WO2009129599A1 - Ensemble optique pour appareils photovoltaïques concentrateurs - Google Patents

Ensemble optique pour appareils photovoltaïques concentrateurs Download PDF

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Publication number
WO2009129599A1
WO2009129599A1 PCT/CA2009/000424 CA2009000424W WO2009129599A1 WO 2009129599 A1 WO2009129599 A1 WO 2009129599A1 CA 2009000424 W CA2009000424 W CA 2009000424W WO 2009129599 A1 WO2009129599 A1 WO 2009129599A1
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WO
WIPO (PCT)
Prior art keywords
lens
focusing member
cylindrical
sunlight
active area
Prior art date
Application number
PCT/CA2009/000424
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English (en)
Inventor
Mihai Grumazescu
Original Assignee
Mihai Grumazescu
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 Mihai Grumazescu filed Critical Mihai Grumazescu
Publication of WO2009129599A1 publication Critical patent/WO2009129599A1/fr

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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
    • H01L31/052—Cooling means directly associated or integrated with the PV cell, e.g. integrated Peltier elements for active cooling or heat sinks directly associated with the PV cells
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B3/00—Simple or compound lenses
    • G02B3/02—Simple or compound lenses with non-spherical faces
    • G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G02B5/09—Multifaceted or polygonal mirrors, e.g. polygonal scanning mirrors; Fresnel mirrors
    • 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
    • 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

