CA2345234A1 - A synchronous machine with rotating brushes - Google Patents

A synchronous machine with rotating brushes Download PDF

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Publication number
CA2345234A1
CA2345234A1 CA002345234A CA2345234A CA2345234A1 CA 2345234 A1 CA2345234 A1 CA 2345234A1 CA 002345234 A CA002345234 A CA 002345234A CA 2345234 A CA2345234 A CA 2345234A CA 2345234 A1 CA2345234 A1 CA 2345234A1
Authority
CA
Canada
Prior art keywords
armature
stator
angular speed
relative
rotating
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
CA002345234A
Other languages
French (fr)
Other versions
CA2345234C (en
Inventor
Dah Yu Cheng
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
Publication of CA2345234A1 publication Critical patent/CA2345234A1/en
Application granted granted Critical
Publication of CA2345234C publication Critical patent/CA2345234C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/60—Motors or generators having rotating armatures and rotating excitation field
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K13/00—Structural associations of current collectors with motors or generators, e.g. brush mounting plates or connections to windings; Disposition of current collectors in motors or generators; Arrangements for improving commutation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K27/00—AC commutator motors or generators having mechanical commutator
    • H02K27/20—Structural association with a speed regulating device

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Dc Machiner (AREA)
  • Synchronous Machinery (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Massaging Devices (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A rotating field, synchronized electric generator or motor in which the magnetic field (20) that the armature (30) produces can rotate relative to the stator (21) at a speed significantly different from that of the arma-ture (30), under electronic or other control that obviates the need for a mechanical torque-carrying gearbox that can be used for a similar purpose in a synchronized generator or motor.

Claims (12)

1. A synchronous electrical machine operating at steady-state as a power generator or as a motor, comprising:
a non-rotating stator;
an armature rotating relative to the stator at a first angular speed and producing an armature magnetic field rotating relative to the stator at a second angular speed that differs by a selected amount from the first angular speed at steady state.
2. An electrical machine as in claim 1 in which the armature comprises a number of windings connected to respective commutator segments and a power source supplying power to the segments in a time sequence corresponding to the second angular speed while the armature rotates at the first angular speed.
3. An electrical machine as in claim 2 in which the power source comprises a switching arrangement powering the commutator segments in a selected sequence.
4. An electrical machine as in claim 3 in which the switching arrangement comprises a set of light emitters energized in a selected sequence and a set of light detectors responding to energization of the light emitters to enable switching elements powering respective commutator segments.
5. An electrical machine as in claim 3 in which the switching arrangement comprises brushes making electrical contact with the commutator segments, wherein the brushes rotate relative to the stator at an angular speed that is different from that of the armature and is related to said second angular speed.
6. An electrical machine as in claim 5 including a grating arrangement between to rotate the brushes relative to the armature.
7. A method of operating as electrical machine at steady-state, comprising:
rotating an armature relative to a non-rotating stator at an armature angular speed;
said armature having windings and producing an armature field rotating relative to a stator at a field angular speed;
supplying electrical power to the armature windings in a selected sequence causing said armature angular speed and said field angular speed to differ by a selected amount at steady state.
8. A method as in claim 7 in which said supplying comprises coupling the armature windings to a power source through an optical switching arrangement that powers the windings in said selected sequence.
9. A method as in claim 7 in which said supplying comprises coupling the armature winding to a power source through commutators that rotate at the 12~

armature speed and brushes that rotate at a different angular speed that matches the field speed.
10. A method of generating electric current is which an armature and an electro-magnetic field rotate at selected different angular velocities at steady-state, comprising:
rotating are armature carrying armature windings and commutator segments coupled thereto at a selected angular speed relative to a non-rotating stator carrying stator windings;
transmitting electrical power to selected commutator segments in a selected sequence through a switching arrangement that is in electrical communication with said commutator segments and an electric power source;
said transmitting of electrical power to said commutator segments and thus to said armature windings producing a magnetic field surrounding said armature and rotating at a selected angular speed relative to the stator and in turn producing electrical current in said stator windings; and controlling said selected sequence of transmitting electric power to the commutator segments to maintain a selected difference between the angular speed of the armature relative to the stator and the angular speed of the magnetic field produced by the armature windings relative to the stator at steady state.
11. A method as in claim 10 in which said controlling comprises controlling the operation of an optical coupling arrangement of light emitters and light-responsive switching elements coupled with said commutator, said emitters being activated in a selected sequence related to the angular speeds of the armature and the field relative to the stator.
12. A method as in claim 10 in which said controlling comprises rotating brushes through which a source of electric power is coupled to said commutator segments at an angular speed relative to the stator differs from the angular speed of the armature relative to the stator by an amount related to the difference between the angular speeds of the armature and the field relative to the stator.
CA002345234A 1998-09-22 1999-09-22 A synchronous machine with rotating brushes Expired - Fee Related CA2345234C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/158,464 US6047104A (en) 1998-09-22 1998-09-22 Electrical generators and motors in which at steady-state the rotor and its electromagnetic field rotate at selectively different angular speeds
US09/158,464 1998-09-22
PCT/US1999/021251 WO2000017989A1 (en) 1998-09-22 1999-09-22 A synchronous machine with rotating brushes

Publications (2)

Publication Number Publication Date
CA2345234A1 true CA2345234A1 (en) 2000-03-30
CA2345234C CA2345234C (en) 2009-12-15

Family

ID=22568253

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002345234A Expired - Fee Related CA2345234C (en) 1998-09-22 1999-09-22 A synchronous machine with rotating brushes

