WO2023099771A1 - Solarzellenmodul - Google Patents
Solarzellenmodul Download PDFInfo
- Publication number
- WO2023099771A1 WO2023099771A1 PCT/EP2022/084294 EP2022084294W WO2023099771A1 WO 2023099771 A1 WO2023099771 A1 WO 2023099771A1 EP 2022084294 W EP2022084294 W EP 2022084294W WO 2023099771 A1 WO2023099771 A1 WO 2023099771A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- segment
- module
- solar cell
- sub
- bypass
- Prior art date
Links
- 238000009413 insulation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 description 29
- 238000010586 diagram Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000002800 charge carrier Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/70—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules comprising bypass diodes
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F19/00—Integrated devices, or assemblies of multiple devices, comprising at least one photovoltaic cell covered by group H10F10/00, e.g. photovoltaic modules
- H10F19/90—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers
- H10F19/902—Structures for connecting between photovoltaic cells, e.g. interconnections or insulating spacers for series or parallel connection of photovoltaic cells
-
- 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
Definitions
- the invention relates to a solar cell module according to the preamble of claim 1.
- Solar cells are sensitive semiconductor components. In order to protect them against environmental influences over the long term and to achieve manageable electrical output parameters, solar cells are typically electrically connected and encapsulated in a module structure.
- Partial shading in which individual solar cells are completely or partially shaded, for example due to dirt or objects casting shadows on the solar cell module, is problematic when using solar cell modules.
- partial shading the electrical output power of the entire solar cell module can be significantly reduced or drop to zero.
- partial shading can lead to considerable heating of the partially shaded solar cell, so there is a risk of damage to the solar cell and the module structure. It is therefore known to connect bypass diodes in parallel to a plurality of solar cells, so that in the event of partial shading in a partial area of the solar cell module, the solar cells in this partial area are bypassed via the bypass diode.
- a solar cell module therefore typically has a number of module segments, with each module segment having at least one solar cell string.
- This solar cell string has several solar cells connected in series.
- module segments of a solar cell module are known from US 2016/0226439 A1, each module segment being assigned a bypass diode connected in parallel.
- WO2015/001413 discloses a solar cell module with a plurality of module segments and bypass diodes arranged centrally in the solar cell module.
- DE1020201280807 discloses a solar cell module with a plurality of module segments, which does not lead to a total failure of the solar cell module if the solar cells of the solar cell module are shaded at any edge of the module.
- the present invention is based on the object of adapting the number of solar cells in a string, which are protected by a bypass diode, for a structure with little additional material expenditure, which nevertheless does not become a Total failure of the solar cell module leads.
- This structure also reduces the component area requirement in relation to the total module area and thus the areal power density of the solar module is increased.
- the solar cell module according to the invention has at least one first module segment with a first sub-segment and at least one second sub-segment.
- the sub-segments have at least one solar cell string.
- Each of the solar cell strings is composed of a plurality of solar cells connected in series.
- the sub-segments have a first electrical pole and a second electrical pole.
- the two sub-segments of the first module segment are connected in series via sub-segment connectors.
- the first module segment has a plurality of bypass elements, at least a first and a second bypass element.
- the first pole of the first bypass element of the first module segment is electrically conductively connected to the first pole of the first sub-segment of the first module segment and that the second pole of the second bypass element of the first module segment is connected to the second pole of the second sub-segment of the first module segment is electrically conductively connected.
- the second pole of the first bypass element of the first module segment and the first pole of the second bypass element of the first module segment are electrically conductively connected to the sub-segment connector of the first module segment by means of a bypass connector.
- the solar cell module has a further, second module segment.
- this second module segment also has a first at least one second bypass element. It is essential here that the first pole of the first bypass element of the second module segment is connected to the first pole of the first sub-segment of the second module segment. It is also essential that the second pole of the second bypass element of the second module segment is electrically conductively connected to the second pole of the second sub-segment of the second module segment and the second pole of the first bypass element of the second module segment and the first pole of the second bypass element of the second module segment by means of a Bypass connector are electrically conductively connected to the sub-segment connector of the second module segment. It is also essential that the first and the second module segment are connected directly or indirectly, preferably directly, in series or that the first and the second module segment are connected directly or indirectly, preferably directly, in parallel.
- the solar cell module according to the invention thus has at least two module segments connected in series or in parallel, which each have at least two sub-segments, with the two sub-segments being protected against partial shading by a bypass element connected in parallel to these two module segments, with this parallel connection of the Bypass elements is executed via a bypass connector.
- a bypass element In the majority of the configurations known from the prior art, it is necessary for a bypass element to be electrically connected to two opposite ends of a module segment in order to achieve a parallel connection. This requires connecting lines for the bypass element, which typically have to have the length of a module segment, in particular at least the length of a solar cell string of the module segment.
- the solar cell module according to the invention enables an arrangement of the bypass elements and sub-segments so that at least a first and a second bypass element can be connected to a common sub-segment connector via a bypass connector.
- the advantage here is that the connection by means of a bypass connector results in a reduction in the cost of materials due to the merging of the otherwise required individual connections of the bypass elements with the sub-segment connector.
- Such connectors make it possible to protect small sub-segments with a bypass in order to reduce partial shading losses.
- the use of a bypass connector enables a more flexible arrangement of the bypass elements on the solar module. It is also advantageous that this structure reduces the area required for the component in relation to the total module area and thus increases the power density per unit area of the solar module.
- bypass connectors are arranged between the first and the second sub-segment of the respective module segment, in particular in the middle between the first and the second sub-segment of the respective module segment.
- the bypass connectors of the respective module segment are arranged in a central area on which the sub-segments of the respective module segment adjoin.
- One advantage of this embodiment is the short connecting lines for connecting the bypass elements to the respective sub-segments.