Definitions

  • This invention relates to the field of concentrating photovoltaics (CPV), more particularly an optical assembly that collects, concentrates and feeds sunlight to high efficiency solar cells. BACKGROUND OF THE INVENTION
  • Photovoltaic (PV) solar cells for CPV systems have a very small active area and, being produced by integrated circuits fabrication technologies, are essentially square or rectangular in shape. At the same time, the output of most optical assemblies is a round focus in which a high photonic power of 50-100 W7cm2 is concentrated.
  • DNI is the solar Direct Norma! lrradiance (W/m2)
  • CR is the Concentration Ratio
  • OCE the Optical Components Efficiency
  • CIE Cell Illumination Efficiency.
  • a more accurate match of the ILF with the CPV cell active area is important not only for efficiency reasons but also for avoiding damage through overheating or even catastrophic failure of neighboring parts such as bypass diodes, wires and substrate. In situations c) and d) of Figurei , these can happen even if the CPV system is supported by a perfectly aligned solar tracker. In conclusion, any mis
  • a concentrating photovoltaic apparatus for generating electric current from sunlight comprising: a photovoltaic cell for receiving the sunlight as an incident beam and for generating an output current from the incident beam; the cell having a rectangular active area for receiving the incident beam; the assembly including the focusing member being arranged relative to the cell to form a rectangular strip which is focused onto the active area of the cell to substantially match the rectangular shape of the active area.
  • the cylindrical focusing member is a lens and particularly a cylindrical Fresnel lens.
  • the cylindrical focusing member is a parabolic mirror preferably used in a Cassegrain construction, that is the mirror is parabolic in side elevation and is part cylindrical along its length.
  • the cylindrical focusing member is a primary focusing member for forming the rectangular strip at a position spaced from the focal length of the primary focusing member and wherein the rectangular strip is focused by a secondary focusing member into a rectangle matching the active area of the cell ..
  • the secondary focusing member can be a circular Fresnel lens, although the use of circular lenses is not preferred as these can introduce some distortion.
  • the secondary focusing member is a second cylindrical Fresnel lens arranged at right angles to the first and arranged to focus the strip into a rectangular patch matching the active area of the cell.
  • the primary and secondary lenses are Fresnel lenses which are connected back to back.
  • one of the Fresnel lenses is defined by four sections each defined by a base defining one side of the lens and two sides converging to an apex at a center of the lens where each of the sections has the grooves thereof parallel to the base and wherein the other of the Fresnel lenses is defined by four sections each defined by a base defining one side of the lens and two sides converging to an apex at a center of the lens where each of the sections has the grooves thereof at right angles to the base.
  • the secondary focusing member is shaped in plan to match the focus of the cylindrical focusing member by omitting unnecessary parts of the member where no light is falling.
  • the secondary focusing member can be formed into a strip shape or a cross shape.
  • the secondary focusing member is a Fresnel lens formed into a strip shape or a cross shape.
  • the cylindrical focusing primary member may be formed of a first and a second cylindrical focusing portion with the portions arranged at right angles and in a common array such that the two cylindrical focusing portions focus the sunlight into a right angle cross.
  • Each of the two portions can be defined by two triangular portions arranged pointing inwardly to an apex and arranged into an array which is diagonal joining at the apex at a center of the array.
  • the cylindrical secondary focusing member may be also formed of a first and a second cylindrical focusing portion with the portions arranged at right angles and in a common array in a symmetrical manner to the primary but arranged at 90 degrees to the primary.
  • each of the two portions is defined by two triangular portions arranged pointing inwardly to an apex and arranged into an array which is diagonal joining at the apex at a center of the array.
  • the array is shaped to match the focus of the cylindrical focusing member with the light from the cylindrical focusing member falling directly onto the array of cells.
  • the array can be formed into a strip shape or a cross shape.
  • a concentrating photovoltaic apparatus for generating electric current from sunlight comprising: a photovoltaic cell for receiving the sun ⁇ ght as an incident beam and for generating an output current from the incident beam; the cell having a rectangular front active area for receiving the incident beam; and a concentrating assembly for concentrating sunlight onto the active area , the concentrating assembly comprising a first Fresnel lens arranged to receive the sunlight and a second Fresnel lens arranged downstream of the first lens for receiving the light therefrom; wherein the first Fresnel lens is formed by four sections each having a base defining one side of the lens and two sides converging to an apex at a center of the lens where each of the sections has the grooves thereof parallel to the base; and wherein the second Fresnel lens is formed by four sections each having a base defining one side of the lens and two sides converging to an apex at a center of the iens where each of the sections has the
  • the second Fresnel lens is located immediately downstream of the first and is connected thereto as a common lens structure.
