WO2022043397A1 - Wave energy device for horizontally recovering wave energy on coastal seabeds - Google Patents

Wave energy device for horizontally recovering wave energy on coastal seabeds Download PDF

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Publication number
WO2022043397A1
WO2022043397A1 PCT/EP2021/073536 EP2021073536W WO2022043397A1 WO 2022043397 A1 WO2022043397 A1 WO 2022043397A1 EP 2021073536 W EP2021073536 W EP 2021073536W WO 2022043397 A1 WO2022043397 A1 WO 2022043397A1
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WIPO (PCT)
Prior art keywords
wave
foil
wave energy
movement
water
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Application number
PCT/EP2021/073536
Other languages
French (fr)
Inventor
Christian Carme
Original Assignee
Christian Carme
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Publication date
Application filed by Christian Carme filed Critical Christian Carme
Priority to EP21770147.3A priority Critical patent/EP4204677A1/en
Publication of WO2022043397A1 publication Critical patent/WO2022043397A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/707—Application in combination with an electrical generator of the linear type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention relates to a device for recovering wave energy from a train of waves originating from alternating forces with horizontal shear from the bottom.
  • wave energy it is understood the energy of the waves.
  • horizontal shearing it is understood opposing reciprocating forces which alternate on a substantially horizontal plane.
  • bottom it is understood that the recovery of the efforts is done on the bottom of the water near the ground and preferably very close to the coast.
  • the invention aims to recover a particular type of natural effort from the force of the waves which today are not addressed by any solution.
  • the invention is particularly aimed at recovering, when it is possible and profitable, the forces resulting from the horizontal displacements of the water flows when the waves pass near the bottom.
  • the invention also specifies the way to recover these forces by a particularly clever device.
  • SUBSTITUTE SHEET (RULE 26) pressure vertically above the passage of the wave. This pressure variation being recovered by various known means.
  • the present invention is aimed at recovering substantially horizontal forces as the waves pass. These efforts are little known and almost invisible. They are not yet worked on by any existing solution of the prior art. Indeed, it is little known that the movement of the waves, which are a train of waves that are visible on the surface, trigger a movement over the entire water column as the wave passes. This movement of water is for each water particle as the water passes, in the current terrestrial frame of reference, a circular then elliptical movement when approaching shallows. The addition of the circular or elliptical movement of each of the water particles ultimately forms a wave whose movement and manifestation are visible on the surface. The modeling of the movements of water particles has been the subject of scientific publications.
  • trajectory of a water particle to the passage of a wave wavelength.
  • this trajectory is closed and has the shape according to the depth of a circle or an ellipse.
  • the trajectory of a water particle approaches a circle, at the bottom level, in certain mathematical configurations which take into account the frequency of the wave of wave and the height of the water column between the level of the water and that of the bottom, the trajectory becomes elliptical and gradually flattens.
  • it will adopt a format of a very or even totally flattened ellipse, or for the particles at this altitude, a substantially horizontal movement back and forth from the flow of water.
  • This form of trajectory is found at a very specific depth and it depends in particular on the height of the water column and the undulatory frequency of the wave train.
  • the invention proposes a wave energy generator with horizontal recovery close to the bottom at the edge of the coast.
  • the recuperator consists of a foil, or hydrofoil, which is a well-known lift wing in boating, the holding shaft of which slides within an energy recovery device.
  • the foil wing which is crossed by the horizontal movements of the water and subjected to an alternately positive and negative lift effect and therefore oscillates around a position of equilibrium.
  • a vertical shaft therefore oscillates vertically and this movement of the shaft through the energy harvesting device is an electrical generator.
  • the means of generating electricity are known and use, for example, conductive windings with a transformation of mechanical energy into electromagnetic energy.
  • the position of the foil is calculated using a computer and optimized to maximize energy efficiency.
  • a main object of the invention is therefore to provide a wave energy recovery system which is easily industrializable, whose manufacturing cost is reasonable, whose maintenance is easy, whose duration of life is long, and whose energy efficiency is optimal.
  • a great quality of the invention is that the work of structural work for the installation and the maintenance and the sending of the energy on the networks is less expensive than the solutions of open sea, because the access close to the coast and of course much easier and closer than at sea.
  • An object of the invention is to be able to recover energy in almost all weather and wave conditions, wave amplitude, wave frequencies, wind, rain, water quality.
  • An object of the invention is to operate regardless of the orientation of the wave trains.
  • the invention by the use of a foil which is a symmetrical wing around its axis of oscillation is naturally oriented in front of the wave train to absorb its energy.
  • FIG. 1 represents a principle view of the device in its environment
  • FIG 2 represents a principle view of two trajectories of water particles
  • FIG 3 represents a front view of the invention in a so-called foil mode
  • FIG 4 represents a side view of the invention in a so-called foil mode
  • FIG 1 shows a principle view of the device in its environment with the water level (M), the water basin being preferably a sea or an ocean but can also be a lake or a river to little that waves are generated there.
