WO2020025107A1 - Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette - Google Patents

Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette Download PDF

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Publication number
WO2020025107A1
WO2020025107A1 PCT/EP2018/070698 EP2018070698W WO2020025107A1 WO 2020025107 A1 WO2020025107 A1 WO 2020025107A1 EP 2018070698 W EP2018070698 W EP 2018070698W WO 2020025107 A1 WO2020025107 A1 WO 2020025107A1
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WO
WIPO (PCT)
Prior art keywords
facet
solar
concentrator
sensors
solar concentrator
Prior art date
Application number
PCT/EP2018/070698
Other languages
English (en)
Inventor
Marco Antonio Carrascosa Pérez
Original Assignee
Carrascosa Perez Marco Antonio
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 Carrascosa Perez Marco Antonio filed Critical Carrascosa Perez Marco Antonio
Priority to PCT/EP2018/070698 priority Critical patent/WO2020025107A1/fr
Priority to MA52155A priority patent/MA52155B1/fr
Priority to CN201880098201.6A priority patent/CN112930462B/zh
Publication of WO2020025107A1 publication Critical patent/WO2020025107A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/77—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
    • F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
    • F24S23/82—Arrangements for concentrating solar-rays for solar heat collectors with reflectors characterised by the material or the construction of the reflector
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S30/00—Arrangements for moving or orienting solar heat collector modules
    • F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
    • F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • 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
    • H01L31/02—Details
    • H01L31/02016—Circuit arrangements of general character for the devices
    • H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
    • H01L31/02024—Position sensitive and lateral effect photodetectors; Quadrant photodiodes
    • 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
    • H02S20/00—Supporting structures for PV modules
    • H02S20/10—Supporting structures directly fixed to the ground
    • 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
    • H02S20/00—Supporting structures for PV modules
    • H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
    • H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
    • 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
    • H02S40/20—Optical components
    • H02S40/22—Light-reflecting or light-concentrating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S50/00—Arrangements for controlling solar heat collectors
    • F24S50/20—Arrangements for controlling solar heat collectors for tracking
    • F24S2050/25—Calibration means; Methods for initial positioning of solar concentrators or solar receivers
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/47—Mountings or tracking
    • 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

  • the invention relates to a facet for solar concentrators, preferably applied to solar concentration technologies for generating energy. More specifically, the invention relates to a heliostat facet comprising one or more autonomous tracking, calibration or adjustment means which are integrated inside the facet, as well as auxiliary means for providing autonomous power supply thereto.
  • the elements comprised in plants for solar thermal power generation generally have high technical interdependence which, in turn, reduces their modularity and scalability. This means that, in practice, each installation project of such plants must be individually designed for the study and planning of its implementation and production processes.
  • solar concentration technologies require high accuracy of their focusing and tracking systems (for example, in tower concentrators), which requires carrying out specific tasks for this purpose, such as reducing optical errors (for example, slope error effect in heliostats) by adequately canting the facets and applying a fine adjustment of its reflecting surfaces.
  • one of the most important features in the construction of solar fields corresponds to the elaboration of ditches and laying of wiring for electrical supply and communication between heliostats.
  • Other main costs are the development of adequately levelled foundations where the heliostats are installed, and the assembly and precise orientation of the facets that make up each heliostat, with its subsequent calibration to allow the solar radiation to be reflected as focused as possible to the desired receiving point.
  • the state-of-the-art slope error of heliostats is about 1.5 mrad, which require very large solar fields (more than 1500 m radius) to achieve a nominal power of about 110 MW.
  • Patent application WO 2005/098327 discloses powering the heliostats through the use of photovoltaic modules which are attached to their structure, as well as the possibility of their autonomous behaviour through wireless communication systems, thus eliminating the need for wiring the solar field, but without alleviating the problems arising from the assembly, canting, calibration and maintenance of a heliostat with multiple facets.
  • this patent proposes the use of a CCD or CMOS visual sensor that will detect a plurality of known places that will be used to triangulate the heliostat position.
