WO2015144956A1 - Dispositif de génération d'énergie électrique à partir d'énergie houlomotrice - Google Patents

Dispositif de génération d'énergie électrique à partir d'énergie houlomotrice Download PDF

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Publication number
WO2015144956A1
WO2015144956A1 PCT/ES2015/070209 ES2015070209W WO2015144956A1 WO 2015144956 A1 WO2015144956 A1 WO 2015144956A1 ES 2015070209 W ES2015070209 W ES 2015070209W WO 2015144956 A1 WO2015144956 A1 WO 2015144956A1
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WO
WIPO (PCT)
Prior art keywords
stern
bow
floating body
mass
pendulum
Prior art date
Application number
PCT/ES2015/070209
Other languages
English (en)
Spanish (es)
Inventor
Alejandro GONZÁLEZ ANDREU
Alberto PIZA SEÑAS
Enrique MUÑOZ ARJONA
Francisco Javier MARÍN RODRÍGUEZ
Remy Pascal
Ángel MARTÍN - BEJARANO SÁNCHEZ
Cristina RODRÍGUEZ BORDALLO
Alejandro Torres Molina
Antonio CAMPOS MARÍN
Antonio Luis RUIZ MONTERO
Francisco MONTERO CHACÓN
Franciso Javier MARÍN RODRÍGUEZ
César VIDAL PASCUAL
Raúl GUANCHE GARCÍA
Original Assignee
Abengoa Seapower, S.A.
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 Abengoa Seapower, S.A. filed Critical Abengoa Seapower, S.A.
Publication of WO2015144956A1 publication Critical patent/WO2015144956A1/fr

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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
    • 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
    • F05B2250/00—Geometry
    • F05B2250/40—Movement of component
    • F05B2250/44—Movement of component one element moving inside another one, e.g. wave-operated member (wom) moving inside another member (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
    • F05B2250/00—Geometry
    • F05B2250/70—Shape
    • F05B2250/71—Shape curved
    • F05B2250/711—Shape curved convex
    • 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 falls within! field of marine electricity generating devices and, particularly, in the field of electric power generating devices from wave energy.
  • Electric power generating devices from wave energy use the energy inherent in waves in seas and oceans to generate electricity. Contrary to tidal devices do not take advantage of the energy difference between low tide and high tide, but the continuous movement of sea waves.
  • inertial devices such as those described in patent documents US8289365B2 (Clemenf et al.), US2013 / 033039A1 (Gordilio) and US2010 / 01 1539A1 (Paakinen), such as the WELLO PENGUIN device of the Finnish firm WELLO OY and the SEAREV device, both inertial devices with solid internal masses, or devices with reference mass constituted of water such as devices such as the so-called UGEN described in "Fonseca, N. , & Pessoa, J. (2013). Numerical modeling of a wave energy converter based on U-shaped interior oscillating water column. Applied Ocean Research, 40, 60-73.
  • wave devices extract energy from the waves by damping the movement of the device excited by the waves.
  • a kinetic reference is needed in order to obtain a relative movement between this body and a second body.
  • Inertial devices usually refer to a category of wave device that uses the energy generated by the damping of the relative movement between the main body of the device and an internal mass associated with the device that acts as an inertial reference.
  • This mass can be a solid or a liquid, and energy can be used to generate electricity or other products to be exported (desalinated water in the case of the DUCK device).
  • AND! document PT105388B relating to the aforementioned UGEN device describes a device provided with a chamber with a water column for producing energy, and mention is made of a specific geometry of the floating body, this being described as asymmetric. Thanks to this geometry, the floating device allows coupling with drift and pitch movements.
