WO2008156836A3 - Lift magnet mechanism for flywheel power storage systems - Google Patents

Lift magnet mechanism for flywheel power storage systems Download PDF

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Publication number
WO2008156836A3
WO2008156836A3 PCT/US2008/007709 US2008007709W WO2008156836A3 WO 2008156836 A3 WO2008156836 A3 WO 2008156836A3 US 2008007709 W US2008007709 W US 2008007709W WO 2008156836 A3 WO2008156836 A3 WO 2008156836A3
Authority
WO
WIPO (PCT)
Prior art keywords
rotor
flywheel assembly
flywheel
buss
power storage
Prior art date
Application number
PCT/US2008/007709
Other languages
French (fr)
Other versions
WO2008156836A2 (en
Inventor
Jimpo Wang
Original Assignee
Jimpo Wang
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 Jimpo Wang filed Critical Jimpo Wang
Priority to EP08768676.2A priority Critical patent/EP2158663A4/en
Priority to AU2008266814A priority patent/AU2008266814B2/en
Priority to CA002689226A priority patent/CA2689226A1/en
Priority to BRPI0812475-2A2A priority patent/BRPI0812475A2/en
Priority to JP2010513256A priority patent/JP5588863B2/en
Publication of WO2008156836A2 publication Critical patent/WO2008156836A2/en
Publication of WO2008156836A3 publication Critical patent/WO2008156836A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H02K7/09—Structural association with bearings with magnetic bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/044—Active magnetic bearings
    • F16C32/0459—Details of the magnetic circuit
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/02—Additional mass for increasing inertia, e.g. flywheels
    • H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2361/00—Apparatus or articles in engineering in general
    • F16C2361/55—Flywheel 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

Electric power is stored in a flywheel assembly, from a dc power buss, and supplied to the buss, through electronics associated with a motor/generator, its rotor integral with a flywheel supported by magnetic bearings. Upon operation, the flywheel assembly is released by mechanical backup bearings which then normally remain disengaged until shutdown as the flywheel assembly is levitated by the axial magnetic field. Enhancements developed herein smooth the flux density across discontinuities or segments present in permanent magnets due to presently limited capability for manufacture of large annular magnetic members. Herein, the introduction of a medium such as a steel cylindrical member to directly interface with the rotor as opposed to the segmented permanent magnet, greatly eradicates induced eddy current and heat on the rotor. In addition, exhibited is an annularly slotted rotor which allows for greater surface area for flux absorption.
PCT/US2008/007709 2007-06-20 2008-06-20 Lift magnet mechanism for flywheel power storage systems WO2008156836A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP08768676.2A EP2158663A4 (en) 2007-06-20 2008-06-20 Lift magnet mechanism for flywheel power storage systems
AU2008266814A AU2008266814B2 (en) 2007-06-20 2008-06-20 Lift magnet mechanism for flywheel power storage systems
CA002689226A CA2689226A1 (en) 2007-06-20 2008-06-20 Lift magnet mechanism for flywheel power storage systems
BRPI0812475-2A2A BRPI0812475A2 (en) 2007-06-20 2008-06-20 WHEEL LEADING DEVICE, ROTOR MECHANISM FOR A MAGNETIC FIELD GENERATION APPARATUS, AND METHOD FOR REDUCING FORCE SENSITIVITY AND REDUCING VARIATION OF MAGNETIC FLOW IN A MAGNETIC ELEMENTS SEGMENTED BY A GENERIC FIELD MECHANISM
JP2010513256A JP5588863B2 (en) 2007-06-20 2008-06-20 Lift magnet mechanism for flywheel power storage system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/820,255 US7679247B2 (en) 2007-06-20 2007-06-20 Lift magnet mechanism for flywheel power storage systems
US11/820,255 2007-06-20

Publications (2)

Publication Number Publication Date
WO2008156836A2 WO2008156836A2 (en) 2008-12-24
WO2008156836A3 true WO2008156836A3 (en) 2009-02-05

Family

ID=40135768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/007709 WO2008156836A2 (en) 2007-06-20 2008-06-20 Lift magnet mechanism for flywheel power storage systems

Country Status (7)

