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WO2007095892A2 - Panneaux solaires concentrateurs dotés de cellules à mince couche - Google Patents

Panneaux solaires concentrateurs dotés de cellules à mince couche Download PDF

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Publication number
WO2007095892A2
WO2007095892A2 PCT/DE2007/000237 DE2007000237W WO2007095892A2 WO 2007095892 A2 WO2007095892 A2 WO 2007095892A2 DE 2007000237 W DE2007000237 W DE 2007000237W WO 2007095892 A2 WO2007095892 A2 WO 2007095892A2
Authority
WO
WIPO (PCT)
Prior art keywords
thin
solar
radiation
solar cells
cells
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.)
Ceased
Application number
PCT/DE2007/000237
Other languages
German (de)
English (en)
Other versions
WO2007095892A3 (fr
Inventor
Jürgen UEHLIN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Durlum Leuchten GmbH Lichttechnische Spezialfabrik
Original Assignee
Durlum Leuchten GmbH Lichttechnische Spezialfabrik
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Durlum Leuchten GmbH Lichttechnische Spezialfabrik filed Critical Durlum Leuchten GmbH Lichttechnische Spezialfabrik
Priority to DE112007001004T priority Critical patent/DE112007001004A5/de
Publication of WO2007095892A2 publication Critical patent/WO2007095892A2/fr
Publication of WO2007095892A3 publication Critical patent/WO2007095892A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • H10F77/00—Constructional details of devices covered by this subclass
    • H10F77/40—Optical elements or arrangements
    • H10F77/42—Optical elements or arrangements directly associated or integrated with photovoltaic cells, e.g. light-reflecting means or light-concentrating means
    • H10F77/488—Reflecting light-concentrating means, e.g. parabolic mirrors or concentrators using total internal reflection
    • 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

Definitions

  • photovoltaic solar cells For the environmentally friendly generation of electricity, photovoltaic solar cells have been increasingly used nowadays. These convert solar radiation directly into electrical current by each one photon of the solar radiation releases an electron in the solar cell, the photon must have a minimum energy is given at the most commonly used silicon cells at wavelengths below about 950 nm - increases towards shorter wavelengths the energy . If the photon has more energy than needed for the release of the electron, it is converted into heat in the cell.
  • the most common solar cells are made of silicon which is used in monocrystalline, polycrystalline or amorphous form. The efficiency and also the price of the cells runs in the same order. In the future, materials such as CIS, CdTe, GaAs, CulnSe2, but also organic, or biological cells, etc., which are still not used industrially today, gain more shares.
  • the preferably, narrow, strip-shaped solar modules are positioned in the center of the concentrated solar radiation so that they are illuminated relatively uniformly to avoid local overheating. Their size and especially their width depends on the location and the desired concentration. For visual and static reasons, you will want to use smaller (narrower) modules and concentrators on a roof surface than in outdoor installation.
  • the object of the invention is to provide a method in which the land use and efficiency is improved.
  • the concentrators By coating the concentrators with cheap solar cells, such as amorphous silicon, their reflection properties are only moderately affected and they are also able to direct radiation directing focus on the centrally arranged, high-quality solar cell. Furthermore, however, they can themselves convert the nonconcentrable diffused light into electricity. This means that always 100% of the total area is available for light conversion and only change the proportions of the two converters depending on the type of radiation.
  • the shape of the reflector is chosen so that direct radiation components are deflected by total reflection at the reflector side near the sun. As a result, mirror losses are minimized and by the more efficient conversion of the concentrated light in the higher-value solar cell, the efficiency is improved.
  • the main body of the reflector is made of hard or / and dimensionally stable material, in particular organic or inorganic materials such as glass, ceramic, metal and plastic or mixtures thereof.
  • Said basic body can be equipped directly with thin photovoltaically active layers, but also as a carrier of separately produced thin-film solar cells, preferably in the form of films or tiles, etc., can be used.
  • These carriers are adhered to the body, laid, stretched, etc., that they at least largely conform to its shape.
  • a substrate of transparent material in which the solar cells are arranged on the solar side.
  • the carrier material is, for example, glass, with totalreflection far more than 90% of the direct radiation can be concentrated on the central solar cell and at the same time the remaining direct radiation and the diffuse radiation can be converted by the thin-film solar cells.
  • Solar tracking around at least one axis improves the yield whenever direct radiation is present. In order to set up the solar cell array on roofs of residential buildings, they should be flat.
  • Fig. 1 shows a cross section through a single, nachGermanbare solar cell assembly with
  • FIGS. 3 to 5 show the exemplary position of tracked concentrators during the course of the day.
  • the transparent cover 6, which is preferably made of mineral or synthetic glass and rests on the side walls of the tub 5, can fulfill several tasks by protecting the dirt-sensitive, light-guiding surfaces against adverse weather conditions, heat-insulating acts and by a suitable, preferably anti-reflection surface structuring the efficiency improved.
  • the material of the carrier 1 is preferably selected so that the wavelengths of the penetrating solar radiation enable a low-loss conversion into electricity. This can be achieved for example by fluorescent properties.
  • FIGS. 3 to 5 show, by way of indication, different orientations of the concentrators which are tracked to the sun.
  • the tracking can be one or two axes.
  • the distance between the tub bottom 5 and the cover 6 is preferably so large that the concentrators can also be pivoted beyond the vertical.