  • this procedure translates the sensor-canting surface positioning error directly into a tracking error. Because of that, a high accuracy of sensors and mechanisation of components is required, which involves a high cost, and does not avoid the need of periodically calibrating the solar field.
  • Patent application ES 2393095 A1 discloses an autonomous solar concentrator, comprising the integration of photovoltaic panels in its structure which charge a capacitor assembly.
  • this improvement does not eliminate or reduce the problems resulting from the assembly, canting, calibration and general maintenance of a system of multiple facets in large concentration solar thermal plants, since it only eliminates the need for power wiring the heliostat.
  • the position of the photovoltaic module is fixed, so that its production will be lower during some periods of the day, depending on the relative position of the sun.
  • some of the effective reflective area is lost in the central region of the heliostat, in order to accommodate the photovoltaic module while avoiding the pedestal.
  • This system does not solve the need of high accuracy foundations and adds the cost of the solar module and its support to that of the heliostat.
  • Patent application US 2010/300510 A1 discloses solar concentrators equipped with facets that allow reflection or photovoltaic generation as a function of the angle of incidence of solar radiation.
  • the facets used in solar concentration technologies require a proper curvature and high optical quality in order to reflect the maximum possible solar energy on the receiver.
  • the technology disclosed in US 2010/300510 A1 does not allow reflecting the maximum energy available throughout the day, as solar angles of incidence on the reflector prevent proper control of the amount of energy reflected and absorbed, being variable throughout the day and the year. Further, this design does not allow using the same configuration in the whole solar field and, depending on the solar position, will yield insufficient reflection/photovoltaic production at some point of the day.
  • patent application US 2008/011288 A1 discloses solar concentrators comprising external accelerometer sensors for measuring the movement relative to a reference position. Since it is necessary to guarantee the relative position between these sensors, the reflective surface and the turning points of the system, the assembly itself becomes extremely expensive while needing high requirements of mechanical precision. Due to their nature and operation, these devices by themselves only serve to determine the position of the surface with respect to a given position, as is usually done by other devices such as magnetic tapes or rotary encoders.
  • this system does not eliminate the need for manual calibration of each of the heliostats, usually performed sequentially one by one, as the systems of photoelectric sensor or CCD ("charge-coupled device") cameras used in the prior art do not allow to differentiate the origin of the reflected light, but only of the incident light. This highly increases the time needed for the calibration and later periodical adjustment of the whole solar field. Furthermore, these devices require a power source and have certain risks of damage when exposed to the environment.
  • the present invention proposes a novel autonomous and self-supporting facet that integrates all the necessary auxiliary systems for operation and installation as well as its application to a solar concentrator devised for its implementation in any solar power plant, whose technical realization allows solving the afore-mentioned problems of the prior art.
  • the object of the present invention relates, without limitation, to the development of an autonomous and self-supporting facet for solar concentrators, suitable for its installation in a solar thermal plant.
  • the facet of the invention is regarded as autonomous in the sense that it comprises the power system and the sensors needed for its appropriate functioning. This facet is designed so that its performance becomes significantly increased, while its typical installation and maintenance times and costs are minimized compared to other known facets, being preferably adaptable to applications of heliostats and tower receivers, or to any solar concentrator technology, due to its structural components and simplicity.
  • Said facet preferably comprises a sandwiched layer arrangement including a front layer which comprises a reflective surface of the facet; an intermediate layer; and a rear layer for closing, insulating and/or supporting the intermediate layer.
  • the facet further comprises one or more self-calibration sensors for orientating the reflective surface towards the solar position and/or a radiation receiver, wherein said sensors are integrated, at least in part, in the front layer of the facet, and arranged at one or more housings formed at the intermediate layer thereof.
  • sensors are installed at the interior of the facet (namely within the front layer and the intermediate layer) and arranged so that they are levelled with the reflective surface thereof.
  • the sensors By arranging the sensors at the level of the reflective surface, they can directly take said surface as reference for calibration and measuring purposes, therefore avoiding the need of further auxiliary references or calculations in order to align their results with the proper orientation of the facet towards the sun or the receiver. In other words, the results obtained by the sensors can be directly applied to the positioning and alignment of the facet, since they share a common surface reference. Also, depending on the specific solar concentration technology used and the geometry of the facet, the sensors can be arranged at different points of the reflective surface, such as the center, its edges or its corners.
