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WO2009102210A1 - Procédé pour convertir l'énergie des vagues, centrale électrique pour la mise en oeuvre du procédé et centrale houlomotrice - Google Patents

Procédé pour convertir l'énergie des vagues, centrale électrique pour la mise en oeuvre du procédé et centrale houlomotrice Download PDF

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Publication number
WO2009102210A1
WO2009102210A1 PCT/NO2009/000035 NO2009000035W WO2009102210A1 WO 2009102210 A1 WO2009102210 A1 WO 2009102210A1 NO 2009000035 W NO2009000035 W NO 2009000035W WO 2009102210 A1 WO2009102210 A1 WO 2009102210A1
Authority
WO
WIPO (PCT)
Prior art keywords
power plant
piston
energy
units
wave
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/NO2009/000035
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English (en)
Inventor
Reidar Vaardal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to EP09710127.3A priority Critical patent/EP2240686A4/fr
Publication of WO2009102210A1 publication Critical patent/WO2009102210A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • 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
    • 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 relates to a method for conversion of sea wave energy as described in the first part of claim 1, a power plant unit to implement this method, as described in the first part of claim 4 and a sea wave power plant as described in the first part of claim 11.
  • Coastal based wave power plants are also known, based on gathering of the water from the waves in reservoir above the sea level, and with water turbines which is driven by the gathered water. Neither have been suitable for practical use, mainly due to the high costs.
  • the main purpose with the invention is to create a new concept for energy conversion, which may form the basis for a wave power plant that withstands all types of weather. In addition it must give satisfying energy production compared to investment and operational costs. It is also a purpose to create a sea wave power plant which does not leave practical or unsavoury hurdles in traffic areas in the sea, and which may be a hurdle for fishing and other activity at the sea.
  • sea wave power plant which in a simple way may removed from the sea area or at least out of the area of influence for the sea waves in periods where the influence from the sea waves may cause damage, for example in a storm.
  • the invention is described in the claims. It primary relates to a method for conversion of sea wave energy to a form of energy which may be brought into en energy network, in particular electrical, where water waves is lead into contact with a moveable element which is connected to an energy converter, in particular an electrical generator.
  • the sea waves are lead into a tubular channel with an axially moveable piston which is connected to a rotation converter connected to a converter for generation of transferable energy, in particular electrical.
  • the energy in the wave movement decreases when the sea waves approaches the sea shore, and come into shallow waters. Therefore it has not been regarded as possible to achieve economic energy conversion in this area.
  • the invention makes this possible, mainly because the units may be built and operated in a simple and cheap way, and because costly protection measures against storm, which known sea wave power plants are depending on, is not required.
  • a power plant unit as described in claim 4 may be used.
  • This comprises a piston which is suspended axially moveable in a tubular channel, and which piston rod is connected to a rotational converter.
  • the rotational converter may be a ball screw arranged as described in claim 5.
  • the power plant unit as described in claim 7 has an outlet axle which carries or is connected to a flywheel via a free wheel mechanism, which may be integrated with the flywheel.
  • the outlet axle may also be designed as described in claim 8, arranged to engage a gearwheel or a similar rotary part, which is common for more power plant units.
  • the free wheel mechanism will then have to be integrated in the axle or its connection to the rotary part.
  • whip preferably with remote control, about a transverse axle, to be able to adjust the front towards the incoming sea waves, as described in claim 10.
  • Fig. 1 shows a vertical cross view through one embodiment of a power plant unit according to the invention
  • Fig. 2 shows a perspective view of a wave power plant according to the invention, composed by several power plant units as shown in Fig. 1,
  • Fig. 3 shows a schematic and sectioned perspective view of a further embodiment of the invention, with four piston units, the outlet axles engaging a common gear wheel
  • Fig. 4 shows a schematic and sectioned sideview of still a further embodiment of the invention, with three piston units powering a common axle over a belt.
  • the power plant unit 11 in Fig. 1 is build with a tubular channel 12 with a quadratic cross view.
  • the tubular channel 12 serves as housing for the equipment that collects the wave energy and converts it into electrical or another form of energy which may be feed into an energy network, for example hydraulic or heat energy in a fluid.
  • the electrical energy may be transmitted over land or in the water, in order to be feed into an existing power network or to be used in a local power network. Building of local power networks is particularly relevant at islands or in other areas, where public power networks do not exist. In such areas the power production may be based on a combination of wave power plants and one or more electrical power aggregates, tide water power plants and windmills. In some cases hydro electric power plants may also be a part of the power production facilities.
  • Each power plant unit 11 has a piston 13 placed in the tubular channel 12, the piston 13 is facing the open end of the channel 12, pointing towards the sea.
  • the piston 13, which is adapted to the opening of the tubular channel 12, is carried by a tubular piston rod 14 which is displaceable suspended in a transverse wall 15 in the channel 12.
  • the piston may be circular and suspended in a tubular channel.
  • the piston rod 14 forms the external part of a ball screw 16, so that axial movement of the piston is converted to a rotary torque at the outlet axle end 17 of the ball screw 16.