Country Status (10)

Country Link
US (1) US6047104A (en)
EP (1) EP1116320B1 (en)
JP (1) JP4469085B2 (en)
KR (1) KR100752802B1 (en)
CN (1) CN1173453C (en)
AT (1) ATE264561T1 (en)
AU (1) AU760947B2 (en)
CA (1) CA2345234C (en)
DE (1) DE69916476T2 (en)
WO (1) WO2000017989A1 (en)

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US6392371B1 (en) * 1998-09-22 2002-05-21 Cheng Power Systems, Inc. Universal frequency electrical generator
KR100303563B1 (en) * 1999-09-21 2001-11-02 윤종용 NDFG spark prevention apparatus for an AC/DC microwave oven
WO2001025626A1 (en) * 1999-10-05 2001-04-12 Amway Corporation Hydro-power generation for a water treatment system
WO2001052384A1 (en) * 2000-01-07 2001-07-19 Black & Decker Inc. Brushless dc motor
US6975050B2 (en) * 2000-01-07 2005-12-13 Black & Decker Inc. Brushless DC motor
DE20018564U1 (en) * 2000-10-30 2002-03-21 Cameron Gmbh actuator
WO2001091279A1 (en) * 2000-05-23 2001-11-29 Vestas Wind Systems A/S Variable speed wind turbine having a matrix converter
US6580237B2 (en) * 2000-12-25 2003-06-17 Asmo Co., Ltd Direct-current motor and manufacturing method of the same
AU2002310051A1 (en) * 2001-05-23 2002-12-03 Bryan P. Prucher Motor in wheel electric drive system
JP3800064B2 (en) * 2001-10-22 2006-07-19 株式会社デンソー Rotating electric machine for vehicles
US7015595B2 (en) * 2002-02-11 2006-03-21 Vestas Wind Systems A/S Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control
US6769874B2 (en) * 2002-03-15 2004-08-03 Hamilton Sundstrand Permanent magnet alternator for a gas turbine engine
US7045983B2 (en) * 2004-02-17 2006-05-16 Ford Motor Company System for controlling motor speed by altering magnetic field of the motor
US7081696B2 (en) 2004-08-12 2006-07-25 Exro Technologies Inc. Polyphasic multi-coil generator
US20060087293A1 (en) * 2004-10-26 2006-04-27 Honeywell International, Inc. AC generator with independently controlled field rotational speed
US7649274B2 (en) * 2006-02-09 2010-01-19 Windera Power Systems, Inc. Turbine with constant voltage and frequency output
CA2654462A1 (en) 2006-06-08 2007-12-13 Exro Technologies Inc. Poly-phasic multi-coil generator
WO2009075865A2 (en) * 2007-12-11 2009-06-18 Vinci-Tech Inc. Vertical axis wind turbine with blades for redirecting airflow
KR100960225B1 (en) 2009-07-09 2010-05-28 박재순 Generator for spinning brush
EP2587661A1 (en) * 2011-10-24 2013-05-01 ABB Technology AG System and method for controlling a synchronous motor
US9535481B2 (en) 2012-02-20 2017-01-03 Engineered Electric Company Power grid remote access
DE102013208067B4 (en) * 2013-05-02 2022-01-13 Ge Energy Power Conversion Gmbh Multi-phase electrical circuit
KR101878443B1 (en) * 2016-07-25 2018-07-18 나필찬 DC motor generator apparatus having variable multiple brushes
JP2020521418A (en) 2017-05-23 2020-07-16 ディーピーエム テクノロジーズ インク． Variable coil connection system
KR102070489B1 (en) * 2017-09-03 2020-01-28 선상규 AC generator utilizing of a multi-circuit brush and Distributor
KR101989233B1 (en) * 2017-09-11 2019-09-30 선상규 AC or DC generator using of a multi-circuit brush and distributor
CN109088516B (en) * 2018-09-20 2023-07-14 冉隆春 Energy-saving direct-current motor with dead-stop and unfired rotor
WO2020215154A1 (en) 2019-04-23 2020-10-29 Dpm Technologies Inc. Fault tolerant rotating electric machine
CA3217299A1 (en) 2021-05-04 2022-11-10 Tung Nguyen Battery control systems and methods
CN117337545A (en) 2021-05-13 2024-01-02 Exro技术公司 Method and device for driving coils of a multiphase motor

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US1818803A (en) * 1929-11-27 1931-08-11 Gen Electric Brush shifting device for alternating current dynamo electric machines
US1934469A (en) * 1932-05-25 1933-11-07 Gen Electric Alternating current self-excited commutator type generator
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Also Published As

Publication number Publication date
US6047104A (en) 2000-04-04
ATE264561T1 (en) 2004-04-15
EP1116320A4 (en) 2002-01-02
AU760947B2 (en) 2003-05-22
CA2345234C (en) 2009-12-15
JP4469085B2 (en) 2010-05-26
AU6146899A (en) 2000-04-10
CN1326605A (en) 2001-12-12
CN1173453C (en) 2004-10-27
KR100752802B1 (en) 2007-08-29
EP1116320A1 (en) 2001-07-18
JP2002526020A (en) 2002-08-13
KR20010075297A (en) 2001-08-09
WO2000017989A1 (en) 2000-03-30
DE69916476D1 (en) 2004-05-19
EP1116320B1 (en) 2004-04-14
DE69916476T2 (en) 2005-04-14

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EEER Examination request
MKLA Lapsed

Effective date: 20160922