- the bypass connectors of the respective module segment are arranged in a central area on which module segments adjoin.
- sub-segment connector can be used on the one hand for connecting sub-segments in series and on the other hand as a contact point for bypass element connectors.
- At least one segment connector serves to connect a first and a second module segment in parallel.
- the advantage of the design is that when connected in parallel by means of at least one segment connector, the total voltage across a solar module is lower than when connected in series by means of segment connectors.
- a configuration that is particularly optimized for partial shading results in an advantageous development in which a first and a second module segment, which are connected by means of segment connectors, are arranged next to one another in a longitudinal arrangement which is perpendicular to the alignment of the solar cell strings.
- the solar cell strings of the solar cell module are arranged such that the solar cell module has a shorter edge and a longer edge and that the solar cell strings of a sub-segment are arranged parallel to the short edge inside the solar cell module along a straight line.
- the solar cell strings of a sub-segment of a module segment advantageously have the same number of solar cells. This makes it possible in a simple manner for all sub-segments to supply the same electrical voltage under standard conditions, so that there is no mismatch and therefore no loss due to different voltages in the individual sub-segments.
- the individual module segments of a solar module have the identical number of solar cell strings and the solar cell strings each have the identical number of solar cells.
- all module segments it is made possible in a simple manner for all module segments to supply the same current strength under standard conditions, so that there is no mismatch and thus no loss due to different current strengths of the individual module segments.
- all bypass elements of the same number of solar cells connected in series are connected in parallel. The same or similar bypass elements can therefore be used.
- the sub-segments of a module segment lie in one plane and the bypass elements of the respective module segment are arranged at a distance from this plane.
- the previously listed module segment stack embodiment is advantageously connected in an electrically conductive manner to form a plurality of module segment stack groups via a module segment stack connector, so that the module segment stacks are oriented next to one another in a longitudinal arrangement which is perpendicular to the extent of the solar cell string.
- the module stack connector is positioned within a junction box.
- the module segments are positioned stacked in an arrangement, these module segment stacks are arranged such that the solar cells of the solar cell string of the sub-segment of a module segment are arranged one above the other with the solar cells of the solar cell string of a sub-segment of another module segment.
- the shingle arrangement form is advantageously connected in an electrically conductive manner to form a plurality of module segment stack groups via a module segment stack connector, so that the module segment stacks are oriented next to one another in a longitudinal arrangement which is perpendicular to the alignment of the solar cell string extension.
- the module stack connector is not designed directly as a component.
- the function of the module stack connector is taken over by an electrically conductive adhesive, which, in addition to the electrically conductive connection, implements a mechanical connection of the module stack.
- the adhesive creates a front-to-back connection of the respective module segments.
- the main advantage of this design is the reduction in electrical losses within the solar module.
- the first and second sub-segments of a module segment are arranged parallel to one another and electrically connected in series at a first edge region, in particular by means of a sub-segment connector, preferably by means of a straight sub-segment connector.
- the parallel arrangement of the sub-segments is advantageous, since this results in an ideal utilization of the area of the solar cell module.
- all the bypass elements of a module segment are arranged at the edge of an edge area of the solar cell module.
- the arrangement of the bypass elements at the edge is advantageous, since this achieves improved surface utilization of the solar cell module and the bypass elements can be arranged in at least one junction box at the edge on the back of the solar cell module.
- the length of the bypass connector is less than 250 cm, preferably less than 150 cm, particularly preferably less than 130 cm and/or greater than 30 cm, preferably greater than 80 cm.
- the advantage of the length specification of the bypass connector is that it covers the common solar module format dimensions.
- bypass connectors of a module segment are on a first level and the solar cells of the respective module segment are on a second level, which is spaced apart from the first level and insulation is arranged between the first and second levels is.
- the advantage of this arrangement is that in the geometric arrangement of the solar cells or the solar cell strings no additional area for the Bypass connector must be spent. The base area is reduced and the area power density of the solar module is increased.
- the solar cells and/or the solar cell module have a rectangular shape with an aspect ratio greater than one.
- the advantage here is that the common form factor of a conventional solar module is retained.
- a first and a second module segment are each additionally expanded by a sub-segment and a third module segment.
- This third module segment is arranged between the first and the second module segment.
- the first and the second module segment each have a third bypass element.
- the sub-segments are arranged parallel to one another in four pairs of sub-segments.
- the three bypass elements of the first module segment are arranged centrally between the first and second pair of sub-segments of the module.
- the bypass elements are arranged in a central area on which the three sub-segments of the first module segment adjoin.
- the first and second bypass element of the third module segment are arranged centrally between the first sub-segment and the second sub-segment of the third module segment, particularly preferably arranged in such a way that the bypass elements are arranged in a central area on which the two sub-segments of the third module segment and the second sub-segment of the adjoin the first module segment and the first sub-segment of the second module segment.
- the bypass elements of the second module segment are arranged centrally between the third and fourth pair of sub-segments of the module, particularly preferably so that the bypass elements are arranged in a central area on which the three sub-segments of the second module segment adjoin.
- the advantage of this particularly advantageous embodiment is that by connecting a further module segment to two existing module segments and supplementing the existing one with a further sub-segment and a bypass element and the easily scalable extension of several module segments to form a larger solar module with an increased output power.
- the number of solar cells in each solar cell string is advantageously in the range of 5 to 65 solar cells in a first and second module segment.
- solar cells with the same performance data in particular the same voltage and current at the optimal operating point under standard conditions, are used for all sub-segments within the scope of the usual manufacturing tolerances.
- the number of solar cell strings in the sub-segments is advantageously in the range of two to eight solar cell strings per sub-segment.
- the solar cells of a solar cell string are connected in series using the methods known per se.