  • a floating body with a stern, a bow, a bottom bottom that extends between the stern and bow, a width, an interior space and an upper base that extends between the stern and bow and a defined length between a foreground transverse that, seen in profile, passes through a rear end point at an intermediate height of the stern, as well as a second transverse piano that passes through a front end point in an upper part of the bow;
  • a mass inertia! selected between solid inertial masses and masses inertia! is liquid, and combinations of such masses, housed in the interior space of the floating body so that it is capable of maintaining an inertial position inside the floating body when performing oscillating movements in response to sea waves;
  • a power extraction system connected to an electricity generating system mounted on the floating body, capable of generating electrical energy from relative movements between the inertial mass and the float device;
  • At least one anchoring device connectable to a anchoring system that allows the floating body to keep its bow facing the waves and prevents translation of the floating body beyond a distance of a predetermined anchoring position;
  • the stern comprises an outer face that has a convex contour in the form of a surface of a first segment of rectangular transverse cylinder extending between opposite sides of the stern;
  • the external face of the stern comprises a lower convex section and an upper convex section which, seen in lateral profile, are joined at the rear end point at the intermediate height of the stern and extend from there each in the direction of the bow;
  • the bow comprises an external face having a surface-shaped convex contour of a second segment of rectangular transverse cylinder extending between opposite sides of the bow;
  • the outer face of the bow extends between the front part of the lower section and, seen in lateral profile, the front end point at the top of the bow; the external face of the stern and the external face of the bow extend between a lower piano and a coplanar upper plane with the upper base of the floating body; the outer face of the stern extends along a first arc of at least 180 ° and the external face of the bow extends along a second arc of at most 90 °,
  • the mass inertia! located in the interior space of the floating body can represent between 20% and 40% by weight of the volume of seawater displaced by the device generator.
  • the geometry of the floating body maximizes the pitching movements, while ensuring longitudinal stability and minimizing the generation of waves caused by the floating body, so that the dissipation of energy inherent in the waves is reduced and the energy is maximized of the waves transmitted to the inertial mass
  • the shape of the stern minimizes the resistance to the longitudinal oscillation of the floating body, minimizing the generation of waves radiated by the ship.
  • the closed shape of the floating body allows the essential components to be accommodated in its interior space, which allows to reduce the effect of corrosion caused by the marine environment.
  • the anchoring system is designed to allow an anchoring of the floating body at the bottom of the sea.
  • the anchoring system is adapted so that the floating body maintains its position while limiting as little as possible its ability to convert wave energy into movement of altered, balancing and pitching, that is, the floating body is anchored at the bottom of the sea , but with freedom of movement.
  • the anchor what is to avoid is excessive movement or displacement of the device in the plane (translations greater than 3 meters).
  • the inertial mass acts as a reference so that, when the floating body moves in pitch, a relative movement is generated between the reference mass and the floating body. Energy is extracted from this relative movement and converted into electricity.
  • this comprises three flexible linear elements, such as chains or ends, whose upper ends are connected to a common anchoring device located at the point of rotation of the floating body, and whose lower ends are subject to each other.
  • anchoring blocks such as concrete blocks, arranged at the bottom of the sea in radial positions spaced apart from 120 °.
  • the stern of the floating device has a maximum longitudinal extension between said first transverse piano and a third transverse piano that passes through a first intermediate point that delimits the bottom bottom in front of the stern of the floating body and a second intermediate point that delimits the back of the upper base in front of the stern.
  • the upper base of the floating body extends between the third transverse plane and the second transverse piano.
  • the bow has a maximum longitudinal extension between the second transverse plane and a fourth transverse plane that passes through a third intermediate point that delimits the bottom bottom in front of the bow and a fourth intermediate point that delimits the upper base in front of the bow.
  • the bottom bottom has a defined length between the third and the fourth transverse piano.
  • the longitudinal extension of the bow can be between 80% and 150% greater, preferably between 90% and 120% greater, and more preferably 100% greater, than the maximum longitudinal extension of the stern, while the length
  • the bottom bottom may be between 80% and 30% smaller, preferably between 60% and 40% less, and more preferably 50% smaller, than the maximum longitudinal extension of the stern.
  • the lower convex section of the stern's outer face may have a height greater than the upper convex section or, alternatively, a height smaller than the upper convex section. This allows the convex sections of the outer face of the stern to be asymmetrical with respect to their shapes.