  • Figure 1 is a schematic illustration of the incident light on a rectangular cell showing calculations of the efficiency.
  • Figure 2 is an isometric view of a first embodiment of an apparatus according to the present invention showing two lenses for focussing onto a single cell.
  • Figure 3 is an isometric view of a second embodiment of an apparatus according to the present invention showing two lenses for focussing onto a single cell.
  • Figure 4A is a plan view of the primary lens of Figure 2.
  • Figure 4B is a plan view of the primary lens of Figure 3.
  • Figure 5 is an isometric view of a third embodiment of an apparatus according to the present invention similar to that of Figure 2 with the secondary lens shaped to match the pattern of light falling from the primary lens and thus the secondary lens is strip shaped.
  • Figure 6 is an isometric view of a fourth embodiment of an apparatus according to the present invention similar to that of Figure 3 with the secondary lens shaped to match the pattern of light falling from the primary lens and thus the secondary lens is cross shaped.
  • Figure 7 is an isometric view of a fifth embodiment of an apparatus according to the present invention showing two cylindrical Fresnel lenses for focussing onto a single cell.
  • Figure 8 is an isometric view of a sixth embodiment of an apparatus according to the present invention similar to Figure 7 with the secondary lens shaped to match the pattern of light falling from the primary lens and thus the secondary lens is strip shaped.
  • Figure 9A is a plan view of the primary lens of Figure 7.
  • Figure 9B is a plan view of the secondary lens of Figure 7.
  • Figure 1OA is a plan view of a primary lens of a seventh embodiment similar to that of Figure 7 which uses the four part divided primary lens of Figure 3.
  • Figure 10B is a plan view of a secondary lens of seventh embodiment of Figure 1OA, which is similar to that of Figure 7, and which uses a four part divided secondary lens in conjunction with the four part primary lens of Figure 10A.
  • Figure 11 is an isometric view of an eighth embodiment of an apparatus according to the present invention showing a single lens focussing onto a strip shaped array of cells.
  • Figure 12 is an isometric view of a ninth embodiment of an apparatus according to the present invention showing a single lens focussing onto two strip shaped arrays of cells thus defining a cross shaped array of cells.
  • Figure 13 shows the process of cutting a single cylindrical Fresnel lens into four pieces in diagonal directions.
  • Figure 14A is an isometric view of a first one of two lenses which are assembled from the pieces of Figure 13.
  • Figure 14B is an isometric view of a second one of two lenses which are assembled from the pieces of Figure 13.
  • Figure 15A is an isometric view from the top of the optical assembly made of the lenses in Figures 14A and 14B.
  • Figure 15B is an isometric view from the bottom of the optical assembly made of the lenses in Figures 14A and 14B.
  • Figure 16 is an isometric view of a PV module comprising the optical assembly of Figures 15A and 15B.
  • Figure 17 is an isometric view of a tenth embodiment of an apparatus according to the present invention showing two mirrors in a Cassegrain arrangement for focussing onto a single cell.
  • Figure 18 is an exploded view of the primary mirror of Figure 17.
  • Figure 19 is an isometric view of an eleventh embodiment of an apparatus according to the present invention showing two mirrors in a Cassegrain arrangement for focussing onto a single cell.
  • Each of the embodiments shown herein includes a photovoltaic cell 5 mounted on a support or substrate 6 which is commonly finned at 6A to act as a heat sink.
  • the cell has a front face defining an active area onto which the light is incident with two leads not shown for conducting the current generated by the photovoltaic effect.
  • the active area is rectangular and generally, although not essentially, square thus generating the inefficiencies previously described if the incident light beam is circular.
  • Figure 2 shows a combination of a cylindrical Fresnel lens 1 used as a primary optical concentrator and a circular Fresnel lens 2 used as a secondary optical concentrator.
  • Circular Fresnel lenses have the conventional lens grooves of a circular lens arranged in circles on the flat base.
  • Cylindrical Fresnel lenses have the lens grooves of a cylindrical lens arranged in a parallel array on the flat base.
  • Such lenses are previously known for many other purposes and are commonly made from plastics material by a molding process and hence can be relatively inexpensive. The detail of the construction and the methods of manufacture are therefore generally known to a person skilled in this art.
  • the incident light S is focussed by the primary optical concentrator onto the secondary and is again focussed by the secondary onto the cell.
  • the focus pattern is shown in grey tones at 3 and 4.
  • the secondary 2 is placed at a shorter distance than the focal distance of the lens 1 , the light is formed into a strip which is thus rectangular.
  • Lens 1 thus produces the rectangular strip focus 3, parallel with its linear grooves
  • the lens 2 projects the strip 3 onto the focus 4, which is a reduced image of focus 3.
  • This focus 4 is thus rectangular and preferably square.
  • the assembly of lenses is designed in focal length and dimensions of the lens and the distances between the lenses and the focus in such a way that focus 4 perfectly matches the size and shape of the CPV cell 5 mounted on the substrate 6.
  • the focus 4 is rectangular or square due to the initial formation of the strip 3 which is then reduced primarily in length but also in width to form a rectangular focus 4.