- the solar cells can be arranged using shingle technology, so that two adjacent solar cells are arranged in an overlapping manner and the electrical contacting of the two solar cells for series connection is formed in the overlapping area.
- An overlapping arrangement of the solar cells of a string is also within the scope of the invention, the solar cells being electrically connected in series by means of at least one cell connector. Such an arrangement is called a "negative gap" arrangement.
- two adjacent solar cells of a solar cell string are electrically connected with at least one, preferably with at least two, in particular at least three cell connectors, to form the series connection of the solar cells.
- metallic elements with a rectangular, round cross section or with a structured surface are used as cell connectors.
- a module segment is characterized in that a module segment has at least one solar cell string. If a module segment has a number of solar cell strings, then these solar cell strings are preferably connected in parallel. The solar cell strings in each of the sub-segments are advantageously connected exclusively in parallel. This results in a structurally simple design.
- each module segment in particular each sub-segment, has at least two solar cell strings connected in parallel, in order to achieve a higher current intensity compared to solar cells that are only connected in series.
- each sub-segment has exactly two or exactly three solar cell strings connected in parallel.
- bypass elements can be designed in a manner known per se, in particular the bypass diodes can also be designed as diodes, in particular Schottky diodes, as MOSFETs or as electronic switching devices and/or integrated circuits, in particular according to DE 102005012213 A1 and/or DE 10 2009 060 604 A1 scope of the invention.
- Each bypass element is advantageously connected to the same number of solar cells, in particular connected in parallel to the same number of solar cells.
- each bypass element is advantageously connected to the same number of solar cell strings, in particular connected in parallel. This is advantageous because all bypass elements of the module have the same requirements for the voltages and currents that occur, and bypass elements with the same optimum parameters can therefore be used.
- the solar cell module has a mirror plane. At least the spatial arrangement of the solar cells and preferably the spatial arrangement of the bypass elements is mirror-symmetrical with respect to the mirror plane. It is within the scope of the invention for the electrical arrangement of the solar cells (arrangement of the positive and negative terminals of the solar cell via which the solar cell is connected in series with the adjacent solar cell) not to be mirror-symmetrical to the mirror plane.
- the first module segment is mirrored along a vertical mirror plane and this module segment mirror is connected to the module segment by means of a segment connector, with the electrical alignment of the solar cells being constant in the module segment and in the module segment mirror and therefore not subject to any mirroring at the mirror plane.
- the second module segment represents a translational displacement of the first module segment with regard to the spatial arrangement of at least the solar cells and bypass elements, particularly preferably a translational displacement perpendicular to an extension direction of the solar cell strings of the first module segment. This advantageously applies to all module segments.
- At least one, preferably all other sub-segments of the solar cell module represent a translational displacement with regard to the spatial arrangement of at least solar cells and bypass elements.
- the electrical arrangement of the solar cells is mirror-symmetrical to the mirror plane.
- all solar cell strings of the solar cell module extend spatially parallel to a direction of extension and the solar cell module has a mirror plane running parallel to the direction of extension and perpendicular to the solar cell module, which represents a mirror plane at least for the spatial arrangement of the solar cells, the solar cell strings and the bypass diodes .
- the mirror plane is preferably perpendicular to the module plane (to the planar extension of the module).
- the mirror plane is advantageously arranged parallel to a longitudinal extent of the solar cell strings.
- the solar cell module advantageously has exactly one mirror plane.
- the solar cell module advantageously has a laminate in which at least one, preferably all, of the bypass elements are integrated. It is within the scope of the invention that the solar cell module is structurally designed in a manner known per se. In particular, it is within the scope of the invention that the solar cells of the solar cell module are arranged on a carrier plate and on the side facing the incidence of light during use a known optically transparent cover layer for encapsulating the solar cells is arranged. Furthermore, electrical contacts for connecting the solar cell module in a circuit are preferably arranged on the back of the solar cell module, in particular for connecting other solar cell modules.
- partial solar cells which are created by dividing a larger basic solar cell, in particular half or third cells as solar cells, is within the scope of the invention.
- the solar cells can have a semiconductor material as the absorbing material and one or more pn junctions for separating the charge carriers. It is also within the scope of the invention that materials from III. and V. to use solar cells based on the main group of the periodic table (so-called 111/V solar cells) or solar cells based on perovskite, in particular in combination with other materials.
- photovoltaic solar cells in particular photovoltaic solar cells based on a silicon substrate, are used to form the solar cell strings.
- solar cells that are known per se and are available on the market can be used.
- the solar cell module preferably has optically transparent layers on the front and back of the solar cell module, so that radiation, in particular special sunlight, both from the front and from the back of the solar cell module, strikes the solar cells through the encapsulation layers of the solar cell module.
- FIGS. 1 to 11 and FIG. 15 each show an exemplary embodiment of a solar cell module according to the invention.
- FIGS. 12 to 14 show solar cells which are used in the exemplary embodiments.
- FIGS. 1, 3 to 11 and 16 each show an exemplary embodiment of a solar cell module according to the invention, which has a mirror plane S.
- This mirror plane S runs through the arrow symbols shown in the figures and is perpendicular to the plane of the drawing.
- the spatial arrangement of the solar cells and the spatial arrangement of the bypass diodes are mirror-symmetrical to the mirror plane S, but not the electrical alignment of the solar cells (arrangement of the positive and negative terminals of the solar cell, via which the solar cell is connected to the neighboring solar cell connected in series).
- the electrical alignment is marked with an arrow symbol for each solar cell.
- the electrical alignment of the solar cells there is a translation perpendicular to the mirror plane S of the left half of the solar cell module to the right half in these exemplary embodiments.
- the exemplary embodiment of a solar cell module according to the invention shown in FIG. 1 has two module segments 3a and 3b.
