WO2003014560A3 - Apparatus and method for optimizing the power transfer produced by a wave energy converter (wec) - Google Patents

Apparatus and method for optimizing the power transfer produced by a wave energy converter (wec) Download PDF

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Publication number
WO2003014560A3
WO2003014560A3 PCT/US2002/025072 US0225072W WO03014560A3 WO 2003014560 A3 WO2003014560 A3 WO 2003014560A3 US 0225072 W US0225072 W US 0225072W WO 03014560 A3 WO03014560 A3 WO 03014560A3
Authority
WO
WIPO (PCT)
Prior art keywords
wec
load
power transfer
inductance
converter
Prior art date
Application number
PCT/US2002/025072
Other languages
French (fr)
Other versions
WO2003014560A2 (en
Inventor
Joseph R Burns
Paul Smalser
George W Taylor
Thomas R Welsh
Original Assignee
Ocean Power Technologies 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 Ocean Power Technologies Inc filed Critical Ocean Power Technologies Inc
Priority to EP02768448A priority Critical patent/EP1425510B1/en
Priority to AU2002331009A priority patent/AU2002331009B2/en
Priority to CA2458513A priority patent/CA2458513C/en
Priority to NZ531333A priority patent/NZ531333A/en
Publication of WO2003014560A2 publication Critical patent/WO2003014560A2/en
Publication of WO2003014560A3 publication Critical patent/WO2003014560A3/en
Priority to NO20040974A priority patent/NO328163B1/en

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
    • F03B13/148—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 static pressure increase due to the wave
    • 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 (WEC) including an electric generator (42) for capturing energy contained in ocean waves and converting it to electrical energy at the output of the electric generator (42) may be characterized as an effective capacitive or inductive element; systems embodying the invention include an inductive or capacitive element inserted in the circuit between the output of the electric generator (42) and a load (60) in order to achieve resonance with the effective capacitance 'inductance' of the WEC and so as to increase the efficiency of the power transfer to the load (60); in certain embodiments the load (60) coupled to the system has a optimum value which is made a function of the frequency of the ocean waves and the effective capacitance or inductance; the effective capacitance 'inductance' of the converter (40a) varies as a function of the frequency of the ocean waves; accordingly, systems embodying the invention may include a controller (54) for varying the load (60) and/or the inductive 'capacitive' element coupled in the system resonate with the converter (54) for increasing the efficiency of the system.
PCT/US2002/025072 2001-08-06 2002-08-05 Apparatus and method for optimizing the power transfer produced by a wave energy converter (wec) WO2003014560A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP02768448A EP1425510B1 (en) 2001-08-06 2002-08-05 Apparatus and method for optimizing the power transfer produced by a wave energy converter (wec)
AU2002331009A AU2002331009B2 (en) 2001-08-06 2002-08-05 Apparatus and method for optimizing the power transfer produced by a wave energy converter (WEC)
CA2458513A CA2458513C (en) 2001-08-06 2002-08-05 Apparatus and method for optimizing the power transfer produced by a wave energy converter (wec)
NZ531333A NZ531333A (en) 2001-08-06 2002-08-05 Apparatus and method for optimizing the power transfer produced by a wave energy converter (WEC)
NO20040974A NO328163B1 (en) 2001-08-06 2004-03-05 Bulk energy inverters and associated method.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/922,877 US6731019B2 (en) 2000-08-07 2001-08-06 Apparatus and method for optimizing the power transfer produced by a wave energy converter (WEC)
US09/922,877 2001-08-06

Publications (2)

Publication Number Publication Date
WO2003014560A2 WO2003014560A2 (en) 2003-02-20
WO2003014560A3 true WO2003014560A3 (en) 2003-05-01

Family

ID=25447697

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/025072 WO2003014560A2 (en) 2001-08-06 2002-08-05 Apparatus and method for optimizing the power transfer produced by a wave energy converter (wec)

Country Status (9)

Country Link
US (1) US6731019B2 (en)
EP (1) EP1425510B1 (en)
AU (1) AU2002331009B2 (en)
CA (1) CA2458513C (en)
ES (1) ES2306784T3 (en)
NO (1) NO328163B1 (en)
NZ (1) NZ531333A (en)
PT (1) PT1425510E (en)
WO (1) WO2003014560A2 (en)

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Also Published As

Publication number Publication date
NO20040974L (en) 2004-05-06
EP1425510B1 (en) 2008-04-09
US6731019B2 (en) 2004-05-04
EP1425510A2 (en) 2004-06-09
AU2002331009B2 (en) 2008-02-28
CA2458513A1 (en) 2003-02-20
NZ531333A (en) 2006-03-31
PT1425510E (en) 2008-08-22
CA2458513C (en) 2011-02-15
US20020047273A1 (en) 2002-04-25
WO2003014560A2 (en) 2003-02-20
EP1425510A4 (en) 2004-09-29
NO328163B1 (en) 2009-12-21
ES2306784T3 (en) 2008-11-16

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