  • the arrangement of a sensor at the level of the reflective surface is to be understood in the sense that any detection/emission surface or detection/emission axis employed by said sensor, for orientating the reflective surface towards the solar position and/or a radiation receiver, is integrally aligned with said reflective surface, so that the need of calibrating the sensor with respect to the reflective surface of the facet is avoided, or at least highly reduced.
  • This advantage is achieved by means of the integration of the sensor in the intermediate layer of the facet, and more specifically in a housing therein, where the sensor is arranged during the fabrication process of the facet. This reduces substantially installation and calibration operations at the solar field.
  • sensor requirements regarding protection to the environment are reduced, since they are inside the facet and, therefore, protected from the direct effects of humidity, irradiation, erosion, soiling, impacts, etc.
  • the facet preferably comprises a reflective surface of high optical quality and reflectance and a sandwiched layer structure, within which is disposed a sensor assembly forming an integrated system of self-calibration, including a sensor for its orientation relative to the sun position, and wherein the sensor assembly is preferably located at the central region of the facet integrated in the layered structure and with the reference surface of the sensor in the same plane that the reflective surface.
  • the facet further comprises a series of integrated inclinometers that allow reaching an accurate positioning of the facet towards the sun and the remote receiver, reducing foundation and structure accuracy requirements and the periodic manual calibrations by automatically correcting the tracking deviations.
  • the position of the solar concentrator can be calculated and adapted by configuring the sensors and the actuation mechanism of the concentrator by suitable orientation algorithms, the readings taken by the inclinometers and the position of the receiver located at the central tower of the solar plant.
  • errors in solar tracking can be corrected so that the energy concentrated at the receiver is maximized.
  • the use of the self- calibration system of the invention reduces the mechanical and positioning requirements of the concentrator structure, as these errors can be corrected by the algorithms of the control system, which take into account the readings of the integrated sensors in the facet.
  • a solar concentrator for example, a heliostat
  • a single facet may be fixed to the ground by direct interlocking with the same, without the use of further foundation elements.
  • the facet further comprises an artificial vision camera to identify the environment and other elements of the solar plant where it is installed, complementing the solar sensors and the inclinometer of the self-calibration system.
  • the facet can reach larger typical sizes than facets known in the prior art without reduction of its performance.
  • the fact that the solar concentrator comprises a single facet eliminates costs and time delays associated with the process of canting or positioning the reflective surfaces, which typically occurs when the concentrator comprises several facets, in order to increase the optical quality of the assembly.
  • the curvature of the mirror needed to properly focus the energy on the receiver is typically obtained at the factory, thus eliminating canting and assembly errors of the reflecting surface, and leaving only the remaining optical quality of the facet, halving the slope error of the heliostat.
  • the facet of the invention advantageously comprises an integrated photovoltaic panel, preferably located at the upper area of the facet’s surface, which generates enough energy to power the concentrator in operation and in stand-by, being therefore autonomous and eliminating the need for power wiring the solar field, without needing an additional structural support for the photovoltaic module nor additional enclosures.
  • the need for solar field communications wiring is also eliminated, making its installation much easier.
  • the integration of the photovoltaic system within the facet’s structure increases electricity generation compared to the case where the photovoltaic panel was fixed to another region of the heliostat, without taking advantage of the auto-calibration means.
  • the facet further comprises an integrated grid for thermal dissipation, which prevents the reduction of performance of the photovoltaic panel due to a temperature rise at the photovoltaic cells.
  • heat dissipation is produced through a series of channels or orifices disposed in the inner part of the facet through the intermediate layer, and more preferably on the back side of the photovoltaic panel, practiced by removable inserts or mechanically after the manufacturing process of the facet.
  • stiffness values above 200 Pa/mrad RM s can be achieved, as well as spherical curvatures of high optical quality with typical form error values below 0.65 mrad.
  • the facet allows the use of front mirrors with thickness values between 0.95 mm and 2.00 mm.
  • a solar concentrator preferably capable of two-axis tracking.