- the partial segments 2a and 2b are assigned to the module segments 3a and the partial segments 2c and 2d to the module segment 3b by dashed lines.
- the solar cell strings 1a and 1b are assigned to the partial segment 2a, and a large number of solar cells 8 are assigned to these strings.
- the sub-segment 2b the solar cell strings 1c and 1d are assigned to these, in each case a large number of solar cells 8 are assigned.
- the solar cell strings 1e and 1f are assigned to the partial segment 2c, and a multiplicity of solar cells 8 are assigned to these strings.
- the solar cell strings 1g and 1h are assigned to the partial segment 2d.
- a multiplicity of solar cells 8 are assigned to these in each case.
- the number of solar cells 8 in the solar cell strings 1a to 1h is 16.
- the solar cells are represented schematically by a triangle arranged in a rectangle. This schematic representation represents the equivalent circuit diagram of a solar cell.
- the underlying equivalent circuit diagram is based on the general process description within a solar cell using the two-diode model.
- the orientation of the triangle within the rectangle refers to the diode arrangement of the two diodes within the equivalent circuit diagram.
- the technical direction of current flow within the solar cell thus corresponds to a direction opposite to the triangular orientation.
- the solar cells of the solar cell strings 1a to 1 are connected in series.
- the solar cell strings 1a and 1b are connected in parallel in the sub-segment 2a.
- the solar cell strings 1c and 1d are connected in parallel in the sub-segment 2b.
- the solar cell strings 1e and 1f are connected in parallel in the sub-segment 2c.
- the solar cell strings 1g and 1h are connected in parallel in the partial segment 2d.
- a sub-segment connector 6a is arranged between sub-segment 2a and sub-segment 2b. This sub-segment connector 6a creates an electrically conductive connection between the pole 2a.2 of the sub-segment 2a and the pole 2b.1 of the sub-segment 2b.
- a sub-segment connector 6b is arranged between sub-segment 2c and sub-segment 2d. This sub-segment connector 6b creates an electrically conductive connection between the pole 2c.2 of the sub-segment 2c and the pole 2d.1 of the sub-segment 2d.
- the pole 4a.1 of the bypass element 4a is electrically conductively connected to the pole 2a.1 of the partial segment 2a.
- the pole 4b.2 of the bypass element 4b is electrically conductively connected to the pole 2b.2 of the partial segment 2b.
- the poles 4a.2 and 4b.1 are electrically conductively connected to the contact 6a.3 of the sub-segment connector 6a via the bypass connector 5a.
- the pole 4c.1 of the bypass element 4c is electrically conductively connected to the pole 2c.1 of the partial segment 2c.
- the pole 4d.2 of the bypass element 4d is electrically conductively connected to the pole 2d.2 of the partial segment 2d.
- the poles 4c.2 and 4d.1 are electrically conductively connected to the contact 6b.3 of the sub-segment connector 6b via the bypass connector 5b.
- bypass elements 4a, 4b, 4c and 4d are each designed as a bypass diode. It is also within the scope of the invention to design the bypass elements in an alternative embodiment as described above, for example as MOSFETs.
- the module segment 3a is electrically conductively connected to the module segment 3b via a segment connector 7 .
- the segment connector 7 connects the pole 2b.2 of the sub-segment 2b of the module segment 3a to the pole 2c.1 of the sub-segment 2c of the module segment 3b.
- the exemplary embodiment has a layout described as follows from a plan view.
- the module segments 3a and 3b are next to each other, with the module segment 3b being to the right of the module segment 3a.
- the sub-segments 2a to 2d of the module segments 3a and 3b are arranged parallel to one another, so that the solar cells 8 of the solar cell strings 1a to 1h arranged in series are also arranged parallel to one another, with the individual solar cells 8 of the solar cell strings 1a to 1h forming a solar cell grid which in Rows and columns can be divided.
- a solar module grid is superordinate to the solar cell grid. The arrangement shown in this example of the figure can be described using this grid.
- the solar module comprises two solar cell columns arranged on the left which belong to the partial segment 2a in the form of solar cell strings 1a and 1b. This is followed by another column containing the bypass connector 5a. The following columns are again two solar cell columns which belong to the partial segment 2b in the form of solar cell strings 1c and 1d. The following columns are again two solar cell columns which belong to the sub-segment 2c in the form of solar cell strings 1e and 1f. This is followed by another column containing the bypass connector 5b. The Subsequent columns are again two solar cell columns which belong to sub-segment 2d in the form of solar cell string 1g and 1h.
- the sub-segment connector 6a extends within the last row of the solar module grid over the first five columns, which includes the two solar cell columns of the sub-segment 2a, the column of the bypass connector 5a and the two solar cell columns of the sub-segment 2b.
- the sub-segment connector 6b extends within the last row of the solar module grid over the second five columns, which includes the two solar cell columns of the sub-segment 2c, those of the bypass connector 5b and the two solar cell columns of the sub-segment 2d.
- the segment connector 7 extends within the first row of the solar module grid over the middle four columns, which includes the two solar cell columns of the sub-segment 2b and the two solar cell columns of the sub-segment 2c.
- the second module segment 3b represents a translational displacement of the first module segment 3a with regard to the spatial arrangement of the solar cells 8 and the bypass elements 4.
- the displacement is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first module segment 3a.
- FIG. 1 The top edge in FIG. 1 is indicated schematically by the symbols "+" and the position at which the positive and negative contacts for connecting the solar cell module to an external circuit, in particular to other solar cell modules, are arranged on the back of the solar cell module. It is within the scope of the invention in the case of the exemplary embodiments shown in FIG. 1 and also in the other figures that the respective polarity of the contacts of the solar module is reversed in the case of a reverse solar cell directional arrangement.
