DE102011106807A1 - Sun concentrator for light bundling photovoltaic high-performance plants, has deflection and reflection mirrors and photovoltaic module mounted on carrier, where reflection mirror is opened at longitudinal and/or transverse side of module - Google Patents

Sun concentrator for light bundling photovoltaic high-performance plants, has deflection and reflection mirrors and photovoltaic module mounted on carrier, where reflection mirror is opened at longitudinal and/or transverse side of module Download PDF

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DE102011106807A1
DE102011106807A1 DE201110106807 DE102011106807A DE102011106807A1 DE 102011106807 A1 DE102011106807 A1 DE 102011106807A1 DE 201110106807 DE201110106807 DE 201110106807 DE 102011106807 A DE102011106807 A DE 102011106807A DE 102011106807 A1 DE102011106807 A1 DE 102011106807A1
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module
mirrors
reflection
mirror
deflection
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Reinhold Seger
Jürgen R. Dietrich
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    • 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
    • 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

The concentrator has a photovoltaic module (A) and a reflection mirror (B) that are directly aligned to Sun. The reflection mirror and a deflection mirror (C) are made of flat mirrors, where arrangement of the reflection mirror reproduces a partial parabola form. The deflection and reflection mirrors and the module are mounted on a mounting frame (E), where solar tracking takes place around an axis or two axes. The reflection mirror is opened at a longitudinal side and/or a transverse side of the module. The deflection mirror is fastened between the reflection mirror and the module.

Description

Die Erfindung bezieht sich auf einen Sonnenkonzentrator für lichtbündelnde Photovoltaik-Anlagen. Das Sonnenlicht kann auf ein Einzelnes oder auf Mehrere in reihe oder parallel angeordneten PV-Modulen gebündelt werden. Da mindestens ein Umlenkspiegel vorhanden ist, werden sowohl das PV-Modul als auch die Reflexionsspiegel direkt zur Sonne ausgerichtet. Sowohl die Reflexionsspiegel als auch die Umlenkspiegel sind aus einen oder mehreren flachen Spiegeln aufgebaut.The invention relates to a solar concentrator for light-bundling photovoltaic systems. The sunlight can be focused on a single or multiple PV modules in series or in parallel. Since at least one deflection mirror is present, both the PV module and the reflection mirror are aligned directly to the sun. Both the reflection mirror and the deflection mirror are composed of one or more flat mirrors.

Es sind bereits eine ganze Reihe von photovoltaischen Hochleistungsanlagen bekannt, bei denen das Sonnelicht Mittels eines langgestreckten Parabolspiegel oder einer Fresnel-Linsensystem auf die lichtempfindlichen Flächen einer großen Anzahl in einer Reihe hintereinander angeordneter PV-Module konzentrieren oder fokussieret wird. Bei derartigen Anlagen ist es notwendig, den Parabolspiegel oder das Linsensystem dem Tages- und Jahreszeitlichen veränderten Sonnenstand nachzuführen. Es ist auch schon bekannt die Parabolspiegel aus mehreren flachen Spiegeln nachzubilden.A whole series of high-performance photovoltaic systems are already known, in which the sun light is concentrated or focused on the photosensitive surfaces of a large number in a series of PV modules arranged one behind the other by means of an elongate parabolic mirror or a Fresnel lens system. In such systems, it is necessary to track the parabolic mirror or the lens system to the day and season changed sun position. It is also already known to model the parabolic mirrors of several flat mirrors.

Die bekannten photovoltaischen Hochleistungsanlagen bieten wegen der guten Ausnutzung des Sonnenlichtes einen beachtlichen Wirkungsgrad.The known high-performance photovoltaic systems offer a considerable efficiency because of the good utilization of sunlight.

Sie haben allerdings auch eine Reihe von Nachteilen.

  • – Die Parabolspiegel müssen mit einer hohen Genauigkeit hergestellt werden.
  • – Das Nachführsystem welches das System der Sonne nachführt muss sehr genau arbeiten.
  • – Die Diffusen Sonnenstrahlen welche fast 50% des Stromertrags ausmachen werden nur teilweise genutzt.
  • – Das Photovoltaikmodul ist nicht direkt zur Sonne ausgerichtet und kann deswegen nur einen Teil der Sonnenstrahlen direkt ausnutzen. Dies macht sich besonders bemerkbar bei Verschmutzung oder Abdeckung durch Schnee auf dem Reflexionsspiegel. Durch die fehlende Reflexion sinkt die Leistung der Photovoltaik-Module deutlich.
However, they also have a number of disadvantages.
  • - The parabolic mirrors have to be manufactured with high accuracy.
  • - The tracking system which tracks the system of the sun must work very accurately.
  • - The diffuse sunrays, which account for almost 50% of the electricity yield, are only partially used.
  • - The photovoltaic module is not directly aligned with the sun and therefore can only use part of the sun's rays directly. This is particularly noticeable when it is dirty or covered by snow on the reflecting mirror. Due to the lack of reflection, the power of the photovoltaic modules drops significantly.

