WO2011155906A1 - Unit for converting wave energy - Google Patents

Unit for converting wave energy Download PDF

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Publication number
WO2011155906A1
WO2011155906A1 PCT/TN2010/000002 TN2010000002W WO2011155906A1 WO 2011155906 A1 WO2011155906 A1 WO 2011155906A1 TN 2010000002 W TN2010000002 W TN 2010000002W WO 2011155906 A1 WO2011155906 A1 WO 2011155906A1
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WO
WIPO (PCT)
Prior art keywords
wave
ucev
cylinder
energy
piston
Prior art date
Application number
PCT/TN2010/000002
Other languages
French (fr)
Inventor
Anis M. Aouini
Original Assignee
Global Certif Sarl
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 Global Certif Sarl filed Critical Global Certif Sarl
Priority to EP10742918.5A priority Critical patent/EP2580466A1/en
Publication of WO2011155906A1 publication Critical patent/WO2011155906A1/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
    • F03B13/187—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 and the wom directly actuates the piston of a pump
    • 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 invention consists of a Unit for Converting Wave Energy (UCEV) into mechanical and then electrical energy.
  • UCEV Converting Wave Energy
  • This unit adapts to offshore exploitation, ranging from coastal (shallow) to deep water areas.
  • the unit (UCEV) allows the parallelization of a series of conversion devices, the mechanical energy (kinetic) longitudinal waves and the mechanical energy (wave) transverse kinetic energy translation through the piston (AT).
  • the amount of energy converted is directly related to the number of devices in parallel. This number can be unlimited "n devices".
  • the dress (F) having a specific shape See 3D view No. 5). can be pivotally mounted at an angle to the axis of the guide cylinder (B), thus making it possible to exploit both wave energy forms (longitudinal and transverse) by converging the direction of the energy longitudinal and adding it to the transverse energy. The sum of these two energies will be transmitted to the piston (A) by a translation along the guide cylinder (B) which is attached to a fixed point.
  • the dress (F) is equipped with a rudder (See 3D view No. 5), allowing it to rotate and position itself permanently facing the wave.
  • a minimum of sealing is provided between the walls of the piston (A) and the guide cylinder (B).
  • the pressure between the water surface and the piston (A) increases inside the cylinder (B).
  • the piston (A) rises with its own Archimedean thrust after putting the valve (I) in the open position.
  • the device has a lower resistance to reentrant waves in the cylinder (B) and tends to capture a maximum of energy received.
  • a double acting cylinder ( ⁇ ) is embedded in the guide cylinder (B) by means of a mounting bracket (E).
  • the piston (A) which is connected to the rod of the double-acting cylinder ( ⁇ ), transmits its movements to the piston of the latter.
  • the latter pushes the hydraulic oil to the one-way hydraulic system, whether up or down, using a set of valves (D).
  • the latter also makes it possible to extract hydraulic oil in the double-acting cylinder ( ⁇ ) through the hydraulic return circuit in one direction "whatever the up or down movement".
  • the aisle hydraulic system is connected to the inlet of a hydraulic motor (H).
  • the hydraulic return circuit is also connected to the output of the hydraulic motor (H) (see 3D view No. 7 and drawing No. 1).
  • the flow of the hydraulic oil is converted into a rotational movement of the motor axis (H) which is connected to the axis of an electric power generator (G) through a speed multiplier (See view 3D No. 6), thereby generating clean electrical energy (See drawing No. 1).
  • G electric power generator
  • G speed multiplier
  • the unit (UCEV) is provided with a system for measuring the average amplitude of the wave as a function of time, thus regulating the position of each of the devices by translating it by means of a guidance system (J ) to an optimal position.
  • the braking system () locks the device in its position until the change in the average amplitude of the wave.
  • the system captures the wave energies whatever the amplitude of the latter "Low, Medium or High).

