EP3379645B1 - Antenne solaire comprenant du graphène, unité solaire comportant plusieurs antennes solaires et procédé de fonctionnement d'une unité solaire - Google Patents

Antenne solaire comprenant du graphène, unité solaire comportant plusieurs antennes solaires et procédé de fonctionnement d'une unité solaire Download PDF

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Publication number
EP3379645B1
EP3379645B1 EP17162302.8A EP17162302A EP3379645B1 EP 3379645 B1 EP3379645 B1 EP 3379645B1 EP 17162302 A EP17162302 A EP 17162302A EP 3379645 B1 EP3379645 B1 EP 3379645B1
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European Patent Office
Prior art keywords
solar
antenna
incident light
graphene layer
antennas
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EP17162302.8A
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German (de)
English (en)
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EP3379645A1 (fr
Inventor
Mehmet Abbak
Ömür ÖCAL
Görkem MEMISOGLU
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Vestel Elektronik Sanayi ve Ticaret AS
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Vestel Elektronik Sanayi ve Ticaret AS
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/248—Supports; Mounting means by structural association with other equipment or articles with receiving set provided with an AC/DC converting device, e.g. rectennas

Definitions

  • the present invention refers according to claim 1 to a solar unit and according to claim 7 to a method for operating a solar unit.
  • Document US20120032847A1 discloses a system for dynamically reconfiguring the radiation pattern of a collection of slot antennas.
  • a collection of slot antennas of various lengths and widths are fabricated.
  • the control system independently drives the feed to one or more slot antennas to produce the desired radiation pattern.
  • the control system activates and deactivates the feed to different slot antennas, thus dynamically reconfiguring the generated radiation pattern.
  • Document CN106450735A discloses a graphene radio-frequency antenna and a preparation method thereof.
  • the graphene radio-frequency antenna comprises a substrate, an insulating layer, a feed transmission line, a ground electrode and a radiation patch.
  • the insulating layer covers the substrate; the feed transmission line connected with the radiation patch covers the insulating layer; and the ground electrode covers the insulating layer.
  • the feed transmission line and the ground electrode are in a coplane state and form a coplanar waveguide feed structure.
  • the radiation patch is a graphene patch.
  • the antenna having a simple structure and simple preparation method can work at an ultra-high frequency band and works in a high frequency band.
  • Document GB2516443A discloses a sensor which is configured to sense infrared radiation.
  • the sensor comprises a sensing portion comprising a pyroelectric material configured to be responsive to incident electromagnetic radiation and a transducing portion configured to convert the response of the pyroelectric material into an output signal; and at least one antenna configured to direct the electromagnetic radiation onto the sensor.
  • the transducing portion may be a layer of graphene which may extend between a source contact and a drain contact.
  • the antenna may be a plasmonic antenna.
  • the antenna may be configured to resonate at a particular wavelength.
  • a device may comprise a plurality of sensors each having an antenna configured to have a different resonant wavelength. The device may be used as a thermal imaging device or a heat sensor.
  • Said solar antenna array may comprise an array of randomly placed carbon nanotube antennas that may capture and convert sunlight into electrical power. Methods for constructing the solar antenna array may use a mold and self-aligning processing steps to minimize cost. Designs may be optimized for capturing a broad spectrum of non-polarized light. Alternatively, the array may generate light, and when connected in to an array of independently controllable sections may operate as either a reflective or light transmitting display.
  • a rectenna element capable of power conversion from electromagnetic (EM) waves of high frequencies.
  • a rectenna element generates currents from two sources-based upon the power of the incident EM wave and from an n-type semiconductor, or another electron source attached to a maximum voltage point of an antenna element. The combined current from both sources increases the power output of the antenna, thereby increasing the detection sensitivity of the antenna of a low power signal.
  • Full wave rectification is achieved using a novel diode connected to a gap in the antenna element of a rectenna element.
  • the diode is conductive at forward bias voltage or reverse bias voltage, and rectifies the antenna signal generated by the desired EM wave received by antenna raise from the rectenna element of the present invention may be used as a building block to create large rectenna arrays.