- Figures 1 to 4 shown in Figure 2 show a module segment under various shading conditions and thus show the advantages of the embodiment shown in Figure 1.
- the shading of the shading Scenarios are shown schematically as a dark rectangle via V1 to V4.
- the respective current flow directions are indicated by the green arrows S1 to S7.
- Scenario 1 which is shown in Fig.1, is not subject to any shading.
- the bypass elements 4 are inactive.
- Scenario 2 which is shown in Fig.2, is subject to shading V1.
- This shading affects solar cells of sub-segment 2a.
- the solar cells that are shaded in this scenario are operated with a large negative voltage. This is the case when the current at the operating point of the cell string is above the short-circuit current of the shaded solar cell 8 .
- a current S3 flows via the bypass connector through the bypass element 4a, the negative voltage at the sub-segment 2a is limited by the bypass element 4a and thus also the maximum power loss at the shaded solar cell 8.
- Scenario 3 which is shown in Fig.3, is subject to shading V2.
- This shading affects solar cells of sub-segment 2b.
- the solar cells that are shaded in this scenario are operated with a large negative voltage. This is the case when the current at the operating point of the cell string is above the short-circuit current of the shaded solar cell 8 .
- a current S6 flows via the bypass connector through the bypass element 4b, the negative voltage at the sub-segment 2b is limited by the bypass element 4b and thus also the maximum power loss at the shaded solar cell 8.
- Scenario 4 which is shown in Fig.4, is subject to two shadings V3 and V4.
- This shading affects solar cells 8 of sub-segment 2a, solar cells 8 of sub-segment 2b.
- the solar cells that are shaded in this scenario are operated with a large negative voltage. This is the case when the current at the operating point of the respective cell string is above the short-circuit current of the shaded cell. In this case, a current flows S7 via the bypass element 4a and the bypass element 4b, the negative voltages on the sub-segment 2a and on the sub-segment 2b are limited by the bypass elements 4a and 4b and thus also the voltage on the shaded solar cells 8 of the sub-segments 4a and 4b.
- bypass elements 4a and 4b and the bypass elements 4c and 4d can each be arranged in a junction box.
- FIGS. 3 to 13 each show modified exemplary embodiments. To avoid repetition, only the main differences from the exemplary embodiment shown in FIG. 1 will be discussed below:
- the module segments 3a and 3b have a further module segment 3c.
- This further module segment 3c is electrically conductively connected to the module segment 3b via the segment connector 7b.
- the module segment 3c is arranged to the right of the module segment 3b.
- the module segment 3b and 3c represents a translational displacement of the first module segment 3a.
- the displacement is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first module segment 3a.
- the module segment 3a has two additional sub-segments 2c and 2d and two additional bypass elements 4c and 4d.
- the module segment 3b also has two additional sub-segments 2g and 2h and two additional bypass elements 4g and 4h.
- the bypass element 4c is connected in parallel to the sub-segment 2c.
- the bypass element 4d is connected in parallel to the sub-segment 2d.
- the bypass element 4g is connected in parallel to the sub-seg.
- the bypass element 4h is connected in parallel to the sub-segment 2h.
- the sub-segment 2c together with the bypass element 4c is connected in series with the sub-segment 2a of the module segment 3a.
- the sub-segment 2d together with the bypass element 4d is connected in series with the sub-segment 2b of the module segment 3a.
- the sub-segment 2g together with the bypass element 4g is connected in series with the sub-segment 2d.
- the sub-seg together with the bypass element 4g is connected in series with the sub-segment 2e of the module segment 3b.
- the sub-segment 2h together with the bypass element 4h is connected in series with the sub-segment 2f of the module segment 3b.
- bypass elements 4a, 4b, 4c and 4d are arranged centrally between the sub-segments 2a, 2b, 2c and 2d and the bypass elements 4e, 4f, 4g and 4h are arranged centrally between the sub-segments 2e, 2f, 2g and 2h.
- the module segment 3b represents a translatory displacement of the first module segment 3a.
- the displacement is perpendicular to the direction in which the solar cell strings 1a and 1b of the first module segment 3a extend.
- the sub-segments 2c and 2g represent a translatory displacement of the sub-segment 2a.
- the sub-segments 2d and 2h represent a translatory displacement of the sub-segment 2b.
- the exemplary embodiment shown in FIG. 5 shows an arrangement of three module group arrangements G2.1, G2.2 and G2.3, each of which corresponds to the module group arrangement G2 from FIG.
- the module group arrangement G2.3 is on the right next to two module group arrangements G2.1 and G2.2 ordered which represent embodiment 4. This results in the advantage that an expansion of the configuration shown in exemplary embodiment 4 can be implemented in a structurally simple manner by adding a module segment.
- the module group arrangements G2.2 and G2.3 represent a translational shift of the first module group arrangements G2.1.
- the shift is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first module group arrangements.
- the exemplary embodiment shown in FIG. 6 shows an arrangement of two module group arrangements G2.1, G2.2, each of which corresponds to the module group arrangement G2 from FIG.
- the module group arrangement G2.1 has two additional sub-segments 2i and 2j and two additional bypass elements 4i and 4j.
- the module group arrangement G2.2 has two additional sub-segments 2k and 2I and two additional bypass elements 4k and 4I.
- the bypass element 4i is connected in parallel to the sub-segment 2i.
- the bypass element 4j is connected in parallel to the sub-segment 2j.
- the bypass element 4k is connected in parallel to the sub-segment 2k.
- the bypass element 4I is connected in parallel to the sub-segment 2I.
- the sub-segment 2i together with the bypass element 4i is connected in series with the sub-segment 2c of the module group arrangements G2.1.
- the sub-segment 2j together with the bypass element 4j is connected in series with the sub-segment 2d of the module group arrangements G2.1.
