WO2005089283A3 - Coil switching circuit for linear electric generator - Google Patents

Coil switching circuit for linear electric generator Download PDF

Info

Publication number
WO2005089283A3
WO2005089283A3 PCT/US2005/008468 US2005008468W WO2005089283A3 WO 2005089283 A3 WO2005089283 A3 WO 2005089283A3 US 2005008468 W US2005008468 W US 2005008468W WO 2005089283 A3 WO2005089283 A3 WO 2005089283A3
Authority
WO
WIPO (PCT)
Prior art keywords
coils
ica
sections
electric generator
linear electric
Prior art date
Application number
PCT/US2005/008468
Other languages
French (fr)
Other versions
WO2005089283A2 (en
Inventor
David B Stewart
Paul Smalser
Henry I Schanzer
Original Assignee
Ocean Power Technologies Inc
David B Stewart
Paul Smalser
Henry I Schanzer
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, David B Stewart, Paul Smalser, Henry I Schanzer filed Critical Ocean Power Technologies Inc
Priority to JP2007504005A priority Critical patent/JP4607174B2/en
Priority to EP20050729874 priority patent/EP1743414B1/en
Priority to AU2005222961A priority patent/AU2005222961B2/en
Priority to CA2537109A priority patent/CA2537109C/en
Priority to ES05729874.7T priority patent/ES2544746T3/en
Publication of WO2005089283A2 publication Critical patent/WO2005089283A2/en
Priority to NO20061967A priority patent/NO20061967L/en
Publication of WO2005089283A3 publication Critical patent/WO2005089283A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors
    • H02K41/031—Synchronous motors; Motors moving step by step; Reluctance motors of the permanent magnet type
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
    • H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
    • H02P25/06—Linear motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • 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
    • F05B2220/7068—Application in combination with an electrical generator equipped with permanent magnets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K3/00—Details of windings
    • H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
    • H02K3/28—Layout of windings or of connections between windings
    • 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

In a linear electric generator (LEG) which includes apparatus for passing a permanent magnetic assembly (PMA) (30) along linearly disposed sections of coils of an induction coil assembly (ICA) (24) for generating voltages and power, a switching arrangement for coupling only selected sections of coils of the ICA (24) across the power output lines of the LEG. The selected coils sections include the sections of coils of the ICA (24) in close proximity to the passing PMA (30). In accordance with different embodiments, the non selected coils of the ICA (24) may be either short circuited or disconnected (open circuited) from the power output lines.
PCT/US2005/008468 2004-03-16 2005-03-15 Coil switching circuit for linear electric generator WO2005089283A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2007504005A JP4607174B2 (en) 2004-03-16 2005-03-15 Coil switch circuit for linear generator
EP20050729874 EP1743414B1 (en) 2004-03-16 2005-03-15 Coil switching circuit for linear electric generator
AU2005222961A AU2005222961B2 (en) 2004-03-16 2005-03-15 Coil switching circuit for linear electric generator
CA2537109A CA2537109C (en) 2004-03-16 2005-03-15 Coil switching circuit for linear electric generator
ES05729874.7T ES2544746T3 (en) 2004-03-16 2005-03-15 Coil switching circuit for linear electric generator
NO20061967A NO20061967L (en) 2004-03-16 2006-05-03 Coil selector circuit for linear electric generator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US55366604P 2004-03-16 2004-03-16
US60/553,666 2004-03-16
US11/030,932 US7362003B2 (en) 2004-03-16 2005-01-07 Coil switching circuit for linear electric generator
US11/030,932 2005-01-07

Publications (2)

Publication Number Publication Date
WO2005089283A2 WO2005089283A2 (en) 2005-09-29
WO2005089283A3 true WO2005089283A3 (en) 2007-03-29

Family

ID=34994239

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/008468 WO2005089283A2 (en) 2004-03-16 2005-03-15 Coil switching circuit for linear electric generator

Country Status (9)

Country Link
US (1) US7362003B2 (en)
EP (1) EP1743414B1 (en)
JP (1) JP4607174B2 (en)
AU (1) AU2005222961B2 (en)
CA (1) CA2537109C (en)
ES (1) ES2544746T3 (en)
NO (1) NO20061967L (en)
PT (1) PT1743414E (en)
WO (1) WO2005089283A2 (en)

