WO2022045893A1 - Procédé de fabrication d'une conception d'une installation photovoltaïque flottante - Google Patents

Procédé de fabrication d'une conception d'une installation photovoltaïque flottante Download PDF

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Publication number
WO2022045893A1
WO2022045893A1 PCT/NL2021/050531 NL2021050531W WO2022045893A1 WO 2022045893 A1 WO2022045893 A1 WO 2022045893A1 NL 2021050531 W NL2021050531 W NL 2021050531W WO 2022045893 A1 WO2022045893 A1 WO 2022045893A1
Authority
WO
WIPO (PCT)
Prior art keywords
floating
elements
connecting elements
support elements
indentation
Prior art date
Application number
PCT/NL2021/050531
Other languages
English (en)
Inventor
Vincent Daniel Gijsberthus VAN DAALEN
Original Assignee
Profloating B.V.
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 Profloating B.V. filed Critical Profloating B.V.
Publication of WO2022045893A1 publication Critical patent/WO2022045893A1/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
    • H02S20/00—Supporting structures for PV modules
    • 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 support elements preferably form mutually identical support modules, wherein the photovoltaic panels can protrude relative to the support modules.
  • the connecting elements likewise preferably form mutually identical modules, wherein the connecting elements need not necessarily be arranged in line between the support elements, but can instead also be arranged offset between the support elements.
  • the support elements and the connecting elements are preferably in each case manufactured from one piece of plastic.
  • a floating photovoltaic installation is for instance known from the European patent publication no. 3 336447.
  • a row of identical connecting elements (see figure 7 of the European patent publication) is mounted on either side of the support elements with the photovoltaic panels thereon.
  • the connecting elements are embodied as floaters in order to give the installation sufficient buoyancy.
  • the length of the connecting element is then for instance such that, in assembled state of the installation with photovoltaic panels, support elements and connecting elements, the support elements are held sufficiently far apart to prevent collision between the protruding panels and are held sufficiently close together for an effective use of water surface for photovoltaic energy conversion.
  • the length of a connecting element can for instance be greater than the length of a support element. Larger panels can thus be supported, wherein use can be made of standard dimensions of the support elements.
  • the scalable connecting elements then provide the flexibility.
  • the connecting elements take a solid form.
  • the connecting elements are particularly manufactured by means of injection moulding. It is hereby possible to manufacture connecting elements with different lengths cheaply and efficiently in flexible manner.
  • the connecting elements are preferably manufactured in a modifiable mould configured to modify the length of the connecting element.
  • the method then preferably further comprises the step of modifying the mould depending on the determined length of the panel.
  • the support elements preferably have predetermined dimensions and therefore can take a hollow form and be manufactured by blow moulding as described above.
  • the connecting elements are arranged on either side of the support elements.
  • Floating elements are preferably arranged between adjacent connecting elements and coupled thereto.
  • the floating elements and the connecting elements particularly form on either side of the support elements a path which can be walked on and which is configured for maintenance of the installation.
  • At least one floating element comprises side walls and an upper wall and lower wall which enclose a volume, wherein the upper wall and/or lower wall of the floating element comprises an indentation which extends from a surface of the wall to the opposite wall and which forms a cavity.
  • Arranging a floating element preferably comprises of placing the floating element on the water surface with the cavity directed toward the water. Arranging a floating element more preferably further comprises of displacing air from the cavity via the at least one opening. It is particularly when a low pressure is created in the cavity that the floating element can be prevented from being blown off the water surface, for instance in the event of strong wind.
  • arranging a floating element comprises of placing the floating element on the water surface with the cavity directed away from the water.
  • the cavity can then function as a container, among other things.
  • a plant is preferably arranged in the cavity. Any landscape pollution which may be caused by the photovoltaic installation can thereby be limited.
  • the invention likewise relates to a floating photovoltaic installation, comprising: photovoltaic panels, support elements configured to support photovoltaic panels arranged thereon, and connecting elements arranged between adjacent support elements and configured to mutually connect and hold at a mutual distance adjacent support elements, wherein dimensions of the connecting elements are determined in the factory depending on the degree to which the photovoltaic panels protrude relative to a contour of the support elements in order to hold adjacent photovoltaic panels at a mutual distance in mounted state.
  • An embodiment of the floating photovoltaic installation preferably comprises at least a first row of support elements with photovoltaic panels and a second row parallel thereto, with a row of connecting elements lying therebetween.
  • the at least two rows of support elements and the row of connecting elements are interrupted by a transverse row of connecting elements oriented perpendicularly thereto and forming a walkway.
  • the connecting elements in the transverse rows preferably lie adjacently of each other on their long side.
  • Electricity cables are preferably run from and to the photovoltaic panels via the transverse row of connecting elements.
  • a device for instance an electrical device such as a transducer or a transformer, to be placed in the transverse row and preferably be supported by an element, for instance a floating element such as said support element.
  • the electrical device is more preferably a junction box for generators.
  • At least one floating element comprises walls, wherein the walls of the floating element enclose a volume, wherein a wall of the floating element comprises an indentation which extends from a surface of the wall and which forms a cavity.
  • the volume of a floating element is preferably enclosed by side walls and an upper and lower wall, wherein the indentation which can form a cavity is situated in the upper and/or lower wall.
  • the cavity can be configured to contain a plant so that the floating element used in a floating photovoltaic installation can limit landscape pollution caused by the photovoltaic installation.
  • Such floating elements with plants can for instance be placed around a floating photovoltaic installation, wherein the floating elements moreover contribute to the buoyancy of the installation.
  • a floating element or a plurality of floating elements can also serve to protect the photovoltaic panels in the floating installation from for instance birds, who prefer the floating elements with plants over the photovoltaic panels or the support or connecting elements. By keeping birds away from the panels a greater generation of electric power by the photovoltaic installation can be realized. Maintenance costs of the installation can further be saved.