- the sub-segment 2k together with the bypass element 4k is connected in series with the sub-segment 2j.
- the sub-segment 2k together with the bypass element 4k is connected in series with the sub-seg of the module group arrangements G2.2.
- the sub-segment 2I together with the bypass element 4I is connected in series with the sub-seg of the module group arrangements G2.2.
- the module group arrangements G2.2 represent a translatory shift of the module group arrangements G2.1.
- the shift is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first partial segment 2a.
- make the sub-segments 2i and 2k with regard to the spatial arrangement of the solar cells 8 represents a translatory displacement of the sub-segment 2a.
- the sub-segments 2j and 21 represent a translatory displacement of the sub-segment 2b.
- FIG. 7 shows an arrangement similar to that shown in FIG.
- the segment connector 7 and the bypass elements 4a, 4b, 4c and 4d are accommodated within a junction box 9.
- the bypass connectors 5a and 5b and the bypass elements 4a, 4b, 4c and 4d are in the middle column with two solar cell columns (from sub-segment 2c and sub-segment 2d) on the right and two solar cell columns (from sub-segment 2a and Sub-segment 2b) to the left.
- this has an advantage in terms of assembly technology, since the wiring is freely accessible via the junction box. It is thus possible to easily couple or decouple a complete module segment.
- FIG 8 shows a special embodiment of the embodiment from Figure 1.
- the bypass connectors 5a and 5b are each behind the solar cell level, insulated by an insulation layer 10a and 10b between the sub-segments 2a and 2b or the sub-segments 2c and 2c 2d attached and the bypass elements 4a, 4b, 4c and 4d are attached above the sub-segment connectors. Due to this arrangement tion, the solar cells 8 can be arranged in an advantageous uniform grid. Thus, all columns with solar cells 8 are occupied.
- FIG. 9 shows a special embodiment of the embodiment from Figure 1.
- the bypass connectors 5a and 5b are each behind the solar cell level, insulated by an insulating layer 10a and 10b, for example, under sub-segment 2b or sub-segment 2d and the bypass elements 4a, 4b, 4c and 4d are mounted above the sub-segment connectors. Due to this arrangement, the solar cells 8 can be arranged in an advantageous uniform grid. Thus, all columns with solar cells 8 are occupied.
- the embodiment shown in FIG. 10 has a first module segment 3a and a second module segment 3b, each of which is additionally expanded by a partial segment 2e and 2h and a third module segment 3c.
- This third module segment 3c is arranged between the first module segment 3a and the second module segment 3b.
- the first module segment 3a and the second module segment 3b each have a third bypass element 4c and 4h.
- the sub-segments 2a to 2h are arranged parallel to each other in four pairs of sub-segments (2c and 2a, 2d and 2b, 2g and 2e, 2h and 2f).
- the three bypass elements 4c, 4a and 4b of the first module segment 3a are arranged centrally between the first pair of sub-segments (2c and 2a) and the second pair of sub-segments (2d and 2b) of the module.
- the first bypass element 4d and second bypass element 4g of the third module segment 3c are arranged centrally between the first sub-segment 2d and the second sub-segment 2g of the third module segment 3c.
- the bypass elements 4e, 4f and 4h of the second module segment 3c are arranged centrally between the third pair of sub-segments (2g and 2e) and the fourth pair of sub-segments (2h and 2f) of the module.
- junction boxes in which the bypass elements 4 are accommodated (connection box 1: 4a, 4b and 4c, junction box 2: 4d and 4g, junction box 3: 4e, 4f and 4h) no longer have as many as 3 bypass elements.
- connection box 1 4a, 4b and 4c, junction box 2: 4d and 4g, junction box 3: 4e, 4f and 4h
- junction box 3 4e, 4f and 4h
- Another advantage of this embodiment is that compared to embodiment 4, one less bypass connector is used.
- the module segment 3b represents a translatory displacement of the first module segment 3a.
- the displacement is perpendicular to the direction in which the solar cell strings 1a and 1b of the first module segment 3a extend.
- the module segment 3c represents a translational displacement of the first module segment 3a.
- the displacement is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first module segment 3a, and the module segment 3c is also opposite to that Module segment 3a and the associated bypass elements 4d and 4g rotated by 180°, the arrangement of the solar cells 8 of the sub-segment 2d representing a translatory displacement of the sub-segment 2b and the arrangement of the solar cells 8 of the sub-segment 2g representing a translatory displacement of the sub-segment 2a.
- the sub-segment 2c represents a translatory displacement of the sub-segment 2a.
- the sub-segment 2h represents a translatory displacement of the sub-segment 2b.
- FIG. 11 shows a special embodiment of the embodiment from FIG.
- the module segment 3e as well as the module segment 3b in FIG. 10 is expanded by a further sub-segment 2I and a bypass element 4I.
- the bypass elements 4a, 4b and 4c of the first module segment 3a are arranged centrally between the sub-segments 2a, 2b and 2c.
- the bypass elements 4d and 4g of the third module segment 3c are arranged centrally between the sub-segments 2d and 2g.
- the bypass elements 4e and 4f of the second module segment 3b are arranged centrally between the sub-segments 2e and 2f.
- bypass elements 4h and 4k of the fourth module segment 3d are arranged centrally between the sub-segments 2h and 2k.
- the bypass elements 4i, 4j and 4I of the fifth module segment 3e are arranged centrally between the sub-segments 2i, 2j and 2I.
- the module segment 3b and 3e represent a translational displacement of the first module segment 3a with regard to the spatial arrangement of the solar cells 8 and the bypass elements 4.
- the displacement is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first module segment 3a.
- the module segment 3c and 3d represent a translatory displacement of the first module segment 3a with regard to the spatial arrangement of the solar cells 8 and the bypass elements 4.