Country Link
US (1) US7679247B2 (en)
EP (1) EP2158663A4 (en)
JP (1) JP5588863B2 (en)
AU (1) AU2008266814B2 (en)
BR (1) BRPI0812475A2 (en)
CA (1) CA2689226A1 (en)
WO (1) WO2008156836A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8314527B2 (en) * 2007-06-20 2012-11-20 Beacon Power, Llc Advanced flywheel and method
KR101870339B1 (en) 2010-06-08 2018-06-22 템포럴 파워 리미티드 Flywheel energy system
US8917004B2 (en) 2011-12-07 2014-12-23 Rotonix Hong Kong Limited Homopolar motor-generator
US9148037B2 (en) 2011-11-13 2015-09-29 Rotonix Hong Kong Limited Electromechanical flywheel
US20150069843A1 (en) 2012-04-16 2015-03-12 Temporal Power Ltd. Method and System for Regulating Power of an Electricity Grid System
KR101789616B1 (en) * 2012-08-23 2017-10-25 앰버 카이네틱스, 인크. Apparatus and method for magnetically unloading a rotor bearing
CA2890377A1 (en) 2012-11-05 2014-05-08 Temporal Power Ltd. Cooled flywheel apparatus
US9899895B2 (en) 2013-07-08 2018-02-20 Saint Augustin Canada Electric Inc. Method for producing a kinetic energy storage system
US9083207B1 (en) 2014-01-10 2015-07-14 Temporal Power Ltd. High-voltage flywheel energy storage system
CN103731068B (en) * 2014-01-27 2015-09-30 合肥工业大学 The levitation energy-storing flywheel device of permanent-magnetism electromagnetic compound
CN103872839B (en) * 2014-03-18 2016-06-01 上海交通大学 A kind of collection of energy stocking system based on magnetic levitation flywheel and method
CN112913125A (en) 2018-07-06 2021-06-04 斯宾莱科特里克斯公司 Electromechanical battery
CN108880087A (en) * 2018-08-15 2018-11-23 中国电子科技集团公司第十六研究所 A kind of accumulated energy flywheel in high temperature superconducting magnetic suspension energy accumulation system
US10982730B2 (en) 2019-03-04 2021-04-20 Saint- Augustin Canada Electric Inc. Flywheel systems and related methods

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5614777A (en) * 1995-02-06 1997-03-25 U.S. Flywheel Systems Flywheel based energy storage system
US6794777B1 (en) * 2003-12-19 2004-09-21 Richard Benito Fradella Robust minimal-loss flywheel systems

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2747944A (en) * 1949-09-19 1956-05-29 Baermann Max Bearings for instruments and machines
DE1497253A1 (en) * 1966-03-19 1970-04-23 Siemens Ag Free-floating mount of a runner with a vertical shaft, especially the runner of an induction electricity counter
US3860300A (en) * 1971-07-07 1975-01-14 Cambridge Thermionic Corp Virtually zero powered magnetic suspension
US3791704A (en) * 1971-08-06 1974-02-12 Cambridge Thermionic Corp Trimming apparatus for magnetic suspension systems
JPS4853136A (en) * 1971-10-29 1973-07-26
JPS5226578B2 (en) * 1974-02-08 1977-07-14
US4285552A (en) * 1980-02-11 1981-08-25 Sperry Corporation Torquer apparatus for magnetically suspended members
JPS5765413A (en) * 1980-10-03 1982-04-21 Hitachi Ltd Magnetic bearing
JPS59164416A (en) * 1983-03-10 1984-09-17 Toshiba Corp Magnetic bearing device
JPH01204211A (en) * 1988-02-09 1989-08-16 Hitachi Ltd Revolving head device
GB2219357B (en) * 1988-06-02 1992-05-27 Glacier Metal Co Ltd Magnetic thrust bearings
US5153475A (en) * 1991-01-08 1992-10-06 Contraves Usa, Inc. Magnetic axial force actuator construction
US5898244A (en) * 1991-07-16 1999-04-27 Aura Systems, Inc. Dual-directional field coil actuator
EP0629789A4 (en) * 1992-02-14 1996-04-10 Seiko Epson Corp Superconducting bearing.
GB2269862B (en) * 1992-08-22 1996-05-08 Glacier Metal Co Ltd Electromagnetic bearing arrangement
JP3961032B2 (en) * 1993-12-13 2007-08-15 シーメンス アクチエンゲゼルシヤフト Magnetic bearing device for rotor shaft
US6025668A (en) * 1995-12-08 2000-02-15 Dana Corporation Variable reluctance motor having bifurcated stator poles
US5894181A (en) * 1997-07-18 1999-04-13 Imlach; Joseph Passive magnetic bearing system
JP2000145773A (en) * 1998-11-13 2000-05-26 Nsk Ltd Magnetic bearing device
US6566775B1 (en) * 2000-01-10 2003-05-20 Richard Benito Fradella Minimal-loss flywheel battery and related elements
JP4174948B2 (en) * 2000-03-16 2008-11-05 松下電器産業株式会社 Energy storage device
US6703735B1 (en) * 2001-11-02 2004-03-09 Indigo Energy, Inc. Active magnetic thrust bearing
JP4788351B2 (en) * 2006-01-19 2011-10-05 株式会社ジェイテクト Fuel cell supercharger

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5614777A (en) * 1995-02-06 1997-03-25 U.S. Flywheel Systems Flywheel based energy storage system
US6794777B1 (en) * 2003-12-19 2004-09-21 Richard Benito Fradella Robust minimal-loss flywheel systems

Also Published As

Publication number Publication date
JP5588863B2 (en) 2014-09-10
BRPI0812475A2 (en) 2014-12-02
EP2158663A2 (en) 2010-03-03
AU2008266814A1 (en) 2008-12-24
CA2689226A1 (en) 2008-12-24
AU2008266814B2 (en) 2012-02-23
WO2008156836A2 (en) 2008-12-24
JP2010530516A (en) 2010-09-09
US7679247B2 (en) 2010-03-16
US20080315696A1 (en) 2008-12-25
EP2158663A4 (en) 2016-03-09

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