  • Said concentrator constitutes a further object of the present invention and comprises at least:
  • the solar concentrator comprises a wireless communication system, allowing it to be fully independent and autonomous, thus eliminating the need for further communication wiring.
  • this communication system will be integrated into the concentrator’s control unit (for example, arranged at its pedestal).
  • this wireless communication system is a LoRaWAN network or an equivalent system with low consumption and high security communication protocols.
  • the concentrator comprises a system for electrical energy storage, thus allowing it to continue operating and communicating even when the photovoltaic unit is not operative.
  • said storage system is integrated into the control unit of said concentrator.
  • the invention proposes thus a solution based on autonomous facets for solar concentrators, which results in a substantial cost reduction per square meter in the entire solar field, and a simplification of the concentrator assembly and calibration systems thereof thus reducing the overall cost of energy production.
  • the integration of sensors and photovoltaic panel in the inside of the facet protects them from the exposition to the environment and the stringent design requirements against impacts, humidity, UV irradiation and water of the integrated devices that they would have in case of being out of the facet, with the corresponding increasing in the cost and complexity of their enclosures.
  • This also applies to the cleaning of the integrated autonomous facet, which can be performed on standard reflective surfaces, instead of needing specially designed systems that clean the sensor optical surfaces, without affecting them and without an increase of the cleaning time needed.
  • Figure 1 shows a perspective view of the front region of a heliostat and an integrated facet according to a preferred embodiment of the invention.
  • Figure 2 shows a perspective view of the rear region of a heliostat and an integrated facet according to a preferred embodiment of the invention.
  • Figure 3 shows an exploded view of a facet according to a preferred embodiment of the invention, where its main elements are depicted.
  • Figure 4 shows a detailed view of a facet according to Figure 3.
  • Figure 5 shows a detailed view of the integration of the solar sensor in a preferred embodiment of the facet.
  • the present invention proposes an autonomous and self-supporting facet (1 ) suitable for its integration in a solar concentrator (2) (being, for example, a heliostat).
  • the facet (1 ) comprises a reflective surface (3), preferably of high optical quality and reflectance, to be used for redirecting the received solar radiation towards a receiver element.
  • a solar concentrator (2) being, for example, a heliostat.
  • the facet (1 ) comprises a reflective surface (3), preferably of high optical quality and reflectance, to be used for redirecting the received solar radiation towards a receiver element.
  • a reflective surface (3) preferably of high optical quality and reflectance
  • the facet (1 ) of the invention advantageously comprises one or more self-calibration sensors (4) for assisting the driving means of the solar concentrator (2) in its positioning and tracking operations, wherein said sensors (4) are integrated into the structure of the facet (1 ) and preferably located at the central region thereof, as shown in Figure 3.
  • the facet (1 ) may comprise several sets of sensors (4), and these may be distributed along different points along the facet’s surface.
  • the sensors (4) comprise an integrated inclinometer for measuring the angular position of the facet (1 ) and facilitating proper orientation of the reflective surfaces of the solar concentrator (2).
  • Other sensors (4) usable in the scope of the invention are, for example, artificial vision cameras or radiation detectors.
  • the sensors (4) comprise solar detection means, which allow determining the alignment between the facet’s effective surface and the sun.
  • said solar detection means comprise a photovoltaic or a CMOS detector which measures the incidence angle of a sun ray in both azimuth and elevation, based on a quadrant photodetector device, where the sunlight is guided to the detector through a window above the sensor.
  • the sunlight induces photocurrents in the four quadrants of the detector.
  • the sensor points to the sun and detects when it is fully centered, based on the difference in the energy production of several photovoltaic detection regions (typically implemented as four quadrants).
  • optical sensors (13) will be preferably integrated in the facet as shown in Figure 5.
  • Optical sensor contact surface will be placed on the inner part of the glass (17) that is the substrate of the front layer (6) of the facet.
