DE10123262B4 - Device for the uniform illumination of photovoltaic cells - Google Patents
Device for the uniform illumination of photovoltaic cells Download PDFInfo
- Publication number
- DE10123262B4 DE10123262B4 DE10123262A DE10123262A DE10123262B4 DE 10123262 B4 DE10123262 B4 DE 10123262B4 DE 10123262 A DE10123262 A DE 10123262A DE 10123262 A DE10123262 A DE 10123262A DE 10123262 B4 DE10123262 B4 DE 10123262B4
- Authority
- DE
- Germany
- Prior art keywords
- transparent plate
- photovoltaic
- photovoltaic cells
- uniform illumination
- scattering layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000005286 illumination Methods 0.000 title claims abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000011241 protective layer Substances 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004313 glare Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000036561 sun exposure Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0547—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the reflecting type, e.g. parabolic mirrors, concentrators using total internal reflection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
- H01L31/054—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means
- H01L31/0543—Optical elements directly associated or integrated with the PV cell, e.g. light-reflecting means or light-concentrating means comprising light concentrating means of the refractive type, e.g. lenses
-
- 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
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- 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
- Y02E10/52—PV systems with concentrators
Abstract
Vorrichtung zur gleichmäßigen Ausleuchtung von Photovoltaikzellen in einem Photovoltaikmodul, bestehend aus einer für die empfindliche Wellenlänge der Photovoltaikzellen (1) transparenten Platte (5) mit einer streuenden Schicht (6), wobei die transparente Platte (5) mit der streuenden Schicht (6) mit einem solchen Abstand zum Photovoltaikmodul angeordnet ist, dass eine optische Überstrahlung der Photovoltaikzellen (1) vorhanden ist, und an der transparenten Platte (5) verspiegelte Flächen (9,10) so angebracht sind, dass Licht (4) in die Seitenflächen der transparenten Platte (5) eingekoppelt wird, wobei die verspiegelten Flächen eben (9) oder konkav (10) sind und etwa 45° gegen die Seitenflächen der transparenten Platte (5) geneigt sind.Device for uniform illumination of photovoltaic cells in a photovoltaic module, consisting of a plate (5) with a scattering layer (6) that is transparent for the sensitive wavelength of the photovoltaic cells (1), the transparent plate (5) with the scattering layer (6) such a distance to the photovoltaic module is arranged that there is an optical overexposure of the photovoltaic cells (1) and mirrored surfaces (9, 10) are attached to the transparent plate (5) in such a way that light (4) enters the side surfaces of the transparent plate (5) is coupled in, the mirrored surfaces being flat (9) or concave (10) and being inclined at approximately 45 ° to the side surfaces of the transparent plate (5).
Description
Die Erfindung betrifft eine Vorrichtung zur gleichmäßigen Ausleuchtung von Photovoltaikzellen. Diese Vorrichtung kann bei der Herstellung von Photovoltaikelementen bereits an diese montiert werden, sie kann aber auch nachträglich auf bereits installierte Photovoltaikflächen aufgebracht werden.The invention relates to a device for uniform illumination of photovoltaic cells. This device can be used in manufacturing of photovoltaic elements are already mounted on them can also be added later be applied to already installed photovoltaic areas.
Photovoltaikelemente zur umweltfreundlichen Gewinnung elektrischer Energie haben sich heute, insbesondere für kleine Verbraucher, in der Praxis durchgesetzt. Das große Problem solcher Anlagen besteht vor allem in der in unseren Breiten verhältnismäßig geringen Sonneneinstrahlung. Es werden deshalb vielfältige Anstrengungen unternommen, die Sonneneinstrahlung und ihre Einstrahldauer zu erhöhen.Photovoltaic elements for environmentally friendly Extraction of electrical energy today, especially for small ones Consumers, enforced in practice. The big problem of such systems consists mainly in the relatively low solar radiation in our latitudes. So there will be many Efforts have been made to determine the sun exposure and its exposure time to increase.