Der Erfindung liegt die Aufgabe zugrunde, die Kosten bekannter Photovoltaik-Anlagen zu senken und die Ausnutzung der Sonnenstrahlung zu maximieren.The invention has for its object to reduce the cost of known photovoltaic systems and to maximize the use of solar radiation.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Photovoltaikmodul, wie bei herkömmlichen PV-Anlagen direkt zur Sonne ausgerichtet ist. Zusätzlich wird über die Umlenkspiegel und Reflexionsspiegel das Photovoltaikmodul bestrahlt. Bei Verschmutzung oder Abdeckung der Reflexionsspiegel bleibt die Leistung des Photovoltaikmoduls erhalten. Lediglich die Verstärkung durch die Konzentration der Sonnenstrahlen wird geringer.This object is achieved in that the photovoltaic module, as in conventional PV systems is aligned directly to the sun. In addition, the photovoltaic module is irradiated via the deflection mirrors and reflection mirrors. If the reflecting mirrors are soiled or covered, the power of the photovoltaic module is maintained. Only the gain through the concentration of the sun's rays is reduced.

Die Solarmodule werden durch die Kombination aus Reflexionsspiegel und Umlenkspiegel komplett beleuchtet.The solar modules are completely illuminated by the combination of reflecting mirror and deflecting mirror.

Ein erheblicher Vorteil dieser Ausführung ist, dass die gesamte Fläche der Umlenkspiegel kleiner ist als die gesamte Fläche der Reflexionsspiegel.A significant advantage of this design is that the entire surface of the deflection mirror is smaller than the entire surface of the reflecting mirror.

Auch kann die Konzentration des Sonnenlichtes individuell den Photovoltaikmodulen angepasst werden. Durch die Verwendung mehrerer Reflexionsspiegel und dementsprechend angepassten Umlenkspiegel kann die Menge des reflektierten Sonnenlichtes verändert werden.Also, the concentration of sunlight can be individually adapted to the photovoltaic modules. By using several reflection mirrors and correspondingly adapted deflection mirrors, the amount of reflected sunlight can be changed.

Durch einen größer gewählten Ausleuchtungsbereich als eigentlich das Photovoltaikmodul benötigt, kann auf eine hochgenaue Sonnennachführung verzichtet werden.Due to a larger selected illumination range than actually needed the photovoltaic module, can be dispensed with a highly accurate Sonnennachführung.

Jede Sonnengeführte Photovoltaikanlage die die zusätzliche Last aufnehmen kann, könnte mit dem Umlenkspiegel und dem Reflexionsspiegel nachgerüstet werden.Each solar-powered photovoltaic system that can absorb the additional load, could be retrofitted with the deflection mirror and the reflecting mirror.

Claims (4)