Landscapes

  • 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

The invention relates to a unit (UCEV) for converting wave energy into mechanical energy and then into electric power. Said unit forms a series of devices placed in parallel in a non-restrictive manner. The device consists of a piston (A) provided with a valve (I) and translating, while rising and falling, inside a guide cylinder (B). A pivoting skirt (F), having a specific shape, is mounted in the lower portion of the cylinder (B). The piston (A), which is connected to the rod of the double-acting cylinder (C), transmits the movements thereof to the piston of the latter. Said cylinder (C) is attached to the cylinder (B) by an attachment system (E). A set of valves (D) provides a flow of hydraulic oil into the hydraulic "forward" and "return" circuits in a single direction regardless of the movement, rising or falling. The hydraulic "forward" and "return" circuits are connected to a hydraulic motor (H) which is connected in turn to the shaft of an electric current generator (G) via a speed step-up gear. The unit (WECU) is provided with a system for measuring the mean amplitude of the wave according to time, thus adjusting the position of each one of the devices by translating said device into an optimal position using a guide system (J). The braking system (K) locks the device in position, until the mean amplitude of the wave changes with time.

Description

Description Technique  Technical description
L'invention, sujet de cette description technique, consiste en une Unité de Conversion de l'Energie des Vagues (UCEV) en une énergie mécanique puis électrique. The invention, subject of this technical description, consists of a Unit for Converting Wave Energy (UCEV) into mechanical and then electrical energy.
Cette unité (UCEV) s'adapte à une exploitation en mer, allant des zones côtières (peu profondes) jusqu'aux zones des eaux profondes. L'unité (UCEV) admet la mise en parallèle d'une série de dispositifs de conversion, de l'énergie mécanique (cinétique) longitudinale des vagues ainsi que l'énergie mécanique (ondulatoire) transversale, en énergie cinétique de translation via le piston (A). This unit (UCEV) adapts to offshore exploitation, ranging from coastal (shallow) to deep water areas. The unit (UCEV) allows the parallelization of a series of conversion devices, the mechanical energy (kinetic) longitudinal waves and the mechanical energy (wave) transverse kinetic energy translation through the piston (AT).
La quantité d'énergie convertie est directement liée au nombre de dispositifs mis en parallèle. Ce nombre peut être illimité « n dispositifs ». (Voir dessin N°l) La robe (F) ayant une forme spécifique (Voir vue 3D N°5). peut être montée en liaison pivot à un certain angle par rapport à l'axe du cylindre de guidage (B) permettant ainsi d'exploiter les deux formes d'énergie de la vague (longitudinale et transversale) en convergeant la direction de l'énergie longitudinale et en l'additionnant à l'énergie transversale. La somme de ces deux énergies sera transmise au piston (A) par une translation tout au long du cylindre de guidage (B) qui est attaché à un point fixe. La robe (F) est munie d'un gouvernail (Voir vue 3D N°5), lui permettant de tourner et de se positionner en permanence face à la vague. Un minimum d'étanchéité est assuré entre les parois du piston (A) et le cylindre de guidage (B). Durant la phase de montée de la vague, la pression entre la surface de l'eau et le piston (A) croît à l'intérieur du cylindre (B). Par conséquent, le piston (A) monte avec sa propre poussée d'Archimède après avoir mis le clapet (I) en position ouverte. Ainsi, le dispositif présente une moindre résistance aux vagues rentrantes au cylindre (B) et a tendance à capter un maximum d'énergie reçue. The amount of energy converted is directly related to the number of devices in parallel. This number can be unlimited "n devices". (See drawing No. 1) The dress (F) having a specific shape (See 3D view No. 5). can be pivotally mounted at an angle to the axis of the guide cylinder (B), thus making it possible to exploit both wave energy forms (longitudinal and transverse) by converging the direction of the energy longitudinal and adding it to the transverse energy. The sum of these two energies will be transmitted to the piston (A) by a translation along the guide cylinder (B) which is attached to a fixed point. The dress (F) is equipped with a rudder (See 3D view No. 5), allowing it to rotate and position itself permanently facing the wave. A minimum of sealing is provided between the walls of the piston (A) and the guide cylinder (B). During the rise phase of the wave, the pressure between the water surface and the piston (A) increases inside the cylinder (B). As a result, the piston (A) rises with its own Archimedean thrust after putting the valve (I) in the open position. Thus, the device has a lower resistance to reentrant waves in the cylinder (B) and tends to capture a maximum of energy received.