- the displacement is perpendicular to the direction of extension of the solar cell strings 1a and 1b of the first module segment 3a, and the module segment 3c is also and 3d and the associated bypass elements 4d and 4g and 4h and 4k rotated by 180° in relation to the module segment 3a
- the arrangement of the solar cells 8 of the sub-segment 2d and 2h representing a translatory displacement of the sub-segment 2b
- the arrangement of the solar cells 8 of the sub-segment 2g and 2k represents a translational displacement of the sub-segment 2a.
- the sub-segment 2c represents a translatory displacement of the sub-segment 2a.
- the sub-segment 2I represents a translatory displacement of the sub-segment 2b.
- the module arrangements described above are also suitable for constructing large solar cell modules with a large number of solar cells.
- FIG. 12 shows a schematic section of the structure of a single-junction solar cell which was used in the previous exemplary embodiments.
- the solar cell shown has two contacts 11a and 11b.
- FIG. 13 shows a schematic section of the structure of a dual-junction solar cell which can be used optionally.
- the solar cell shown has two separate cell layers, on the one hand the top cell layer 12a and the bottom cell layer 12b. In addition to the actual solar cell layer 12a and 12b, the solar cell has two contacts 11a and 11b.
- FIG. 14 shows a schematic section of the structure of a 4-terminal dual-junction solar cell which can be used optionally and is specifically shown in embodiment 15.
- the solar cell shown has two cell layers isolated from one another, on the one hand the top cell layer 12a and the bottom cell layer 12b. In addition to the actual solar cell layer 12a and 12b, the solar cell has four contacts 11a, 11b, 11c and 11d.
- FIG. 15 shows an exemplary embodiment which is used when using 4 terminal dual-junction solar cells.
- the solar cells 8 and bypass elements 4 of the top cell level are arranged and connected according to exemplary embodiment 1.
- the solar cells 8 of the bottom cell level 12b are arranged and connected in the same way as the top cell level 12a according to exemplary embodiment 1. These two levels and thus the modules are arranged one above the other and form a module stack.
- the solar cell module has additional module segments.
- the described configuration of the module segments is repeated several times.
- FIG. 1 Another exemplary embodiment is shown in FIG.
- This exemplary embodiment differs from the exemplary embodiment from FIG. 1 in that the first module segment 3a is mirrored along a mirror plane A and this mirrored module segment 3a′ is connected in parallel to the module segment 3a by means of a first segment connector 7a and a second segment connector 7b.
- the segment connector 7a and the segment connector 7b have two poles.
- the first pole of the first segment connector 7a.1 is electrically conductively connected to the first pole of the first bypass element 4a.1 of the first module segment 3a and the first pole of the first sub-segment 2a.1 of the first module segment 3a.
- the second pole of the first segment connector 7a.2 is electrically conductively connected to the first pole of the mirrored first bypass element 4a'.1 of the mirrored first module segment 3a' and the first pole of the mirrored first partial segment 2a'.1 of the first mirrored module segment 3a'.
- the first pole of the second segment connector 7b.1 is electrically conductively connected to the second pole of the second bypass element 4b.2 of the first module segment 3a and the second pole of the second sub-segment 2b.2 of the first module segment 3a.
- the second pole of the second segment connector 7b.2 is electrically conductively connected to the second pole of the mirrored second bypass element 4b'.2 of the mirrored first module segment 3a' and the second pole of the mirrored second partial segment 2b'.2 of the first mirrored module segment 3a'.
- Sub-segments 2a and 2b are electrically conductively connected in series via sub-segment connector 6a and sub-segments 2a' and 2b' are electrically conductively connected in series via sub-segment connector 6a', with these sub-segments (2a and 2b, 2a' and 2b') connected in series are connected in parallel to one another via the segment connectors 7a and 7b.
- the solar cell module shown in FIG. 16 has a central mirror plane S, which is perpendicular to the plane of the drawing and thus perpendicular to the solar cell module (the areal extension of the solar cell module) and runs along the dashed line S. This represents a mirror plane with regard to the spatial arrangement of the solar cells 8, solar cell strings 1 and bypass elements 4 of the solar cell module.