  • the assembly errors of the sensor with respect to the reflective surface are reduced to the ones of the manufacturing of raw float glass (flatness and local waviness) and the optical sensor (mainly, reference of the contact surface to the sensor system of reference), instead of the error that otherwise they would present if integrated in other way, including manufacturing and positioning errors of mounting brackets and/or other components and intermediate components that increase the tolerances chain and, therefore, the total error of the system, requiring a manual unitary calibration and periodic controls and recalibrations.
  • sensors (4) which can be integrated in the facet (1 ) of the invention include, for instance, tilt sensors, inclinometers or clinometers configured to measure the inclination of the facet’s reflection plane.
  • An inclinometer is a mechanical or electrical device designed to accurately measure changes in the inclination or rotation of a point located on the ground or in a structure. With this sensor (4), the inclination of the heliostat (2) will be measured.
  • the sensors (4) can further include a camera or an emitter of collimated beams will to measure the position of the heliostat (2) with respect to a remote receiver, such as a solar receiver tower.
  • the camera can also be assisted by software/hardware implementing artificial vision functionalities, preferably configured to identify specific points of reference at the remote receiver, or by the emission of collimated radiation that can detected by a corresponding sensor in the receiver, respectively.
  • the facet (1 ) can further comprise an integrated photovoltaic panel (5), configured for receiving solar radiation and generating enough energy to power up the solar concentrator (2) for its operation, making it autonomous and eliminating the need for power wiring in the solar field.
  • an integrated photovoltaic panel (5) configured for receiving solar radiation and generating enough energy to power up the solar concentrator (2) for its operation, making it autonomous and eliminating the need for power wiring in the solar field.
  • Figure 4 shows a view of a facet (1 ) according to Figure 3, where the sensors (4) and the housing (9) at the intermediate layer (8) are shown in further detail.
  • the facet (1 ) preferably also comprises a plurality of profile strips (8’) which are arranged at the sides of the facet (1 ), for providing further insulation, closing and/or support means to the intermediate layer (8) thereof.
  • the facet (1 ) further comprises an integrated grid for thermal dissipation (not shown in the figures) which is fixed to the surfaces of the photovoltaic panel (5) and prevents potential decreases in the performance thereof, due to the increase in temperature of the photovoltaic cells.
  • an integrated grid for thermal dissipation (not shown in the figures) which is fixed to the surfaces of the photovoltaic panel (5) and prevents potential decreases in the performance thereof, due to the increase in temperature of the photovoltaic cells.
  • heat dissipation can be carried out through a plurality of channels or holes (5’) arranged at the inner region of the photovoltaic panel (5), by removable inserts or it can be mechanically produced after the manufacturing process of the facet (1 ).
  • the facet (1 ) of the invention is preferably manufactured by setting an arrangement of sandwiched layers, comprising a front layer (6) which integrates the reflective surface (3) of the facet (1 ), a rear layer (7) which is used as closure, insulation and/or support means of the internal elements of the facet (1 ), and an intermediate layer (8) comprising one or more housings (9, 9’) configured to allocate the integrated sensors (4) in the facet (1 ), as well as, optionally, the photovoltaic panel (5).
  • the integrated elements such as the sensors (4) or the photovoltaic panel (5) are covered totally or partially by the front layer (6) of the facet (1 ).
  • the front layer (6) of the facet (1 In this way, it is possible to insulate said elements from the outside, reducing risks of malfunction or errors of operation associated with their exposure to the environment.
  • the above-mentioned embodiment also offers an extremely compact and robust solution, as well as a reduction of both installation and maintenance complexity, thus simplifying the structure of the solar concentrator (2), reducing its mechanical requirements and eliminating the need for high accuracy and stiffness foundations or auxiliary structures.
  • the facet (1 ) can be manufactured achieving high rigidity values, preferably equal or greater than 200 Pa/mrad RM s, and a spherical curvature with high optical quality, with form errors preferably equal or below 0.65 mrad.
  • the front layer (6) comprises a reflective mirror having a thickness preferably comprised between 0.95 mm and 2.00 mm.
  • the facet (1 ) is integrated into a solar concentrator (2) preferably configured for two-axis tracking and, more preferably, said solar concentrator (2) being a heliostat ( Figures 1-2).