In der
Dem gleichen Ziel dient die Lösung der
Bei den bekannten Lösungen bleibt der Nachteil, dass lokale Verschmutzungen, Abdeckungen und Abschattungen den Wirkungsgrad der Photovoltaikzellen wesentlich beeinflussen.The known solutions remain the disadvantage that local pollution, covers and shading significantly affect the efficiency of the photovoltaic cells.
Dieser Nachteil im Stand der Technik
kann verringert werden, wenn das Photovoltaikelement mit einer streuenden
Schicht abgedeckt wird. In der
Die hier genannten Lösungsansätze zeigen Möglichkeiten auf, wie die Ausleuchtung von Photovoltaikelementen verbessert werden kann, wenn diese durch Wolken, Verunreinigungen usw. teilweise abgedeckt werden.The approaches mentioned here show possibilities on how the illumination of photovoltaic elements can be improved may be partially covered by clouds, contaminants, etc. become.
Aufgabe der vorliegenden Erfindung ist es, eine Vorrichtung vorzuschlagen, die die Ausleuchtung von Photovoltaikzellen verbessert.Object of the present invention is to propose a device that the illumination of Improved photovoltaic cells.
Die Aufgabe wird durch die anhängenden Patentansprüche gelöst. Die Vorrichtung zur gleichmäßigen Ausleuchtung von Photovoltaikzellen in einem Photovoltaikmodul besteht aus einer für die empfindliche Wellenlänge der Photovoltaikzellen transparenten Platte mit einer streuenden Schicht, wobei die transparente Platte mit der streuenden Schicht mit einem solchen Abstand zum Photovoltaikmodul angeordnet ist, dass eine optische Überstrahlung der Photovoltaikzellen vorhanden ist, und an der transparenten Platte verspiegelte Flächen so angebracht sind, dass Licht in die Seitenflächen der transparenten Platte eingekoppelt wird, wobei die verspiegelten Flächen eben oder konkav sind und etwa 45° gegen die Seitenflächen der transparenten Platte geneigt sind.The object is solved by the appended claims. The Device for uniform illumination of photovoltaic cells in a photovoltaic module consists of one for the sensitive wavelength of the photovoltaic cell transparent plate with a scattering Layer, the transparent plate with the scattering layer is arranged at such a distance from the photovoltaic module, that optical glare of the photovoltaic cells is present, and on the transparent plate mirrored surfaces are attached so that light enters the side surfaces of the transparent plate is coupled in, the mirrored surfaces are flat or concave and about 45 ° against the side faces the transparent plate are inclined.
An der transparenten Platte sind verspiegelte Flächen so angebracht, dass Licht in die Seitenflächen der transparenten Platte eingekoppelt wird. Die verspiegelten Flächen können entweder eben sein und etwa 45° gegen die Seitenflächen geneigt sein. Die verspiegelten Flächen können auch konkav sein und etwa 45° gegen die Seitenflächen der transparenten Platte geneigt sein. Sie können in die transparente Platte integriert werden oder auf einem getrennten elastischen Band angebracht sein, das jeweils an die Seitenflächen der transparenten Platte angelegt wird, so dass Licht in die transparente Platte eingekoppelt wird.Are on the transparent plate mirrored surfaces attached so that light in the side surfaces of the transparent plate is coupled. The mirrored surfaces can either be flat and about 45 ° against the side faces be inclined. The mirrored surfaces can also be concave and about 45 ° against the side faces the transparent plate. You can in the transparent plate be integrated or attached on a separate elastic band be applied to the side surfaces of the transparent plate is so that light is coupled into the transparent plate.
Mit dieser Vorrichtung oder diesem neuartigen Photovoltaikzelle können mehrere vorteilhafte Effekte erzielt werden. Die streuende Schicht auf der transparenten Platte aus Glas oder einem anderen Material, das für die Wellenlängen transparent ist, auf die die Photovoltaikelemente empfindlich sind, sorgt durch die Mehrfachreflexionen für eine weitestgehend gleichmäßige Ausleuchtung der empfindlichen Fläche der Photovoltaikelemente. Auf die Fläche fallende Blätter, Vogelexkremente oder dergleichen oder leichte Abschattungen durch Mauervorsprünge, Schornsteine Wolken etc. beeinträchtigen nur wenig die Ausleuchtung der Gesamtfläche, so dass der Leistungsabfall in Grenzen gehalten werden kann.With this device or this novel photovoltaic cell can several beneficial effects can be achieved. The scattering layer on the transparent plate made of glass or another material, that for the wavelengths is transparent to which the photovoltaic elements are sensitive, ensures that the illumination is largely uniform due to the multiple reflections the sensitive area of the photovoltaic elements. Leaves falling on the surface, bird excrement or the like or slight shadowing from wall projections, chimneys Affect clouds etc. only a little the illumination of the total area, so the drop in performance can be kept within limits.