  • the lower convex section of the external side of the stern has a height equal to the upper convex section, which leads to a symmetrical shape of the convex sections of the external face of the stern.
  • the external side of the stern has a semicircular longitudinal section with a first radius corresponding to the maximum longitudinal extension of the stern and the external face of the bow has a longitudinal section of a quarter-quarter segment. circle defined by a second corresponding radius a! a maximum longitudinal extension of the bow.
  • the first radius is less long than the second radius, while the length of the bottom bottom is less than the first radius.
  • Ri is e! first radius
  • R2 is ef second radius
  • d is the length of! bottom bottom
  • L is the length
  • n is a real number greater than or equal to 1 and less than 4.
  • the length of the bottom bottom is shorter, preferably 50% shorter, than the first radius.
  • the solid inertial mass comprises at least one main pendulum connected to a transverse axis arranged in the interior space of the floating body. This transverse axis is in turn connected to the power extraction system.
  • the inertia mass! it can comprise two main pendulums of equal masses, or a main pendulum and at least one additional pendulum of greater or lesser mass than the main pendulum.
  • the main pendulum can be arranged between at least one pair of additional pendulums, which guarantees the transverse stability of the device, arranged in the interior space of the floating body, each of the additional pendulums connected to a individual transverse axis connected in turn to the power extraction system.
  • Each pendulum of each pair of additional pendulums can have a mass less or greater than the main pendulum that will be established according to the resonance period that is to be achieved, that is, for small masses resonances will be achieved at large frequencies and for large masses will be achieved a resonance at smaller frequencies.
  • each additional pendulum of a pair may be arranged next to one of the additional pendulums closest to the main pendulum.
  • each pendulum can be connected to an individual axis, or some or all of the pendulums can share a common axis. In another embodiment some pendulums may be connected in group to a common axis and others in another group to another common axis or to individual axes. Each axis can be individually connected to its own electricity generator, or some or all axes can be connected to one or more shared electricity generators.
  • the inertial mass comprises a single main pendulum free to move in any degree of freedom and connected to the power extraction system, by means of a converter mechanism, so that the single main pendulum transmits the movements of the floating body caused by waves to the converter mechanism.
  • the inertial mass can also comprise at least one complementary pendulum connected to a longitudinal axis arranged in the interior space of the floating body.
  • the power extraction system may be electro-mechanical, such as an electro-mechanical system with a rotation axis of the electricity generator perpendicular to the oscillation axis of the pendulum in which case the oscillation axis is physically connected to the generating device, or a hydraulic system, such as a hydraulic system in which the rotation axis of the electricity generator is jointly and severally connected to a hydraulic pump, preferably of oil, connected on the one hand to the oscillation axis of the pendulum and, on the other, to a motor hydraulic.
  • the oscillating movement of the floating body due to the waves causes the pendulum to move, whose axis activates the electro-mechanical generator or the hydraulic pump.
  • electric power is produced directly
  • the hydraulic fluid would be pumped to a hydraulic motor of the electricity generator.
  • the generated electrical energy is poured into the network through a cable that connects the device to the mainland power grid.
  • the center of gravity of the pendulum be as far as possible from the center of gravity of the ship. Because the center of gravity of the pendulum is a constant variable over time, the only variable that can be modified is the center of gravity of! ship.
  • the liquid inertial mass comprises a mass of liquid confined in at least one tank module with an annular closed circuit comprising an underpass and an overpass as well as a rear passage and a forward passage through from which the underpass and the overpass communicate.
  • the mass of the liquid forms a column leaving the underpass completely filled and partially the front and back passage are completely filled.
  • the overpass will be filled with gas along with the parts of the front and rear pass that do not contain liquid.
  • the annular circuit extends longitudinally in the interior space of the floating body between the stern and the bow, which allows the mass of liquid to move in the annular closed circuit towards the stern or towards the bow of the floating body , depending on the oscillating movements made by the floating body in response to sea waves.
  • the power extraction system may comprise at least one turbine selected from pneumatic turbines arranged in pneumatic connection with an overpass of the annular closed circuit that is filled with gas, hydraulic turbines arranged in hydraulic connection with an underpass of the annular closed circuit, and combinations of such turbines.