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

Panneaux solaires concentrateurs et photovoltaïques dont les surfaces réfléchissantes sont constituées au moins partiellement de cellules solaires à mince couche.
PCT/DE2007/000237 2006-02-22 2007-02-09 Panneaux solaires concentrateurs dotés de cellules à mince couche Ceased WO2007095892A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007001004T DE112007001004A5 (de) 2006-02-22 2007-02-09 Konzentrierende Solarkollektoren mit Dünnschichtzellen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006008166.8 2006-02-22
DE102006008166A DE102006008166A1 (de) 2006-02-22 2006-02-22 Konzentrierende Solarkollektoren mit Dünnschichtzellen

Publications (2)

Publication Number Publication Date
WO2007095892A2 true WO2007095892A2 (fr) 2007-08-30
WO2007095892A3 WO2007095892A3 (fr) 2007-11-01

Family

ID=38261658

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2007/000237 Ceased WO2007095892A2 (fr) 2006-02-22 2007-02-09 Panneaux solaires concentrateurs dotés de cellules à mince couche

Country Status (2)

Country Link
DE (2) DE102006008166A1 (fr)
WO (1) WO2007095892A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033771A1 (de) 2009-07-17 2011-04-07 Schünemann, Gerhard Solarreflektor zur Leistungssteigerung von Photovoltaikanlagen und Verwendung eines solchen Solarreflektors

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2148377A1 (fr) * 2008-07-25 2010-01-27 Toshihiko Sakurai Système de génération d'énergie solaire utilisant une batterie solaire
FR2981504A1 (fr) * 2011-10-12 2013-04-19 Julien Martin Marcel Pellat Dispositif generateur photovoltaique

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4427838A (en) * 1981-06-09 1984-01-24 Goldman Arnold J Direct and diffused solar radiation collector
DE3130226A1 (de) * 1981-07-31 1983-02-17 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München Solarenergieanlage mit photozellen
US5902417A (en) * 1996-12-12 1999-05-11 Hughes Electornics Corporation High efficiency tandem solar cells, and operating method
US6515217B1 (en) * 2001-09-11 2003-02-04 Eric Aylaian Solar cell having a three-dimensional array of photovoltaic cells enclosed within an enclosure having reflective surfaces
WO2006083742A2 (fr) * 2005-02-01 2006-08-10 Prueitt Melvin L Concentration de l'energie solaire

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009033771A1 (de) 2009-07-17 2011-04-07 Schünemann, Gerhard Solarreflektor zur Leistungssteigerung von Photovoltaikanlagen und Verwendung eines solchen Solarreflektors

Also Published As

Publication number Publication date
WO2007095892A3 (fr) 2007-11-01
DE112007001004A5 (de) 2009-01-22
DE102006008166A1 (de) 2007-08-23

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