Landscapes
- Photovoltaic Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22830437.4A EP4441796A1 (de) | 2021-12-03 | 2022-12-02 | Solarzellenmodul |
CN202280080230.6A CN118382937A (zh) | 2021-12-03 | 2022-12-02 | 太阳能电池模块 |
KR1020247021439A KR20240113565A (ko) | 2021-12-03 | 2022-12-02 | 태양 전지 모듈 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021131977.3A DE102021131977A1 (de) | 2021-12-03 | 2021-12-03 | Solarzellenmodul |
DE102021131977.3 | 2021-12-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2023099771A1 true WO2023099771A1 (de) | 2023-06-08 |
Family
ID=84627580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/084294 WO2023099771A1 (de) | 2021-12-03 | 2022-12-02 | Solarzellenmodul |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP4441796A1 (de) |
KR (1) | KR20240113565A (de) |
CN (1) | CN118382937A (de) |
DE (1) | DE102021131977A1 (de) |
WO (1) | WO2023099771A1 (de) |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005012213A1 (de) | 2005-01-26 | 2006-08-03 | G. Spelsberg Gmbh & Co. Kg | Anschlußschaltung |
DE102009060604A1 (de) | 2009-12-23 | 2011-06-30 | Energetica Holding Gmbh | Solar-Modul mit einer Leiterplatte und Verfahren zur Herstellung und Anwendung |
DE102011055754A1 (de) * | 2011-06-01 | 2012-12-06 | Schott Solar Ag | Solarzellenmodul und Verfahren zum Verschalten von Solarzellen |
WO2015001413A1 (en) | 2013-07-05 | 2015-01-08 | Rec Solar Pte. Ltd. | Solar cell assembly |
US20150349176A1 (en) * | 2014-05-27 | 2015-12-03 | Cogenra Solar, Inc. | High voltage solar panel |
US20150349701A1 (en) * | 2014-05-27 | 2015-12-03 | Cogenra Solar, Inc. | Shingled solar cell module |
US20160226438A1 (en) * | 2015-01-29 | 2016-08-04 | Solaria Corporation | Solar module with diode device for shading |
US20160226439A1 (en) | 2015-01-29 | 2016-08-04 | Solaria Corporation | Solar module with diode device for shading |
EP3783670A1 (de) * | 2018-10-31 | 2021-02-24 | Chint Solar (Zhejiang) Co., Ltd. | Geschindeltes photovoltaisches modul mit doppelenergieerzeugungseinheiten |
DE102020128080A1 (de) | 2020-10-26 | 2022-04-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Solarzellenmodul |
-
2021
- 2021-12-03 DE DE102021131977.3A patent/DE102021131977A1/de active Pending
-
2022
- 2022-12-02 CN CN202280080230.6A patent/CN118382937A/zh active Pending
- 2022-12-02 WO PCT/EP2022/084294 patent/WO2023099771A1/de active Application Filing
- 2022-12-02 KR KR1020247021439A patent/KR20240113565A/ko unknown
- 2022-12-02 EP EP22830437.4A patent/EP4441796A1/de active Pending
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005012213A1 (de) | 2005-01-26 | 2006-08-03 | G. Spelsberg Gmbh & Co. Kg | Anschlußschaltung |
DE102009060604A1 (de) | 2009-12-23 | 2011-06-30 | Energetica Holding Gmbh | Solar-Modul mit einer Leiterplatte und Verfahren zur Herstellung und Anwendung |
DE102011055754A1 (de) * | 2011-06-01 | 2012-12-06 | Schott Solar Ag | Solarzellenmodul und Verfahren zum Verschalten von Solarzellen |
WO2015001413A1 (en) | 2013-07-05 | 2015-01-08 | Rec Solar Pte. Ltd. | Solar cell assembly |
US20150349176A1 (en) * | 2014-05-27 | 2015-12-03 | Cogenra Solar, Inc. | High voltage solar panel |
US20150349701A1 (en) * | 2014-05-27 | 2015-12-03 | Cogenra Solar, Inc. | Shingled solar cell module |
US20160226438A1 (en) * | 2015-01-29 | 2016-08-04 | Solaria Corporation | Solar module with diode device for shading |
US20160226439A1 (en) | 2015-01-29 | 2016-08-04 | Solaria Corporation | Solar module with diode device for shading |
EP3783670A1 (de) * | 2018-10-31 | 2021-02-24 | Chint Solar (Zhejiang) Co., Ltd. | Geschindeltes photovoltaisches modul mit doppelenergieerzeugungseinheiten |
DE102020128080A1 (de) | 2020-10-26 | 2022-04-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung eingetragener Verein | Solarzellenmodul |
Also Published As
Publication number | Publication date |
---|---|
KR20240113565A (ko) | 2024-07-22 |
CN118382937A (zh) | 2024-07-23 |
DE102021131977A1 (de) | 2023-06-07 |
EP4441796A1 (de) | 2024-10-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102012207168B4 (de) | Photovoltaikmodul mit Bypass-Dioden und in Reihe geschalteten Stringanordnungen parallel geschalteter Strings aus Solarzellen | |
DE102008033632B4 (de) | Solarzelle und Solarzellenmodul | |
DE112016003768T5 (de) | Sonnenkollektor | |
DE102007035883A1 (de) | Rückkontaktsolarzelle und Solarmodul mit reduzierten Serienwiderständen | |
EP2533303A2 (de) | Solarmodul und Photovoltaik-Anlage | |
DE4017933A1 (de) | Solarzellenelement mit einem deckglas | |
EP2577738B1 (de) | Dünnschichtsolarmodul und herstellungsverfahren hierfür | |
CH685272A5 (de) | Solarzellen-Anlage. | |
EP4233098B1 (de) | Solarzellenmodul | |
DE102020128080B4 (de) | Solarzellenmodul | |
EP2475014A2 (de) | Photovoltaikmodul mit einlaminierter Bypassdiode | |
EP4441796A1 (de) | Solarzellenmodul | |
DE202023101532U1 (de) | Photovoltaikmodul | |
DE102008033189B4 (de) | Interdigitale Kontaktstreifenanordnung für Rückseitenkontakt-Solarzelle; | |
DE102022110490B4 (de) | Solarzellenmodul | |
DE102021112969A1 (de) | Solarzellenmodul | |
DE202015106374U1 (de) | Photovoltaikmodul | |
DE202021004282U1 (de) | Photovoltaikmodul | |
DE102019122222A1 (de) | Photovoltaische Solarzelle und Solarzellenmodul | |
EP4113632A1 (de) | Photovoltaikmodul | |
DE102022124501A1 (de) | Solarmodul mit 3-Terminal-Tandem-Solarzellen | |
DE102020203510A1 (de) | Dünnschichtsolarmodul und Herstellungsverfahren | |
DE102021112981A1 (de) | Solarzellenmodul | |
DE202023104713U1 (de) | Solarmodul | |
DE102021114906A1 (de) | Solarmodul mit optimierter verschaltung sowie verfahren zum fertigen desselben |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22830437 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18715833 Country of ref document: US Ref document number: 202280080230.6 Country of ref document: CN |
|
ENP | Entry into the national phase |
Ref document number: 20247021439 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202447049283 Country of ref document: IN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022830437 Country of ref document: EP Effective date: 20240703 |