  • the solar concentrator (2) represents thus a further object of the present invention, and preferably comprises:
  • control unit (1 1 ) of the solar concentrator (2) preferably arranged at the pedestal (10); - a drive system (12) or set of systems configured to confer the solar concentrator (2) two-axes (for example, zenithal and azimuthal) rotation capacities.
  • the solar concentrator (2) comprises a wireless communication system, eliminating the need for communications wiring in the solar field.
  • this communication system will be integrated into the control unit (1 1 ) of the solar concentrator (2).
  • the solar concentrator comprises a system of electrical energy storage, allowing it to continue operating and communicating even when the photovoltaic panel (5) integrated in the facet (1 ) are not generating electricity.
  • said storage system will be integrated into the control unit (11 ) of the solar concentrator (2).

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • General Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Photovoltaic Devices (AREA)
  • Mounting And Adjusting Of Optical Elements (AREA)

Abstract

L'invention concerne une facette autonome et autoportante (1) pour un concentrateur solaire (2), qui intègre un ou plusieurs capteurs (4) ainsi que, éventuellement, un module de puissance photovoltaïque (5). Ladite facette (1) est conçue de telle sorte que les temps et les coûts d'installation et de maintenance soient réduits au minimum par rapport à d'autres facettes connues, en plus d'être adaptables à toute technologie d'héliostat, en raison de la simplicité structurelle de ses composants. L'invention concerne également un concentrateur solaire autonome (2) comprenant un socle (10) en tant que support structural principal ; une unité de commande de concentrateur (11) ; un système d'entraînement (12) conçu avec des capacités de rotation zénithale et/ou azimutale ; et la facette autonome et autoportante (1) décrite.
PCT/EP2018/070698 2018-07-31 2018-07-31 Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette WO2020025107A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/EP2018/070698 WO2020025107A1 (fr) 2018-07-31 2018-07-31 Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette
MA52155A MA52155B1 (fr) 2018-07-31 2018-07-31 Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette
CN201880098201.6A CN112930462B (zh) 2018-07-31 2018-07-31 用于太阳能聚光器的自主刻面和包括所述刻面的太阳能聚光器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2018/070698 WO2020025107A1 (fr) 2018-07-31 2018-07-31 Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette

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WO2020025107A1 true WO2020025107A1 (fr) 2020-02-06

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112600498A (zh) * 2021-03-02 2021-04-02 江苏曦日新能源科技有限公司 一种远程可调光伏系统及其调节方法
CN114877865A (zh) * 2022-04-13 2022-08-09 山东电力建设第三工程有限公司 一种应用于大镜面上的带电伴热功能的高精度倾角仪

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005098327A1 (fr) 2004-03-30 2005-10-20 Solar Hytech Co., Ltd. Heliostat et procede de controle de celui-ci
US20080011288A1 (en) 2006-07-14 2008-01-17 Olsson Mark S Solar Collection Apparatus and Methods Using Accelerometers and Magnetic Sensors
US20080236568A1 (en) * 2007-03-30 2008-10-02 Kevin Hickerson Heliostat with integrated image-based tracking controller
US20090249787A1 (en) * 2006-11-13 2009-10-08 Deutsches Zentrum Fuer Luft- Und Raumfahrt E. V. Method for controlling the alignment of a heliostat with respect to a receiver, heliostat device and solar power plant
US20100252024A1 (en) * 2009-03-18 2010-10-07 Convery Mark R System and Method for Aligning Heliostats of a Solar Power Tower
US20100300510A1 (en) 2007-07-23 2010-12-02 Brightsource Industries (Israel), Ltd. Solar energy systems with reflecting and photovoltaic conversion means
WO2011117710A1 (fr) * 2010-03-25 2011-09-29 Luca Belloni Élément architectural photovoltaïque, en particulier pour recouvrir des surfaces
ES2393095A1 (es) 2011-02-21 2012-12-18 Centro De Investigaciones Energéticas, Medioambientales Y Tecnológicas (Ciemat) Concentrador solar autónomo con almacenamiento eléctrico mediante condensador y su método de funcionamiento.