  • the seabed (S) is at a height (H) below the water level. As the sea gets closer to the coast, the water height (H) drops.
  • the operators position the wave energy generator (10) to recover wave energy.
  • the wave motor (10) is positioned at the bottom of the water so as to capture a particular movement of the water particles from the bottom.
  • FIG 2 shows a principle view of two trajectories of water particles with a substantially circular shape for a surface water particle, which goes to a flattened ellipse for a bottom water particle.
  • the flattening of the ellipse responds to a mathematical formula which has as parameter in particular the wavelength of the waves, the amplitude of the waves, and the water height (H).
  • the object of the invention is to arrange the wave energy generator (10) at an altitude such that the trajectory of the water particles adopts an almost flat ellipse. At this altitude, the horizontal thrust effort in a back and forth movement will be maximum.
  • the invention aims to convert this horizontal thrust force into energy.
  • FIG 3 shows a front view of the wave power generator (10) in a so-called foil mode.
  • a base (15) anchored in the ground either by its gravity or by specific anchors, is arranged on the bottom.
  • Above the base (15) is flush with the foil wing (12) which is mounted on a shaft (13).
  • the shaft (13) is mounted below the center of gravity of the foil wing.
  • the foil wing seen from the front, is symmetrical.
  • the foil shaft (13) is mounted constrained to slide vertically with respect to the base (15) in a foil well (14).
  • the foil shaft is mounted free in angular rotation in the foil well (14). In this way, whatever the orientation of the wave flow, the foil orients itself like a weather vane facing the wave flow.
  • the foil wing is alternately pushed up and down.
  • the movement of the foil shaft (13) in vertical translation in the foil well (14) is recovered by known means which may be mechanical and/or electromagnetic. This movement is recovered and converted into electrical energy by a converter (17).
  • FIG 4 shows a side view of the wave power generator in a so-called foil mode. It is apparent that the foil wing has an airfoil that provides lift when the foil wing passes through a fluid. The movement of the foil wing shaft to which the vertical movement is transmitted is recovered by an energy recuperator, which transmits the electric current created through a wired network (18) which is connected to a power station which is positioned on a pontoon or on the ground above sea level. It is understood that the position of equilibrium ensured by a return or ballast mechanism positions the foil at a position of gravity equilibrium at the level where it will be positioned to take the maximum horizontal flow.
  • the equilibrium position of the foil under water is adjustable to achieve equilibrium on the vertical axis and generate an oscillatory movement around this position as the ebb and flow of water particles pass.
  • the foil's attack incidence is also adjustable to optimize the performance of lift and/or lack of lift efforts.
  • a computer controls a mechanical foil positioning device which positions the foil underwater to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of the bottom wave energy.
  • the top of the foil wing can be fitted with a vertical fin to counteract a weathervane effect.
  • the foil shaft (13) can be surrounded by a sock which will prevent grains of sand from disturbing and slowing down the oscillations.
  • the present invention is therefore indeed a wave train wave energy recovery device characterized in that it consists of a horizontal force sensor (12) by the bottom (S) near the coasts coming from the movement of the water particles in the passage of the wave trais which transcribes the forces captured into a vertical movement which is recovered and converted into electrical energy by a converter (17) housed under water in a base (15) connected by a wired network (18) to a plant above water level.
  • the present invention therefore relates to a wave train energy recovery device that the force sensor (12) is a horizontal foil wing mounted on a vertical shaft (13) which slides in vertical translation in a foil well (14).
  • the present invention therefore relates to a wave energy recovery device characterized in that a pilot computer according to the parameters of swell, geolocation and tide, a mechanical device for positioning the depth of attack of the foil and of its angle of incidence underwater to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of wave energy.
  • the present invention relates to a wave energy recovery device characterized in that a pilot computer according to the parameters of swell, geolocation and tide, a mechanical device for positioning the depth of attack of the foil and its angle of incidence under water to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of wave energy
  • the present invention relates to a wave energy recovery device characterized in that the converter supplies a boat battery for piloting and/or propulsion.
  • the present invention relates to a wave energy recovery device characterized in that in navigation, the movement of the force sensor (12) can be controlled, and the force sensor is then used as a foil to give lift to the boat.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

Device for recovering wave energy from a wave train, characterised in that a horizontal foil wing, located close to the shore on the sea bed, recovers the horizontal movement of the water particles as the wave trains pass and translates the forces captured into a vertical movement which is recovered and converted into electrical energy by a converter (17) housed underwater in a base (15) connected via a wired network (18) to a power plant above sea level.

Description

Titre de l’invention : Houlomoteur à récupération horizontale sur fonds côtiers. Title of the invention: Wave energy generator with horizontal recovery on coastal bottoms.
