FR2924768A1 - Kinetic energy converting device for offshore wind turbine, has rocking lever composed of floaters located before and behind shell, where torque is generated by periodic oscillations of rocking lever on shaft to traverse shell - Google Patents

Kinetic energy converting device for offshore wind turbine, has rocking lever composed of floaters located before and behind shell, where torque is generated by periodic oscillations of rocking lever on shaft to traverse shell Download PDF

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Publication number
FR2924768A1
FR2924768A1 FR0708585A FR0708585A FR2924768A1 FR 2924768 A1 FR2924768 A1 FR 2924768A1 FR 0708585 A FR0708585 A FR 0708585A FR 0708585 A FR0708585 A FR 0708585A FR 2924768 A1 FR2924768 A1 FR 2924768A1
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France
Prior art keywords
shaft
rocking lever
existence
shell
swell
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FR0708585A
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French (fr)
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Los Rios Pierre De
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Individual
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Individual
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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"
    • F03B13/20—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" wherein both members, i.e. wom and rem are movable relative to the sea bed or shore
    • 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

Abstract

The device has a wave-powered generator floater with an external rocking lever (19) composed of auxiliary floaters (12) that are located before and behind a central shell (11) of the wave-powered generator floater. The floaters (12) are supported by two arms (13) whose length is adjustable to adapt the oscillation of the rocking lever to the frequency of the waves. The torque is generated by the periodic oscillations of the rocking lever on a shaft (14) to traverse the central shell of the wave-powered generator floater.

Description

2924768 DESCRIPTION A I ÉTAT DE LA TECHNIQUE . 1 - Les flotteurs houlo-générateurs 2924768 DESCRIPTION A I STATE OF THE ART. 1 - Floating floats

De nombreux appareils récupérateurs de I' énergie de la houle et des vagues ont été conçus , fabriqués et mis en service . Rappelons les principes utilisés : - soit les flotteurs montent et descendent, à l'intérieur de guides ou de tubes, en fonction de r amplitude de la houle ou de la hauteur des vagues ; - soit le mouvement relatif des flotteurs actionne directement ou indirectement des générateurs . - soit des organes mobiles ( pendules, palettes, traîneaux ,...) ou rotatifs actionnent les générateurs de par leurs déplacements relatifs . Many wave and wave energy harvesting devices have been designed, manufactured and commissioned. Recall the principles used: - either the floats rise and fall, inside guides or tubes, depending on r amplitude of the swell or the height of the waves; or the relative movement of the floats directly or indirectly activates generators. - Or moving parts (pendulums, pallets, sleds, ...) or rotating actuators generators by their relative movements.

La présente invention reprend cette dernière conception . The present invention takes this latter design.

2 - Le brevet n° 2.815.190 délivré le 12 avril 2002 : 2 - Patent No. 2,815,190 issued on April 12, 2002:

Déposé le 04-02-2000 par le même inventeur, le brevet expose dans la figure 1/1 le principe d'un balancier portant deux flotteurs et oscillant sous les mouvements de la houle . Deposited on 04-02-2000 by the same inventor, the patent shows in Figure 1/1 the principle of a balance carrying two floats and oscillating under the movements of the swell.

La présente invention reprend cette conception . The present invention incorporates this design.

B I LE FLOTTEUR 1 - La coque centrale : B I THE FLOAT 1 - The central hull:

La coque centrale (11) possède une carène (15) profilée de façon à ce que l' axe de tangage du balancier (19) soit toujours parallèle au front de la houle et qu' elle offre par ailleurs moins de résistance à l' avancée de la houle et des vagues . The central hull (11) has a hull (15) profiled so that the axis of pitch of the balance (19) is always parallel to the front of the swell and that it also offers less resistance to the advanced swell and waves.

L' arbre principal (14) traverse la coque centrale (11) dans sa largeur et se trouve ainsi parallèle au front de la houle . Solidaire du balancier (19) il tourne donc alternativement d' un certain angle . En sortie de la coque ,I' arbre (14) comprend deux platines (18) pour le dispositif d' ancrage . Un capot (16) , dont une partie est amovible , assure I' étanchéité de la coque . Un dispositif étanche (17) en partie basse permet le passage de câbles . The main shaft (14) traverses the central hull (11) in its width and is thus parallel to the wave front. Solidarity of the balance (19) it rotates alternately from a certain angle. At the outlet of the hull, the shaft (14) comprises two plates (18) for the anchoring device. A cover (16), a part of which is removable, ensures the sealing of the shell. A sealed device (17) in the lower part allows the passage of cables.