EP2639525A1 (fr) * 2012-03-13 2013-09-18 Termopower S.L. Facette d'héliostat et son procédé de fabrication
EP2940400A1 (fr) * 2012-12-26 2015-11-04 Abengoa Solar New Technologies, S.A. Procédé de détermination de la correction d'erreurs de suivi de la plate-forme d'un suiveur solaire, unité centrale conçue pour la mise en oeuvre dudit procédé et suiveur solaire comprenant ladite unité centrale
WO2018069558A1 (fr) * 2016-10-10 2018-04-19 Fundación Cener-Ciemat Miroir pour réflecteur solaire, procédé d'assemblage de et système de gestion de miroirs dans un champ solaire
EP3367139A1 (fr) * 2017-02-28 2018-08-29 Marco Antonio Carrascosa Perez Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2008340000B2 (en) * 2007-12-21 2011-11-24 Agc Glass Europe Solar energy reflector
AU2013317707B2 (en) * 2012-09-22 2017-03-09 Solar Sure Pty Ltd An improved apparatus for concentrating solar energy
CN204830520U (zh) * 2015-07-23 2015-12-02 王斌 群组控制太阳能高温热发电集热控制系统
CN205536605U (zh) * 2016-03-31 2016-08-31 苏州久晶光电科技有限公司 一种反射聚光太阳能发电站
CN107437923A (zh) * 2017-09-28 2017-12-05 江苏大力城电气有限公司 一种具有自动清洁和姿态检测功能的单轴跟踪支架

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005098327A1 (fr) 2004-03-30 2005-10-20 Solar Hytech Co., Ltd. Heliostat et procede de controle de celui-ci
US20080011288A1 (en) 2006-07-14 2008-01-17 Olsson Mark S Solar Collection Apparatus and Methods Using Accelerometers and Magnetic Sensors
US20090249787A1 (en) * 2006-11-13 2009-10-08 Deutsches Zentrum Fuer Luft- Und Raumfahrt E. V. Method for controlling the alignment of a heliostat with respect to a receiver, heliostat device and solar power plant
US20080236568A1 (en) * 2007-03-30 2008-10-02 Kevin Hickerson Heliostat with integrated image-based tracking controller
US20100300510A1 (en) 2007-07-23 2010-12-02 Brightsource Industries (Israel), Ltd. Solar energy systems with reflecting and photovoltaic conversion means
US20100252024A1 (en) * 2009-03-18 2010-10-07 Convery Mark R System and Method for Aligning Heliostats of a Solar Power Tower
WO2011117710A1 (fr) * 2010-03-25 2011-09-29 Luca Belloni Élément architectural photovoltaïque, en particulier pour recouvrir des surfaces
ES2393095A1 (es) 2011-02-21 2012-12-18 Centro De Investigaciones Energéticas, Medioambientales Y Tecnológicas (Ciemat) Concentrador solar autónomo con almacenamiento eléctrico mediante condensador y su método de funcionamiento.
EP2639525A1 (fr) * 2012-03-13 2013-09-18 Termopower S.L. Facette d'héliostat et son procédé de fabrication
EP2940400A1 (fr) * 2012-12-26 2015-11-04 Abengoa Solar New Technologies, S.A. Procédé de détermination de la correction d'erreurs de suivi de la plate-forme d'un suiveur solaire, unité centrale conçue pour la mise en oeuvre dudit procédé et suiveur solaire comprenant ladite unité centrale
WO2018069558A1 (fr) * 2016-10-10 2018-04-19 Fundación Cener-Ciemat Miroir pour réflecteur solaire, procédé d'assemblage de et système de gestion de miroirs dans un champ solaire
EP3367139A1 (fr) * 2017-02-28 2018-08-29 Marco Antonio Carrascosa Perez Facette autonome pour concentrateurs solaires et concentrateur solaire comprenant ladite facette

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112600498A (zh) * 2021-03-02 2021-04-02 江苏曦日新能源科技有限公司 一种远程可调光伏系统及其调节方法
CN114877865A (zh) * 2022-04-13 2022-08-09 山东电力建设第三工程有限公司 一种应用于大镜面上的带电伴热功能的高精度倾角仪

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