GB2584965A8 - Improved wave energy converter - Google Patents

Improved wave energy converter Download PDF

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Publication number
GB2584965A8
GB2584965A8 GB2009919.8A GB202009919A GB2584965A8 GB 2584965 A8 GB2584965 A8 GB 2584965A8 GB 202009919 A GB202009919 A GB 202009919A GB 2584965 A8 GB2584965 A8 GB 2584965A8
Authority
GB
United Kingdom
Prior art keywords
float
wave energy
inertia
pitch
moment
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.)
Granted
Application number
GB2009919.8A
Other versions
GB2584965A (en
GB2584965B (en
GB202009919D0 (en
Inventor
R Mundon Timothy
Nair Balakrishnan
Vining Jennifer
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.)
Oscilla Power Inc
Original Assignee
Oscilla Power Inc
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 Oscilla Power Inc filed Critical Oscilla Power Inc
Priority to GB2105936.5A priority Critical patent/GB2591421B/en
Priority claimed from US15/217,772 external-priority patent/US10393089B2/en
Publication of GB202009919D0 publication Critical patent/GB202009919D0/en
Publication of GB2584965A publication Critical patent/GB2584965A/en
Publication of GB2584965A8 publication Critical patent/GB2584965A8/en
Application granted granted Critical
Publication of GB2584965B publication Critical patent/GB2584965B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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"
    • 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
    • F03B13/1865—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 where the connection between wom and conversion system takes tension only
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • 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
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
    • H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
    • H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2220/00—Application
    • F05B2220/70—Application in combination with
    • F05B2220/706—Application in combination with an electrical generator
    • F05B2220/707—Application in combination with an electrical generator of the linear type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/70—Shape
    • F05B2250/73—Shape asymmetric
    • 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
    • F05B2260/00—Function
    • F05B2260/02—Transport, e.g. specific adaptations or devices for conveyance
    • 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
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/406—Transmission of power through hydraulic systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Abstract

A wave energy converter includes a surface float 102, a drivetrain 108 disposed within the float, and a submerged reaction structure 104 which has a moment of inertia in pitch and roll greater than a moment of inertia in pitch and roll of the surface float 102. The float 102 and reaction structure 104 are mechanically coupled by at least one flexible tether 106. The float 102 may have a non-axisymmetric profile. The moment of inertia of the float 102 may be different in heave, pitch and/or roll, such that the natural period of the float in different modes is distributed across the significant period range of wave energy at a deployment location. The drivetrain 108 may comprise a hydraulic system and a linear generator.
GB2009919.8A 2015-07-22 2016-07-22 Improved wave energy converter Active GB2584965B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2105936.5A GB2591421B (en) 2015-07-22 2016-07-22 Improved wave energy converter

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201562195693P 2015-07-22 2015-07-22
US15/217,772 US10393089B2 (en) 2013-04-05 2016-07-22 Wave energy converter
GB1802807.6A GB2557501B (en) 2015-07-22 2016-07-22 Improved wave energy converter

Publications (4)

Publication Number Publication Date
GB202009919D0 GB202009919D0 (en) 2020-08-12
GB2584965A GB2584965A (en) 2020-12-23
GB2584965A8 true GB2584965A8 (en) 2021-03-03
GB2584965B GB2584965B (en) 2021-06-16

Family

ID=57835078

Family Applications (4)

Application Number Title Priority Date Filing Date
GB2105936.5A Active GB2591421B (en) 2015-07-22 2016-07-22 Improved wave energy converter
GB1802807.6A Active GB2557501B (en) 2015-07-22 2016-07-22 Improved wave energy converter
GB2110860.0A Active GB2594665B (en) 2015-07-22 2016-07-22 Improved wave energy converter
GB2009919.8A Active GB2584965B (en) 2015-07-22 2016-07-22 Improved wave energy converter

Family Applications Before (3)