  • the electricity generator can be located inside or outside the closed circuit.
  • an arrangement can be used in which two or more annular closed circuits share the turbine. This can be done by connecting the overpasses of said circuits through a conduit and introducing the turbine into that conduit.
  • a plurality of tank modules when, according to this other particular embodiment, a plurality of tank modules is provided, at least one of them may contain a mass of water greater than the mass of water contained in other tank modules, so that the The volume of water mass contained in each tank module is adapted to a particular type of swell whose waves cause oscillating movements of the floating body.
  • a membrane or plate In the case of pneumatic turbines, it is convenient that the liquid does not come into contact with the pneumatic turbine, so to avoid this problem a membrane or plate could be coupled between the liquid and the gas.
  • the pneumatic connection may comprise a pneumatic connection system selected between individual pneumatic connection systems that connect a tank module with a single individual pneumatic turbine, common pneumatic connection systems that connect several tank modules with a shared pneumatic turbine, and combinations of Such pneumatic connection systems.
  • the hydraulic connection may comprise a hydraulic connection system selected from individual hydraulic connection systems that connect a tank module with a single individual hydraulic turbine, shared hydraulic connection systems that connect several tank modules with a shared hydraulic turbine , and combinations of such hydraulic connection systems.
  • the height at which the liquid column has to reach in the annular closed circuit depends on the draft of the floating body, that is, the part of the floating body submerged in seawater.
  • the draft influences the total weight of the generating device and the location of its center of gravity.
  • the draft depends on the height of the wave. For small waves, smaller than 4 m, the draft must be greater than the operating draft (10 m in a preferred embodiment), being lower for the opposite case (heights of waves greater than 4 m).
  • the shape of the floating body and the distribution of the weights of the generating device are designed to maximize pitching movement over a wider range of incident wave periods. Additionally, the ability to extract energy from the device to convert the energy from the incident wave can Be controlled in multiple ways.
  • the distribution of weights in the floating body can be altered to adapt to the typical period of the sea state.
  • at least one chamber with ballast water is added to modify the center of gravity of the floating body.
  • the inertia of the inertial mass can be regulated to vary its resonance periods.
  • this can be achieved, for example, by varying the radius of inertia of the pendulum of its connecting element to its oscillation axis. In this way this length can vary, for example, depending on the type of sea.
  • a low peak period such as the Mediterranean Sea
  • the interaction between the floating body and the pendulum can be maximized, increasing the length of the radius of the pendulum, while in seas with a period of High peak (Tp> 1 1 sg), such as the Pacific Ocean, the length of the pendulum can be reduced to maximize that interaction between the floating body and the pendulum.
  • the gas pressure inside the annular closed circuit can be regulated, to adapt the characteristics of the turbines to the hydrodynamic needs of the generating device, for which valves can be arranged to regulate the gas pressure in the circuit.
  • the gas pressure in the circuit is the atmospheric pressure, but it could be given some pressure to extract more energy (the higher the pressure, the more energy can be obtained from the turbine). This pressure increase has to reach a balance with the size of the device.
  • the generating device according to the present invention is very versatile in terms of the use of wave energy for the generation of electrical energy.
  • this allows, based on the external geometry of its floating body, to capture energy, by choosing the arrangement of its inertial mass in parallel or perpendicular to the direction of the waves, the device being able to absorb most of the degrees of freedom, such as forward movement in the direction of the waves corresponding to the X axis in the coordinate system, altered corresponding to the Z axis in the coordinate system, pitch corresponding to rotations with respect to the X axis, and balancing corresponding to rotations with respect to the Y axis, perpendicular to the direction of the waves.
  • Figure 1 is a schematic profile view showing the external geometry of a first embodiment of the floating body of a device according to the invention.
  • Figure 2 is a schematic rear perspective view of the floating body shown in Figure 1, inside which a first embodiment of an inertial mass is arranged.
