WO2012089485A1 - Module photovoltaïque dont la saleté en surface est détectée - Google Patents

Module photovoltaïque dont la saleté en surface est détectée Download PDF

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Publication number
WO2012089485A1
WO2012089485A1 PCT/EP2011/072198 EP2011072198W WO2012089485A1 WO 2012089485 A1 WO2012089485 A1 WO 2012089485A1 EP 2011072198 W EP2011072198 W EP 2011072198W WO 2012089485 A1 WO2012089485 A1 WO 2012089485A1
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WO
WIPO (PCT)
Prior art keywords
light source
receptacle
photovoltaic module
sensor
light
Prior art date
Application number
PCT/EP2011/072198
Other languages
English (en)
Inventor
Onur Yaman
Original Assignee
Arcelik Anonim Sirketi
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 Arcelik Anonim Sirketi filed Critical Arcelik Anonim Sirketi
Priority to EP11794138.5A priority Critical patent/EP2659515A1/fr
Publication of WO2012089485A1 publication Critical patent/WO2012089485A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
    • H02S40/10—Cleaning arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00—Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02S50/10—Testing of PV devices, e.g. of PV modules or single PV cells
    • H02S50/15—Testing of PV devices, e.g. of PV modules or single PV cells using optical means, e.g. using electroluminescence
    • 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

Definitions

  • the present invention relates to a photovoltaic module that generates electric energy from solar energy and whereof the dirt on the surface is detected.
  • Photovoltaic modules comprise solar panels having multiple numbers of photovoltaic cells connected in parallel to each other.
  • the photovoltaic modules provide generation of electric energy from solar energy.
  • the solar panels are placed in open areas, facing the sun in order to provide an efficient conversion of this energy.
  • the dust and particles suspended in air accumulate on the surface as a layer since the surface of the solar panel is open to the atmosphere. This layer decreases the efficiency of the panel by causing reduction in the amount of light reaching the solar panel.
  • Various systems like wiper systems, electrical charging systems etc are provided for cleaning the surfaces of the solar panels.
  • a transparent layer is disposed on the upper surface of the solar panel and the particles accumulate on this layer without reaching the solar panel.
  • cleaning operation on the layer is performed by the user or the cleaning operation is automatically performed constantly or at certain time intervals.
  • the said transparent layer prevents some portion of the sunlight to penetrate and cause the panel efficiency decrease.
  • the solar panel is located in a closed box having a transparent sheet disposed on one surface.
  • the dust and dirt accumulate on the transparent sheet.
  • a light source facing the transparent sheet and a sensor are included in the box, and as the amount of accumulated dust on the transparent sheet increases, a higher ratio of light is reflected from the dust layer and reaches the sensor.
  • the automatic cleaning system is activated and cleans the dirt and dust on the sheet.
  • the aim of the present invention is the realization of a photovoltaic module whereof the surface dirt is detected and that provides the dirt level on the solar panel to be detected without causing the efficiency of the solar panel to decrease.
  • At least one solar panel is disposed, providing electric energy to be generated from solar energy and at least one detection means providing the amount of dust and dirt accumulated on the panel to be detected.
  • the detection means comprises at least one light source that delivers light in a constant flux unto a surface, at least one sensor providing the light supplied by the light source to be detected, at least one receptacle surrounding the sensor, with one surface parallel to the panel and produced from transparent material and at least one control unit that monitors the amount of light reaching the sensor, generating a warning signal when the amount of light falls to a predetermined level.
  • the receptacle is produced from a material similar to the coating on the panel.
  • the dust accumulating on the receptacle and the panel is at quite similar levels to each other.
  • the receptacle is produced from a transparent material like glass etc and the surface thereof parallel to the panel is coated by a material similar to the coating on the panel.
  • the dust accumulated on the receptacle and the panel is at quite similar levels to each other.
  • the light source is mounted outside the receptacle and placed so as to emit light on the surface of the receptacle parallel to the panel.
  • the sensor is disposed inside the receptacle in the region where the light supplied by the light source reaches.
  • the light source is controlled by the control unit.
  • the light supplied by the light source passes through the surface of the receptacle whereon dust is accumulated before reaching the sensor. As the amount of dust and dirt on the surface increases, the amount of light that can reach the sensor by passing through this surface also decreases.
  • the sensor generates an output signal proportionate to the amount of light reaching thereto and delivers it to the control unit.
  • the control unit provides the cleaning operation to start by generating a signal when the output signal falls to a certain value or alerts the user.
  • the light source and the sensor operate constantly.
  • the light source and the sensor are operated by the control unit at certain time intervals.
  • a photovoltaic module realized in order to attain the aim of the present invention is illustrated in the attached figure, where:
  • Figure 1 – is the schematic view of the photovoltaic module of the present invention.
  • the photovoltaic module (1) comprises at least one solar panel (2) providing electric energy to be generated from solar energy and at least one detection means (3) that provides the amount of dust and dirt accumulated on the solar panel (2) to be detected.
  • the detection means (3) comprises,
  • At least one control unit (7) that monitors the amount of light reaching the sensor (5) and generates a warning signal when the amount of light decreases to a predetermined level ( Figure 1).
  • the light source (4) is mounted outside the receptacle (6) and placed so as to deliver light on the surface of the receptacle (6) parallel to the solar panel (2).
  • the light source (4) transmits light in a constant flux onto this surface and the amount of light reaching the sensor (5) by passing through the surface decreases as dust and dirt accumulates on the said surface.
  • light in constant flux is delivered continuously by the light source (4).
  • the light source (4) delivers light in constant flux at certain time intervals. In this embodiment, at which intervals the light source (4) operates is controlled by the control unit (7).
  • a laser diode that supplies laser light is used as the light source (4).
  • the light source (4) comprises at least one light emitting diode (LED).
  • the senor (5) is disposed inside the receptacle (6) and opposite the light source (4), in other words in the region where the light supplied by the light source (4) reaches.
  • the sensor (5) delivers an output signal to the control unit (7) by measuring the amount and luminous intensity of the light reaching thereto.
  • the senor (5) operates constantly together with the light source (4).
  • the senor (5) is operated together with the light source (4) at certain time intervals by the control unit (7).
  • the receptacle (6) is produced from a transparent material having physical and chemical properties equivalent to the coating on the solar panel (2).
  • a coating is provided on the surface of the receptacle (6) remaining between the light source (4) and the sensor (5) which is equivalent to the physical and chemical properties of the coating on the surface of the solar panel (2).
  • the coating provides the amount of dust and dirt accumulated over time to be almost at the same level as the accumulation on the solar panel (2).
  • the surface of the solar panel (2) is placed with a certain angle so that the sunlight reaches almost vertically onto the surface, the surface of the receptacle (6) remaining between the light source (4) and the sensor (5) is also at the same angle as the surface of the solar panel (2).
  • the angle difference between the solar panel (2) and the coating is avoided thereby preventing differences in dirtiness that may arise due to this variation.
  • the light source (4), the sensor (5) and the receptacle (6) are placed in a position as close as possible to the solar panel (2) so that the dust and dirt accumulate on the solar panel (2) can be at the same level as on the surface of the receptacle (6) remaining between the light source (4) and the sensor (5).
  • the control unit (7) controls the sensor (5) and the light source (4) and reviews the output signal delivered from the sensor (5).
  • the control unit (7) is calibrated after the installation of the detection means (3) is performed. During this calibration operation, when the dirt level on the receptacle (6) is at the highest allowable value, the output signal level (ampere, voltage etc) of the sensor (5) is measured and this value is recorded in the control unit (7) as a threshold value. While the detection means (3) operates, the control unit (7) generates a warning signal in the case the output signal reaches the threshold value. If there is an automatic cleaning system present on the solar panel (2), this warning signal can activate the cleaning system. If the cleaning system is to be started by the user or if the cleaning operation is to be performed by the user, a visual or auditory signal can be delivered about the necessity of cleaning the surfaces of the panel (2) and the receptacle (6).
  • the dirt on the panel (2) can be detected without covering the upper surface of the solar panel (2) with a transparent sheet and without causing decrease in efficiency of the solar panel (2).
  • the solar panel (2) is not required to be dismounted, the position changed or to be turned off during the installation of the detection means (3). This not only saves time but also provides ease of use.