Dieser Effekt wird dadurch verstärkt, dass an die Ränder der transparenten Platte die reflektierende Fläche angeordnet wird, die zusätzliches Sonnenlicht in die transparente Platte lenkt.This effect is reinforced by the fact that to the edges the reflective surface is arranged on the transparent plate, the additional Directs sunlight into the transparent plate.
Beispielmessungen haben ergeben, dass bei einer geringen Teilabdeckung, wo übliche Photovoltaikmodule bereits ca. 50% am Wirkungsgrad einbüßen, der Leistungsabfall in den Grenzen bis etwa 15% gehalten werden kann. Dieser Leistungsabfall kann mit der erfinderischen Lösung weiter verringert werden, wenn eine geeignete Serien-Parallel-Schaltung der einzelnen Photovoltaikelemente vorgenommen wird, so dass eine leichte Abschattung einer Photovoltaikzelle den Innenwiderstand der Anlage kaum oder nur geringfügig beeinflusst.Example measurements have shown that with a low partial coverage, where conventional photovoltaic modules already lose approx. 50% in efficiency, the power drop can be kept within the limits up to approx. 15%. This drop in performance can be further reduced with the inventive solution if a suitable series-parallel connection of the individual photovoltaic elements is carried out is so that a slight shade of a photovoltaic cell has little or no influence on the internal resistance of the system.
Zu den Vorteilen kommt ein weiterer Effekt, der die Gestaltungsmöglichkeiten derartigen Photovoltaikmodule betrifft. Schon allein durch die reflektierenden Bänder, die um jedes Photovoltaikelement oder um bestimmte Gruppen von Photovoltaikelementen gelegt werden, kann eine von der bekannten technischen Form abweichende Gestaltung erreicht werden. Die transparenten Platten können z.B. farbig gestaltet werden, solange die für die Photovoltaikanlage benötigten Wellenlängen des Sonnenlichtes nicht wesentlich abgeschirmt werden.There is another advantage Effect of the design options relates to such photovoltaic modules. Simply because of the reflective bands those around each photovoltaic element or certain groups of photovoltaic elements can be placed, a different from the known technical form Design can be achieved. The transparent plates can e.g. be designed in color, as long as the wavelengths required for the photovoltaic system Sunlight are not significantly shielded.
Letztendlich können die Photovoltaikzellen auch an senkrechten Wänden, Mauern und dergleichen angeordnet werden.Ultimately, the photovoltaic cells can too on vertical walls, Walls and the like can be arranged.
Die Erfindung soll nachfolgend anhand einiger Ausführungsbeispiele erläutert werden. In den einzelnen Zeichnungen sind gleiche oder ähnlich Teile mit denselben Bezugszahlen versehen.The invention is based on the following some embodiments explained become. Parts are the same or similar in the individual drawings provided with the same reference numbers.