  • the before mentioned object is solved by a solar antenna for generating electric energy according to claim 1.
  • the solar antenna according to the present invention preferably comprises at least a graphene layer, an insulation layer and a carrying means, wherein the insulation layer is arranged between the graphene layer and the substrate respectively carrying means.
  • the term solar antenna preferably defines a rectenna (rectifying antenna).
  • the thickness of the graphene layer is preferably below 1000nm, in particular below 500nm or below 300nm, and/or above 100nm.
  • the graphene layer is covered by a transparent protection means.
  • the transparent protection means is preferably a glass and has preferably a thickness that is thicker than the thickness of the graphene layer.
  • Transparent hereby preferably means said at least visible light and preferably UV and/or infrared light is able to pass the protection means.
  • the graphene layer has according to a further preferred embodiment of the present invention a surface between 1nm 2 and 1000nm 2 , in particular between 2nm 2 and 10nm 2 or between 10nm 2 and 500nm 2 or between 20nm 2 and 400nm 2 .
  • This embodiment is beneficial since the inventive solar antenna can be used at all photovoltaic systems that have some space between the individual modules, in particular gaps of a few millimeters or centimeters. That means the solar antennas according to the present invention can be arranged in between said gaps.
  • gaps between photovoltaic cells can be filled with especially nano-scale solar antennas. This kind of systems with nano-scale antennas increases the collected total amount of the energy.
  • this invention can be used in many solar photovoltaic panel systems.
  • Said solar unit in particularly a solar photovoltaic panel system, according to claim 5.
  • Said solar unit preferably comprises at least multiple photo voltaic modules for generating electric energy, a solar antenna according to any of proceeding claims, wherein electric energy generated by the photo voltaic modules and the solar antenna is feed into a common electric lead.
  • At least one antenna array respectively multiple solar antennas or rectennas with smart control module are provided to track the sun during the daytime without using any mechanical motion.
  • the carrying means is a back sheet connecting the cells of multiple, in particularly at least or exactly two, photovoltaic modules, wherein at least one string, in particularly two or at least two strings, is arranged on one side of the cells of each photovoltaic module, wherein the back sheet is arranged on the opposing side of each of said cells.
  • This embodiment is beneficial since the present structure of the PV cells has been used in the design and manufacturing of the antennas. Materials that have been used in PV cells also constitute the structure of the antennas. So, manufacturing cost of the system has also been degraded. Thus, in this invention - by using same platform for the PV cells and antennas - area, that is used for energy collecting, has been efficiently utilized. So, two different solar power collector techniques have been merged on the same substance, incorporated without using any additional area, and so solar power collector efficiency (watts per square meter) is raised.
  • the photo voltaic modules are according to a further preferred embodiment of the present invention spaced apart from each other, wherein an intermediate space between said photovoltaic modules is present, wherein the solar antenna, in particular a plurality of solar antennas, is arranged in said intermediate space.
  • the string is according to a further preferred embodiment of the present invention covered by a protection means, wherein the protection means is transparent for light, in particularly at least visible and/or UV light and/or infrared light.
  • the protection means is transparent for light, in particularly at least visible and/or UV light and/or infrared light.
  • the carrying means is a string of a photovoltaic module, wherein the string is arranged on one side of cells of said photovoltaic module, wherein a back sheet is arranged on the opposing side of said cells.
  • a first control means for detecting the orientation of incident light is provided and a second control means connected to the solar antenna for detecting the power and/or phase of incident light captured by said solar antenna is provided.
  • the critical problem in this subject is the change of the direction of the sunlight during the day time.
  • current PV cell structures contain empty spaces which are not used for solar power harvesting. So, combining solar power collector antenna structures, together with PV system a more efficient total system results. By modifying the pattern of the antenna according to the angle incidence of sunlight which is related with to the time of the day, total amount of the energy that is collected can be increased, and more efficient accumulation of the energy can be obtained.
  • each array respectively array antenna consists of two different control units.