  • the axle end 17 carries a flywheel 18 with a free wheel mechanism 28, and, over a flange coupling 19 or similar, connected to an electrical generator 20.
  • the electrical generator is placed at the inner end of the channel 12, which is closed with an end wall 21. Close to the ball screw 16, the end of the axle 17 is supported by a transverse wall 22 with a bearing.
  • the tubular channel 12 with its piston 13 and associated conversion equipment is in the example placed at a sea shore 23, which is sloping towards the water level 24.
  • the sea shore 23 is provided with a sloping base 26, which may comprise rails, to form a track for a couple of wheels 25 at the same axle.
  • the screw spring serves as a combined damper and as a return force.
  • it may be made openings in the piston which let an amount of water through, which at the end of the in stroke serves as a damper and which thereafter carries the piston down to the starting position before the next sea wave hits.
  • the power plant unit 11 is connected to means for moving the power plant unit 11 in its longitudinal direction at the foundation 26 and further whip it around the axis formed by the wheels 25.
  • means for moving the power plant unit 11 in its longitudinal direction at the foundation 26 and further whip it around the axis formed by the wheels 25 For example electro mechanical mechanisms based on prior art technology may be used.
  • the starting position of the piston 13 corresponds to what is shown in Fig. 1, slightly retracted into the channel 12, so that a piston chamber 27 is formed which may gather the impact energy from the sea wave and conduct it towards the piston 13.
  • Power plant units as described may be produced in a factory and be transported to the plant area ready for mounting, as it will be given examples of in the following.
  • the dimension of the tubular channel may for example be 0,5 - 2,0 meters in square or rectangular, for example 1,25 X 1,25 metres.
  • the length of the front part of the piston chamber 27 may be 1 meter, the stroke of the piston 2 -3 metres and the length of the generator housing may be 2 metres.
  • Such a power plant unit may be provided with mechanical and electrical dimensions, so that it may be used to supply power to small networks, an individual user and as power supply for equipment arranged isolated in or by the sea.
  • a power plant is shown, with power plant units according to the invention.
  • several power plant units 11 that are built together in a row, for placement along a sea shore, with two power plant units in the height.
  • a section of four such pairs of power plant units placed side by side, but this number may be adapted to a sea shore, with an arbitrary length.
  • Such an assembly may be called a power plant battery, and several such power plant batteries may be placed in a row, being controlled from a common centre, for feeding of a common network.
  • the individual outgoing axles 17 from several power plant units are mechanically coupled together, for common driving of an electrical generator.
  • four axle ends 17 may, via a free wheel mechanism, be engaged with a common flywheel, which again drives a common electrical generator.
  • an actual embodiment is 3 X 3 power plant units put together in a power plant battery, with a common generator and a common flywheel.
  • Figure 3 shows a battery 29 comprising four piston units 30, 31, 32, 33, which are arranged in two layers corresponding to the embodiment of Figure 2.
  • the number of units stacked may be larger, but it is assumed that this is a favourable number.
  • the number of units assembled sideways may be adapted to the available space and optimal drive shaft length.
  • Each piston unit 30 - 33 has a piston 34, a piston rod 35, a transverse wall 36 and a ball screw 37 engaging the piston rod.
  • a gear wheel 38 is arranged to engage a centrally arranged gear wheel 39.
  • This gear wheel is suitably joumalled at the joint of the four piston units 30 - 33 at the end thereof.
  • the gear wheel 39 is integrated with a pulley 40 driving a generator 42 over a belt 41.
  • the gear wheel 39 may also function as a flywheel.
  • the battery 29 of piston units may be carried correspondingly to the embodiment of Figure 1.
  • FIG. 4 shows a battery 43 of three piston units 44, 45, 46, each with a piston 47 which may be moved in a channel.
  • Each piston has a bracket 48 extending through a longitudinal slot 49 at the bottom of each channel.
  • a runner wheel 50, 51 with a horizontal axis is arranged at each end, to carry a belt 52 the upper side 53 of which is arranged under the slot 49.
  • the bracket 48 is connected to the upper side 53 to power the belt 52.
  • the pulleys 50 at the sea facing end is journalled by brackets 54 connected to a not shown base.
  • the pulleys 51 at the back end of the piston unit battery is connected to corresponding brackets 55 and carried by a common drive shaft 56 extending to a generator 57 at one end.
  • the generator 57 and the drive shaft 56 is connected over a free wheel 58 allowing the pistons 47 to return from an inner end position to a front end position.
  • the drive shaft 56 carries a flywheel 61.
  • FIG 4 a box shaped piston 47 is shown, with side walls 59 to guide in the channel and with bracing elements 60.
  • the power plant according to the invention is primarily provided for instalment in a natural waterside or shore. But it is also possible to place it at moles, by quays, by platforms at sea and on specially built carrying structures which may be anchored at pillars at the sea bottom.
  • the invention is associated with generation of electrical energy. It may however be areas of use, where the rotary energy is transferred to a pump or a compressor which feeds pressure media into a network where this may be used for driving motors. This may for example be of interest when using the invention close to platforms at sea.
  • Such a power plant or an individual power plant unit may be controlled with one controlling circuit which receives signals from wave measuring equipment, power meter, and impact measuring equipment.
  • the main purpose of such a controlling circuit for example a PLS system, will be to provide an optimal position, including height and oblique position, to maximize the power outlet.
  • it will comprise controlling functions for parking such a plant in inactive and secured position under storm and/or other strains which are causing a risk for damage, for example high water.