  • the floating element with a cavity formed by an indentation in a wall of the floating element is used to contain a plant in the cavity for the purpose of supporting the plant on water in floating manner that the indentation is preferably provided over a part of the indentation with at least one opening for feeding the plant from the water.
  • the indentation for instance has a tapering form from the wall toward the opposite wall.
  • the at least one opening is then for instance provided in a part of the indentation, wherein the indentation touches and/or is integral with the opposite wall over that part of the indentation.
  • the floating element is then preferably configured to be able to contain a layer of water in the cavity, wherein the layer of water preferably has a height of at least 1 mm and at most 10 cm, wherein the height is more preferably between 5 mm and 2 cm. More generally, it is preferred in further applications of the floating element for the indentation to be provided over a part thereof with an opening or passage through the floating element, a further example of which will be described hereinbelow.
  • the floating element as described above is however not limited to use in a floating photovoltaic installation as described above with the described connecting elements or a floating photovoltaic installation as such.
  • the floating element can also be used in other floating structures, for instance for the purpose of forming bridges, artificial islands, pontoons, jetties or piers, wherein such floating structures can be formed by connecting a plurality of floating elements as described above by means of attaching means suitable for this purpose.
  • the connecting element comprises in a direction, preferably the longitudinal direction, a groove for guiding one or more cables, for instance cables from and to photovoltaic panels in an installation on a water surface.
  • the groove allows cables to be run above the water surface in simple manner and prevents the cables from moving, sliding over the connecting elements and possibly ending up in the water when the installation sways along with waves over the water surface.
  • the connecting element can further comprise at least one opening for cooling of for instance cables above the water surface.
  • Such an opening extends between an upper and a lower surface of the connecting element, for instance from a surface of the connecting element which is directed toward the water surface, toward an opposite surface of the connecting element.
  • the opening can also extend from a surface of the connecting element which is directed away from the water surface, and toward a surface of the connecting element lying opposite thereto.
  • the opening can also create a passage through the connecting element, wherein the passage extends from a surface of the connecting element directed toward the water surface to a surface of the connecting element over which a cable lies, whereby cooling of the cable by the water surface is realized.
  • figure 1 shows an example of a configuration of the installation
  • figure 2 shows an example of a connecting element
  • figures 3 a and 3b show a schematic representation of installations with connecting elements of varying length
  • figures 4 and 5 show a schematic representation of several alternative configurations
  • figure 6 shows a connecting element with cables
  • figure 7 shows a floating element with a cavity and a plant therein
  • figure 8 shows schematically a cross-section of a floating element.
  • Figure 1 shows a configuration of a floating photovoltaic installation according to the invention, the installation comprising rows of photovoltaic panels 1, support elements 2 for supporting photovoltaic panels 1 arranged thereon, and connecting elements 3 for mutually connecting and holding at a mutual distance adjacent support elements 2.
  • Figure 1 further shows floating elements 4 which are arranged on adjacent connecting elements 3 and support elements 2, wherein the floating elements 4 and the connecting elements 3 form adjacently of a row of support elements 2 a path which can be walked on.
  • Figure 2 shows a connecting element 3 according to the invention, wherein the connecting element 3 comprises a body 31, wherein the connecting element further comprises attaching means 32 with which the body 31 can be attached to an adjacent support element.
  • the shown connecting element 3 takes a solid form and can be manufactured by means of injection moulding.
  • Figures 4 and 5 show schematically top views of several alternative configurations of the installation according to the invention.
  • the figures show schematically a photovoltaic panel 1 on a support element 2, connecting elements 3 and floating elements 4.
  • Figure 4 shows a configuration wherein an intermediate connecting element 3 lies between two successive support elements 2 in a row of support elements 2.
  • the connecting element 3 is provided on either side on sides of the support elements 2.
  • the connecting element 3 here not only depends in respect of length on a length of a photovoltaic panel 1, but in a width direction the connecting element 3 also depends on a dimension, for instance the width, of the panels 1 and/or the support elements 2.
  • Figure 5 shows particularly a configuration wherein two rows of support elements 2 which are adjacent in parallel are enclosed by parallel rows lying on either side and comprising connecting elements 3 and floating elements 4, wherein the rows lying on either side each form a path which can be walked on.
  • the adjacent rows of support elements 2 can be attached to each other by means of support elements 2 themselves.
  • the configuration shown in figure 5 makes it possible to provide a configuration which has been expanded in modular manner with a plurality of rows of photovoltaic panels 1, wherein an even greater relative water surface can be used for generating electricity because not every two adjacent rows of support elements 2 are separated by an intermediate row of connecting elements 3.
  • FIG. 6 shows a detail of a floating installation with floating elements 4 and a connecting element 3.
  • the floating elements 4 can also be support elements 2, and have fixing ears 41 at their corner portions.
  • Floating elements 4 are parallelepipedal and connecting element 3 is formed as a rectangular plate.
  • Connecting element 3 has at the comer portions fixing ears 32 with an opening for being attached to a nearby element 4.
  • the mutual attachment of floating elements 4 and/or connecting elements 3 takes place by placing fixing ears 32, 41 one over the other so as to align the openings of the fixing ears 32, 41 and by placing a fixing pin 5 through the openings in order to connect the fixing ears 32, 41 and thereby the elements 3, 4.
  • a connecting element 3 is connected on either side to floating elements 4.
  • Connecting element 3 is provided over the upper surface of connecting element 3 with a groove 33 for receiving cables 6 from and to for instance photovoltaic panels 1. The groove 33 ensures that movement of cables 6 is prevented.
  • Figure 7 shows a parallelepipedal floating element 4 with fixing ears 41 at corner portions.
  • Floating element 4 further comprises an opening which is closed by means of a cap 42.
  • An upper surface 43 of floating element 4 extends between the four corner portions 44 with fixing ears 41.
  • a cavity 45 extends from the upper surface 43 to an opposite lower surface 46 of the floating element 4 (see also figure 8), whereby the two walls 43, 46 are integral over a part 47 of the cavity 45.
  • Cavity 45 can be formed by an inward indentation of floating element 4.
  • the indentation has a tapering form from upper wall 43 toward the opposite lower wall 46.
  • the indentation over the integral part 47 is further provided with a passage 48 from the cavity 45 through lower surface 46.