  • first of them which is preferably in the input part of the system, is to detect the orientation of the sun regarding to the sky.
  • the second module respectively second control means preferably comprises switch modules related with the phase shifters to manage the constitution of the proper beam forming with respect to the direction of sunlight which is detected in first phase respectively by first control means.
  • one or multiple of the herein described solar antennas are forming a solar antenna unit, wherein such first and second control means are present, wherein each solar antenna or an array of solar antennas is connected to said first and second control means.
  • the second control means comprises according to a further preferred embodiment of the present invention a phase shifter means for shifting the phase of incident light in dependency of the orientation of the incident light detected by the first module. This embodiment is beneficial since the efficiency of the overall system can be enhanced.
  • phase shifter control module An example of a phase shifter control module is disclosed here: https://www.researchgate.net/publication/257971538_Liquid_crystal_phase_shifters_at_mill imeter_wave_frequencies
  • the before mentioned object is also solved by a method according to claim 12 for operating a solar unit.
  • the method according to the present invention preferably comprises the steps: Providing a solar unit, wherein the solar unit comprises at least multiple photo voltaic modules for generating electric energy, multiple solar antennas according to any of claims 1 to 4, a first control means for detecting the orientation of incident light and a second control means connected to the solar antenna for detecting the power and/or phase of incident light captured by said solar antenna, wherein the second control means comprises a phase shifter means for shifting the phase of incident light in dependency of the orientation of the incident light detected by the first module, wherein electric energy generated by the photo voltaic modules and the solar antenna is feed into a common electric lead, Modifying the beam shape of incident light captured by said solar antennas in dependency of an orientation of said incident light.
  • Fig. 1a and 1b show two illustrations of a first system combining two different energy capturing techniques.
  • the solar unit preferably comprises a back sheet 12.
  • Said back sheet 12 serves as substrate respectively carrying layer for holding respectively carrying cells 14, 16 of PV modules and an insolation layer 4 of solar antenna 1.
  • Said insulation layer 4 is arranged between a graphene layer 2 and said back sheet 12.
  • On top of said cells 14, 16 preferably multiple string members 18 are present.
  • Said string members are preferably interconnecting multiple cells.
  • a protection means 8, in particularly a glass layer, is preferably arranged on top of said strings 18.
  • Fig. 1b shows a top view of the arrangement shown in fig. 1a.
  • Fig. 1b further shows that multiple, in particular nano-scale solar antennas 1, are arranged between the cells.
  • Preferably more than 12 solar antennas per cm 2 in particularly more than 1200 or more than 12000 or up to 1200 or up to 12000 or up to 20000, are arranged between said cells.
  • Fig. 2a and 2b show two illustrations of a second system combining two different energy capturing techniques.
  • Fig. 2a shows that cells 14, 16 of PV modules 10 are arranged on top of a back sheet 12 respectively substrate. Above said cell 14, 16 a string member 18 is present. Said string member preferably interconnects multiple cells 14, 16. On top of said sting member 18 an insulation layer 4 is present said insulation layer spaces a graphene layer and the string member 18 away from each other. A protection means 8 is arranged above said graphene layer 2. Thus, light passing said solar antenna 1 can be captured by the underlying cell of said PV module 10.
  • Fig. 2b shows said besides said solar antennas 1 a surface part of said cells 14, 16 is provided for capturing light.
  • the present invention refers to a solar unit at least comprising multiple photo voltaic modules for generating electric energy and at least one solar antenna at least comprising a graphene layer, an insulation layer and a carrying means, wherein the insulation layer is arranged between the graphene layer and the substrate.
  • the electric energy generated by the photo voltaic modules and the solar antenna is feed into a common electric lead.
  • present structure of the PV cells has been used in the design and manufacturing of the antennas. Materials that have been used in PV cells also constitute the structure of the antennas. So, manufacturing cost of the system has also been degraded.
  • the present invention refers to a solar antenna 1 for generating electric energy.
  • Said solar antenna comprises at least a graphene layer 2, an insulation layer 4 and a carrying means 6, wherein the insulation layer 4 is arranged between the graphene layer 2 and the carrying means 6.