2 - Le balancier : 2 - The pendulum:

Les deux flotteurs auxiliaires (12) , placés devant et derrière la coque centrale (11) , ont un profil leur permettant de "monter" immédiatement sur le front de houle afin d' assurer un tangage maximal au balancier et donc des angles maximaux d' oscillation de l' arbre (14) . Les deux bras (13) , dont la longueur est réglable , donnent au balancier (19) l' envergure la mieux 30 adaptée à la fréquence de la houle ( distance entre deux crêtes ). Le mécanisme d' ajustement de la longueur des bras (13) n' est pas décrit étant donné sa banalité . La commande s' effectue à partir du rivage ou dans , une configuration plus sophistiquée , grâce à un programmateur embarqué (41) . 2 C / LE SYSTÈME ROTATIF . 1 - La récupération de r énergie de la houle : The two auxiliary floats (12), placed in front of and behind the central hull (11), have a profile allowing them to "climb" immediately on the wave front so as to ensure a maximum pitch of the balance and therefore maximum angles of oscillation of the shaft (14). The two arms (13), whose length is adjustable, give the balance (19) the span best adapted to the frequency of the swell (distance between two peaks). The mechanism for adjusting the length of the arms (13) is not described because of its banality. The command is from the shore or in a more sophisticated configuration, thanks to an on-board programmer (41). 2 C / THE ROTARY SYSTEM. 1 - The recovery of wave energy:

Les deux flotteurs (12) situés en deux points distants de l' onde de la houle, donc à deux altitudes différentes , impriment au balancier (19) une oscillation génératrice d' un couple dépendant de la 5 géométrie du balancier et de I' amplitude de la houle . Le passage de l' onde faisant osciller le balancier , imprime donc à l' arbre (14) une rotation dans un sens puis dans I' autre , traduisant fidèlement la fréquence de la houle . Les rotations alternatives de r arbre (14) sont transmises à deux roues à cliquets (22) , montées systématiquement en sens inverse. Un démultiplicateur (21) à vitesses variables et deux ressorts 10 spiraux (23) s' intercalent entre I' arbre (14) et les deux roues (22) . The two floats (12) located at two points distant from the wave of the swell, therefore at two different altitudes, impart to the balance (19) an oscillation generating a torque depending on the geometry of the balance and the amplitude. of the swell. The passage of the wave oscillating the balance, thus prints the shaft (14) a rotation in one direction and then in the other, faithfully reflecting the frequency of the swell. The reciprocating shaft rotations (14) are transmitted to two ratchet wheels (22), systematically mounted in the opposite direction. A variable speed reduction gear (21) and two spiral springs (23) are interposed between the shaft (14) and the two wheels (22).

2 - Les deux volants inertiels : 2 - The two inertial flywheels:

Solidaire d' une roue à cliquets (22), chacun des deux volants inertiels (24) reçoit lors de chaque oscillation du balancier , une impulsion spécifique qui accroît son énergie cinétique . Puisque les roues à cliquets (22) sont montés en sens inverse, les volants inertiels (24) tournent 15 donc toujours en sens opposé , quel que soit le sens de l' impulsion du balancier (19) . Les sens de rotation systématiquement inversés des deux volants inertiels (24) permet aussi de neutraliser leurs effets gyroscopiques . In solidarity with a ratchet wheel (22), each of the two inertial flywheels (24) receives, during each oscillation of the balance, a specific impulse which increases its kinetic energy. Since the ratchet wheels (22) are mounted in opposite directions, the flywheels (24) therefore always turn in opposite directions, irrespective of the direction of the pendulum pulse (19). The systematically inverted rotation directions of the two inertial flywheels (24) also neutralize their gyroscopic effects.

3 - Les générateurs d' électricité : 3 - Generators of electricity:

Selon une première réalisation de I' invention, les deux volants inertiels (24) sont couplés à un 20 répartiteur (33) qui est solidaire , directement ou par le biais d' un démultiplicateur , à un unique alternateur (31) . Le répartiteur s' engrène automatiquement sur le volant le plus rapide , en inversant le cas échéant , le sens de rotation de l' arbre moteur (32) entraînant l' alternateur . Selon une autre réalisation de I' invention, chacun des volants inertiels (24) est directement couplé à un alternateur (31) , via éventuellement un démultiplicateur secondaire de vitesse (36) . 25 Selon une autre réalisation de l' invention, chacun des volants inertiels (24) est équipé d' aimants (34) , tournant devant des bobines adéquates (35) , ce qui constitue un véritable alternateur . D / LES ORGANES ANNEXES . 1 - La régulation des dispositifs décrits plus haut : Selon une réalisation basique de I' invention, l' ajustement de la longueur totale du balancier 19) 30 et les vitesses des démultiplicateurs (21) & (36), sont commandés du rivage . Selon une seconde version de l' invention, ces commandes sont effectuées automatiquement par un programmateur embarqué (41) , assisté de capteurs (42) qui mesurent de manière permanente les angles du balancier, les vitesses angulaires des volants inertiels, la puissance délivrée par les alternateurs, etc... . 35 Selon une version plus sophistiquée de l' invention , un radar (43) recueille les caractéristiques de la houle ( fréquence, amplitude) pour une commande plus fine du programmateur (41) . According to a first embodiment of the invention, the two inertial flywheels (24) are coupled to a distributor (33) which is integral, directly or by means of a reduction gear, to a single alternator (31). The splitter automatically meshes with the fastest flywheel, reversing if necessary the direction of rotation of the motor shaft (32) driving the alternator. According to another embodiment of the invention, each of the flywheels (24) is directly coupled to an alternator (31), possibly via a secondary speed reducer (36). According to another embodiment of the invention, each of the inertial flywheels (24) is equipped with magnets (34), rotating in front of suitable coils (35), which constitutes a real alternator. D / THE APPENDICES. 1 - Regulation of the devices described above: According to a basic embodiment of the invention, the adjustment of the total length of the balance 19) and the speeds of the multipliers (21) & (36) are controlled from the shore. According to a second version of the invention, these commands are carried out automatically by an onboard programmer (41), assisted by sensors (42) which permanently measure the angles of the balance, the angular speeds of the flywheels, the power delivered by the alternators, etc ... According to a more sophisticated version of the invention, a radar (43) collects wave characteristics (frequency, amplitude) for finer control of the programmer (41).