Au début de la phase de descente de la vague, une dépression se crée entre le piston (A) et la surface de l'eau, le clapet (I) est ainsi fermé. Le piston (A) descend sous l'effet de l'énergie potentielle de la quantité d'eau déjà piégée à l'intérieur du cylindre (B). At the beginning of the descent phase of the wave, a depression is created between the piston (A) and the surface of the water, the valve (I) is thus closed. The piston (A) falls under the effect of the potential energy of the amount of water already trapped inside the cylinder (B).
Un vérin à double effet (Ç) est encastré au cylindre de guidage (B) à laide d'un support de fixation (E). Le piston (A) qui est lié à la tige du vérin à double effet (Ç), transmet ses mouvements au piston de ce dernier. Durant les mouvements de montée et de descente du piston du vérin à double effet (Ç). Ce dernier pousse l'huile hydraulique vers le circuit hydraulique d'allée en mono-sens, que ce soit en montée ou en descente et ce, à l'aide d'un jeu de clapets (D). Ce dernier permet aussi d'aspirer de l'huile hydraulique dans le vérin à double effets (Ç) à travers le circuit hydraulique de retour et ce en mono-sens « quelque soit le mouvement de montée ou de descente ». Le circuit hydraulique d'allée est connecté à l'entrée d'un moteur hydraulique (H). Le circuit hydraulique de retour, est par ailleurs connecté à la sortie du moteur hydraulique (H) (Voir vue 3D N°7 et dessin N°l). Ainsi le flux de l'huile hydraulique est converti en un mouvement de rotation de l'axe du moteur (H) qui est connecté à l'axe d'un générateur de courant électrique (G) à travers un multiplicateur de vitesse (Voir vue 3D N"6), générant ainsi de l'énergie électrique propre (Voir dessin N°l). Sachant que l'amplitude de la vague varie en fonction du temps, formant une mesurande (valeur) fluctuante, la position de l'ensemble des dispositifs par rapport à la surface de l'eau doit impérativement changer. L'unité (UCEV) est munie d'un système de mesure de l'amplitude moyenne de la vague en fonction du temps, régulant ainsi la position de chacun des dispositifs en le translatant à l'aide d'un système de guidage (J) vers une position optimale. Le système de freinage ( ) bloque le dispositif dans sa position, jusqu'au changement de l'amplitude moyenne de la vague. Ainsi le système capte les énergies des vagues quelque soit l'amplitude de cette dernière « Faible, Moyenne ou élevée). A double acting cylinder (Ç) is embedded in the guide cylinder (B) by means of a mounting bracket (E). The piston (A) which is connected to the rod of the double-acting cylinder (Ç), transmits its movements to the piston of the latter. During the up and down movements of the piston of the double-acting cylinder (Ç). The latter pushes the hydraulic oil to the one-way hydraulic system, whether up or down, using a set of valves (D). The latter also makes it possible to extract hydraulic oil in the double-acting cylinder (Ç) through the hydraulic return circuit in one direction "whatever the up or down movement". The aisle hydraulic system is connected to the inlet of a hydraulic motor (H). The hydraulic return circuit, is also connected to the output of the hydraulic motor (H) (see 3D view No. 7 and drawing No. 1). Thus the flow of the hydraulic oil is converted into a rotational movement of the motor axis (H) which is connected to the axis of an electric power generator (G) through a speed multiplier (See view 3D No. 6), thereby generating clean electrical energy (See drawing No. 1). Knowing that the amplitude of the wave varies with time, forming a fluctuating measurand (value), the position of the set of devices relative to the surface of the water must imperatively change. The unit (UCEV) is provided with a system for measuring the average amplitude of the wave as a function of time, thus regulating the position of each of the devices by translating it by means of a guidance system (J ) to an optimal position. The braking system () locks the device in its position until the change in the average amplitude of the wave. Thus the system captures the wave energies whatever the amplitude of the latter "Low, Medium or High).