Landscapes

  • Photovoltaic Devices (AREA)

Abstract

L'invention concerne un procédé de fabrication d'une conception d'une installation photovoltaïque flottante comprenant : des panneaux photovoltaïques (1), des éléments de support (2) conçus pour supporter les panneaux photovoltaïques disposés sur ceux-ci, et des éléments de liaison (3) destinés à être disposés entre des éléments de support adjacents et configurés pour se raccorder et se maintenir mutuellement à une distance mutuelle des éléments de support adjacents, les dimensions des éléments de liaison étant déterminées en usine en fonction du degré auquel les panneaux photovoltaïques font saillie par rapport à un contour des éléments de support afin de maintenir des panneaux photovoltaïques adjacents à une distance mutuelle à l'état monté.
PCT/NL2021/050531 2020-08-31 2021-08-31 Procédé de fabrication d'une conception d'une installation photovoltaïque flottante WO2022045893A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL2026386 2020-08-31
NL2026386 2020-08-31

Publications (1)

Publication Number Publication Date
WO2022045893A1 true WO2022045893A1 (fr) 2022-03-03

Family

ID=78536544

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2021/050531 WO2022045893A1 (fr) 2020-08-31 2021-08-31 Procédé de fabrication d'une conception d'une installation photovoltaïque flottante

Country Status (1)

Country Link
WO (1) WO2022045893A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114872849A (zh) * 2022-05-05 2022-08-09 阳光水面光伏科技有限公司 漂浮系统和漂浮式光伏电站

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016200258A1 (fr) * 2015-06-10 2016-12-15 Viscon B.V. Support flottant pour culture de plante sur l'eau, et procédé de culture de plante
US20160368577A1 (en) * 2013-12-16 2016-12-22 Ciel Et Terre International Floating support device for a photovoltaic panel
EP3336447A1 (fr) 2011-04-15 2018-06-20 Ciel et Terre International Dispositif support de panneau
US20200216149A1 (en) * 2017-09-18 2020-07-09 Ciel Et Terre International Equipment for producing a floating photovoltaic installation

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3336447A1 (fr) 2011-04-15 2018-06-20 Ciel et Terre International Dispositif support de panneau
US20160368577A1 (en) * 2013-12-16 2016-12-22 Ciel Et Terre International Floating support device for a photovoltaic panel
WO2016200258A1 (fr) * 2015-06-10 2016-12-15 Viscon B.V. Support flottant pour culture de plante sur l'eau, et procédé de culture de plante
US20200216149A1 (en) * 2017-09-18 2020-07-09 Ciel Et Terre International Equipment for producing a floating photovoltaic installation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114872849A (zh) * 2022-05-05 2022-08-09 阳光水面光伏科技有限公司 漂浮系统和漂浮式光伏电站

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