[0001] La présente invention concerne un dispositif de récupération d’énergie houlomotrice de train de vagues provenant d’efforts alternés à cisaillement horizontal par le fond. Par énergie houlomotrice, il est entendu l’énergie des vagues. Par cisaillement horizontal, il est entendu des efforts de va et vient opposés qui alternent sur une plan sensiblement horizontal. Par le fond il est entendu que la récupération des efforts se fait sur le fond de l’eau à proximité du sol et préférentiellement très proche de la côte. [0001] The present invention relates to a device for recovering wave energy from a train of waves originating from alternating forces with horizontal shear from the bottom. By wave energy, it is understood the energy of the waves. By horizontal shearing, it is understood opposing reciprocating forces which alternate on a substantially horizontal plane. By the bottom it is understood that the recovery of the efforts is done on the bottom of the water near the ground and preferably very close to the coast.
[0002] L’invention vise à récupérer un type particulier d’efforts naturels de la force des vagues qui aujourd’hui ne sont adressés par aucune solution. L’invention vise particulièrement à récupérer quand il est possible et rentable, les efforts provenant des déplacements horizontaux des flux d’eau au passage des vagues à proximité du fond. The invention aims to recover a particular type of natural effort from the force of the waves which today are not addressed by any solution. The invention is particularly aimed at recovering, when it is possible and profitable, the forces resulting from the horizontal displacements of the water flows when the waves pass near the bottom.
[0003] L’invention précise également la façon de récupérer ces efforts par un dispositif particulièrement astucieux. The invention also specifies the way to recover these forces by a particularly clever device.
[0004] En effet, l’art antérieur qui travaille à obtenir une énergie renouvelable à la base d’énergie houlomotrice issue de la force des vagues a pour l’instant uniquement adressé la récupération d’un certain type d'efforts provenant de l’énergie houlomotrice des vagues, à savoir par la récupération de son énergie cinétique de surface, avec plusieurs solutions qui existent pour absorber la variation d”énergie des flotteurs qui sont contraints par le passage des vagues. Sur le fond, avec un seul brevet, par la récupération de l’effort de pression vertical des vagues dû à la variation d’énergie potentielle qui se porte sur la colonne d’eau au passage des vagues au-dessus des récupérateurs. En bref, les seules solutions de l’art antérieur existantes pour récupérer de l’énergie houlomotrice des vagues portent sur des récupérateurs astucieux qui absorbent les variations d’énergie cinétique en surface des vagues et potentielle au fond de l’eau lors du passage de la vague. La récupération se fait, soit par le haut, soit par le bas, avec le principe d’une colonne d’eau qui applique une variation de [0004] Indeed, the prior art which works to obtain renewable energy based on wave energy from the force of the waves has so far only addressed the recovery of a certain type of effort from the wave energy, namely by recovering its surface kinetic energy, with several solutions that exist to absorb the energy variation of the floats that are constrained by the passage of the waves. On the bottom, with a single patent, by the recovery of the vertical pressure force of the waves due to the variation of potential energy which is carried on the water column as the waves pass above the recuperators. In short, the only existing prior art solutions for recovering wave energy from waves relate to clever collectors which absorb variations in kinetic energy at the surface of the waves and potential energy at the bottom of the water during the passage of the wave. The recovery is done either from the top or from the bottom, with the principle of a water column which applies a variation of
FEUILLE DE REMPLACEMENT (RÈGLE 26) pression à l’aplomb vertical du passage de la vague. Cette variation de pression étant récupérée par différents moyens connus. SUBSTITUTE SHEET (RULE 26) pressure vertically above the passage of the wave. This pressure variation being recovered by various known means.
[0005] Il existe notamment le brevet US 2009 / 025382 qui décrit des flotteurs qui récupèrent une énergie transversale de surface. Ces flotteurs ne viennent pas récupérer une énergie de mouvement horizontal par le fond. [0005] There is in particular US patent 2009/025382 which describes floats which recover transverse surface energy. These floats do not recover horizontal motion energy from the bottom.
[0006] Il existe le brevet WO 2010/126378 qui décrit la récupération par une aile de mouvement de marées qui sont continus sur plusieurs minutes et qui ne correspondent pas à des mouvements cycliques alternés rapides comme ceux du passage d’un vague. Et dont par ailleurs le dispositif est totalement inadapté à une récupération de mouvements cycliques à cisaillement horizontaux périodiques. [0006] There is patent WO 2010/126378 which describes the recovery by a wing of tidal movements which are continuous over several minutes and which do not correspond to rapid alternating cyclic movements such as those of the passage of a wave. And whose device is also totally unsuitable for recovering cyclic movements with periodic horizontal shear.
[0007] Il existe le brevet GB 2412 143 qui décrit une structure lourde par haute profondeur avec des ailes de récupération de mouvement de marées. A nouveau ces dispositifs ne décrivent pas de procédé de récupération par le fond près des côtes des trains de vagues qui s’échouent sur la cote. [0007] There is patent GB 2412 143 which describes a heavy structure at high depth with tidal movement recovery wings. Again, these devices do not describe a process for the recovery by the bottom near the coast of wave trains that run aground on the coast.