Claims

Revendications claims
Une Série de dispositifs, formant une unité de conversion de l'énergie des vagues (UCEV), en une énergie mécanique puis électrique. Chaque dispositif de 1 à n (voir Dessin N°l) est constitué d'un piston (A) muni d'un clapet (I) et translatant, en montée et en descente, dans un cylindre de guidage (B). Une robe pivotante (F), disposant d'une forme spécifique, est montée à la partie inférieure du cylindre (B). Le piston (A) qui est lié à la tige du vérin à double effet (C), transmet ses mouvements au piston de ce dernier. Ce vérin (C) est fixé au cylindre (B) par un système de fixation (E). Un jeu de clapets (D) assure un flux d'huile hydraulique à l'intérieur des circuits hydrauliques « d'allée et de retour » en mono-sens quelque soit le mouvement, montée ou descente. Les circuits hydrauliques « d'allée et de retour » sont reliés à un moteur hydraulique (H) qui est de sa part connecté à l'axe d'un générateur de courant électrique (G) et ce à travers un multiplicateur de vitesse. L'ensemble des dispositifs est maintenu dans une position optimale par rapport à la surface de l'eau et ce en fonction de l'amplitude moyenne des vagues, à l'aide d'un système de régulation (J et K). A series of devices, forming a wave energy conversion unit (UCEV), into mechanical and electrical energy. Each device 1 to n (see Drawing No. 1) consists of a piston (A) provided with a valve (I) and translating, up and down, in a guide cylinder (B). A pivoting dress (F) having a specific shape is mounted at the bottom of the cylinder (B). The piston (A) which is connected to the rod of the double-acting cylinder (C), transmits its movements to the piston of the latter. This jack (C) is fixed to the cylinder (B) by a fastening system (E). A set of valves (D) ensures a flow of hydraulic oil inside the "drive and return" hydraulic circuits in one direction regardless of the movement, up or down. The "aisle and return" hydraulic circuits are connected to a hydraulic motor (H) which is connected to the axis of an electric power generator (G) and this through a speed multiplier. The set of devices is maintained in an optimal position with respect to the surface of the water and this according to the average amplitude of the waves, using a control system (J and K).
Selon la revendication 1, le fonctionnement et/ou le rendement de l'UCEV sont indépendants de la période des vagues. Par conséquent, l'implantation, la répartition et l'emplacement des dispositifs peut se faire d'une manière aléatoire.  According to claim 1, the operation and / or the performance of the UCEV are independent of the wave period. Therefore, the implantation, distribution and location of the devices can be done in a random manner.
Selon la revendication 1 le fonctionnement et/ou le rendement de l'UCEV sont indépendants de l'amplitude des vagues et ce grâce au vérin à double effets (C) et au jeu de clapet (D). Ainsi l'amorçage de l'UCEV, le rendant productif, se déclenche à des faibles amplitudes de vague. 4- Selon la revendication 1, le fonctionnement et/ou le rendement de l'UCEV sont indépendants du sens de propagation de la vague et ce grâce à la robe (F), qui est munie d'un gouvernail, lui permettant de tourner et de se positionner face à la vague (Voir vue 3D N°5). According to claim 1 the operation and / or the performance of the UCEV are independent of the amplitude of the waves and this thanks to the double-acting jack (C) and the valve set (D). Thus the booting of the UCEV, making it productive, is triggered at low amplitudes of wave. 4- According to claim 1, the operation and / or the performance of the UCEV are independent of the direction of propagation of the wave and this thanks to the dress (F), which is provided with a rudder, allowing it to turn and to position yourself in front of the wave (See 3D view N ° 5).
5- Selon les revendications 1, 2, 3 et 4, cette UCEV a l'avantage d'être monté en parallèle (une infinité d'unités) ; par conséquent l'énergie totale captée est la somme des énergies fournies par chaque dispositif séparément.  5- According to claims 1, 2, 3 and 4, this UCEV has the advantage of being connected in parallel (an infinity of units); therefore the total energy captured is the sum of the energies provided by each device separately.
6- Comparant aux autres systèmes exploitants l'énergie des vagues et selon les revendications 1 et 3, cette UCEV capte les énergies relatives à chaque position, quelque soit l'amplitude moyenne des vagues en fonction du temps (Faible, Moyenne ou élevée), à l'aide d'un système (J et K) régulant sa position par rapport à la surface de la vague.  6- Comparing with other operating systems the wave energy and according to claims 1 and 3, this UCEV captures the energies relative to each position, whatever the average amplitude of the waves as a function of time (low, medium or high), using a system (J and K) regulating its position relative to the surface of the wave.
7- Selon la Revendication 1, l'UCEV convertie l'ensemble des énergies longitudinales et ondulatoire de la vague à l'aide de la robe (F) ayant une forme spécifique.  7- According to Claim 1, the UCEV converts all the longitudinal and wave energies of the wave by means of the dress (F) having a specific shape.
8- Selon la Revendication 1, le piston (A) n'exploite pas seulement l'énergie de la vague durant sa phase montée, mais aussi bien l'énergie potentielle de la quantité d'eau déjà piégée à l'intérieur du cylindre (B) pe dant la phase de descente et ce grâce au clapet (I).  8- According to Claim 1, the piston (A) does not only use the energy of the wave during its mounted phase, but also the potential energy of the quantity of water already trapped inside the cylinder ( B) during the descent phase thanks to the flap (I).
9- Selon les revendications 1 et 5, l'avantage de l'UCEV consiste en l'indépendance et l'autonomie fonctionnelle entre les différents dispositifs qui la composent et continue à produire de l'énergie, même en cas d'arrêt d'un ou de plusieurs de ses dispositifs.  9- According to claims 1 and 5, the advantage of the UCEV consists in the independence and functional autonomy between the various devices that compose it and continues to produce energy, even in the event of a shutdown. one or more of its devices.
10- Selon l'une quelconque des revendications précédentes, l'UCEV peut servir comme "brise-lame" à proximité des zones portuaires et/ou côtières résidentielles et offre un moyen de protection producteur d'énergie pouvant ainsi remplacer les solutions passives existantes (rochers).  10- According to any one of the preceding claims, the UCEV can serve as a "breakwater" near the harbor and / or coastal residential areas and offers an energy-generating protection means that can thus replace the existing passive solutions ( rocks).
PCT/TN2010/000002 2010-06-09 2010-07-05 Unit for converting wave energy WO2011155906A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10742918.5A EP2580466A1 (en) 2010-06-09 2010-07-05 Unit for converting wave energy