  • Figure 3 is a schematic rear perspective view of the floating body shown in Figure 1, in which a second embodiment of an inertial mass is arranged.
  • Figure 4 is a schematic view in longitudinal section of the illustrated floating body in figure 2
  • Figure 5 is a schematic view in longitudinal section of the floating body illustrated in Figure 1, in which a third embodiment of an inertial mass is arranged.
  • Figure 6 is a schematic view in longitudinal section of the floating body illustrated in Figure 1, in which a fourth embodiment of an inertial mass is arranged,
  • Figure 7 is a schematic sectional view along the line l-l that can be seen in Figure 6.
  • Figure 8 is a schematic sectional view along the line ⁇ - ⁇ that can be seen in Figure 8.
  • Figures 9A-9C show a sequence of movements of the floating body shown in Figure 1 floating in waves of the sea.
  • Figure 10 is a schematic view in longitudinal section of the floating body illustrated in Figure 1, in which a fifth embodiment of an inertial mass is arranged.
  • Figure 1 1 is a schematic view in iongitudinal section of the floating body illustrated in Figure 1, in which a sixth embodiment of an inertial mass is arranged.
  • Figure 12 is a side plan view of an embodiment of the mooring system for the floating body illustrated in Figure 1.
  • the floating body -1 - shown in Figures 1 to 3 comprises an interior space -1 a-, an upper base -1 b, a stern -2-, a bow -3-, and a lower bottom -4- which extends between the stern -2- and the bow -3-, AND! floating body has a siora -L- defined between a transverse foreground! - ⁇ - vertical that passes through a rear end point - ⁇ - at an intermediate height of the stern -2-, as well as a second transverse plane -PT 2 - vertical that passes through a front end point -PED- at the top from the bow -3-,
  • the floating body -1- has a uniform width -A- along its length -L-.
  • the stern -2- is defined longitudinally between the first transverse plane -PTi- and a third transverse plane -PT3- vertical that passes through a first intermediate point -PI 1 - which delimits the rear part of the bottom bottom -4- of the stern -2- and by a second intermediate point -Pl 2 - which delimits the rear part of the upper base -1 b- in front of the stern - 2-.
  • the upper base -1 b- of the floating body -1- extends between this third transverse piano -PT3- and the mentioned second transverse plane -PT2-.
  • the bow -3- is defined longitudinally between the second transverse plane -PT 2 - and a fourth transverse piano -PT 4 - vertical that passes through a third intermediate point -PI3- that separates the front part of the bottom bottom - 4- from the bow -3- and by a fourth intermediate point -Pl 4 - which separates the upper base -1 b- from the floating body - 1- from the bow -3-.
  • the bottom bottom -4- has a length -d- defined between the third -PT3- and the fourth transverse plane -PT 4 -.
  • the stern -2- comprises an outer face -5- which has a convex contour in the form of a surface of a first segment of rectangular transverse cylinder that extends between opposite sides of the stern -2-, and which has a lower convex section - 5a- and an upper convex section -5b-.
  • the bow -3- comprises an outer face - 6- which has a convex contour in the form of a surface of a second segment of rectangular rectangular cylinder that extends between opposite sides of the stern -2-, and which also has a lower convex section -6a- and an upper convex section - 6b-.
  • the lower convex sections -5a, 6a-and the convex sections upper -5b, 8b- extend between a lower plane -Pl- coplanar with the bottom -4- of the floating body -1 - and an upper plane -PS- coplanar with the upper base -1 b- of the floating body -1 - .
  • the lower convex section -5a- of the outer face -5- of the stern -2- extends from the first transverse plane - ⁇ - downwards in the direction of the third transverse plane -PT 3 - until joining the bottom -4- of the floating body -1 -, while the upper convex section -5b- of the external face -5- of the stern -2- extends from the first transverse piano -PTi- upwards towards the third transverse plane -PT 3 - until joining the upper base -1 b- of the floating body -1 -.
  • the first circular cylinder segment corresponding to the outer face -5- of the stern -2- has a semicircular section with a first radius -R1 -, and extends in correspondence with a first arc of a first angle- ⁇ - 180 °.