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

L'invention concerne un procédé pour convertir l'énergie des vagues en une forme d'énergie qui peut alimenter un réseau d'énergie, en particulier un réseau électrique. Les vagues sont guidées dans un canal tubulaire (27) présentant un piston (13) mobile axialement qui est relié à un convertisseur rotatif (14, 16). Ce dernier est relié à un convertisseur (20) pour la génération d'énergie qui peut être transférée vers un réseau d'énergie, en particulier électrique. Une centrale électrique pour la mise en oeuvre dudit procédé comprend un piston (13) qui est suspendu de manière à pouvoir se déplacer axialement dans un canal tubulaire (12) et dont la tige de piston (14) est reliée à un convertisseur rotatif, par ex., par intégration avec ou liaison à un élément tubulaire présentant des filetages intérieurs, qui est relié à une vis sphérique (16) qui est relié à un axe de sortie (17).
PCT/NO2009/000035 2008-02-01 2009-01-30 Procédé pour convertir l'énergie des vagues, centrale électrique pour la mise en oeuvre du procédé et centrale houlomotrice Ceased WO2009102210A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09710127.3A EP2240686A4 (fr) 2008-02-01 2009-01-30 Procédé pour convertir l'énergie des vagues, centrale électrique pour la mise en oeuvre du procédé et centrale houlomotrice

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20080605 2008-02-01
NO20080605A NO328044B1 (no) 2008-02-01 2008-02-01 Framgangsmåte for omforming av bølgeenergi, kraftverksenhet for å gjennomføre denne framgangsmåten, samt bølgekraftverk

Publications (1)

Publication Number Publication Date
WO2009102210A1 true WO2009102210A1 (fr) 2009-08-20

Family

ID=40957142

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2009/000035 Ceased WO2009102210A1 (fr) 2008-02-01 2009-01-30 Procédé pour convertir l'énergie des vagues, centrale électrique pour la mise en oeuvre du procédé et centrale houlomotrice

Country Status (4)

Country Link
EP (1) EP2240686A4 (fr)
CL (1) CL2009001617A1 (fr)
NO (1) NO328044B1 (fr)
WO (1) WO2009102210A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8590298B2 (en) 2010-10-08 2013-11-26 Industrial Technology Research Institute Changeable damping wave power capturing device driven by bidirectional screw rod
WO2014107105A1 (fr) * 2013-01-04 2014-07-10 Es Saady Mohamed Appareil qui produit l'energie electrique a partir des mouvements des vagues
US20150107238A1 (en) * 2012-04-10 2015-04-23 Lawrence G. Brown Apparatuses, Systems, and Methods for Extraction and/or Storage of Energy From Moving Fluids
CN103850863B (zh) * 2014-03-05 2015-12-30 天津大学 用于波浪能液压发电的浮子组件
EP3538790A4 (fr) * 2016-11-09 2020-04-29 Ocean Power Technologies, Inc. Système de prise de force pour bouée de dispositif houlomoteur