  • FIG 3 presents another embodiment of the present invention in which lens 1 of FlG. 2 is replaced with lens 7 which is made, as shown in Figure 1OB, of two cylindrical convergent Fresnel lenses pieces 7A and 7B each cut at 45° into two triangular pieces making a total of four pieces which are assembled into a square, meeting at a center apex 7C. It will be appreciated that this generates two strip focuses at right angles to form an orthogonal cross 8 on lens 2. Again the cross is formed at the off-focus location so as to form two strips at right angles forming the cross.
  • Lens 2 then provides a matched ILF 4 with the active area of the cell 5, which is a compressed image of the focus 8.
  • the advantage of this layout over that of Figure 2 is that lens 2 works at half of the light intensity per unit area as the area is roughly double, compared with lens 2 in Figure 2. For this reason, the embodiment of Figure 2 is more suitable for low and medium concentration CPV systems.
  • the construction shown in Figure 1 OA can be used which is again made from four triangular pieces 7H 1 7J, 7K and 7L where the pieces meet at a center apex and each piece has a base of the triangle forming one side of the square lens structure. In this construction the grooves of the Fresnel construction lie at right angles to the base of the triangle.
  • This iens structure will focus the cross formed by the first lens of Figure 1OB into a square which can be dimensioned by selecting the spaces between the planes of the lenses and the cell to match the dimensions of the cell.
  • Figures 2 and 3 the aperture of the primary lens and the foci of both lenses are shown in grey tone.
  • the Fresnel lenses 1 and 7 are shown in Figure 4A and Figure 4B, respectively, for better understanding the direction of their grooves.
  • the grooves of the two pieces 7A are mutually parallel as indicated at 7D and the grooves 7E of the pieces 7B are also mutually parallel and at right angles to the pieces 7A.
  • the lenses be made of Acrylic Plastic with 92% transmission but any other material for visible light and stability under UV radiation, commercially available or under development, can be considered. In a mass production of such concentrators, savings in optical grade material can be of importance.
  • Figure 5 shows that the secondary lens 21 can actually be plastic-molded in a strip shape matching the focus from the primary lens with unused areas being eliminated.
  • figure 6 shows that the secondary lens 21 can be molded in a cross shape matching the focus from the primary iens. This feature also contributes to a weight reduction of large modules and arrays.
  • the secondary iens use as the secondary iens circular Fresnel lenses, this may not be preferred due to possible distortions that may be introduced.
  • the secondary lens is formed by a cylindrical Fresnel lens 8 and 8A respectively.
  • the grooves of the secondary lens 8 have to be oriented at 90° in respect to the grooves of the primary lens 1.
  • the same principle of elimination of the unused areas of the secondary lens, as shown for example in Figure 5, so that its dimensions match only the focus from the primary, can be applied as shown in Figure 8 at the cylindrical iens 8A, for optical materia! savings.
  • the above arrangements use primary and secondary lenses.
  • the solar cells can be directly illuminated by the strip or orthogonal cross off-focus of the primary lens 1 or 7, respectively, as shown in Figure 11 and Figure 12, without the provision of the secondary lens.
  • the primary lens forms a strip as shown In Figure 11 or a cross as shown in Figure 12.
  • additional cells 5 are provided and formed into an array matching the shape of the pattern from the primary.
  • the aperture of the primary lens has to be significantly wider.
  • the secondary lens makes the ROP to gain 7-8% depending on how the module is designed and attached to the solar tracker.
  • FIG. 13 to 15 A process of fabrication of a prototype of this optical assembly is explained in Figures 13 to 15 in order to better explain the arrangement and operation of this lens.
  • the lenses of Figures 13 to 15 are in fact the same lenses as previously shown in Figure 1 OA and 10B.
  • a conventional cylindrical Fresnel lens as shown schematically in Figure 13 is cut along the diagonal directions, four triangular pieces result of two different types. They two types are labelled as TYPE A and TYPE B.
  • TYPE A the grooves are at right angles to the base A1 of the triangular cut piece and in TYPE B the grooves are parallel to the base B1.
  • the TYPE A pieces converge to an apex A2 and the TYPE B pieces converge to an apex B2.
  • Figure 14A four pieces of TYPE A are assembled into Lens 100 where the bases A1 form the sides of the rectangular lens and the apexes A2 meet at the center.
  • the grooves extend at right angles to the sides A1.
  • Figure 14B four pieces of TYPE B are assembled in Lens 200 where the bases B1 form the sides of the rectangular lens and the apexes B2 meet at the center.
  • the grooves extend parallel to the sides B1. In both lenses.
  • FIGS 15A and 15B each show an isometric view from the top and bottom of the final optical assembly.
  • the lenses are formed into a composite structure operating on the light substantially at a common plane (spaced only by the physical structure necessary to form the composite lens).
  • the resultant path of the light is however basically the same whether the lens pieces are spaced or combined and they act to form a square image which is matched to the dimension of the cell by selecting the required spacing between the tens and the ceil.
  • the composite lens is a non-imaging lens system.