[0008] La présente invention vise elle à récupérer des efforts sensiblement horizontaux au passage des vagues. Ces efforts sont mal connus et quasi invisibles. Ils ne sont pas encore travaillés par aucune solution existante de l’art antérieur. En effet, il est peu connu que le mouvement des vagues qui sont un train d’onde qui sont visibles en surface, enclenchent un mouvement sur toute la colonne d’eau au passage de la vague. Ce mouvement d’eau est pour chaque particule d’eau au passage de l’eau, dans le référentiel terrestre courant, un mouvement circulaire puis elliptique à l’approche des hauts fonds. L’addition du mouvement circulaire ou elliptique de chacune des particules d’eau forme au final une vague dont le déplacement et la manifestation sont visibles en surface. La modélisation des mouvements des particules d’eau a fait l’objet de publications scientifiques. Il est notamment connu, l’équation mathématique de la trajectoire d’une particule d’eau au passage d’une longueur d’onde de vague. Dans un régime non déferlant, cette trajectoire est fermée et a la forme selon la profondeur d’un cercle ou d’une ellipse. Au niveau de la surface, la trajectoire d’une particule d’eau se rapproche d’un cercle, au niveau fond, dans certaines configurations mathématiques qui tiennent en compte de la fréquence de l’onde de vague et de la hauteur de la colonne d’eau entre le niveau de l’eau et celui du fond, la trajectoire devient elliptique et s’aplatit progressivement. Elle va dans certaines configurations adopter un format d’ellipse très voir totalement aplatie, soit pour les particules à cette altitude, à un mouvement sensiblement horizontal de va et vient du flux d’eau. Cette forme de trajectoire se trouve à une profondeur bien particulière et elle dépend notamment de la hauteur de colonne d’eau et de la fréquence ondulatoire du train de vagues. [0008] The present invention is aimed at recovering substantially horizontal forces as the waves pass. These efforts are little known and almost invisible. They are not yet worked on by any existing solution of the prior art. Indeed, it is little known that the movement of the waves, which are a train of waves that are visible on the surface, trigger a movement over the entire water column as the wave passes. This movement of water is for each water particle as the water passes, in the current terrestrial frame of reference, a circular then elliptical movement when approaching shallows. The addition of the circular or elliptical movement of each of the water particles ultimately forms a wave whose movement and manifestation are visible on the surface. The modeling of the movements of water particles has been the subject of scientific publications. It is particularly known, the mathematical equation of the trajectory of a water particle to the passage of a wave wavelength. In a non-breaking regime, this trajectory is closed and has the shape according to the depth of a circle or an ellipse. At the surface level, the trajectory of a water particle approaches a circle, at the bottom level, in certain mathematical configurations which take into account the frequency of the wave of wave and the height of the water column between the level of the water and that of the bottom, the trajectory becomes elliptical and gradually flattens. In certain configurations, it will adopt a format of a very or even totally flattened ellipse, or for the particles at this altitude, a substantially horizontal movement back and forth from the flow of water. This form of trajectory is found at a very specific depth and it depends in particular on the height of the water column and the undulatory frequency of the wave train.
[0009] Dans un aspect principal, l’invention propose un houlomoteur à récupération horizontale à proximité du fond en bord de côte. [0009] In one main aspect, the invention proposes a wave energy generator with horizontal recovery close to the bottom at the edge of the coast.
[0010] Dans un aspect le récupérateur est constitué d’un foil, ou hydroptère, qui est une aile de portance bien connue en nautisme, dont l’arbre de maintien coulisse au sein d’un dispositif de récupération d’énergie. L’aile de foil qui est traversée par les mouvements horizontaux de l’eau et soumis à un effet de portance alternativement positive et négative et oscille donc autour d’une position d’équilibre. Un arbre vertical le maintien oscille donc verticalement et ce mouvement de l’arbre à travers le dispositif de récupération d’énergie est un générateur électrique. Les moyens de génération d’électricité sont connus et utilisent par exemple des bobinages conducteurs avec une transformation d’énergie mécanique en énergie électromagnétique. [0010] In one aspect, the recuperator consists of a foil, or hydrofoil, which is a well-known lift wing in boating, the holding shaft of which slides within an energy recovery device. The foil wing which is crossed by the horizontal movements of the water and subjected to an alternately positive and negative lift effect and therefore oscillates around a position of equilibrium. A vertical shaft therefore oscillates vertically and this movement of the shaft through the energy harvesting device is an electrical generator. The means of generating electricity are known and use, for example, conductive windings with a transformation of mechanical energy into electromagnetic energy.
[0011] Dans un aspect la position du foil est calculée au moyen d’un calculateur et optimisée pour maximiser le rendement énergétique. [0011] In one aspect, the position of the foil is calculated using a computer and optimized to maximize energy efficiency.