  • the lower convex section -6a- of the outer face -8- of the bow -3- extends-, starting from the bottom bottom -4-, from the fourth vertical plane -PT 4 -upwards towards the base upper -1 b- of the floating body -1 - moving away from the bottom bottom -4-, while the upper convex section -6b- of the outer face -8- of the bow -3- extends from the lower convex section -6a - until reaching the second transverse plane -PT 2 - at the height of the upper plane -PS- of the floating body -1 -.
  • the second arc is defined between the upper plane -PS- and the fourth transverse plane -PT4-.
  • the second circular cylinder segment corresponding to the outer face -8- of the bow -3- has a quarter circle section with a second radius R2, and extends in correspondence with a second arc with a second angle - ⁇ - of 90 °,
  • the angles - ⁇ , ⁇ - of the respective convex contours of the external face -5- of the stern -2- and of the bow -3- total a total of 270 °.
  • the width -A- of the floating body -1 - is determined based on the energy to be absorbed. If the wave front is larger, a wider width is convenient for greater energy extraction. The width -A- will also give stability to the floating body -1 -.
  • the total length L of the floating body -1 - can be, for a preferred case of the invention, between 20m and 40m, while the permissible width -A- could be at least 15 m for a length of 40 m.
  • n 2
  • n 2
  • Figures 2 and 4 show an embodiment of! generating device, in which the inertial mass is formed by a set of pendulums -7, 7a, 7b- arranged in the interior space -1 a- of the floating body -1-, These figures show (like figures 5- 8 and 10-12) the floating body -1 - floating in a resting state on the surface -S- of! seawater.
  • the set of pendulums -7, 7a, 7b- comprises a main pendulum -7- of greater mass, a first pair of additional pendulums -7a- of medium mass and arranged on both sides of the central pendulum -7-, as well as a second pair of additional pendulums - 7b- of reduced mass and arranged on respective sides of the first pair of the second additional pendulums -7a-.
  • the pendulums -7, 7a, 7b- are connected through individual rods -8- to respective individual transverse axes -9- mounted on the floating body -1-,
  • the pendulums -7, 7a, 7b- are connected to the same transverse energy extraction line or to the same turbine in the case of cameras.
  • the pendulums -7, 7a, 7b- are arranged in such a way that the center of gravity of the device is at the point that allows the relative velocity between the pendulum -7, 7a, 7b- and the floating body -1- to be as much as possible For this, it is necessary that the center of gravity of the mass of each pendulum -7, 7a, 7b- be as far away from the center of gravity of the floating device -1-.
  • the center of gravity of the pendulums -7, 7a, 7b- is a constant variable over time, the only possible variable that can be modified is the center of gravity of the floating body -1-. It is possible to modify the center of gravity of the floating body -1- in a conventional way, by means of a change of liquid ballast, for example water, through hydraulic pumps (not shown in the figures) mounted on the floating body -1 - for this purpose.
  • This ballast can comprise water chambers (not shown in the figures).
  • the pitching of the floating body -1- due to the incident waves causes relative movements between the pendulum -7, 7a, 7b-, and its transverse axis -9-. These relative movements are used to drive, for example, an electro-mechanical generator that produces electric power directly, or a hydraulic pump that pumps oil to propel an electro-mechanical generator, or a multiplier device connected to an electricity generator (not shown in the figures).
  • the adaptation to the wave brake incident on the floating body of the generating device occurs depending on the number of pendulums -7, 7a, 7b- and the size of each of them, in order to allow a maximum of power of the pendulum assembly -7, 7a, 7b-.
  • FIGs 3 to 8 show an embodiment of the generating device, in which the inertial mass is formed by a mass of liquid -10-, such as seawater, fresh water or other type of liquid, confined in three tank modules - 1 1- independent.
  • Each tank module -1 1- comprises an annular closed circuit with an underpass -1 1 a-, an overpass -1 1 b- that are connected to each other by a rear passage -1 1 c- and a forward passage - 1 1 d-.