2 - Stockage et transfert de l' énergie électrique : Cités ici pour mémoire , étant donné la banalité des dispositifs et matériels utilisés habituellement pour assurer ces fonctions . 2 - Storage and transfer of electrical energy: Cited here for memory, given the banality of the devices and materials usually used to perform these functions.

Claims (10)

Revendicationsclaims 1. Dispositif permettant de transférer I 'énergie cinétique de la houle à un couple de volants inertiels (24) , en rotation inverse , caractérisé par l' utilisation du couple engendré par les oscillations périodiques d' un balancier (19) sur un arbre (14) traversant la coque centrale (11) du flotteur houlo-générateur . Device for transferring the kinetic energy of the swell to a pair of flywheels (24), in inverse rotation, characterized by the use of the torque generated by the periodic oscillations of a pendulum (19) on a shaft ( 14) passing through the central hull (11) of the float-generator float. 2. Dispositif selon la revendication 1 , caractérisé par le fait que le flotteur houlo- générateur est composé d' une coque centrale (Il), contenant le système rotatif , et d' un balancier extérieur (19) . Ce dernier comprend deux bras (13) supportant deux flotteurs auxiliaires (12), positionnés devant et derrière la coque centrale (11) . 2. Device according to claim 1, characterized in that the wave-generator float is composed of a central shell (II), containing the rotary system, and an outer beam (19). The latter comprises two arms (13) supporting two auxiliary floats (12), positioned in front of and behind the central shell (11). 3. Dispositif selon 1 'une quelconque des revendications précédentes , caractérisé en ce que les deux bras (13), portant les deux flotteurs auxiliaires (12) , sont solidaires de I' arbre principal (14) et ont une longueur totale réglable, soit lors du montage sur site, soit pendant le fonctionnement du flotteur, afin d' adapter au mieux les oscillations du balancier (19) à la fréquence de la houle. 3. Device according to any one of the preceding claims, characterized in that the two arms (13), carrying the two auxiliary floats (12), are integral with the main shaft (14) and have an adjustable total length, or during assembly on site, during operation of the float, in order to better adapt the oscillations of the balance (19) to the frequency of the swell. 4. Dispositif selon l'une quelconque des revendications précédentes , caractérisé par I ' existence de deux roues à cliquet (22) , chacune solidaire d'un volant inertiel (24) et reliées à l' arbre principal (14) par le biais d' un ressort spiral (23). Montées en sens inverse sur l' arbre , ces roues vont donc entraîner les volants dans deux sens opposés , car à chaque oscillation de l'arbre seul le volant concerné recevra une impulsion 4. Device according to any one of the preceding claims, characterized by the existence of two ratchet wheels (22), each integral with an inertial flywheel (24) and connected to the main shaft (14) through a spiral spring (23). Mounted in the opposite direction on the shaft, these wheels will therefore drive the wheels in two opposite directions, because at each oscillation of the tree only the steering wheel concerned will receive an impulse. 5. Dispositif selon 1' une quelconque des revendications précédentes , caractérisé par l'existence d' un démultiplicateur à plusieurs vitesses (21) entre l'arbre principal (14) et les deux volants (24) , afin de récupérer au mieux l'énergie cinétique de la houle. 5. Device according to any one of the preceding claims, characterized by the existence of a multi-speed reduction gear (21) between the main shaft (14) and the two flywheels (24), in order to best recover the kinetic energy of the swell. 6. Dispositif selon I 'une quelconque des revendications précédentes, caractérisé par I 'existence d' un répartiteur d' impulsions (33) couplé aux deux volants inertiels via un dispositif automatique de sélection du volant tournant le plus rapidement et comprenant un inverseur, de telle sorte que r arbre moteur ( 32) tourne toujours dans le même sens . Cet arbre moteur (32) est l' solidaire de 1' alternateur (31), par le biais d' un démultiplicateur (36) . 6. Device according to any one of the preceding claims, characterized by the existence of a pulse distributor (33) coupled to the two flywheels via an automatic device for selecting the fastest rotating flywheel and comprising an inverter, of such that the motor shaft (32) always rotates in the same direction. This driving shaft (32) is integral with the alternator (31), by means of a reduction gear (36). 7. Dispositif selon I ' une quelconque des revendications 1 à 5 , caractérisé par l'existence de deux alternateurs (31) couplé chacun à un volant inertiel (24) , soit directement, soit par le biais d' un démultiplicateur. 7. Device according to any one of claims 1 to 5, characterized by the existence of two alternators (31) each coupled to an inertial flywheel (24), either directly or by means of a gear reducer. 8. Dispositif selon l'une quelconque des revendications 1 à 5 , caractérisé par I 'équipement de chaque volant inertiel (24) d' un jeu d' aimants (34) qui se déplacent devant des bobines fixes (35) . Les volants inertiels deviennent donc des alternateurs . 8. Device according to any one of claims 1 to 5, characterized by the equipment of each flywheel (24) of a set of magnets (34) which move in front of fixed coils (35). Inertial flywheels become alternators. 9. Dispositif selon 1' une quelconque des revendications précédentes , caractérisé par 1' existence d' un dispositif de télécommande, à partir du rivage, de la longueur 35 totale des bras (13) du balancier (19) et des vitesses des différents démultiplicateurs (21) & (36). 9. Device according to any one of the preceding claims, characterized by the existence of a remote control device, from the shore, of the total length of the arms (13) of the balance (19) and the speeds of the various multipliers. (21) & (36). 10. Dispositif selon 1' une quelconque des revendications 1 à 8 , caractérisé par I 'existence d' un programmateur embarqué (41) , assisté de capteurs (42) et même d' un radar (43) , mesurant les caractéristiques instantanées de la houle et assurant les mêmes fonctions de régulation que la télécommande depuis le rivage. 10. Device according to any one of claims 1 to 8, characterized by the existence of an onboard programmer (41), assisted by sensors (42) and even a radar (43), measuring the instantaneous characteristics of the swell and providing the same control functions as the remote control from the shore.
FR0708585A 2007-12-10 2007-12-10 Kinetic energy converting device for offshore wind turbine, has rocking lever composed of floaters located before and behind shell, where torque is generated by periodic oscillations of rocking lever on shaft to traverse shell Pending FR2924768A1 (en)