Die Erfindung bezieht sich auf einen Sonnenkonzentrator für lichtbündelnde Photovoltaik-Anlagen. Das Sonnenlicht kann auf ein Einzelnes oder auf Mehrere in Reihe oder Parallel angeordneten PV-Modulen (A) gebündelt werden. Da mindestens ein Umlenkspiegel (C) vorhanden ist, werden sowohl das PV-Modul (A) als auch die Reflexionsspiegel (B) direkt zur Sonne ausgerichtet. Sowohl die Reflexionsspiegel (B) als auch die Umlenkspiegel (C) sind aus einen oder mehreren flachen Spiegeln aufgebaut. Die Anordnung der Reflexionsspiegel (B) ist teilweise einer Parabelform nachgebildet. Gemeinsam sind die Umlenkspiegel (C), die PV-Modul (A) und die Reflexionsspiegel (B) auf einem Träger (E) montiert. Die Sonnennachführung kann um eine Achse oder um zwei Achsen erfolgen. Die Reflexionsspiegel (B) können an der Längs- oder/und der Querseite der PV-Module (A) angebraucht seinThe invention relates to a solar concentrator for light-bundling photovoltaic systems. The sunlight can be focused on one or more PV modules (A) arranged in series or in parallel. Since at least one deflection mirror (C) is present, both the PV module (A) and the reflection mirror (B) are aligned directly to the sun. Both the reflection mirrors (B) and the deflection mirrors (C) are constructed from one or more flat mirrors. The arrangement of the reflection mirror (B) is partially modeled a parabolic shape. Together, the deflecting mirrors (C), the PV module (A) and the reflecting mirrors (B) are mounted on a support (E). The sun tracking can be done around an axis or about two axes. The reflection mirrors (B) can be used on the longitudinal and / or the transverse side of the PV modules (A) Sonnenkonzentrator nach Anspruch 1, dadurch gekennzeichnet, dass die Reflexionsspiegel (B) paarweise auf der Außenseite angebracht sind und die Umlenkspiegel (C) zwischen Reflexionsspiegel (B) und PV-Modul (A) befestigt sind. Die Reflexionsspiegel (B) haben die Orientierung zum PV-Modul (A). (1)Solar concentrator according to claim 1, characterized in that the reflection mirrors (B) are mounted in pairs on the outside and the deflecting mirrors (C) between the reflecting mirror (B) and PV module (A) are attached. The reflection mirrors (B) have the orientation to the PV module (A). ( 1 ) Sonnenkonzentrator nach Anspruch 1 und 2, dadurch gekennzeichnet, dass Umlenkspiegel (C) außen angebracht sind. Die Reflexionsspiegel (B) sind in Richtung Umlenkspiegel (C) orientiert d. h. vom PV-Modul weg. (2)Solar concentrator according to claim 1 and 2, characterized in that deflecting mirrors (C) are mounted on the outside. The reflection mirrors (B) are oriented in the direction of the deflection mirror (C), ie away from the PV module. ( 2 ) Sonnenkonzentrator nach Anspruch 1, 2 und 3, dadurch gekennzeichnet, dass sich nur auf einer Seite ein Umlenkspiegel (C) befindet, dieser wird von einer oder beiden Seiten mit Reflexionsspiegel (B) bestrahlt. (3)Sun concentrator according to claim 1, 2 and 3, characterized in that a deflection mirror (C) is located on only one side, this is irradiated from one or both sides with reflecting mirror (B). ( 3 )
DE201110106807 2011-07-07 2011-07-07 Sun concentrator for light bundling photovoltaic high-performance plants, has deflection and reflection mirrors and photovoltaic module mounted on carrier, where reflection mirror is opened at longitudinal and/or transverse side of module Withdrawn DE102011106807A1 (en)

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DE201110106807 DE102011106807A1 (en) 2011-07-07 2011-07-07 Sun concentrator for light bundling photovoltaic high-performance plants, has deflection and reflection mirrors and photovoltaic module mounted on carrier, where reflection mirror is opened at longitudinal and/or transverse side of module

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131485A (en) * 1977-08-08 1978-12-26 Motorola, Inc. Solar energy collector and concentrator
US5374317A (en) * 1990-09-26 1994-12-20 Energy Systems Solar, Incorporated Multiple reflector concentrator solar electric power system
DE10026014A1 (en) * 2000-05-25 2001-11-29 Peer Schoenau Device for amplifying sunlight on solar modules has Fresnel prism mirrors between modules, Fresnel center mirrors central with respect to modules or deflection mirrors
DE20314372U1 (en) * 2002-12-23 2003-12-04 Day4 Energy Inc. Solar energy concentrator for solar energy system has reflector made up of many plane facets approximating parabolic mirror, focusing sunlight on array of photovoltaic cells
US20070035864A1 (en) * 2001-12-17 2007-02-15 Vasylyev Sergiy V Multistage system for radiant energy flux transformation
DE102007052338A1 (en) * 2007-11-02 2009-05-07 Rev Renewable Energy Ventures, Inc. Photovoltaic installation has multiple level mirrors for concentration of sunlight on concentrator module with photovoltaic element, where mirrors are aligned together in form of Fresnel mirror field in parallel manner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131485A (en) * 1977-08-08 1978-12-26 Motorola, Inc. Solar energy collector and concentrator
US5374317A (en) * 1990-09-26 1994-12-20 Energy Systems Solar, Incorporated Multiple reflector concentrator solar electric power system
DE10026014A1 (en) * 2000-05-25 2001-11-29 Peer Schoenau Device for amplifying sunlight on solar modules has Fresnel prism mirrors between modules, Fresnel center mirrors central with respect to modules or deflection mirrors
US20070035864A1 (en) * 2001-12-17 2007-02-15 Vasylyev Sergiy V Multistage system for radiant energy flux transformation
DE20314372U1 (en) * 2002-12-23 2003-12-04 Day4 Energy Inc. Solar energy concentrator for solar energy system has reflector made up of many plane facets approximating parabolic mirror, focusing sunlight on array of photovoltaic cells
DE102007052338A1 (en) * 2007-11-02 2009-05-07 Rev Renewable Energy Ventures, Inc. Photovoltaic installation has multiple level mirrors for concentration of sunlight on concentrator module with photovoltaic element, where mirrors are aligned together in form of Fresnel mirror field in parallel manner

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