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
  • 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
• • 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
  • F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
  • F24S30/425—Horizontal axis
• • 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
  • F24S2030/10—Special components
  • F24S2030/13—Transmissions
  • F24S2030/136—Transmissions for moving several solar collectors by common transmission elements
• • 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

Definitions

• the present invention relates to a linear solar installation comprising at least two follower support systems for solar collectors, and to a solar field integrating at least two parallel linear solar installations.
• the object of the invention lies in the field of follower support systems, otherwise called solar trackers, of the orientable type according to a single main axis of rotation, for a rotation that makes it possible to follow the sun during its elevation and its descent from east to west.
• a main axis of rotation extends substantially parallel to the ground on which the follower support system is anchored.
• Such tracking support systems are often connected in line (extending from north to south) in linear solar installations, and these linear solar installations are themselves duplicated to form a solar field that can integrate several tens, or even thousands of follower support systems.
• these documents describe a coupling in rotation between parallel linear installations by the establishment of connecting bars extending perpendicularly to the lines for connecting the mobile platforms to each other, and extending across and in the middle of the aisles lined by linear installations.
• These connecting bars are positioned between two platforms, in particular in the middle of horizontal beams, and therefore across the aisles, so that the torque exerted by the connecting bars on the beams can be sufficient to rotate each beam end-to-end.
• Such connecting rods are a real hindrance to the circulation of vehicles in these aisles, such as solar collector cleaning vehicles, personnel transport vehicles and maintenance and repair equipment, etc.
• the present invention aims to solve these disadvantages by proposing a linear solar installation of simple design and which offers the possibility of a circulation of vehicles in the aisles bordered by such facilities.
• each follower support system is orientable according to a single main axis of rotation with the follower support systems aligned on the same line with their principal axes of rotation substantially coincide, said solar installation being remarkable in that each follower support system comprises:
• a mobile structure comprising a support platform for the solar collectors rotatably mounted on the fixed structure along the main axis of rotation;
• a mechanical system for driving the mobile structure in rotation along the main axis of rotation said mechanical drive system comprising a mobile device mounted on the fixed structure remotely relative to the main axis of rotation, and a link member coupled to said mobile device and connected to said platform so that movement of said mobile device causes rotation of said platform via the link member;
• the installation further comprises an actuating system common to said follower support systems, said actuating system being coupled to their mechanical drive systems via a mechanical transmission device extending parallel to the main axis of rotation, said transmission device being coupled to the movable devices of the mechanical drive systems of each follower support system, so that the platforms are rotated concomitantly by said actuating system via the transmission device and mechanical drive systems.
• the installation is carried out from several follower support systems each having their own fixed structure, their own mobile structure with platform, and their own mechanical system for rotating the mobile structure; the synchronous rotation of the platforms being carried out by a single actuating system for the linear installation, this single actuation system being coupled to the different mechanical drive systems by a transmission device separate from the mobile structure and offset relative to the main axis of rotation, facilitating the installation and maintenance of the installation.
• This transmission device extends parallel to the main axis of rotation so as not to hinder the movement of vehicles in the adjacent aisles.
• the platform of the mobile structure of a follower support system may comprise one or more beams, the or each beam being parallel to the main axis of rotation.
• the platform may optionally include, by way of nonlimiting example, several crosspieces perpendicular to the axis of rotation and fixed on the or each beam.
• the solar collectors can of course be fixed directly on the beam or beams.
• main axes of rotation are substantially parallel to the ground on which the installation is anchored, and that these main axes of rotation are substantially coincidental on the same linear installation, in the sense that they can be totally confused when all the follower support systems are anchored on a flat ground without a gradient, but these main axes of rotation may be substantially inclined relative to each other when the follower support systems of the same installation are anchored on a ground slightly hilly.
• the platforms of the follower support systems are not directly connected to each other and are spaced from each other by a predefined space along the main axis of rotation.
• the actuation system is fixed on the fixed structure or on the mechanical drive system of one of the follower support systems, in particular on a central follower support system.
• the mobile device of the mechanical drive system of each follower support system is disposed below the corresponding platform, and the transmission device extends below the platforms of the follower support systems.
• the platform of each follower support system comprises a central beam rotatably mounted on the fixed structure along the main axis of rotation, and the connecting element of each mechanical drive system is fixedly mounted on said central beam, preferably near a rotation bearing of the central beam on the fixed structure.
• the transmission device comprises one of the devices chosen from the following list:
• the mechanical drive system of each follower support system is of the type comprising a ring gear sector meshing with a pinion, in particular of the worm type, said pinion being coupled in rotation with the device.
• the ring gear sector can be fixed directly to the beam.
• the ring gear sector can be fixed to a crossbar secured to the beams.
• the mechanical drive system of each follower support system is of the type comprising a deformable parallelogram mechanism comprising:
• each upper arm having a lower end hinged to an upper end of a lower arm to form first and second central hinges;
• a transmission arm having a first end pivotally coupled to the upper articulation along an axis parallel to the main axis of rotation, and a second end integral in rotation with the platform
• the transmission device is connected to the central articulations between the lower and upper arms to bring said central hinges closer together and away from each other, the transmission arm and the assembly (said deformable parallelogram assembly) integrating the lower arms and upper respectively forming the connecting element and the mobile device of the mechanical drive system.
• Such a solution is particularly advantageous in terms of robustness and cost, and has the advantage of having a particularly reduced wear of the component parts of the deformable parallelogram mechanism.
• Such a mechanical drive system is also advantageously possible on an independent follower support system, with its own actuating system.
• the actuating system is of the jack type and comprises a body fixed on one of the lower and upper arms at the first central articulation of a mechanical drive system of the one of the follower support systems, and a rod movable within the body and having an end attached to the second central hinge of said mechanical drive system.
• the transmission device is of the cable transmission type and comprises two cables respectively attached to the first and second central hinges of the mechanical drive systems of each follower support system.
• the mechanical drive system of each follower support system is of the type comprising a nut in which is engaged a threaded rod, said nut being pivotally mounted on the fixed structure via an axis perpendicular to the threaded rod.
• said threaded rod having a lower end rotatably coupled with the transmission device and an upper end coupled to a first end of a transmission arm via a ball joint, said transmission arm having a second opposite end rotatably integral with the platform, the transmission arm and the threaded rod respectively forming the connecting element and the mobile device of the mechanical drive system.
• the actuating system is of the rotary motor or jack type.
• the invention also relates to a solar field of the type comprising at least two linear solar installations, each linear solar installation comprising at least two follower support systems for solar collectors, wherein each follower support system is orientable along a single axis of rotation. main rotation and includes:
• a mobile structure comprising a support platform for the solar collectors rotatably mounted on the fixed structure along the main axis of rotation;
• a mechanical system for driving the platform in rotation along the main axis of rotation said mechanical drive system comprising a mobile device mounted on the fixed structure remotely relative to the main axis of rotation, and a connecting element coupled to said mobile device and connected to said platform so that movement of said mobile device causes rotation of said platform via the connecting element;
• the two solar installations are in accordance with the invention.
• the two facilities are independent in rotation, so that no obstacle hinders traffic in the driveway bordered by these two facilities.
• a second solar installation comprises a transmission device that rotates the mechanical drive systems of its follower support systems for synchronous rotation of the platforms of these follower support systems, said transmission device being coupled to the mobile devices of the mechanical systems driving each follower support system of said second solar installation;
• the network further comprises at least one connection between the transmission device of the first installation and the transmission device of the second installation, so that the platforms of the second installation are rotated by the actuating system of the second installation.
• first installation concomitantly with the platforms of the first installation, through the or each link between the two facilities.
• the two installations are dependent in rotation, with the actuation system of the first installation which ensures the rotation of the platforms of the two installations; we then speak of a pair of coupled installations.
• the rotation of the platforms of the first installation is transmitted to those of the second installation thanks to the or each link.
• FIG. 1 is a schematic perspective view of a linear solar installation according to a first embodiment of the invention
• FIG. 2 is a zoom view of zone II of FIG. 1;
• FIG. 3 is a zoom view of zone III of FIG. 2;
• FIG. 4 is a zoom view of the area IV of FIG. 2;
• FIG. 5 is a schematic perspective view of a solar field according to the invention incorporating several solar systems according to the first embodiment of the invention
• FIG. 6 is a diagrammatic perspective and partial view of a linear solar installation according to the first embodiment of the invention, with a variant in the transmission device;
• FIG. 7 is a schematic perspective and partial view of a linear solar installation according to the first embodiment of the invention, with another variant in the transmission device;
• FIG. 8 is a zoom view of part of FIG. 7;
• FIG. 9 is a schematic perspective and partial view of a linear solar installation according to a second embodiment of the invention.
• FIG. 10 is a zoom view of part of FIG. 9;
• FIG. 1 1 is a schematic perspective and partial view of a linear solar installation according to the second embodiment of the invention, with a variant in the transmission device in a first position of the platform;
• FIG. 12 is a zoom view of a portion of Figure 1 1;
• Figure 13 is a schematic perspective and partial view of the installation of Figure 1 1, in a second position of the platform;
• FIG. 14 is a zoom view of part of FIG. 13;
• FIG. 15 is a schematic perspective and partial view of a linear solar installation according to a third embodiment of the invention.
• FIG. 16 is a zoom view of the area X of FIG. 15;
• FIG. 17 is a schematic side view of part of the installation of FIG. 15.
• a linear solar installation 1 comprises several follower support systems 2 for solar collectors, where each follower support system 2 is orientable along a single main axis of rotation 20.
• the follower support systems 2 aligned on the same line with their main axes of rotation substantially merged, ready for mounting and installation on-site installation and ground defects ready (irregularities terrain, lack of flatness, etc.).
• Each follower support system 2 comprises:
• a mobile structure comprising a platform 22 for supporting the solar collectors integrating a central beam 23, the beam 23 being rotatably mounted on the fixed structure 21 along the main axis of rotation 20, inside two upper bearings 210 ( visible in Figures 3, 4, 6 and 7) supported by the fixed structure 21;
• the fixed structure 21 comprises two bases spaced from each other along the main axis of rotation 20 and each having two ground anchoring feet.
• the two bases of the fixed structure 21 each support an upper bearing 210, the beam 23 being rotatably mounted in these two bearings 210.
• the anchoring to the ground of the fixed structure 21 can be achieved by means of anchoring piles, preferably one pile per foot, and / or by means of a ballast.
• the fixed structure 21 may of course have other embodiments, including the shape of a pylon or a pole.
• the platforms 22, and therefore the beams 23, are not connected to each other, and the beams 23 of two neighboring support systems 2 are spaced from each other by a predefined space. It is of course conceivable to have at least two parallel beams 23, instead of a single beam 23.
• the mechanical drive system 24 comprises a sector of ring gear 240 meshing with a pinion 241 of the worm type.
• the pinion 241 is rotatably mounted on a bearing 242 fixed on the fixed structure 21 in a direction perpendicular to the main axis of rotation 20, where the bearing 242 consists of a stirrup with two parallel flanges supporting the pinion 241.
• the toothed ring sector 240 is fixed on the beam 23 and extends perpendicularly to the main axis of rotation 20 and thus to the beam 23.
• the rotation of the pinion 241 causes the rotation of the crown sector.
• the mechanical drive system 25 comprises a deformable parallelogram mechanism comprising
• each upper arm 251 having upper ends coupled together on an upper hinge 255 (of the universal joint type), each upper arm 251 having a lower end hinged to an upper end of a lower arm 250 to form first and second hinges; central units 253 between lower arms 250 and upper arms 251; and a transmission arm 252 having a first end pivotally coupled to the upper articulation 255 along a pivot axis parallel to the main axis of rotation 20, and a second end integral in rotation with the beam 23.
• the mechanical drive system 26 comprises a threaded rod 261 engaged in a nut 260, the nut 260 being pivotally mounted on the fixed structure 21 via a horizontal axis 264 perpendicular to the threaded rod 261.
• the threaded rod 261 has an upper end coupled to the beam 23 via a transmission arm 262. More specifically, the upper end of the threaded rod 261 is coupled to a first end of the transmission arm 262 via a ball joint connection 263.
• this transmission arm 262 has a second opposite end integral in rotation with the beam 23.
• the threaded rod 261 is moved up or down in the nut 260 which pivots on the axis 264 to follow the movement. so that it pushes upwards or pulls down the first end of the transmission arm 262, which rotates the beam 23 and thus the platform 22 in one direction or the other.
• the installation 1 further comprises an actuating system 3 common to all the follower support systems 2, to rotate their respective platforms 22 synchronously.
• This actuating system 3, of the motorized actuator type, is coupled to the mechanical drive systems 24, 25, 26 of all these follower support systems 2, via a mechanical transmission device 4 extending parallel to the beams 23. Actuation system thus acts on all mechanical drive systems 24, 25, 26 to rotate all platforms 22 of the same installation 1 at the same time.
• actuating system of the motorized actuator type, is coupled to the mechanical drive systems 24, 25, 26 of all these follower support systems 2, via a mechanical transmission device 4 extending parallel to the beams 23.
• Actuation system thus acts on all mechanical drive systems 24, 25, 26 to rotate all platforms 22 of the same installation 1 at the same time.
• the actuating system 3 consists of a rotary motor driving an output shaft in rotation, and the rotation of this output shaft causes the displacement of all the mechanical drive systems 24, 25, 26 via the transmission device 4, and thus causes the concomitant rotation of all the platforms 22 of the same installation 1.
• the rotary motor 3 is fixed on the fixed structure 21 of one of the follower support systems 2, and in particular on a central follower support system 2 as can be seen in FIG.
• the transmission device 4 is of the cable transmission type 40 and pulleys 41.
• one or more cables 40 loop are coupled to a pulley 41 rotatably connected to the output shaft of the rotary motor 3 and, as shown in Figure 3, this or these cables 40 are coupled to other pulleys 41 secured in rotation of the pinions 241 of the mechanical drive systems 24.
• two strands of the or each cable 40 are coupled to the pulleys 41 while, in the embodiment of FIG. single strand of the or each cable 40 is coupled to the pulleys 41 forming loops around them.
• the transmission device 4 is of the rotary shaft type 42 and the deflection mechanisms 43.
• the transmission device 4 comprises a rotary shaft 42, extending parallel to the beam 23 and the main axis of rotation 20 and driven in rotation about its axis by a rotary motor 3.
• This transmission device 4 further comprises angle mechanisms 43 composed each of a first pinion 431 integral with the rotary shaft 42 and a second pinion 432 meshing at right angles with the first pinion 431, where the second pinions 432 are integral in rotation with the pinions 241 of the mechanical drive systems 24.
• the actuating system 3 is of the hydraulic or electric cylinder type, and comprises a body 30 fixed on the deformable parallelogram mechanism 25, at a first central articulation 253 (the right one in the figures), and a rod 31 movable inside the body 30 and having an end fixed to the second central articulation 253 (the one on the left in the figures).
• the transmission device 4 is of the cable transmission type 44.
• a cable 44 that of the top in FIGS. 9 to 14 is attached to the first central articulation 253 of the deformable parallelogram mechanism 25, while another cable 44 (the lower one in FIGS. 9 to 14) is attached to the second central articulation 253.
• the cables 44 are attached to the corresponding joints 253 forming a return loop.
• the cables 44 are attached to the corresponding joints 253 by means of stirrups 45.
• the transmission device 4 is of the cable transmission type 40 and the pulleys 41.
• the transmission device 4 comprises one or more cables 40 in a loop which are coupled to pulleys 41 integral in rotation with the threaded rods 261 of the mechanical drive systems 26.
• FIG. 5 illustrates a solar field integrating several solar installations 1 according to the invention. It is conceivable to integrate only solar systems 1 according to the invention. However, in the embodiment illustrated in FIG. 5, solar systems 1 according to the invention, called first installations, are alternated with second installations 10 without an actuating system. These second installations 10 are almost identical to the first installations, except that they do not include an actuating system 3.
• the transmission device 4 of the first installation 1 is connected to the transmission device 4 of the second installation 10 via a link 5, in particular a rotary linkage shaft having a first end rotatably coupled to a pulley 41 of the transmission device 4 of FIG. the first installation 1, and a second end coupled in rotation to a pulley 41 of the transmission device 4 of the second installation 10.
• This connection 5 is advantageously but not necessarily disposed at the ends of the installations 1, 10.

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• Engineering & Computer Science (AREA)
• Sustainable Development (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical & Material Sciences (AREA)
• Sustainable Energy (AREA)
• Thermal Sciences (AREA)
• Physics & Mathematics (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Photovoltaic Devices (AREA)
• Conveying And Assembling Of Building Elements In Situ (AREA)
• Manipulator (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48224995

Family Applications (1)

Country Status (7)

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Citations (2)

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• 2013
  • 2013-02-05 FR FR1350975A patent/FR3001793B1/fr active Active
• 2014
  • 2014-02-04 WO PCT/FR2014/050203 patent/WO2014122391A1/fr active Application Filing
  • 2014-02-04 EP EP14706882.9A patent/EP2954267A1/fr not_active Withdrawn
  • 2014-02-04 MX MX2015009955A patent/MX2015009955A/es unknown
  • 2014-02-04 BR BR112015018605A patent/BR112015018605A2/pt not_active Application Discontinuation
  • 2014-02-04 CN CN201480007492.5A patent/CN105008819A/zh active Pending
  • 2014-02-04 US US14/765,733 patent/US20160013751A1/en not_active Abandoned

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Non-Patent Citations (1)

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