WO2022248305A1 - Dispositif de production d'énergie solaire flottant - Google Patents

Dispositif de production d'énergie solaire flottant Download PDF

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Publication number
WO2022248305A1
WO2022248305A1 PCT/EP2022/063426 EP2022063426W WO2022248305A1 WO 2022248305 A1 WO2022248305 A1 WO 2022248305A1 EP 2022063426 W EP2022063426 W EP 2022063426W WO 2022248305 A1 WO2022248305 A1 WO 2022248305A1
Authority
WO
WIPO (PCT)
Prior art keywords
solar energy
energy generation
floating
generation device
floating body
Prior art date
Application number
PCT/EP2022/063426
Other languages
German (de)
English (en)
Inventor
Peter Hakenberg
Original Assignee
Paxos Consulting & Engineering GmbH & Co. KG
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 Paxos Consulting & Engineering GmbH & Co. KG filed Critical Paxos Consulting & Engineering GmbH & Co. KG
Publication of WO2022248305A1 publication Critical patent/WO2022248305A1/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
    • 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
    • F24S20/00—Solar heat collectors specially adapted for particular uses or environments
    • F24S20/70—Waterborne solar heat collector modules
    • 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

Definitions

  • the invention relates to a floating solar energy harvesting device with a floating body carrying a solar energy harvesting element.
  • Solar energy is often generated by photovoltaics, i.e. a direct conversion of light energy, mostly from sunlight, into electrical energy using solar cells and is a widespread technology for using solar radiation.
  • the solar radiation hits a photovoltaic module with solar cells. These convert the energy of sunlight into electrically usable energy.
  • the conversion of solar energy into electrically usable energy is well known and will not be explained in detail.
  • Devices for generating solar energy are often found on roofs or open spaces, for example fields or unused land areas. Relatively little power is currently installed on water surfaces, which is mainly due to the fact that the alignment of such devices is difficult due to the water movements. For this reason there are non-floating installations that are firmly founded underground, for example the sea or river bottom. However, the manufacture and installation of such devices are complex and expensive.
  • Floating devices are also known, but they have also not been able to establish themselves.
  • EP 3 263 439 A1 describes such a floating device with a number of photovoltaic modules which are connected to one another.
  • Their production is also complex and costly, and in particular it is extremely difficult to align the photovoltaic panels optimally to the sun over the long term. This is made even more difficult by bodies of water that are exposed to tides.
  • the object of the present invention is to create a floating solar energy generation device that avoids the described disadvantages of the prior art as possible, but at least reduces them.
  • the proposed device should be simple and inexpensive to produce bar.
  • the achievable efficiency of energy generation should be as high as possible despite this.
  • the object is solved by a floating solar energy generation device with the features of independent patent claim 1 . This is characterized in that the floating body
  • the solar energy generation device is fixed in the X and Y directions, the Z direction is regulated via the floating body.
  • the floating body allows a balancing movement of the water.
  • the arrangement of a mast for fastening the solar energy generation element is particularly suitable.
  • the solar energy harvesting element is spaced apart from an upper side of the floating body by the mast, which is also advantageous because of possible damage from the water.
  • In the course of the mast is between the float and the solar energy harvesting element
  • a rigid, vertically fixed attachment structure for example a pole made of a suitable resistant and rigid material, is particularly suitable as the ground attachment means.
  • a chain or a steel cable can also be used, which results in a possibly unwanted freedom of movement of the floating body in its horizontal swimming plane.
  • the ground attachment is not fixed medium to the bottom of the water, but can float up together with the floating body.
  • the bottom attachment means is fixed, for example, by means of steel cables which are laid on the bottom of the water and are preferably connected to the free end of the bottom attachment means facing the bottom of the water. It has been shown that attachment is advantageous when the floor attachment means in the crossing point of two is connected to these two by crossing steel cables. Due to their length, the steel cables can lift off the bottom of the water when the float floats up. The control in the Z direction is therefore via the floating body, which rises or sinks together with the ground fasteners. The distance between the floating body and the free end of the bottom facing the bottom of the water remains the same.
  • the floating body can also be fixed to the post in such a way that it can be moved along the post, for example as a function of the changing water level.
  • the float may have an opening through which the pole extends. The opening is large enough to allow the float to float unhindered as the water level rises or sink as the water level falls.
  • an eyelet attached to the side of the floating body, through which the pole extends can also be provided.
  • the post can, for example, be screwed into the bottom of the water or concreted into it, steel cables are then not necessary for fastening.
  • the described movability along the ground fastening means designed as a pole can also be combined with the use of an anchor chain or a steel cable as ground fastening means, in which case a lateral drifting away of the floating body is possible.
  • the floor attachment means can also be designed to be variable in length.