  • the mass of liquid -10- is contained in the lower passage -1 1 a- and up to a liquid level -10a- in the lateral rear-1 1 c- and forward -1 1 d- side steps, due to the effect of ⁇ The communicating vessels.
  • the steps ⁇ atera ⁇ es -1 1 c- and the upper step -1 1 b- are filled with a gas, such as air.
  • a gas such as air.
  • the transition elbows between the respective steps -1 1 a, 1 1 b, 1 1 c, 1 1 ⁇ are preferably rounded to reduce flow losses, although they can be bevel bevels.
  • a pneumatic turbine -12- connected to an electric generator is intercalated in an intermediate part of overpass -1 1 b- in a plane normal to the main direction of the swell.
  • the pneumatic turbine -12- limits the movement of the gas displaced by the liquid -10- caused by the swell incident on the floating body -1-.
  • a hydraulic turbine -13- connected to an electricity generator is interspersed in an intermediate part of the underpass - 1 1 a- in a plane normal to the main direction of the swell.
  • the hydraulic turbine -13- limits the movement of the liquid -10- with respect to the annular closed circuit, caused by the swell incident on the floating body -1-.
  • Tank modules -1 1- can be designed to have different sizes to accommodate different volumes of water masses in their closed circuits -10-, In this way and analogously to what is described above with reference to Figures 2 and 4, it allows each water body -10- to act in a different optimal way depending on the wave train that arrives. Not all bodies of water will be optimal for the same wave, but as a whole they will achieve an optimum for the use of the energy of all the incident waves in the floating body -1-
  • Pneumatic turbine systems -12- are especially useful in rough seas and, therefore, very energetic with greater swell frequency, while hydraulic turbine systems -13- are especially useful in quieter and therefore less seas Energetic with less frequency of waves, since the hydraulic turbines -13- require lower flow velocity of the water masses -1 1- than the pneumatic turbines -12-.
  • Figures 9A-9C illustrate three stages of the pitching movement of the float body -1- against the swell that moves in the direction of the arrow with white fill shown in both these figures and in Figures 4-8, 8 and 10-12 .
  • Figure 10 shows another embodiment of the generating device comprising, in addition to the pendulums -7, 7a, 7b- described above with reference to Figures 2 and 4, a complementary pendulum -T- connected through its rod -8'- to a longitudinal axis -9'-.
  • this complementary pendulum -7'- is to take advantage of the balancing movements of the floating body -1- for the generation of electrical energy, for which its longitudinal axis -9'- can be connected, for example and in analogy to the above described with respect to the transverse axis -9-, for example to an electro-mechanical generator that produces electric power directly, or a hydraulic pump that pumps oil to propel an electro-mechanical generator, or a multiplier device connected to a generator of electricity (not shown in the figures).
  • Figure 1 1 shows another embodiment of the generating device comprising a main pendulum -7 "- unique with a rod -8" connected to a conventional conversational device -9 "- which in turn is connected to, for example, a generator electromechanical that produces electricity directly, or a hydraulic pump that pumps oil to propel an electro-mechanical generator, or a multiplier device connected to an electricity generator (not shown in the figures).
  • the single pendulum -7 "- is free to move in any degree of freedom and transmits the movements of the floating body -1- caused by the swell through its rod -8" - to the converter device -9 "- .
  • Figure 12 illustrates an embodiment of a funding system whereby the floating body -1- is anchored at the bottom -F- of the sea.
  • the anchoring system comprises three flexible linear elements -14-, such as chains or ends, whose upper ends are connected to a common anchoring device -15- located at the point of rotation of the floating body -1-, and whose lower ends are subject to two anchoring blocks -16-, such as concrete blocks, arranged at the bottom -F- in radial positions spaced apart from each other at 120 °.
  • Figure 12 also shows an electrical cable -17- through which the electrical energy generated by the electricity generator is transmitted, in a conventional manner, to an electrical network that connects to the ground.
  • the invention is not limited to the specific embodiments that have been described but also covers, for example, the variants that can be made by the average person skilled in the art (for example, as regards the choice of materials, dimensions, components, configuration, etc.), within what follows from the claims.