[0012] Un objet principal de l’invention est donc bien de proposer un système de récupération d’énergie houlomotrice qui soit facilement industrialisable, dont le prix de revient à la fabrication soit raisonnable, dont l’entretien soit facile, dont la durée de vie soit longue, et dont la rentabilité énergétique soit optimale. [0012] A main object of the invention is therefore to provide a wave energy recovery system which is easily industrializable, whose manufacturing cost is reasonable, whose maintenance is easy, whose duration of life is long, and whose energy efficiency is optimal.
[0013] Une grande qualité de l’invention est que le travail de gros œuvre pour l’implantation et l’entretien et l’envoi de l’énergie sur les réseaux est moins coûteux que les solutions de pleine mer, car l’accès à proximité des côtes et bien entendu beaucoup plus facile et proche qu’en pleine mer. [0014] Un objet de l’invention est de pouvoir récupérer de l’énergie par quasiment toutes les conditions de météo et de vague, amplitude de vague, fréquences de vague, vent, pluie, qualité de l’eau. [0013] A great quality of the invention is that the work of structural work for the installation and the maintenance and the sending of the energy on the networks is less expensive than the solutions of open sea, because the access close to the coast and of course much easier and closer than at sea. [0014] An object of the invention is to be able to recover energy in almost all weather and wave conditions, wave amplitude, wave frequencies, wind, rain, water quality.
[0015] Un objet de l’invention est de fonctionner quel que soit l’orientation des trains de vagues. L’invention par l’utilisation d’un foil qui est une aile symétrique autour de son axe d’oscillation s’oriente naturellement face au train de vague pour absorber son énergie. An object of the invention is to operate regardless of the orientation of the wave trains. The invention by the use of a foil which is a symmetrical wing around its axis of oscillation is naturally oriented in front of the wave train to absorb its energy.
[0016] La solution sera mieux comprise à la lecture des figures annexées sur les lesquelles : The solution will be better understood on reading the appended figures in which:
[0017] [Fig 1] représente une vue de principe du dispositif dans son environnement[0017] [Fig 1] represents a principle view of the device in its environment
[0018] [Fig 2] représente une vue de principe de deux trajectoires de particules d’eau[0018] [Fig 2] represents a principle view of two trajectories of water particles
[0019] [Fig 3] représente une vue de face de l’invention dans un mode dit de foil[0019] [Fig 3] represents a front view of the invention in a so-called foil mode
[0020] [Fig 4] représente une vue de côté de l’invention dans un mode dit de foil[0020] [Fig 4] represents a side view of the invention in a so-called foil mode
[0021] [Fig 1] représente une vue de principe du dispositif dans son environnement avec le niveau de l’eau (M), le bassin d’eau étant préférentiellement une mer ou un océan mais pouvant aussi être un lac ou une rivière pour peu que des vagues y soient générées. Le fond marin (S) se trouve à une hauteur (H) sous le niveau de l’eau. Au fur et à mesure que la mer se rapproche de la côte, la hauteur d’eau (H) baisse. Sur le fond, dans une proximité de la côte particulière déterminée, les exploitants positionnent l’houlomoteur (10) récupérateur d’énergie des vagues. Sur ce dessin, l’houlomoteur (10) est positionné au fond de l’eau de façon à capter un mouvement particulier des particules d’eau par le fond. [0021] [Fig 1] shows a principle view of the device in its environment with the water level (M), the water basin being preferably a sea or an ocean but can also be a lake or a river to little that waves are generated there. The seabed (S) is at a height (H) below the water level. As the sea gets closer to the coast, the water height (H) drops. On the bottom, in a specific proximity to the coast, the operators position the wave energy generator (10) to recover wave energy. In this drawing, the wave motor (10) is positioned at the bottom of the water so as to capture a particular movement of the water particles from the bottom.
[0022] [Fig 2] représente une vue de principe de deux trajectoires de particules d’eau avec une forme sensiblement circulaire pour une particule d’eau de surface, qui va a une ellipse aplatie pour une particule d’eau de fond. L’aplatissement de l’ellipse répond à une formule mathématique qui a comme paramètre notamment la longueur d’onde des vagues, l’amplitude des vagues, et la hauteur d’eau (H). L’objet de l’invention est de disposer l’houlomoteur (10) a une altitude telle que la trajectoire des particules d’eau adoptent une ellipse quasi plate. A cette altitude, l’effort de poussée horizontal dans un mouvement de va et vient sera maximum. L’invention tient à convertir cet effort de poussée horizontal en énergie. [0023] [Fig 3] représente une vue de face de l’houlomoteur (10) dans un mode dit de foil. Dans ce mode, un socle (15), ancré dans le sol soit par sa gravité, soit par des ancrages spécifiques, est disposé sur le fond. Au-dessus du socle (15) affleure l’aile de foil (12) qui est montée sur un arbre (13). L’arbre (13) est monté sous le centre de gravité de l’aile de foil. L’aile de foil, vue de face, est symétrique. L’arbre de foil (13) est monté astreint coulissant verticalement vis-à- vis du socle (15) dans un puits de foil (14). L’arbre de foil est monté libre en rotation angulaire dans le puits de foil (14). De cette façon, quel que soit l’orientation des flux de vague, le foil s’oriente comme une girouette face au flux de vague. Sous les efforts de fond des mouvements d’eau, l’aile de foil est alternativement poussée vers le haut et vers le bas. Le mouvement de l’arbre de foil (13) en translation vertical dans le puits de foil (14) est récupéré par des moyens connus qui peuvent être mécanique et / ou électromagnétique. Ce mouvement est récupéré et convertit en énergie électrique par un convertisseur (17). [0022] [Fig 2] shows a principle view of two trajectories of water particles with a substantially circular shape for a surface water particle, which goes to a flattened ellipse for a bottom water particle. The flattening of the ellipse responds to a mathematical formula which has as parameter in particular the wavelength of the waves, the amplitude of the waves, and the water height (H). The object of the invention is to arrange the wave energy generator (10) at an altitude such that the trajectory of the water particles adopts an almost flat ellipse. At this altitude, the horizontal thrust effort in a back and forth movement will be maximum. The invention aims to convert this horizontal thrust force into energy. [0023] [Fig 3] shows a front view of the wave power generator (10) in a so-called foil mode. In this mode, a base (15), anchored in the ground either by its gravity or by specific anchors, is arranged on the bottom. Above the base (15) is flush with the foil wing (12) which is mounted on a shaft (13). The shaft (13) is mounted below the center of gravity of the foil wing. The foil wing, seen from the front, is symmetrical. The foil shaft (13) is mounted constrained to slide vertically with respect to the base (15) in a foil well (14). The foil shaft is mounted free in angular rotation in the foil well (14). In this way, whatever the orientation of the wave flow, the foil orients itself like a weather vane facing the wave flow. Under the bottom stresses of the water movements, the foil wing is alternately pushed up and down. The movement of the foil shaft (13) in vertical translation in the foil well (14) is recovered by known means which may be mechanical and/or electromagnetic. This movement is recovered and converted into electrical energy by a converter (17).
[0024] [Fig 4] représente une vue de côté de l’houlomoteur dans un mode dit de foil. Il est apparent que l’aile de foil présente un profil aérodynamique qui donne une portance lorsque l’aile de foil traverse un fluide. Le mouvement de l’arbre d’aile de foil à qui est transmis le mouvement vertical est récupéré par un récupérateur d’énergie, qui transmet le courant électrique crée à travers un réseau filaire (18) qui est relié à une centrale électrique qui est positionné sur un ponton ou sur le sol au-dessus du niveau de la mer. Il est entendu que la position d’équilibre assurée par un mécanisme de rappel ou de lestage positionne le foil à une position d’équilibre gravitaire au niveau où il sera positionné pour prendre le maximum de flux horizontal. En bref, la position d’équilibre du foil sous l’eau est réglable pour atteindre un équilibre sur l’axe vertical et générer un mouvement oscillatoire autour de cette position au passage du flux et reflux des particules d’eau. L’incidence d’attaque du foil est aussi réglable pour optimiser le rendement des efforts de portance et / ou d’absence de portance. Un calculateur pilote un dispositif mécanique de positionnement de foil qui positionne le foil sous l’eau pour optimiser le rendement énergétique de son mouvement oscillatoire selon l’axe vertical qui génère la récupération de l’énergie houlomotrice de fond. Le dessus de l’aile de foil peut être équipé d’un aileron vertical pour contrecarrer un effet girouette. L’arbre de foil (13) peut être entouré d’une chaussette qui évitera à des grains de sable de venir perturber et freiner les oscillations. [0024] [Fig 4] shows a side view of the wave power generator in a so-called foil mode. It is apparent that the foil wing has an airfoil that provides lift when the foil wing passes through a fluid. The movement of the foil wing shaft to which the vertical movement is transmitted is recovered by an energy recuperator, which transmits the electric current created through a wired network (18) which is connected to a power station which is positioned on a pontoon or on the ground above sea level. It is understood that the position of equilibrium ensured by a return or ballast mechanism positions the foil at a position of gravity equilibrium at the level where it will be positioned to take the maximum horizontal flow. In short, the equilibrium position of the foil under water is adjustable to achieve equilibrium on the vertical axis and generate an oscillatory movement around this position as the ebb and flow of water particles pass. The foil's attack incidence is also adjustable to optimize the performance of lift and/or lack of lift efforts. A computer controls a mechanical foil positioning device which positions the foil underwater to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of the bottom wave energy. The top of the foil wing can be fitted with a vertical fin to counteract a weathervane effect. The foil shaft (13) can be surrounded by a sock which will prevent grains of sand from disturbing and slowing down the oscillations.