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FR0708585A FR2924768A1 (en) 2007-12-10 2007-12-10 Kinetic energy converting device for offshore wind turbine, has rocking lever composed of floaters located before and behind shell, where torque is generated by periodic oscillations of rocking lever on shaft to traverse shell

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FR0708585A FR2924768A1 (en) 2007-12-10 2007-12-10 Kinetic energy converting device for offshore wind turbine, has rocking lever composed of floaters located before and behind shell, where torque is generated by periodic oscillations of rocking lever on shaft to traverse shell

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011103960A3 (en) * 2010-02-27 2011-12-29 Robert Bosch Gmbh Wave power plant
FR2971558A1 (en) * 2011-02-16 2012-08-17 Gilles Baratoux Device for recovering energy from sea waves for producing electricity, has container including converting mechanism for converting swinging movement caused by waves into rotational movement for rotating flywheel
EP2677164A1 (en) * 2012-06-19 2013-12-25 Robert Bosch Gmbh Wave energy converter, method for operating the same and control device
CN112983724A (en) * 2021-03-05 2021-06-18 山东大学 Wave energy power generation device tidal range automatic compensation system and control method thereof
EP4328445A1 (en) * 2022-08-26 2024-02-28 Kamil PODHOLA Offshore floater system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011103960A3 (en) * 2010-02-27 2011-12-29 Robert Bosch Gmbh Wave power plant
FR2971558A1 (en) * 2011-02-16 2012-08-17 Gilles Baratoux Device for recovering energy from sea waves for producing electricity, has container including converting mechanism for converting swinging movement caused by waves into rotational movement for rotating flywheel
EP2677164A1 (en) * 2012-06-19 2013-12-25 Robert Bosch Gmbh Wave energy converter, method for operating the same and control device
CN112983724A (en) * 2021-03-05 2021-06-18 山东大学 Wave energy power generation device tidal range automatic compensation system and control method thereof
EP4328445A1 (en) * 2022-08-26 2024-02-28 Kamil PODHOLA Offshore floater system

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