In
In
Es sind einige Ausführungsbeispiel der vorliegenden Erfindung prinzipiell dargestellt. Weitere Ausführungsbeispiel ergeben sich durch vielfältige Kombinationen der Merkmale der Erfindung, die durch Kenntnis der Lehre vom Fachmann leicht nachvollzogen werden können.There are some embodiments presented in principle of the present invention. Another embodiment result from various combinations the features of the invention, based on knowledge of the teaching of the skilled person can be easily understood.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123262A DE10123262B4 (en) | 2001-05-12 | 2001-05-12 | Device for the uniform illumination of photovoltaic cells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10123262A DE10123262B4 (en) | 2001-05-12 | 2001-05-12 | Device for the uniform illumination of photovoltaic cells |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10123262A1 DE10123262A1 (en) | 2002-11-28 |
DE10123262B4 true DE10123262B4 (en) | 2004-07-01 |
Family
ID=7684633
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE10123262A Expired - Fee Related DE10123262B4 (en) | 2001-05-12 | 2001-05-12 | Device for the uniform illumination of photovoltaic cells |
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DE (1) | DE10123262B4 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006035965A1 (en) * | 2006-08-02 | 2008-02-07 | Kay Itzigehl | Solar cell arrangement, has sandwich structures with inner solar cells and transparent mediums, where light is received from direction of surface normal of front side of outer solar cells and is guided into transparent mediums by mirror |
NL2019628B1 (en) * | 2017-09-26 | 2019-04-03 | Tno | Photovoltaic module having scattering patterns |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971672A (en) * | 1975-02-03 | 1976-07-27 | D. H. Baldwin Company | Light diffuser for photovoltaic cell |
JPS60148172A (en) * | 1984-01-12 | 1985-08-05 | Seikosha Co Ltd | Colored solar cell |
DE3916124A1 (en) * | 1989-05-18 | 1990-11-22 | Telefunken Systemtechnik | Frameless solar cell module - with inclined rim extension of support bracket reflecting solar radiation on cell edges |
DE4211524A1 (en) * | 1991-12-19 | 1993-07-08 | Wenzel Joachim | Solar energy absorber for roof mounting - has hinged mirrors to increase amount of energy absorbed |
EP0559141A2 (en) * | 1992-03-03 | 1993-09-08 | Canon Kabushiki Kaisha | Photovoltaic device |
JPH06204541A (en) * | 1992-12-28 | 1994-07-22 | Canon Inc | Photovoltaic device |
WO1995015582A1 (en) * | 1993-12-02 | 1995-06-08 | R & S Renewable Energy Systems B.V. | A photovoltaic solar panel and a method for producing same |
DE9421390U1 (en) * | 1994-12-24 | 1995-10-05 | Zsw | Solar cell structure |
DE19601238A1 (en) * | 1996-01-15 | 1997-07-24 | Miladin Dr Lazarov | Colored radiation energy converter, process for its production and its use |
DE19901273A1 (en) * | 1999-01-15 | 2000-07-27 | Webasto Vehicle Sys Int Gmbh | Solar generator for cars with solar cells covered by protection layer on side facing light impingement |
-
2001
- 2001-05-12 DE DE10123262A patent/DE10123262B4/en not_active Expired - Fee Related
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3971672A (en) * | 1975-02-03 | 1976-07-27 | D. H. Baldwin Company | Light diffuser for photovoltaic cell |
JPS60148172A (en) * | 1984-01-12 | 1985-08-05 | Seikosha Co Ltd | Colored solar cell |
DE3916124A1 (en) * | 1989-05-18 | 1990-11-22 | Telefunken Systemtechnik | Frameless solar cell module - with inclined rim extension of support bracket reflecting solar radiation on cell edges |
DE4211524A1 (en) * | 1991-12-19 | 1993-07-08 | Wenzel Joachim | Solar energy absorber for roof mounting - has hinged mirrors to increase amount of energy absorbed |
EP0559141A2 (en) * | 1992-03-03 | 1993-09-08 | Canon Kabushiki Kaisha | Photovoltaic device |
JPH06204541A (en) * | 1992-12-28 | 1994-07-22 | Canon Inc | Photovoltaic device |
WO1995015582A1 (en) * | 1993-12-02 | 1995-06-08 | R & S Renewable Energy Systems B.V. | A photovoltaic solar panel and a method for producing same |
DE9421390U1 (en) * | 1994-12-24 | 1995-10-05 | Zsw | Solar cell structure |
DE19601238A1 (en) * | 1996-01-15 | 1997-07-24 | Miladin Dr Lazarov | Colored radiation energy converter, process for its production and its use |
DE19901273A1 (en) * | 1999-01-15 | 2000-07-27 | Webasto Vehicle Sys Int Gmbh | Solar generator for cars with solar cells covered by protection layer on side facing light impingement |
Also Published As
Publication number | Publication date |
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DE10123262A1 (en) | 2002-11-28 |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |