EP2577185A1 - Bati de support pour un module photovoltaique, ainsi que dispositif de poursuite pour une installation photovoltaique - Google Patents

Bati de support pour un module photovoltaique, ainsi que dispositif de poursuite pour une installation photovoltaique

Info

Publication number
EP2577185A1
EP2577185A1 EP10774129.0A EP10774129A EP2577185A1 EP 2577185 A1 EP2577185 A1 EP 2577185A1 EP 10774129 A EP10774129 A EP 10774129A EP 2577185 A1 EP2577185 A1 EP 2577185A1
Authority
EP
European Patent Office
Prior art keywords
drive means
support
driver element
supporting frame
support frame
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP10774129.0A
Other languages
German (de)
English (en)
Inventor
Hans-Peter Fischer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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
Priority claimed from PCT/EP2010/003164 external-priority patent/WO2011009508A2/fr
Application filed by Individual filed Critical Individual
Priority to EP10774129.0A priority Critical patent/EP2577185A1/fr
Priority claimed from PCT/EP2010/006063 external-priority patent/WO2011147437A1/fr
Priority to US13/684,701 priority patent/US20130075545A1/en
Publication of EP2577185A1 publication Critical patent/EP2577185A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/70—Arrangement of stationary mountings or supports for solar heat collector modules with means for adjusting the final position or orientation of supporting elements in relation to each other or to a mounting surface; with means for compensating mounting tolerances
    • 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
    • F24S30/452—Vertical primary axis
    • 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
    • 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
    • F24S2030/133—Transmissions in the form of flexible elements, e.g. belts, chains, ropes
    • 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
    • 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
    • F24S2030/19—Movement dampening means; Braking means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S25/00—Arrangement of stationary mountings or supports for solar heat collector modules
    • F24S25/10—Arrangement of stationary mountings or supports for solar heat collector modules extending in directions away from a supporting surface
    • 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 invention relates to a support frame for a photovoltaic module having the features of the preamble of patent claim 1 and a tracking device for a photovoltaic system with a plurality of such support frames.
  • the achievable energy output depends on the angle of incidence of the sun relative to the photovoltaic module, so that it is expedient to increase the energy yield to use facilities that track the photovoltaic modules of the system depending on the year or time changing sun position.
  • the vertical tracking should be mentioned, in which the photovoltaic module is tracked by a rotation of the module supporting support structure about an axis which is substantially vertical to the earth's surface, the sun's run.
  • a horizontal tracking is possible in such a way that the photovoltaic module is pivoted or inclined in a horizontal axis, so that ideally a right angle to the sun is guaranteed.
  • a plurality of support frames for a respective photovoltaic module are provided via a common drive means, in particular a cable, for transmitting an actuating movement of a drive motor jointly assigned to the support frames.
  • the rope is in each case around a driver element, which is designed as an approximately cylindrical drum, guided around and wraps around this.
  • CONFIRMATION COPY Support frames is that even with a variety of installed photovoltaic modules only one or a few motors are required.
  • the present invention seeks to provide a support frame and a tracking device, so that a reliable transmission of the actuating movement is ensured.
  • the support frame is designed for automatic vertical tracking of the photovoltaic module mounted in operation on the support frame. It comprises a support pole and a rotatably connected to the support pole and this surrounding, preferably cylindrical driver element. In the assembled state this is wrapped by a particular flexible drive means for transmitting a driving force. In order to ensure a possible slip-free connection between the drive means and the driver element is provided between the drive means and the driver element Reibbrems adopted effective.
  • a plurality of supporting frames are connected for vertical tracking via the common drive means.
  • the drive means is usually only loose, that is connected without fixed and positive connection with the driver element.
  • this is led around the driver element.
  • the entrainment element is in this case looped around by the cable in the manner of a loop, ie the cable is guided around the entrainment element at least one or more times.
  • the transmission of the driving force takes place here via the associated friction between the drive means and the driver element, without a positive connection is formed.
  • several 10 to, for example, 30 or 40 supporting frames are connected to one another via a common drive motor and via the common drive means.
  • the friction brake device is provided which increases the friction between the driver element and the drive means so that slip between the two elements is avoided.
  • the driver element for this purpose has a lateral surface which has structuring as a friction brake device.
  • this is the lateral surface with elevations and depressions, so for example provided radially projecting webs to increase the friction.
  • the lateral surface has at least one guide slot extending in the circumferential direction.
  • the driver element is located in this guide slot. Due to the incorporation of the guide slot, the cable is therefore no longer smooth in this area on the mantle surface, but instead extends straight over the length of the guide slot away. At the entrance and exit ends of the guide slot, the rope rests against edges, so that the friction is significantly increased and slippage is avoided.
  • the guide slot extends over an angle of rotation of more than 20 °, for example, and preferably more than 30 ° over the circumference of the driver element. The guide slot therefore covers a comparatively large circumferential angle, which has a positive effect on the desired high frictional force between the cable and the guide slot edges.
  • a guide element for guiding the drive means is provided in an expedient development. This is formed in particular by radially protruding from the lateral surface elements, such as guide webs, knobs or the like. By the guide element is therefore prevented that the driver element slides in the vertical direction along the lateral surface.
  • the drive means may therefore possibly run obliquely to the vertical axis and guided to the driver element.
  • the guide element in this case has a guide region converging to the friction brake device, so that the drive means is also supplied in an oblique course to the friction brake device, in particular the guide slot.
  • This is achieved for example by two opposing, converging or wedge-shaped and projecting radially from the lateral surface guide webs.
  • Two-axis tracking devices which in addition to the vertical tracking about a vertical axis and a horizontal tracking is provided about a horizontal axis, usually require a high design effort and / or separate servo motors for the two NachGermanterrorismen.
  • a high frictional force must be overcome by the drive.
  • the support frame is designed exclusively for automatic vertical tracking.
  • An automatic horizontal tracking in which the angle of inclination during the course of the day takes account of the position of the sun by a varying horizontal inclination is not provided.
  • the support frame has a support frame on which the respective photovoltaic module rests in the mounted state. This support frame is movably mounted about a horizontal pivot axis.
  • a defined horizontal angle of inclination can be fixed manually via the fixing device.
  • the fixing device for example, depending on the installation location (latitude) as optimal as possible horizontal inclination angle is set, preferably once during installation or commissioning of the system.
  • the fixing device in this case comprises a plurality of discrete locking settings for setting defined horizontal angles of inclination.
  • the fixing device comprises a linkage, which is arranged between the support mast and the support frame, and which has a variable attachment end, which can preferably be locked or fastened to the support mast at different positions in order to be able to adjust the different angles of inclination , In particular, this is arranged on the support mast a perforated plate.
  • the support frame comprises an adjusting device, via which the rotational orientation of different portions of the support mast are mutually adjustable, ie mutually reversible to each other can be fixed.
  • This adjustment is used to simplify the assembly or for easy readjustment in the course of operation.
  • the vertical tracking is done via a common drive motor, there is the problem that due to tolerances and play in the drive train, the individual photovoltaic modules occupy a different azimuth angle after installation of the common drive means, ie a different angle of rotation around the vertical axis.
  • the advantage is achieved that after installation of the system, if due to such play and tolerance effects, the vertical orientation between different support frames is not completely in sync, the vertical rotational position of individual support frames in a simple Way is adjustable without the support frame must be rotated in total with respect to an anchoring element.
  • the two sections of the support mast are preferably interconnected at the separation point via flanges.
  • At least one of the flanges has a slot guide, preferably curved along a circular path, for a fastening element such as a screw.
  • the flanges ensure easy assembly and high mechanical stability. Usually, it is provided that the drive for the vertical tracking on one of the two subregions, in particular the lower portion attacks.
  • the flange of the lower portion of the support mast forms an upper termination for the driver element, i. the separation point is arranged at the upper end of the driver element.
  • this flange preferably forms a cover, so that a closed assembly is formed. A storage area of the support mast on the footplate is thereby better protected.
  • a tracking device for a Photovoitaikstrom in which a plurality of such support frames are connected to each other via a common drive means, in particular rope.
  • the drive means is driven by a common drive for the exercise of an actuating movement for the support frames for vertical tracking.
  • the drive means is in this case frictionally guided around the driver elements, preferably these are fully or repeatedly wrapped by the drive means.
  • FIG. 1 is a support frame with photovoltaic module mounted thereon in a perspective view
  • FIG. 2 shows the support frame according to FIG. 1 in a side view
  • Fig. 3 is a rough simplified representation of a tracking device with several connected via a common drive means and driven by a common drive motor supporting frames.
  • FIG. 4 is a perspective enlarged view of the bottom-side portion of the support frame with a cylindrical, arranged around a support mast entrainment
  • FIG. 5 shows the elements according to FIG. 3 in a side view
  • Fig. 6 is a simplified side view of a driver with guide slot and guide elements and
  • FIG. 7 is a sectional view in the region of the driver for illustrating the adjusting device
  • the photovoltaic module 4 can again be composed of individual sub-modules which are electrically interconnected with one another.
  • the support frame 2 - as shown again in Fig. 2 - comprises a vertically extending support pole 6, which carries at its upper end a support frame 8, on which the photovoltaic module 4 is fixed.
  • the support frame 8 is in this case adjustable about a horizontal pivot axis 10 in its inclination. Spaced from the pivot axis 10, a strut 12 of the support frame 8 is arranged, on which a rod consisting of a rod 14 is rotatably mounted.
  • the linkage 14 is fixed with its lower end to the support pole 6.
  • a perforated plate 16 is attached to the support pole 6 in the embodiment.
  • the linkage 14 is in this perforated plate 16 by means of a fastener in unobstructed attachable different vertical positions.
  • the linkage 14 with the perforated plate 16 therefore forms a fixing device for manual adjustment of a horizontal angle of inclination of the support frame eighth
  • the support frame 2 has at its lower, bottom-side end a mounting foot 17, with which it is to be anchored to the ground.
  • a flange-like plate is provided for this purpose, which can be anchored via screws in the ground.
  • a driver element 18 is provided immediately above the mounting foot 17.
  • An adjusting movement namely a rotational movement about the vertical axis of the support mast 6, is exerted on the support mast 6 by means of a drive means 20 (see FIG.
  • a vertical tracking of the photovoltaic module 4 so a tracking in east-west direction allows. Due to the immediate arrangement near the bottom, the tilting moments exerted on the support frame 2 via the drive means 20 (with respect to the vertical) are kept low.
  • FIG. 3 shows a single-row arrangement with a total of five support frames 2, which are symbolized by the driver element 18.
  • the individual supporting frames 2 are connected to one another via the common drive means 20, in particular a cable (wire rope) and to carry out the vertical tracking, the rotational movement is synchronously transmitted to all driver elements 18 via the drive means 20.
  • the drive means 20 is in this case wrapped around each of the driver elements 18, ie, each driver element 18 rotates completely at least once.
  • a common drive 22, in particular electric motor is arranged, via which the actuating force is transmitted to the drive means.
  • the support frames 2 together with the drive means 20 and the drive 22 forms a tracking device for a vertical tracking of the individual photovoltaic modules.
  • the tracking is controlled according to the time of day.
  • a friction brake device is provided, which is formed in the embodiment as a circumferentially extending guide slot 24 which is introduced in a lateral surface 26 of the driver element designed as a hollow cylinder 18.
  • the configuration of the driver element 18 with the guide slot 24 can best be seen from FIGS. 3 to 5.
  • the guide slot 24 has, for example, a width of 5 to 10 mm and preferably extends over a rotational angle, for example in the range of 20 ° to 60 ° in the circumferential direction.
  • Fig. 5 shows a variant embodiment, wherein in addition to the guide slot 24 still guide elements 28 are arranged on the lateral surface 26. In the exemplary embodiment, these are arranged in the circumferential direction on both sides of the guide slot 24.
  • the respective guide element 28 is in this case formed by two opposite guide webs which protrude radially on the lateral surface 26 and define a guide region 30 between them. In the exemplary embodiment, this guide region 30 converges towards the guide slot.
  • the support mast 6 is rotatably arranged together with the driver element 18 on the mounting foot 17.
  • the fastening foot 17 has a support tube 34 which extends in the vertical direction and over which the hollow-cylindrical support mast 6 is slipped.
  • the support mast 6 itself is subdivided into two subregions 36A, 36B, which are connected to one another via a flange connection.
  • a fastening flange 38A, B is disposed on each of the subregions 36A, B, which in the exemplary embodiment are designed as radially projecting and, in particular, annular plates.
  • the two mounting flanges 38A, B and thus the two portions 36A, B are fastened to each other at different rotational positions.
  • a slot guide and fasteners are provided.
  • an adjusting device for the rotational adjustment of the two partial areas 36A, B is formed with each other. This adjustment device is used to simplify installation, at startup after the construction and the looping of the individual
  • the driver element 18 is formed in the manner of a hollow cylinder, which is non-rotatably connected via struts with the lower portion 36A.
  • the flange 38A of the lower portion 36A at the same time forms an upper cover of the hollow cylindrical driver element 18. Overall, a largely closed inner cavity is thereby created, in which in particular the bearing point of the support mast 6 rests protected.
  • both bearing sleeves are each arranged in the lower and upper regions of the support tube 34.
  • both bearing sleeves a kind of ring flange.
  • the support mast 6 is supported with its lower end, on which it also forms an annular flange, on this annular flange of the bearing sleeve, so that a rather flat contact is formed.
  • the bearing sleeves consist for example of an abrasion-resistant plastic or of a suitable metal.
  • a storm protection 40 is provided for the support mast 6 such that the support mast is secured in particular against an axial lifting of the mounting foot 17 with simultaneous rotatability.
  • this is an acting in the axial direction positive engagement between the mounting bracket 17 and the support mast 6, in particular its bottom-side flange is formed.
  • the storm protection 40 is in this case formed in a simple manner by a bent tab, which is fastened with its one end to the mounting bracket 17 and protrudes with its other end on the flange, in particular with a small axial distance.
  • the support frame 2 described here, as well as the tracking device described with reference to FIG. 3, are characterized overall by a simple structure and high operational reliability.
  • the simple structure is decisively coined, in particular, by the support frame 2, which is designed only for a single-axis, vertical automatic tracking system. It is also of particular advantage that a manual adjustment of the horizontal angle of inclination can be made via the fixing device, in order to ensure the highest possible solar yield despite the simplified structure.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un bâti de support pour un module photovoltaïque, ainsi qu'un dispositif de poursuite pour une installation photovoltaïque. L'invention vise à permettre une poursuite verticale fiable et sûre dans le cas d'une installation photovoltaïque comportant une pluralité de modules photovoltaïques (4) agencés sur un bâti de support (2) tout en réalisant en même temps une structure simple. A cet effet, chaque bâti de support (2) comporte selon l'invention un élément entraîneur (18), réalisé en particulier avec une forme cylindrique et entouré, dans la position montée, par un moyen d'entraînement (20) commun. Pour éviter un glissement entre le moyen d'entraînement (20) et l'élément entraîneur (18), il est prévu un système de frein à friction qui est réalisé en particulier par une fente de guidage (24) dans l'élément entraîneur (18).
EP10774129.0A 2010-05-25 2010-10-05 Bati de support pour un module photovoltaique, ainsi que dispositif de poursuite pour une installation photovoltaique Withdrawn EP2577185A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10774129.0A EP2577185A1 (fr) 2010-05-25 2010-10-05 Bati de support pour un module photovoltaique, ainsi que dispositif de poursuite pour une installation photovoltaique
US13/684,701 US20130075545A1 (en) 2010-05-25 2012-11-26 Supporting framework for a photovoltaic module and tracking device for a photovoltaic system

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/EP2010/003164 WO2011009508A2 (fr) 2009-07-20 2010-05-25 Dispositif d'asservissement pour une installation photovoltaïque et procédé de montage d'un tel dispositif d'asservissement
EP10774129.0A EP2577185A1 (fr) 2010-05-25 2010-10-05 Bati de support pour un module photovoltaique, ainsi que dispositif de poursuite pour une installation photovoltaique
PCT/EP2010/006063 WO2011147437A1 (fr) 2010-05-25 2010-10-05 Bâti de support pour un module photovoltaïque, ainsi que dispositif de poursuite pour une installation photovoltaïque

Publications (1)

Publication Number Publication Date
EP2577185A1 true EP2577185A1 (fr) 2013-04-10

Family

ID=47790639

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10774129.0A Withdrawn EP2577185A1 (fr) 2010-05-25 2010-10-05 Bati de support pour un module photovoltaique, ainsi que dispositif de poursuite pour une installation photovoltaique

Country Status (2)

Country Link
US (1) US20130075545A1 (fr)
EP (1) EP2577185A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8714768B2 (en) * 2012-05-31 2014-05-06 Larry Tittle Solar retrofit lighting system
DE202012103108U1 (de) * 2012-08-17 2012-09-10 Habdank Pv-Montagesysteme Gmbh & Co. Kg Tragkonstruktion für Solarmodule
US20150096165A1 (en) * 2013-10-09 2015-04-09 Cantsink Manufacturing, Inc. Attachment bracket
DE112016000529T8 (de) * 2015-01-30 2017-11-02 Nabtesco Corporation Plattenantriebsvorrichtung und Heliostat
CN115102489B (zh) * 2022-08-24 2022-11-22 杭州非德新能源科技有限公司 光伏板支撑装置
CN115459692B (zh) * 2022-10-31 2023-08-25 华电重工股份有限公司 光伏跟踪支架

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4169044B2 (ja) * 2006-04-27 2008-10-22 船井電機株式会社 回動装置及び回動装置を備えた映像表示装置
US20080100997A1 (en) * 2006-10-30 2008-05-01 Chun-Chieh Liao Monitor turnning device
US7836902B2 (en) * 2009-02-18 2010-11-23 Benson Tung Sunshade having base

Also Published As

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