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US7323790B2 (en) * 2005-03-15 2008-01-29 Ocean Power Technologies, Inc. Wave energy converters (WECs) with linear electric generators (LEGs)
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US7554215B1 (en) * 2007-07-03 2009-06-30 Paul Caragine Generator and method for generating electricity from subsurface currents
US20090079199A1 (en) * 2007-09-25 2009-03-26 Tubel Paulo S Electric generator operated by reciprocating wellbore pump and monitoring system used therewith
GB2459269B (en) 2008-04-15 2010-09-29 Perpetuum Ltd An electromechanical generator for, and method of, converting mechanical vibrational energy into electrical energy
US8482181B2 (en) 2008-06-04 2013-07-09 Convergent Power, Inc. Three phase synchronous reluctance motor with constant air gap and recovery of inductive field energy
US7816797B2 (en) * 2009-01-07 2010-10-19 Oscilla Power Inc. Method and device for harvesting energy from ocean waves
US20100194117A1 (en) * 2009-02-05 2010-08-05 Schlumberger Technology Corporation Electromagnetic device having compact flux paths for harvesting energy from vibrations
US8803346B2 (en) * 2009-03-09 2014-08-12 Natural Power Concepts, Inc. System and method for generating electricity using grid of wind and water energy capture devices
US20110057448A1 (en) * 2009-09-08 2011-03-10 Joseph Page Wave energy converters
US9048717B2 (en) 2009-09-16 2015-06-02 Ecoharvester, Inc. Multipolar electromagnetic generator
US8324998B2 (en) * 2009-09-16 2012-12-04 Ecoharvester, Inc. Wireless switch with multipolar electromagnetic generator
US9041230B2 (en) * 2009-12-15 2015-05-26 University Of Florida Research Foundation, Inc. Method and apparatus for motional/vibrational energy harvesting via electromagnetic induction using a magnet array
DE102010000690A1 (en) * 2010-01-05 2011-07-07 Hamilton Bonaduz Ag Dosing device and dosing process
US20120086205A1 (en) * 2010-10-08 2012-04-12 Balakrishnan Nair Method and device for harvesting energy from ocean waves
EP2584683B1 (en) * 2011-10-21 2020-03-18 Université de Liège Energy harvesting system using several energy sources.
US8692397B1 (en) * 2012-06-13 2014-04-08 The United States Of America As Represented By The Secretary Of The Navy Mechanism for the conversion of vertical motion to translational or rotational motion
US8680698B1 (en) * 2012-06-13 2014-03-25 The United States Of America As Represented By The Secretary Of The Navy Self-contained mechanism for the conversion of vertical motion to rotational/translational motion
US8692396B1 (en) * 2012-06-13 2014-04-08 The United States Of America As Represented By The Secretary Of The Navy Apparatus and method for a hybrid system for harvesting magnetic and electrical energy
US9624900B2 (en) 2012-10-29 2017-04-18 Energystics, Ltd. Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
US10011910B2 (en) 2012-10-29 2018-07-03 Energystics, Ltd. Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
US8629572B1 (en) 2012-10-29 2014-01-14 Reed E. Phillips Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
WO2014070213A2 (en) * 2012-11-05 2014-05-08 Convergent Power, Inc. Toroidal motor design having back emf reduction
US8723353B1 (en) * 2012-11-21 2014-05-13 Barrie Franklin Wave energy converter design incorporating an induction generator
US9206672B2 (en) 2013-03-15 2015-12-08 Fastcap Systems Corporation Inertial energy generator for supplying power to a downhole tool
ITMI20130425U1 (en) * 2013-12-13 2015-06-14 Fast Man Service Srl LINEAR MAGNETIC POWER GENERATOR
US9448264B2 (en) * 2014-02-28 2016-09-20 Elster Solutions, Llc Using load-side voltage and an auxiliary switch to confirm the close or open status of a meter disconnect switch
US10352290B2 (en) * 2017-02-14 2019-07-16 The Texas A&M University System Method and apparatus for wave energy conversion
WO2019088924A1 (en) * 2017-11-06 2019-05-09 Pba Systems Pte Ltd Linear motor with heat dissipating capabilities and heat reducing considerations
US10865763B2 (en) * 2018-01-24 2020-12-15 Dehlsen Associates, Llc Power take-off for a wave energy converter
US10047717B1 (en) 2018-02-05 2018-08-14 Energystics, Ltd. Linear faraday induction generator for the generation of electrical power from ocean wave kinetic energy and arrangements thereof
US10720956B2 (en) * 2018-09-06 2020-07-21 Intel Corporation Low loss transmitter receiver switch with transformer matching network
KR102170734B1 (en) * 2019-01-28 2020-10-27 주식회사 져스텍 Method for manufacturing coil module for linear motor
US11043889B2 (en) * 2019-11-06 2021-06-22 Positive Energy, a Gravity and Motion Company, Inc. Methods and apparatus for kinetic energy harvesting
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JP7054714B2 (en) * 2020-02-17 2022-04-14 本田技研工業株式会社 Electric suspension device

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Also Published As

Publication number Publication date
US20050218728A1 (en) 2005-10-06
EP1743414B1 (en) 2015-05-13
PT1743414E (en) 2015-09-17
EP1743414A2 (en) 2007-01-17
AU2005222961B2 (en) 2009-07-23
AU2005222961A1 (en) 2005-09-29
JP4607174B2 (en) 2011-01-05
EP1743414A4 (en) 2014-01-22
CA2537109C (en) 2013-10-29
NO20061967L (en) 2006-12-11
WO2005089283A2 (en) 2005-09-29
JP2007529986A (en) 2007-10-25
ES2544746T3 (en) 2015-09-03
CA2537109A1 (en) 2005-09-29
US7362003B2 (en) 2008-04-22

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