  • Figure 16 illustrates how a photovoltaic module can utilize this optical assembly formed by lenses 100 and 200 when a square or rectangular solar cell is placed in the PV cell plane situated above the focal point F.
  • the !LF will perfectly match the active area of the PV cell and the CIE will be very close to 100%, provided the solar tracker accuracy.
  • the application of this optical assembly can improve the electrical energy yield by 22%.
  • the iens 200 acts on the light in advance of the lens 100.
  • the individual lenses can be reversed relative to the light so that instead of being back to back as shown with the flat surfaces in contact, they can be front to front, bearing in mind that all the shapes and grooves required are molded into an outer surface of a two sided lens structure.
  • Modules comprising a secondary optical lens experience a supplementary energy loss due to the heating of the secondary lens that has to handle the whole concentrated photonic power in a very small volume.
  • the main advantage of the optical assembly shown in Figure 16 is the fact that it provides all necessary optical features, that is concentration and PV cell uniform illumination in a perfectly matched ILF to the PV cell active area in just one step, with one molded plastic component forming a single composite lens. Compared with modules comprising a secondary optical piece, this optical assembly can improve the module yield by 5-7%, increase the reliability and decrease its price.
  • the above arrangements use cylindrical lenses and particularly although not necessarily Fresnel lenses as the focusing members of the concentrating assembly.
  • the arrangement can be generated not only with lenses but also with mirrors using for example the conventional and well known Cassegrain mirror system.
  • Figure 17 illustrates a Cassegrain type optical assembly with a converging primary mirror and a secondary mirror directing through a hole in the primary.
  • the primary mirror 10 is made of four cylindrical parabolic parts 10A, 1 OB, 1 OC and 10 D cut at 45° as seen in the exploded view of Figure 18. They are made of molded plastic parts covered with a highly reflective layer on the parabolic side.
  • the reflective layer can be an aluminum multi-layer adhesive foil or obtained through vacuum metal deposition of silver or aluminum.
  • the pieces 10A to 10D as shown in Figure 18 are each parabolic in side elevation and part cylindrical along their length.
  • the four parts 1OA to 1 OD are assembled on a rigid base 13.
  • the secondary mirror 14 is placed under the focal plane of the primary mirror 10 and is cross-shaped to match the concentration pattern of mirror 10. Unlike traditional Cassegrain secondary mirrors, mirror 14 is not only convex-sphehcai in one plane as indicated at 14A but also convex-spherical in an orthogonal plane 14B, in such a way to project through the opening 15 of mirror 10 a compressed image of the cross focus of the primary mirror. T his image, through a correct optical design, will perfectly match the size and shape of the CPV solar cell 5.
  • Figure 19 illustrates a similar embodiment to that of Figure 17 using the parabolic/cylindrical mirrors of Figure 17 except that it is arranged to form a strip shape focus from the primary mirror 17 and uses a single strip shaped secondary mirror 18 shaped to match the focus of the primary as previously described.
  • the primary is formed in effect of a single cylindrical mirror which is shaped in side elevation to form a parabola so as to focus the incoming light into the strip along the center line above the mirror 17.
  • a center strip 19 divides the mirror 17 into two portions and this does not need to be reflective as it is shaded by the secondary mirror 18.
  • a central hole 20 on the strip 19 allows the light focussed by the secondary 18 to pass through the primary onto the cell 5.
  • the secondary mirror 18 can be concave as shown so as to be convergent or can be convex as in FIG. 17 so as to be divergent.
  • the mirrors can be simply formed from flat strips side by side at an angle to each other to simulate the parabolic shape without excessive distortion.
  • a combination of reflective and refractive non-imaging optics is also possible, such as covering each of the four segments 10A-10D of mirror 10 in Figures 17 and 18 with preferably stretched (curved) pieces of TYPE A from Figure 13, in which case the secondary mirror is no more necessary.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Optics & Photonics (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention porte sur un appareil photovoltaïque concentrateur pour générer un courant électrique à partir de la lumière solaire qui comprend une cellule photovoltaïque ayant une zone active rectangulaire (généralement carrée) pour recevoir le faisceau incident et un ensemble concentrateur pour concentrer la lumière solaire sur la face avant en une forme qui est généralement carrée plutôt que circulaire et qui correspond à la zone active. L'ensemble peut utiliser un seul élément de focalisation cylindrique, généralement une lentille de Fresnel, effectuant une focalisation sur un générateur photovoltaïque de sorte qu'une bande formée par la lentille est appliquée sur une bande des cellules. Selon une variante, l'ensemble utilise deux lentilles cylindriques agencées pour focaliser la lumière solaire en une forme carrée agencée pour correspondre à une seule lentille. Celles-ci peuvent être utilisées en une position espacée de façon à prendre une bande formée par la première et à focaliser la bande dans la forme de la cellule, ou elles peuvent être deux lentilles de Fresnel dans une structure de lentille commune.
PCT/CA2009/000424 2008-04-22 2009-04-08 Ensemble optique pour appareils photovoltaïques concentrateurs WO2009129599A1 (fr)