Application Number Title Priority Date Filing Date
GB2105936.5A Active GB2591421B (en) 2015-07-22 2016-07-22 Improved wave energy converter
GB1802807.6A Active GB2557501B (en) 2015-07-22 2016-07-22 Improved wave energy converter
GB2110860.0A Active GB2594665B (en) 2015-07-22 2016-07-22 Improved wave energy converter

Country Status (2)

Country Link
GB (4) GB2591421B (en)
WO (1) WO2017015626A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2575705B (en) * 2018-04-30 2022-03-02 Rosenberg Brian Improved survivability of wave energy convertors

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2372964A (en) * 2001-03-08 2002-09-11 Granherne Internat Ltd Buoy with stabilising plates
AU2003302967A1 (en) * 2002-12-17 2004-07-09 Andrew Mentis Wave powered pump assembly
JP5284949B2 (en) * 2006-05-01 2013-09-11 オーシャン パワー テクノロジーズ，インク． Heave plate with vertical structure
GB0802291D0 (en) * 2008-02-07 2008-03-12 Pure Marine Gen Ltd Wave energy conversion apparatus
NZ587401A (en) * 2008-02-20 2012-12-21 Ocean Harvesting Technologies Ab Wave power plant with a two part generator and an energy storage device, where the storage device keeps the two part generator rotating in the same relative direction
EP2128430A1 (en) * 2008-05-30 2009-12-02 Jeroen Lambertus Maria Bömer High efficiency wave energy convertor
US10393089B2 (en) * 2013-04-05 2019-08-27 Oscilla Power Inc. Wave energy converter
GB2461792A (en) * 2008-07-14 2010-01-20 Marine Power Systems Ltd Wave generator with optional floating configuration
GB2479348A (en) * 2010-04-06 2011-10-12 Richard Ainsley Page Wave power converter with one way clutch
GB201010261D0 (en) * 2010-06-18 2010-08-04 Marine Power Systems Ltd Wave powered generator
DE102011008877A1 (en) * 2011-01-18 2012-07-19 Jan Peter Peckolt System and method for energy extraction from sea waves
US8904778B2 (en) * 2011-03-28 2014-12-09 Ocean Power Technologies, Inc Wave energy converter with asymmetrical float
US9790913B2 (en) * 2011-03-28 2017-10-17 Ocean Power Technologies, Inc. Pitch and heave driven wave energy converter system including cable supported reaction masses
GB201210133D0 (en) * 2012-06-08 2012-07-25 Univ Manchester Wave energy converter
AU2013280346B2 (en) * 2012-06-26 2017-03-23 Oscilla Power Inc. Wave energy harvester with heave plate
WO2014127299A1 (en) * 2013-02-14 2014-08-21 Oscilla Power Inc. Magnetostrictive devices and systems
GB201501356D0 (en) * 2015-01-27 2015-03-11 Aqua Power Technologies Ltd Wave energy converter
US10488828B2 (en) * 2016-12-09 2019-11-26 National Technology & Engineering Solutions Of Sandia, Llc Multi-resonant feedback control of multiple degree-of-freedom wave energy converters

Also Published As

Publication number Publication date
GB2584965A (en) 2020-12-23
GB201802807D0 (en) 2018-04-04
GB202110860D0 (en) 2021-09-08
GB2557501A (en) 2018-06-20
WO2017015626A1 (en) 2017-01-26
GB2594665B (en) 2022-03-02
GB2591421A (en) 2021-07-28
GB2594665A (en) 2021-11-03
GB2591421B (en) 2022-03-02
GB2557501B (en) 2020-08-12
GB2584965B (en) 2021-06-16
GB202105936D0 (en) 2021-06-09
GB202009919D0 (en) 2020-08-12

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Legal Events

Date Code Title Description
R108 Alteration of time limits (patents rules 1995)

Free format text: EXTENSION APPLICATION

Effective date: 20210412

Free format text: EXTENSION ALLOWED

Effective date: 20210414