  • a ground fastening means designed as a rope or chain is guided over a deflection means arranged on the bottom of the water and extends from there to a drive device, which is arranged either on land or, for example, on a stationary pontoon provided for this purpose. It is thus possible to change the length of the ground fasteners and thus the distance between the solar energy generation device and the bottom of the water. This can be useful if the solar energy generation device is arranged in egg nem body of water whose water level fluctuates greatly, for example as a result of the season. The rotational freedom of movement of the solar energy generation device about a horizontal X-direction is guaranteed by the floating body, which can pivot by corresponding movement about the X-axis of the solar generation device.
  • At least one drive means is provided, via which the floating body can be actively pivoted about its horizontal axis Y-Y.
  • at least one traction device attached to the solar extraction device is provided above the water surface, which is also connected to a drive device that is arranged on land or on a stationary pontoon.
  • a tilting angle of the vertical axis of the solar energy production device is changed by rotation about the Ho zontalachse Y-Y to the perpendicular, which can then be determined as desired, in particular depending on the position of the sun.
  • the pivot point of the traction device must be arranged below the pivot point of the traction device on the solar energy generation device, ie as close as possible to or even below the surface of the water.
  • two traction devices are provided, which are spaced apart from one another in the horizontal direction and are connected to the solar energy generation device. If both traction devices are actuated simultaneously, a rotational movement takes place, i.e. the solar energy generation device tilts around the horizontal Y-axis.
  • the solar energy generation device can be rotated about its vertical axis Z-Z. Either both traction devices pull in the same direction (rotation around the Y axis) or they pull in the opposite direction (rotation around the Z axis).
  • it can also be sufficient to release one of the traction means and to pull the other.
  • the solar energy generation element by up to approximately 35°, preferably 40°, with respect to the vertical via the traction means by rotation about the Y-axis.
  • the pivoting angle between the vertical axis ZZ of the solar energy generation device, which essentially runs along the mast, and the plumb or vertical can be effected by pivoting or by tilting the entire Solarenergygewin voltage device.
  • the floating body carries and stores the solar energy generating element completely and also enables mobility in the cardinal direction and in the azimuth direction. As a result, complex and cost-intensive mechanical bearings are avoided.
  • the azimuth is the angle between the south vector as a reference vector and the actual alignment of the solar energy generation element in the horizontal plane. In the northern hemisphere, the azimuth angle corresponds to the directions 180° north, 270° east, 0° south and 90° west. In the southern hemisphere, the azimuth angle corresponds to 0° north, 90° east and 180° south and 270° west.
  • traction means can only be provided on one side of the solar energy generation device, but advantageously these also extend in the opposite direction of the solar energy generation device in order to allow the solar energy generation device to be pivoted out of the vertical in two opposite directions. So either four traction devices can be provided, two of which extend in opposite directions, or only two traction devices can be provided, which extend over the floating body or the solar energy generation device, so to speak, with the solar energy generation device fixed to the both traction means is connected. It is thus possible to change the position of the solar energy generation device by moving the traction means.
  • a crossbar is provided on the mast, on which the traction means are attached at a distance from one another. The distance between the transverse beam and the upper side of the floating body can also influence the possible tilting angle of the solar energy generation device that can be achieved.
  • the fastening of the floating body is designed in such a way that the floating body can pivot out of the vertical and around the horizontal axis YY. This can, for example, through a correspondingly shaped opening in the Floating body or in the attachment eyelet for the post.
  • a suitable swivel joint can also be provided between the floating body and the vertical floor attachment means, which swivel joint enables the floating body to be pivoted about at least its Y-axis.
  • the pull of the traction means also has a corresponding effect on the bottom attachment means, so that these are also tilted or pivoted out of the vertical can.
  • the traction means are adjusted by appropriate drive devices that are arranged on board the floating solar energy generation device.
  • the traction means are only fastened on land or to the stationary pontoon, while the corresponding means for changing the length of the traction means, for example motor-driven spindles, are on board the floating solar energy generation device.
  • the motor-driven drive devices are driven by the energy obtained by the solar energy generation element.
  • the rotation of the floating body or the solar energy generation device about its vertical axis Z-Z can also be effected by motor drives, for example propellers or jet nozzles, as an alternative or in addition to the traction means.
  • motor drives for example propellers or jet nozzles
  • the energy required for this can also be provided directly by the solar energy generation element, for example.
  • the solar energy generation device can be further optimized if the solar energy generation element can be moved relative to the floating body or relative to the mast.
