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DE102009013276A1 - Low-light activation method for complete grooving of flat roofs for installation of photovoltaic generator modules, involves disconnecting affected cells during partial shade, by photovoltaic generator modules - Google Patents

Low-light activation method for complete grooving of flat roofs for installation of photovoltaic generator modules, involves disconnecting affected cells during partial shade, by photovoltaic generator modules Download PDF

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Publication number
DE102009013276A1
DE102009013276A1 DE102009013276A DE102009013276A DE102009013276A1 DE 102009013276 A1 DE102009013276 A1 DE 102009013276A1 DE 102009013276 A DE102009013276 A DE 102009013276A DE 102009013276 A DE102009013276 A DE 102009013276A DE 102009013276 A1 DE102009013276 A1 DE 102009013276A1
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Prior art keywords
photovoltaic generator
generator modules
modules
installation
activation method
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EULEKTRA GmbH
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EULEKTRA GmbH
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    • 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
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • 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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  • Photovoltaic Devices (AREA)

Abstract

Oberbegriff: Restlichaktivierungsverfahren für Vollausnutzung von Flachdächern für Aufstellung von Photovoltaik-Generator-Modulen

Kennzeichnender Teil: dadurch gekennzeichnet,
dass die Photovoltaik-Generator-Module bei Teilschattierung nur die betroffenen Zellen abschalten und dadurch kein Engpass für die im PV-Modulverbund (String) fließenden Strom zu verursachen.

Stand der Technik: Es ist uns bekannt, dass es PV-Module gibt, die Bypassdioden haben. Es gibt jedoch kein Photovoltaik-Generator-Modul, dass pro Zelle mit Schottky-Dioden beschaltet ist.

Problem: Der Erfindung liegt das Problem zu Grunde, ein schattierungsunabhängiges Photovoltaik-Generator-Modul zu schaffen, dass auch Problembereiche wie Schattierungen von Nachbarhäusern, Freileitungen, Sonnenauf- und Sonnenuntergang bewältigen kann.General term: Residual activation method for full utilization of flat roofs for installation of photovoltaic generator modules

Characteristic part: characterized in that
that with partial shading the photovoltaic generator modules only switch off the affected cells and thereby cause no bottleneck for the current flowing in the PV module network (string).

Background Art: It is known that there are PV modules that have bypass diodes. However, there is no photovoltaic generator module that is connected per cell with Schottky diodes.

Problem: The invention is based on the problem to provide a shading-independent photovoltaic generator module that can also handle problem areas such as shades of neighboring houses, overhead lines, sunrise and sunset.

Figure 00000001
Figure 00000001

Description

Es handelt sich um eine Diodenbeschichtung des Photovoltaikmoduls, das durch seine Beschaltung schattierungsabhängig und bei Sonnenauf- und Sonnenuntergang effektiver arbeitet.It is a diode coating of the photovoltaic module, the shading-dependent by its wiring and at sunrise and sunset works more effectively.

Bei diesem Verfahren werden die Einzelzellen des Photovoltaikmoduls mit Schottky-Dioden bestückt. Dabei ist die Durchbruchsspannung der Schottky-Diode in Durchlassrichtung so zu bestimmen, dass dieser kleiner ist als die Zellengeneratorspannung.at This process is the single cells of the photovoltaic module equipped with Schottky diodes. The breakdown voltage of the Schottky diode is in the forward direction to be determined so that it is smaller than the cell generator voltage.

Die Schottky-Dioden werden antiparallel zu den Generatorzellen gesetzt, so dass ein Hot-Spot-Effekt der Generatorzellen wie bei Schattierungen durch Fremdkörper oder insbesondere das morgendliche „aufwecken” der Generatorzellen nicht mehr entstehen kann.The Schottky diodes are placed antiparallel to the generator cells, making a hot spot effect the generator cells as in shading by foreign bodies or especially the morning "wake up" of the generator cells can not arise anymore.

Mit diesem Verfahren ist eine kostenintensive, schattierungsabhängige Planung der Photovoltaikanlage incl. Stringplanung nach Schattenverlauf überflüssig.With This method is a cost intensive, shading dependent planning the photovoltaic system including string planning after shadows superfluous.

Im Falle der Schattierung werden nur die betroffenen Zellen durch die Schottky-Dioden kurzgeschlossen, so dass der im Photovoltaik Modulverbund (String) fließender Strom nicht beeinträchtigt wird indem Sie über die kurzgeschlossene Schottky-Diode umgeleitet wird.in the Case of shading, only the affected cells through the Schottky diodes shorted, so that in the photovoltaic module composite (String) more fluent Electricity is not affected by over the shorted Schottky diode is redirected.