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US61/046,880 2008-04-22

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Cited By (9)

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CN102062938A (zh) * 2010-08-27 2011-05-18 中国科学院长春光学精密机械与物理研究所 聚光装置及其设计方法、聚光光伏发电装置
CN102338929A (zh) * 2010-07-27 2012-02-01 鸿富锦精密工业（深圳）有限公司 聚光装置
WO2012014088A3 (fr) * 2010-07-30 2012-05-18 Morgan Solar Inc. Module solaire à guidage lumineux, son procédé de fabrication et panneau fabriqué à partir de celui-ci
CN102480060A (zh) * 2011-05-18 2012-05-30 深圳光启高等理工研究院 一种高透射天线
CN103325877A (zh) * 2012-03-21 2013-09-25 摩根阳光公司 平面式太阳能集光器
US9335530B2 (en) 2007-05-01 2016-05-10 Morgan Solar Inc. Planar solar energy concentrator
US9337373B2 (en) 2007-05-01 2016-05-10 Morgan Solar Inc. Light-guide solar module, method of fabrication thereof, and panel made therefrom
CN105607238A (zh) * 2016-02-26 2016-05-25 陕西科技大学 应用于聚光光伏发电的九焦点叠加均匀聚光菲涅尔透镜
WO2018114770A1 (fr) * 2016-12-19 2018-06-28 Osram Opto Semiconductors Gmbh Composant optoélectronique

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US5665174A (en) * 1992-06-15 1997-09-09 Laing; Johannes Nikolaus Platform for recovering solar energy
US20070289622A1 (en) * 2006-06-19 2007-12-20 Lockheed Martin Corporation Integrated solar energy conversion system, method, and apparatus
WO2008039509A2 (fr) * 2006-09-30 2008-04-03 Soliant Energy, Inc. Concentrateurs optiques présentant au moins un foyer linéaire et procédés associés
US20080314436A1 (en) * 2007-03-30 2008-12-25 O'connell Dan Solar augmentation system

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Publication number Priority date Publication date Assignee Title
US5665174A (en) * 1992-06-15 1997-09-09 Laing; Johannes Nikolaus Platform for recovering solar energy
US20070289622A1 (en) * 2006-06-19 2007-12-20 Lockheed Martin Corporation Integrated solar energy conversion system, method, and apparatus
WO2008039509A2 (fr) * 2006-09-30 2008-04-03 Soliant Energy, Inc. Concentrateurs optiques présentant au moins un foyer linéaire et procédés associés
US20080314436A1 (en) * 2007-03-30 2008-12-25 O'connell Dan Solar augmentation system

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9335530B2 (en) 2007-05-01 2016-05-10 Morgan Solar Inc. Planar solar energy concentrator
US9337373B2 (en) 2007-05-01 2016-05-10 Morgan Solar Inc. Light-guide solar module, method of fabrication thereof, and panel made therefrom
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