  • this can also be designed to be pivotable or rotatable about a horizontal axis YY and/or the vertical axis ZZ.
  • the drive can take place via other traction means, but also by electric motors, in which case the energy required for this can also be provided directly by the solar energy generation element.
  • the electrical conduction of the energy gained by the solar energy generation elements is preferably carried out via a ground cable laid at the bottom of the body of water, but a floating cable can also be used as an alternative.
  • the entire movement of the solar energy generation device is advantageously processor-controlled and takes place fully automatically.
  • the calculation of the optimum orientation of the solar energy generation element and the associated movement by the corresponding drive means can take information such as the position of the sun, water level and wind speed into account.
  • the solar energy generation device according to the invention is particularly suitable for joint use of several solar energy generation devices that are connected to one another and are preferably also moved or controlled together. Thus, a cost-effective provision of high-performance solar energy generation parks can be realized.
  • Fig. 2 the solar energy generation device from Fig. 1 in side view
  • Fig. 3 several interconnected solar energy generation devices in side view
  • Fig. 4 the interconnected solar energy generation devices from Fig. 3 in front view
  • Fig. 5 several rows of interconnected solar energy generation devices from above.
  • FIGS 1 to 5 show an embodiment of a floating solar energy generation device 20. This has the essential components a floating body 22 and a solar power generation element 24 attached thereto.
  • the solar energy generation element 24 is formed by a photovoltaic module, which converts solar energy into electrically usable energy.
  • the solar energy generation element 24 is connected to an upper side 28 of the floating body 22 via a mast 26 .
  • the mast 26 is centrally, ie in the middle, net angeord on the upper side 28 of the floating body 22 .
  • the mast 26 has a transverse bar 30 which is arranged between the upper side 28 and the solar energy generation element 24 .
  • the cross bar 30 is aligned essentially horizontally, i.e. parallel to the surface of a body of water 32.
  • a bottom attachment means 34 can be seen, via which the floating body 22 is held on the bottom 36 of the body of water.
  • the bottom attachment means 34 is designed as a pole.
  • an anchoring device 42 provided on the bottom of the water 36 is also shown, formed by steel cables which are connected to the solar energy generation device 20 coming from un ent directions.
  • the anchoring device 42 can also include a basic cable 38 via which the electrical energy generated can be derived.
  • the basic cable 38 can of course also be laid independently of the anchoring device 42 who the.
  • the steel cables can be pulled upwards from the floating body 22 together with the bottom attachment means 34 when the water level rises or there are strong water movements, whereby the movement in the Z-direction is regulated.
  • the post can also be fixed to the bottom of the water body 36 and prevented from floating up.
  • the pole then extends, for example, through a Publ opening in the floating body 22, which is large enough to allow the floating body 22 to float unhindered when the water surface 32 rises or when the water surface 32 sinks unhindered to allow it to sink.
  • the opening can also allow pivoting about the horizontal axis YY. The referenced directions are shown in FIG.
  • the ground attachment means 34 can also be designed, for example, as a rope or anchor chain, which limits the movement of the floating body 22 in the Z-direction depending on the length.
  • an anchor chain or a rope allows the floating body 22 to drift off to the side, which is not always desired.
  • the traction means 40 embodied as steel cables, enable a rotational movement of the floating body 22 and thus of the solar energy generation device 20 about the vertical axis Z-Z through selective traction.
  • the solar energy generation device 20 it is possible to pivot the solar energy generation device 20 out of the vertical by simultaneously pulling both traction means 40, so that the alignment of the solar energy generation element 24 with respect to the position of the sun can be adjusted.
  • Pivoting the vertical axis Z-Z of the solar energy generation device 20, which runs approximately along the mast 26, relative to the perpendicular is possible in that the floating body 22 is held on the bottom 36 of the water body via the bottom fastening means 34 and at the same time the traction means 40 are above the water surface 32, ie are arranged at a distance from the water surface 32.
  • the other ends of the traction means 40 are arranged below the transverse beam 30 or the attachment points of the traction means 40 on the solar energy generation device 20 .
  • the length of the traction means 40 can be changed, for example via drive devices (not shown), for example wound onto a cable winch.
  • the corre sponding drive devices are preferably arranged on land or on a stationary anchored, also floating pontoon.
  • the solar energy generation element 24 can also be designed to be additionally pivotable, in particular by means of a corresponding drive directly on the mast 26.
  • Figures 3 and 4 show an embodiment of the invention as a solar park with an arrangement of multiple solar energy generation devices 20 in a row. These are moved or adjusted together by traction means 40 extending along the row.
  • the floating bodies 22 are fastened to a common anchoring device 42 via the ground fastening means 34 .
  • the anchoring device 42 also contains the basic cable 38.
  • FIG. 5 shows several solar energy harvesting devices 20 in several of the rows shown in FIGS.
  • the steel cables of the anchoring devices 42 extend in the illustrated embodiment at right angles to each other.