Abstract

La présente invention concerne un module photovoltaïque (1) qui génère de l'énergie électrique à partir de l'énergie solaire et dont la saleté sur la surface est détectée. Le module photovoltaïque (1) selon la présente invention comprend un panneau solaire (2) et au moins un moyen de détection (3) qui indique la quantité de poussière et de saleté à détecter accumulée sur le panneau solaire (2) à détecter. Le moyen de détection comprend au moins un réceptacle dont une surface est parallèle à la cellule solaire, une source de lumière à l'extérieur du réceptacle, au moins un capteur situé à l'intérieur du réceptacle, et au moins une unité de commande qui contrôle la quantité de lumière atteignant le capteur et génère un signal d'alerte quand la quantité de lumière passe en-dessous d'un niveau prédéfini.
PCT/EP2011/072198 2010-12-30 2011-12-08 Module photovoltaïque dont la saleté en surface est détectée WO2012089485A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11794138.5A EP2659515A1 (fr) 2010-12-30 2011-12-08 Module photovoltaïque dont la saleté en surface est détectée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2010/11188 2010-12-30
TR201011188 2010-12-30

Publications (1)

Publication Number Publication Date
WO2012089485A1 true WO2012089485A1 (fr) 2012-07-05

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ID=45315793

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/072198 WO2012089485A1 (fr) 2010-12-30 2011-12-08 Module photovoltaïque dont la saleté en surface est détectée

