbar (3) and forms circuit layer (12).
2. imbrication double-side assembly according to claim 1, it is characterised in that：It is with netted series-parallel connection between the double-side cell piece
Circuit connecting mode, that is, the double-side cell piece gone together is first in parallel, then connects with the double-side cell piece row of uplink and downlink.
3. imbrication double-side assembly according to claim 1, it is characterised in that：The welding busbar (3) includes that anode welds
Connect busbar (31) and cathode welding busbar (32), anode welding busbar (31) connect power optimization device terminal box (4) and
Imbrication double-side cell chip arrays (2) anode, cathode welds busbar (32) connection power optimization device terminal box (4) and imbrication is two-sided
Battery chip arrays (2) cathode；Welding busbar (3) and power optimization device terminal box (4) are arranged in imbrication double-side cell chip arrays
(2) peripheral.
4. imbrication double-side assembly according to claim 1, it is characterised in that：Main body (1) further includes upper layer glassy layer (11)
Fixed with the main body (1) with lower layer's glassy layer (13), the circuit layer (12) clamps in upper layer glassy layer (11) and lower layer's glass
Between glass layer (13).
5. imbrication double-side assembly according to claim 3, it is characterised in that：Power optimization device terminal box (4) setting
Except lower layer's glassy layer (13) of main body (1), it is fixed on lower layer's glassy layer (13) upper right corner with glue.
6. imbrication double-side assembly according to claim 1, it is characterised in that：The power optimization device terminal box (4) includes
Measurement module (41), processor module (42), power module (43) and power carrier communication module (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494650.XU CN208093574U (en) | 2018-04-09 | 2018-04-09 | A kind of imbrication double-side assembly |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494650.XU CN208093574U (en) | 2018-04-09 | 2018-04-09 | A kind of imbrication double-side assembly |
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| CN208093574U true CN208093574U (en) | 2018-11-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137293A (en) * | 2019-06-17 | 2019-08-16 | 中国华能集团有限公司 | A kind of full imbrication photovoltaic module and its manufacturing method in series and parallel |
| CN110176510A (en) * | 2019-06-05 | 2019-08-27 | 江苏赛拉弗光伏系统有限公司 | A kind of BIPV imbrication component |
| CN110518082A (en) * | 2019-09-23 | 2019-11-29 | 浙江晶科能源有限公司 | A kind of cell piece group, photovoltaic module and photovoltaic apparatus |
| CN110649127A (en) * | 2019-10-29 | 2020-01-03 | 中国华能集团有限公司 | Laminated photovoltaic module manufacturing system and working method thereof |
| CN113594282A (en) * | 2021-09-26 | 2021-11-02 | 中国华能集团清洁能源技术研究院有限公司 | Full-series-parallel photovoltaic module and manufacturing method thereof |
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2018
- 2018-04-09 CN CN201820494650.XU patent/CN208093574U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110176510A (en) * | 2019-06-05 | 2019-08-27 | 江苏赛拉弗光伏系统有限公司 | A kind of BIPV imbrication component |
| CN110137293A (en) * | 2019-06-17 | 2019-08-16 | 中国华能集团有限公司 | A kind of full imbrication photovoltaic module and its manufacturing method in series and parallel |
| CN110518082A (en) * | 2019-09-23 | 2019-11-29 | 浙江晶科能源有限公司 | A kind of cell piece group, photovoltaic module and photovoltaic apparatus |
| CN110649127A (en) * | 2019-10-29 | 2020-01-03 | 中国华能集团有限公司 | Laminated photovoltaic module manufacturing system and working method thereof |
| CN110649127B (en) * | 2019-10-29 | 2024-05-14 | 中国华能集团有限公司 | Manufacturing system of shingled photovoltaic module and working method thereof |
| CN113594282A (en) * | 2021-09-26 | 2021-11-02 | 中国华能集团清洁能源技术研究院有限公司 | Full-series-parallel photovoltaic module and manufacturing method thereof |
| CN113594282B (en) * | 2021-09-26 | 2022-07-19 | 中国华能集团清洁能源技术研究院有限公司 | Full-series-parallel photovoltaic module and manufacturing method thereof |
| WO2023045158A1 (en) * | 2021-09-26 | 2023-03-30 | 中国华能集团清洁能源技术研究院有限公司 | Full-serial-parallel photovoltaic assembly and manufacturing method therefor |
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