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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 dispositif de production d'énergie solaire flottant (20) doté d'un corps flottant (22) servant de support à un élément de production d'énergie solaire (24). Le corps flottant (22) est caractérisé en ce qu'il comprend - un moyen de fixation sur fond (34) permettant une fixation sur un fond (36) d'une étendue d'eau, - au moins un entraînement rotatif par l'intermédiaire duquel le corps flottant (22) peut tourner autour de son axe vertical Z-Z, - au moins un moyen d'entraînement par l'intermédiaire duquel le corps flottant (22) peut pivoter autour de son axe horizontal Y-Y.
PCT/EP2022/063426 2021-05-27 2022-05-18 Dispositif de production d'énergie solaire flottant WO2022248305A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021113729.2 2021-05-27
DE102021113729.2A DE102021113729A1 (de) 2021-05-27 2021-05-27 Schwimmende Solarenergiegewinnungsvorrichtung

Publications (1)

Publication Number Publication Date
WO2022248305A1 true WO2022248305A1 (fr) 2022-12-01

Family

ID=82019809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/063426 WO2022248305A1 (fr) 2021-05-27 2022-05-18 Dispositif de production d'énergie solaire flottant

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DE (1) DE102021113729A1 (fr)
WO (1) WO2022248305A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61133673A (ja) * 1984-11-30 1986-06-20 Sanyo Electric Co Ltd 太陽電池システム
KR20110101508A (ko) * 2010-03-08 2011-09-16 주식회사 한국체인모터 내수면 태양광 추적 장치 및 그 방법
EP3263439A1 (fr) 2015-02-27 2018-01-03 Kyocera Corporation Dispositif flottant et dispositif de cellule solaire utilisable sur l'eau
CA3056108A1 (fr) * 2019-09-20 2021-03-20 Hakkers B.V. Convertisseur lumiere-energie destine a flotter sur l`eau
EP3800785A1 (fr) * 2019-10-04 2021-04-07 Fundación Tecnalia Research & Innovation Installation flottante de génération d'énergie photovoltaïque

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101492448B1 (ko) 2014-02-11 2015-02-11 백인남 수상 부유식 태양광 발전장치
CN104539225B (zh) 2014-12-31 2016-08-24 西安建筑科技大学 一种水上太阳能供电系统
MY201202A (en) 2019-01-18 2024-02-09 Univ Tenaga Nasional Modular floating solar apparatus
AU2020333991A1 (en) 2019-08-22 2022-03-24 Flotaics, Llc Floating solar system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61133673A (ja) * 1984-11-30 1986-06-20 Sanyo Electric Co Ltd 太陽電池システム
KR20110101508A (ko) * 2010-03-08 2011-09-16 주식회사 한국체인모터 내수면 태양광 추적 장치 및 그 방법
EP3263439A1 (fr) 2015-02-27 2018-01-03 Kyocera Corporation Dispositif flottant et dispositif de cellule solaire utilisable sur l'eau
CA3056108A1 (fr) * 2019-09-20 2021-03-20 Hakkers B.V. Convertisseur lumiere-energie destine a flotter sur l`eau
EP3800785A1 (fr) * 2019-10-04 2021-04-07 Fundación Tecnalia Research & Innovation Installation flottante de génération d'énergie photovoltaïque

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Publication number Publication date
DE102021113729A1 (de) 2022-12-01

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