Country Status (2)

Country Link
EP (1) EP2659515A1 (fr)
WO (1) WO2012089485A1 (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112860B3 (de) * 2013-11-21 2014-10-02 Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH Detektor zur Erkennung einer Verschmutzung sowie Verfahren zur Detektion von Schmutz
WO2015162322A1 (fr) 2014-04-24 2015-10-29 Fundación Tekniker Capteur de saleté et procédé de détection de la quantité de saleté d'une surface
DE102015005408A1 (de) * 2015-04-29 2016-11-03 Axis24 GmbH Verfahren und Vorrichtung zur Ermittlung des Transmissionsgrades von Energiewandlern
FR3046511A1 (fr) * 2016-01-06 2017-07-07 Abderahman Kriouile Systeme de detection automatique de salissure dans les installations a energie solaire
DE102018204146A1 (de) * 2018-03-19 2019-09-19 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vefahren zum Schätzen eines Zustandes eines Globalstrahlungssensors und Messstation mit Globalstrahlungssensor
WO2019195718A1 (fr) * 2018-04-05 2019-10-10 Alliance For Sustainable Energy, Llc Procédés et systèmes de détermination de salissures sur des dispositifs photovoltaïques
TWI685374B (zh) * 2018-09-13 2020-02-21 友達光電股份有限公司 粉塵檢測裝置、包含其之太陽能電池系統、以及使用其之評估方法
WO2020115431A1 (fr) * 2018-12-06 2020-06-11 Electricite De France Procédé de détermination d'une vitesse de salissure d'une unité de production photovoltaïque
WO2021168499A1 (fr) * 2020-02-25 2021-09-02 Lifespan Energy Pty Ltd Dispositif, système et procédé de détection d'une salissure sur une surface

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150484A (ja) 1983-02-16 1984-08-28 Toshiba Corp 太陽電池パネルの自動洗浄システム
JPS6473371A (en) * 1987-09-14 1989-03-17 Minolta Camera Kk Image noise preventing device for copying machine
US20090266353A1 (en) * 2008-04-24 2009-10-29 Hon Hai Precision Industry Co., Ltd. Automatic cleaning system for solar panels and method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59150484A (ja) 1983-02-16 1984-08-28 Toshiba Corp 太陽電池パネルの自動洗浄システム
JPS6473371A (en) * 1987-09-14 1989-03-17 Minolta Camera Kk Image noise preventing device for copying machine
US20090266353A1 (en) * 2008-04-24 2009-10-29 Hon Hai Precision Industry Co., Ltd. Automatic cleaning system for solar panels and method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013112860B3 (de) * 2013-11-21 2014-10-02 Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH Detektor zur Erkennung einer Verschmutzung sowie Verfahren zur Detektion von Schmutz
WO2015162322A1 (fr) 2014-04-24 2015-10-29 Fundación Tekniker Capteur de saleté et procédé de détection de la quantité de saleté d'une surface
DE102015005408A1 (de) * 2015-04-29 2016-11-03 Axis24 GmbH Verfahren und Vorrichtung zur Ermittlung des Transmissionsgrades von Energiewandlern
FR3046511A1 (fr) * 2016-01-06 2017-07-07 Abderahman Kriouile Systeme de detection automatique de salissure dans les installations a energie solaire
DE102018204146A1 (de) * 2018-03-19 2019-09-19 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vefahren zum Schätzen eines Zustandes eines Globalstrahlungssensors und Messstation mit Globalstrahlungssensor
DE102018204146B4 (de) * 2018-03-19 2019-10-31 Deutsches Zentrum für Luft- und Raumfahrt e.V. Vefahren zum Schätzen eines Zustandes eines Globalstrahlungssensors und Messstation mit Globalstrahlungssensor
WO2019195718A1 (fr) * 2018-04-05 2019-10-10 Alliance For Sustainable Energy, Llc Procédés et systèmes de détermination de salissures sur des dispositifs photovoltaïques
US10734946B2 (en) 2018-04-05 2020-08-04 Alliance For Sustainable Energy, Llc Methods and systems for determining soiling on photovoltaic devices
TWI685374B (zh) * 2018-09-13 2020-02-21 友達光電股份有限公司 粉塵檢測裝置、包含其之太陽能電池系統、以及使用其之評估方法
WO2020115431A1 (fr) * 2018-12-06 2020-06-11 Electricite De France Procédé de détermination d'une vitesse de salissure d'une unité de production photovoltaïque
FR3089669A1 (fr) * 2018-12-06 2020-06-12 Electricite De France Procédé de détermination d'une vitesse de salissure d'une unité de production photovoltaïque
WO2021168499A1 (fr) * 2020-02-25 2021-09-02 Lifespan Energy Pty Ltd Dispositif, système et procédé de détection d'une salissure sur une surface

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