Claims (13)

  1. Unité solaire (9), comprenant
    plusieurs modules photovoltaïques (10) pour la production d'énergie électrique,
    une antenne solaire (1) pour la production d'énergie électrique
    cette unité solaire (9) est caractérisée en ce que
    ladite antenne solaire comprend une couche de graphène (2), une couche d'isolation (4) et un moyen de support (6), dans laquelle ladite couche d'isolation (4) est disposée entre ladite couche de graphène (2) et ledit moyen de support (6),
    dans lequel l'énergie électrique générée par les modules photovoltaïques (10) et l'antenne solaire (1) est alimentée par une ligne électrique commune,
    dans lequel le moyen de support (6) est une paroi arrière (12) reliant les cellules (14, 16) d'une pluralité de modules photovoltaïques (10),
    dans lequel au moins une chaîne (18) est disposée sur un côté des cellules (14, 16) de chaque module photovoltaïque (10),
    où le dos (12) est situé sur le côté opposé de chacune des cellules (14, 16),
    où les modules photovoltaïques (10) sont espacés les uns des autres,
    où il y a un espace entre les modules photovoltaïques (10),
    dans lequel l'antenne solaire (1), en particulier une pluralité d'antennes solaires (1), est disposée dans l'espace intermédiaire.
  2. Unité solaire selon la revendication 1,
    caractérisé en ce que
    le brin (18) est couvert par un dispositif de protection (8), le dispositif de protection (8) étant transparent à la lumière, en particulier au moins à la lumière visible et aux UV.
  3. Unité solaire selon la revendication 1,
    caractérisé en ce que
    le dispositif de support (6) est une chaîne (18) d'un module photovoltaïque (10),
    où la chaîne (18) est disposée sur un côté des cellules (14, 16) du module photovoltaïque (10),
    où une paroi arrière (12) est disposée sur le côté opposé des cellules (14, 18).
  4. Unité solaire selon les revendications 1 à 3,
    caractérisé par
    un premier moyen de contrôle pour détecter l'orientation de la lumière incidente et un second moyen de contrôle connecté à l'antenne solaire pour détecter la puissance et/ou la phase de la lumière incidente détectée par l'antenne solaire (1).
  5. Unité solaire selon la revendication 4,
    caractérisé en ce que
    le second moyen de contrôle comprend des moyens de déphasage pour déphaser la lumière incidente en fonction de l'orientation de la lumière incidente détectée par le premier module.
  6. Unité solaire selon les revendications 1 à 5,
    caractérisé en ce que
    plusieurs antennes solaires (1) sont fournies et disposées en réseau.
  7. Unité solaire selon la revendication 1,
    caractérisé en ce que
    l'épaisseur de la couche de graphène (2) est inférieure à 1000 nm, en particulier inférieure à 500 nm ou inférieure à 300 nm.
  8. Unité solaire selon la revendication 1 ou 7,
    caractérisé en ce que
    la couche de graphène (2) est recouverte d'un dispositif de protection transparent (8).
  9. Unité solaire selon l'une des revendications ci-dessus,
    caractérisé en ce que
    la couche de graphène (2) a une surface comprise entre 1 nm2 et 1000 nm2, en particulier entre 10 nm2 et 500 nm2 ou entre 20 nm2 et 400 nm2.
  10. Méthode d'exploitation d'une unité solaire (9) définie selon la revendication 1,
    cette méthode se caractérise par le fait qu'elle comprend l'étape
    fournir l'unité solaire (9),
    où l'unité solaire (9) comprend
    une pluralité de modules photovoltaïques (10) pour la production d'énergie électrique, plusieurs antennes solaires (1), qui sont disposées en réseau,
    dans laquelle chaque antenne solaire comprend une couche de graphène (2), une couche d'isolation (4) et un moyen de support (6), la couche d'isolation (4) étant disposée entre la couche de graphène (2) et le moyen de support (6),
    un premier moyen de contrôle pour détecter l'orientation de la lumière incidente, et
    un second moyen de contrôle connecté à l'antenne solaire pour détecter la puissance et/ou la phase de la lumière incidente détectée par l'antenne solaire (1),
    le second moyen de commande comprenant des moyens de déphasage pour déphaser la lumière incidente en fonction de l'orientation de la lumière incidente détectée par le premier module,
    dans lequel l'énergie électrique produite par les modules photovoltaïques et l'antenne solaire (1) est alimentée par une ligne électrique commune,
    et en ce que la méthode comprend l'étape de
    modifier la forme du faisceau de la lumière incidente détectée par les antennes solaires (1) en fonction de l'orientation de la lumière incidente.
  11. Méthode selon la revendication 10,
    caractérisé en ce que
    l'épaisseur de la couche de graphène (2) est inférieure à 1000 nm, en particulier inférieure à 500 nm ou inférieure à 300 nm.
  12. Méthode selon la revendications 10 ou 11,
    caractérisé en ce que
    la couche de graphène (2) est recouverte d'un dispositif de protection transparent (8).
  13. Méthode selon l'une des revendications 10 à 12 ci-dessus,
    caractérisé en ce que
    la couche de graphène (2) a une surface comprise entre 1 nm2 et 1000 nm2, en particulier entre 10 nm2 et 500 nm2 ou entre 20nm2 et 400 nm2.
EP17162302.8A 2017-03-22 2017-03-22 Antenne solaire comprenant du graphène, unité solaire comportant plusieurs antennes solaires et procédé de fonctionnement d'une unité solaire Active EP3379645B1 (fr)

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EP17162302.8A EP3379645B1 (fr) 2017-03-22 2017-03-22 Antenne solaire comprenant du graphène, unité solaire comportant plusieurs antennes solaires et procédé de fonctionnement d'une unité solaire

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Publication number Priority date Publication date Assignee Title
CN112768880B (zh) * 2019-11-06 2022-12-06 北京石墨烯研究院 一种基于石墨烯组合物的带宽可调谐5g天线

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US7649496B1 (en) 2004-10-12 2010-01-19 Guy Silver EM rectifying antenna suitable for use in conjunction with a natural breakdown device
US20070240757A1 (en) * 2004-10-15 2007-10-18 The Trustees Of Boston College Solar cells using arrays of optical rectennas
US7782255B2 (en) * 2007-10-23 2010-08-24 The Boeing Company System and methods for radar and communications applications
US20120032847A1 (en) 2010-08-05 2012-02-09 Utah State University Integrated reconfigurable solar panel antenna
US9917217B2 (en) 2012-04-24 2018-03-13 Novasolix, Inc. Solar antenna array and its fabrication and uses
GB2516443A (en) * 2013-07-22 2015-01-28 Nokia Corp An apparatus for sensing
CN106450735A (zh) * 2016-11-14 2017-02-22 北京邮电大学 一种石墨烯射频天线及其制备方法
CN106373968A (zh) * 2016-11-14 2017-02-01 郭玮 一种含碳素材料的光电转化装置

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