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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

La présente invention concerne un dispositif de génération d'énergie électrique à partir d'énergie houlomotrice qui comprend un corps flottant (1) comportant un espace intérieur (1a) qui abrite une masse d'inertie (7, 7a, 7b, 7', 7'', 10) reliée à un système d'extraction de puissance et un dispositif d'ancrage (15), et qui présente sur la face externe (5) de la poupe (2) du corps flottant, un contour convexe en forme de surface d'un premier segment de cylindre rectangulaire transversal qui s'étend entre des côtés opposés de la poupe (2), tandis que la face externe (6) de sa proue (3) présente un contour convexe en forme de surface d'un second segment de cylindre rectangulaire transversal qui s'étend entre des côtés opposés de la proue (3), ladite face externe (5) de la poupe (2) s'étendant le long d'un premier arc (α) d'au moins 180° et la face externe (6) de la proue (3) s'étendant le long d'un second arc (β) de 90° au maximum.
PCT/ES2015/070209 2014-03-27 2015-03-23 Dispositif de génération d'énergie électrique à partir d'énergie houlomotrice WO2015144956A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201430438A ES2549369B1 (es) 2014-03-27 2014-03-27 Dispositivo generador de energía eléctrica a partir de energía undimotriz
ESP201430438 2014-03-27

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019081659A1 (fr) * 2017-10-26 2019-05-02 Seaturns Dispositif houlomoteur flottant
WO2022079096A1 (fr) * 2020-10-13 2022-04-21 Luxembourg Institute Of Science And Technology (List) Système de collecte d'énergie houlomotrice
TWI830128B (zh) * 2022-01-22 2024-01-21 童瑞祺 海浪發電裝置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110630A (en) * 1977-04-01 1978-08-29 Hendel Frank J Wave powered electric generator
US4258269A (en) * 1979-05-03 1981-03-24 Junjiro Tsubota Wave power generator
US20110169265A1 (en) * 2010-01-12 2011-07-14 Shih-Hsiung Chen Seesaw-type wave power generating device
US20120001432A1 (en) * 2004-10-15 2012-01-05 Alain Clement Apparatus for converting wave energy into electric power
US20130033039A1 (en) * 2010-01-21 2013-02-07 Echenique Gordillo Inigo Balance wave energy-electricity generation system
CN203796483U (zh) * 2013-09-30 2014-08-27 无锡津天阳激光电子有限公司 一种船型摆锤式海浪发电机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4110630A (en) * 1977-04-01 1978-08-29 Hendel Frank J Wave powered electric generator
US4258269A (en) * 1979-05-03 1981-03-24 Junjiro Tsubota Wave power generator
US20120001432A1 (en) * 2004-10-15 2012-01-05 Alain Clement Apparatus for converting wave energy into electric power
US20110169265A1 (en) * 2010-01-12 2011-07-14 Shih-Hsiung Chen Seesaw-type wave power generating device
US20130033039A1 (en) * 2010-01-21 2013-02-07 Echenique Gordillo Inigo Balance wave energy-electricity generation system
CN203796483U (zh) * 2013-09-30 2014-08-27 无锡津天阳激光电子有限公司 一种船型摆锤式海浪发电机

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019081659A1 (fr) * 2017-10-26 2019-05-02 Seaturns Dispositif houlomoteur flottant
FR3073013A1 (fr) * 2017-10-26 2019-05-03 Seaturns Dispositif houlomoteur flottant
CN111373141A (zh) * 2017-10-26 2020-07-03 希特恩斯公司 浮动的波能转换器
US11174830B2 (en) 2017-10-26 2021-11-16 Seaturns Floating wave energy device
WO2022079096A1 (fr) * 2020-10-13 2022-04-21 Luxembourg Institute Of Science And Technology (List) Système de collecte d'énergie houlomotrice
TWI830128B (zh) * 2022-01-22 2024-01-21 童瑞祺 海浪發電裝置

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ES2549369A1 (es) 2015-10-27

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