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1008682A (en) * 1911-04-10 1911-11-14 Enos A Wall Wave-motor.
JPS58148279A (ja) * 1982-02-25 1983-09-03 Sanwa Tekki Corp 波力発電装置
US6109029A (en) * 1997-01-29 2000-08-29 Vowles; Alan Keith Wave energy converter
US6184590B1 (en) * 1999-01-21 2001-02-06 Raymond Lopez Wave-actuated electricity generating device

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GB191119115A (en) * 1911-08-25 1912-01-11 Enos Andrew Wall Improvements in connected with Wave Motors.
US1385738A (en) * 1920-11-12 1921-07-26 Whittle Alexander Wave-motor
US1617571A (en) * 1923-08-27 1927-02-15 Samuel B Caldwell Wave motor
US2013861A (en) * 1932-04-25 1935-09-10 Puigjaner Alberto Wave motor
FR841168A (fr) * 1938-07-25 1939-05-12 Procédé et dispositif pour l'utilisation de l'énergie mécanique contenue dans lemouvement de vagues des eaux stagnantes
FR872125A (fr) * 1941-05-15 1942-05-30 Hydromoteur
GB628422A (en) * 1947-08-27 1949-08-29 Herbert Heaton Patrick Improvements in wave or tide motors
GB940823A (en) * 1962-03-02 1963-11-06 Inst Schiffbau Apparatus for converting wave energy into electrical energy
DE19815211A1 (de) * 1998-04-04 1999-10-14 Karl Merk Wellenkraftwerk-Vorrichtung
WO2006113855A2 (fr) * 2005-04-19 2006-10-26 State Of Oregon Acting By & Through The State Board Of Higher Edu. On Behalf Of Oregon State Univ. Procedes et appareil de generation d'energie
WO2007137426A1 (fr) * 2006-05-30 2007-12-06 Syncwave Energy Inc. Convertisseur d'énergie marémotrice
BE1017646A3 (nl) * 2006-12-05 2009-03-03 Witteveen En Bos Raadgevende I Vijzel pomp en generator.

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1008682A (en) * 1911-04-10 1911-11-14 Enos A Wall Wave-motor.
JPS58148279A (ja) * 1982-02-25 1983-09-03 Sanwa Tekki Corp 波力発電装置
US6109029A (en) * 1997-01-29 2000-08-29 Vowles; Alan Keith Wave energy converter
US6184590B1 (en) * 1999-01-21 2001-02-06 Raymond Lopez Wave-actuated electricity generating device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2240686A4 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8590298B2 (en) 2010-10-08 2013-11-26 Industrial Technology Research Institute Changeable damping wave power capturing device driven by bidirectional screw rod
US20150107238A1 (en) * 2012-04-10 2015-04-23 Lawrence G. Brown Apparatuses, Systems, and Methods for Extraction and/or Storage of Energy From Moving Fluids
US10947961B2 (en) * 2012-04-10 2021-03-16 Amy C. Brown Apparatuses, systems, and methods for extraction and/or storage of energy from moving fluids
AU2019246939B2 (en) * 2012-04-10 2021-10-07 Gregory A.M. Brown Apparatuses, systems, and methods for extraction and/or storage of energy from moving fluids
US11661925B2 (en) * 2012-04-10 2023-05-30 Brown Gregory A M Apparatuses, systems, and methods for extraction and/or storage of energy from moving fluids
WO2014107105A1 (fr) * 2013-01-04 2014-07-10 Es Saady Mohamed Appareil qui produit l'energie electrique a partir des mouvements des vagues
CN103850863B (zh) * 2014-03-05 2015-12-30 天津大学 用于波浪能液压发电的浮子组件
EP3538790A4 (fr) * 2016-11-09 2020-04-29 Ocean Power Technologies, Inc. Système de prise de force pour bouée de dispositif houlomoteur

Also Published As

Publication number Publication date
CL2009001617A1 (es) 2010-01-15
EP2240686A1 (fr) 2010-10-20
NO20080605L (no) 2009-08-03
NO328044B1 (no) 2009-11-16
EP2240686A4 (fr) 2014-08-13

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