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Application Number Priority Date Filing Date Title
TN10267 2010-06-09
TNTN2010/0267 2010-06-09

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2993939A1 (en) * 2012-07-27 2014-01-31 Philippe Lacoste Hydraulic energy production device, has cylinder connected to container, where deployed position of cylinder corresponds to lower position of container, and compressed position of cylinder corresponds to higher position of container
CN103790762A (en) * 2012-10-31 2014-05-14 财团法人工业技术研究院 Wave power generation system and hydraulic component thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083186A (en) * 1976-12-22 1978-04-11 Jackson Sr Andrew W Apparatus and method for converting hydrostatic energy to electrical energy
US4295783A (en) * 1978-02-09 1981-10-20 Lebost Barry Alan Fluid turbine
WO1985004219A1 (en) * 1984-03-12 1985-09-26 Wave Power Industries, Ltd. Wave powered generator
FR2800423A1 (en) * 1999-10-27 2001-05-04 Jean Marc Albert Janody Wave energy pump has float on air/water surface which is connected by a piston rod to a spring return piston in a submerged cylinder with non return valves mounted on the bottom of the water

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083186A (en) * 1976-12-22 1978-04-11 Jackson Sr Andrew W Apparatus and method for converting hydrostatic energy to electrical energy
US4295783A (en) * 1978-02-09 1981-10-20 Lebost Barry Alan Fluid turbine
WO1985004219A1 (en) * 1984-03-12 1985-09-26 Wave Power Industries, Ltd. Wave powered generator
FR2800423A1 (en) * 1999-10-27 2001-05-04 Jean Marc Albert Janody Wave energy pump has float on air/water surface which is connected by a piston rod to a spring return piston in a submerged cylinder with non return valves mounted on the bottom of the water

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2993939A1 (en) * 2012-07-27 2014-01-31 Philippe Lacoste Hydraulic energy production device, has cylinder connected to container, where deployed position of cylinder corresponds to lower position of container, and compressed position of cylinder corresponds to higher position of container
CN103790762A (en) * 2012-10-31 2014-05-14 财团法人工业技术研究院 Wave power generation system and hydraulic component thereof
EP2728165A3 (en) * 2012-10-31 2015-11-18 Industrial Technology Research Institute Wave power generation system and hydraulic component thereof
US9234493B2 (en) 2012-10-31 2016-01-12 Industrial Technology Research Institute Wave power generation system and hydraulic component thereof

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