Dieses bewirkt im Insgesamten bei nichtvermeidbar schattierten Anlagen wie z. B. durch Bäume, Nachbarhäuser, Freileitungen etc. bis zu 60% mehr Ertrag gegenüber herkömmlichen Photovoltaik Modulen.This causes in the case of unavoidably shaded installations such as B. by trees, neighboring houses, overhead lines etc. up to 60% more yield compared to conventional photovoltaic modules.

Claims (1)

Oberbegriff: Restlichaktivierungsverfahren für Vollausnutzung von Flachdächern für Aufstellung von Photovoltaik-Generator-Modulen Kennzeichnender Teil: dadurch gekennzeichnet, dass die Photovoltaik-Generator-Module bei Teilschattierung nur die betroffenen Zellen abschalten und dadurch kein Engpass für die im PV-Modulverbund (String) fließenden Strom zu verursachen. Stand der Technik: Es ist uns bekannt, dass es PV-Module gibt, die Bypassdioden haben. Es gibt jedoch kein Photovoltaik-Generator-Modul, dass pro Zelle mit Schottky-Dioden beschaltet ist. Problem: Der Erfindung liegt das Problem zu Grunde, ein schattierungsunabhängiges Photovoltaik-Generator-Modul zu schaffen, dass auch Problembereiche wie Schattierungen von Nachbarhäusern, Freileitungen, Sonnenauf- und Sonnenuntergang bewältigen kann.General term: Remaining activation method for full utilization of flat roofs for installation of photovoltaic generator modules Characteristic part: characterized in that the photovoltaic generator modules with partial shading switch off only the affected cells and thus no bottleneck for the current in the PV module network (string) current to cause. Background Art: It is known that there are PV modules that have bypass diodes. However, there is no photovoltaic generator module that is connected per cell with Schottky diodes. Problem: The invention is based on the problem to provide a shading-independent photovoltaic generator module that can also handle problem areas such as shades of neighboring houses, overhead lines, sunrise and sunset.
DE102009013276A 2009-05-12 2009-05-12 Low-light activation method for complete grooving of flat roofs for installation of photovoltaic generator modules, involves disconnecting affected cells during partial shade, by photovoltaic generator modules Ceased DE102009013276A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11283397B2 (en) 2016-08-29 2022-03-22 SacTec Solar Inc. Rapidly deploying transportable solar panel systems and methods of using same

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912539A (en) * 1972-02-03 1975-10-14 Ferranti Ltd Solar cells
DE3005560A1 (en) * 1980-02-14 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Series circuit of solar cells - has diodes coupled across each solar cell to maintain operation if cell fails
US4481378A (en) * 1982-07-30 1984-11-06 Motorola, Inc. Protected photovoltaic module
DE4136827A1 (en) * 1990-11-09 1992-05-14 Sharp Kk SOLAR CELL WITH BYPASS DIODE
US6103970A (en) * 1998-08-20 2000-08-15 Tecstar Power Systems, Inc. Solar cell having a front-mounted bypass diode
DE10125036A1 (en) * 2000-05-24 2002-02-14 Sharp Kk Solar cell used in photovoltaic power generation, includes bypass function region which forms bypass circuit using depletion layer formed inside substrate by reverse voltage
DE102004044061A1 (en) * 2004-09-11 2006-04-20 Rwe Space Solar Power Gmbh Solar cell arrangement and method for interconnecting a solar cell string
DE102004055225A1 (en) * 2004-11-16 2006-06-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Arrangement with solar cell and integrated bypass diode

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912539A (en) * 1972-02-03 1975-10-14 Ferranti Ltd Solar cells
DE3005560A1 (en) * 1980-02-14 1981-08-20 Siemens AG, 1000 Berlin und 8000 München Series circuit of solar cells - has diodes coupled across each solar cell to maintain operation if cell fails
US4481378A (en) * 1982-07-30 1984-11-06 Motorola, Inc. Protected photovoltaic module
DE4136827A1 (en) * 1990-11-09 1992-05-14 Sharp Kk SOLAR CELL WITH BYPASS DIODE
US6103970A (en) * 1998-08-20 2000-08-15 Tecstar Power Systems, Inc. Solar cell having a front-mounted bypass diode
DE10125036A1 (en) * 2000-05-24 2002-02-14 Sharp Kk Solar cell used in photovoltaic power generation, includes bypass function region which forms bypass circuit using depletion layer formed inside substrate by reverse voltage
DE102004044061A1 (en) * 2004-09-11 2006-04-20 Rwe Space Solar Power Gmbh Solar cell arrangement and method for interconnecting a solar cell string
DE102004055225A1 (en) * 2004-11-16 2006-06-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Arrangement with solar cell and integrated bypass diode

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11283397B2 (en) 2016-08-29 2022-03-22 SacTec Solar Inc. Rapidly deploying transportable solar panel systems and methods of using same

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Effective date: 20110303