[0025] La présente invention est donc bien un dispositif de récupération d’énergie houlomotrice de train de vagues caractérisé en ce qu’il est constitué d’un capteur d’efforts horizontaux (12) par le fond (S) à proximité des côtes provenant du mouvement des particules d’eau au passage des trais de vague qui transcrit les efforts captés en un mouvement vertical qui est récupéré et convertit en énergie électrique par un convertisseur (17) logé sous l’eau dans un socle (15) relié par un réseau filaire (18) à une centrale au-dessus du niveau de l’eau. The present invention is therefore indeed a wave train wave energy recovery device characterized in that it consists of a horizontal force sensor (12) by the bottom (S) near the coasts coming from the movement of the water particles in the passage of the wave trais which transcribes the forces captured into a vertical movement which is recovered and converted into electrical energy by a converter (17) housed under water in a base (15) connected by a wired network (18) to a plant above water level.
[0026] La présente invention concerne donc un dispositif de récupération d’énergie houlomotrice de train de vagues que le capteur d’effort (12) est une aile de foil horizontale montée sur un arbre vertical (13) qui coulisse en translation verticale dans un puits de foil (14). The present invention therefore relates to a wave train energy recovery device that the force sensor (12) is a horizontal foil wing mounted on a vertical shaft (13) which slides in vertical translation in a foil well (14).
[0027] La présente invention concerne donc un dispositif de récupération d’énergie houlomotrice caractérisé en ce que un calculateur pilote en fonction des paramètres de houle, de géolocalisation et de marée, un dispositif mécanique de positionnement de la profondeur d’attaque du foil et de son angle d’incidence sous l’eau pour optimiser le rendement énergétique de son mouvement oscillatoire selon l’axe vertical qui génère la récupération de l’énergie houlomotrice. The present invention therefore relates to a wave energy recovery device characterized in that a pilot computer according to the parameters of swell, geolocation and tide, a mechanical device for positioning the depth of attack of the foil and of its angle of incidence underwater to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of wave energy.
[0028] La présente invention concerne un dispositif de récupération d’énergie houlomotrice caractérisé en ce que un calculateur pilote en fonction des paramètres de houle, de géolocalisation et de marée, un dispositif mécanique de positionnement de la profondeur d’attaque du foil et de son angle d’incidence sous l’eau pour optimiser le rendement énergétique de son mouvement oscillatoire selon l’axe vertical qui génère la récupération de l’énergie houlomotrice [0028] The present invention relates to a wave energy recovery device characterized in that a pilot computer according to the parameters of swell, geolocation and tide, a mechanical device for positioning the depth of attack of the foil and its angle of incidence under water to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of wave energy
[0029] La présente invention concerne un dispositif de récupération d’énergie houlomotrice caractérisé en ce que le convertisseur alimente une batterie du bateau pour le pilotage et/ou la propulsion. [0030] La présente invention concerne un dispositif de récupération d’énergie houlomotrice caractérisé en ce qu’en navigation, le mouvement du capteur d’effort (12) puisse être asservi, et le capteur d’effort soit alors utilisé comme foil pour donner de la portance au bateau. The present invention relates to a wave energy recovery device characterized in that the converter supplies a boat battery for piloting and/or propulsion. The present invention relates to a wave energy recovery device characterized in that in navigation, the movement of the force sensor (12) can be controlled, and the force sensor is then used as a foil to give lift to the boat.
[0031 ] Il est entendu que la présente invention peut présenter des variantes qui seront incluses au-delà du périmètre direct de la présente description par analogie, équivalent ou transposition.) [0031] It is understood that the present invention may present variants which will be included beyond the direct scope of the present description by analogy, equivalent or transposition.)

Claims

8 Revendications 8 Claims
[Revendication 1] [Dispositif de récupération d’énergie houlomotrice de train de vagues caractérisé en ce qu’il est constitué d’un capteur d’efforts horizontaux (12) sous une colonne d’eau au passage des vagues par le fond (S) à proximité immédiate des côtes qui récupère les efforts alternés à cisaillement horizontal des particules d’eau sous l’effet de la propagation des train de vagues qui s’échouent sur le bord et transcrit ces efforts en un mouvement d’une partie mobile verticalement (12, 13) du capteur d’efforts horizontaux (12), ce dit mouvement étant convertit en énergie électrique par un convertisseur (17) logé sous l’eau dans un socle (15), le convertisseur est relié par un réseau filaire (18) à une centrale au-dessus du niveau de l’eau, le capteur d’effort (12) est une aile de foil horizontale ou hydroptère montée sur un arbre vertical (13) qui coulisse en translation verticale dans un puits de foil (14) dont la variation verticale se fait par l’alternance d’une conversion du mouvement horizontal des particules d’eau qui dans le flux se traduit par une portance verticale du foil et dans le reflux d’une absence de portance. [Claim 1] [Wave train wave energy recovery device characterized in that it consists of a horizontal force sensor (12) under a column of water when the waves pass through the bottom (S ) in the immediate vicinity of the coasts which recovers the alternating horizontal shear forces of the water particles under the effect of the propagation of the train of waves which run aground on the edge and transcribes these forces into a movement of a vertically mobile part (12, 13) of the horizontal force sensor (12), said movement being converted into electrical energy by a converter (17) housed underwater in a base (15), the converter is connected by a wired network ( 18) at a center above water level, the force sensor (12) is a horizontal foil wing or hydrofoil mounted on a vertical shaft (13) which slides in vertical translation in a foil well ( 14) whose vertical variation is made by the alternation of a conversion of the horizontal movement of the water particles which in the flow results in a vertical lift of the foil and in the reflux of an absence of lift.
[Revendication 2] Dispositif de récupération d’énergie houlomotrice selon la revendication 1 caractérisé en ce que un calculateur pilote en fonction des paramètres de houle, de géolocalisation et de marée, un dispositif mécanique de positionnement de la profondeur d’attaque du foil et de son angle d’incidence sous l’eau pour optimiser le rendement énergétique de son mouvement oscillatoire selon l’axe vertical qui génère la récupération de l’énergie houlomotrice [Claim 2] Wave energy recovery device according to claim 1, characterized in that a pilot computer, depending on the swell, geolocation and tide parameters, a mechanical device for positioning the depth of attack of the foil and its angle of incidence under water to optimize the energy efficiency of its oscillatory movement along the vertical axis which generates the recovery of wave energy
[Revendication 3] Dispositif de récupération d’énergie houlomotrice de train de vagues selon la revendication 1 caractérisé en ce que le socle (15) est solidarisée à la coque d’un bateau, le bateau est ancré près du bord ou attaché au port pour le capteur d’effort puisse se retrouver positionné par le fond. [Claim 3] Wave train wave energy recovery device according to claim 1 characterized in that the base (15) is secured to the hull of a boat, the boat is anchored near the edge or attached to the port for the effort sensor can end up positioned by the bottom.
[Revendication 4] Dispositif de récupération d’énergie houlomotrice de train de vagues selon la revendication 1 et 3 caractérisé en ce que le convertisseur (17) alimente une batterie du bateau pour le pilotage et/ou la propulsion. 9 [Claim 4] Wave train wave energy recovery device according to Claim 1 and 3, characterized in that the converter (17) supplies a boat battery for piloting and/or propulsion. 9
[Revendication 5] Dispositif de récupération d’énergie houlomotrice de train de vagues selon la revendication 1 caractérisé en ce que en navigation, le mouvement du capteur d’effort (12) puisse être asservi, et le capteur d’effort soit alors utilisé comme foil pour donner de la portance au bateau, j [Claim 5] Wave train wave energy recovery device according to claim 1 characterized in that in navigation, the movement of the force sensor (12) can be controlled, and the force sensor is then used as foil to give lift to the boat, j
PCT/EP2021/073536 2020-08-29 2021-08-25 Wave energy device for horizontally recovering wave energy on coastal seabeds WO2022043397A1 (en)

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FR2008803A FR3113703B1 (en) 2020-08-29 2020-08-29 Horizontal recovery wave power generator on coastal background.

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539485A (en) * 1983-10-07 1985-09-03 Neuenschwander Victor L Wave activated generator
GB2412143A (en) 2004-03-16 2005-09-21 Tidal Energy Business Ltd Apparatus for extracting or generating power
US20090025382A1 (en) 2005-04-07 2009-01-29 Esko Raikamo Method and Arrangement for Collecting Wave Energy
WO2010126378A1 (en) 2009-04-30 2010-11-04 Tidal Sails As Wave power plant
EP2318697A1 (en) * 2008-08-28 2011-05-11 Seabased AB A wave-power unit, and a use of a such
CN107187572A (en) * 2017-05-02 2017-09-22 哈尔滨工程大学 It is a kind of to utilize the new-type wave propulsion plant for hiding float and the gradient wing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539485A (en) * 1983-10-07 1985-09-03 Neuenschwander Victor L Wave activated generator
GB2412143A (en) 2004-03-16 2005-09-21 Tidal Energy Business Ltd Apparatus for extracting or generating power
US20090025382A1 (en) 2005-04-07 2009-01-29 Esko Raikamo Method and Arrangement for Collecting Wave Energy
EP2318697A1 (en) * 2008-08-28 2011-05-11 Seabased AB A wave-power unit, and a use of a such
WO2010126378A1 (en) 2009-04-30 2010-11-04 Tidal Sails As Wave power plant
CN107187572A (en) * 2017-05-02 2017-09-22 哈尔滨工程大学 It is a kind of to utilize the new-type wave propulsion plant for hiding float and the gradient wing

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