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IN2014KN01023A - An electric motor or generator - Google Patents

An electric motor or generator

Info

Publication number
IN2014KN01023A
IN2014KN01023A IN1023/KOLNP/2014A IN1023KON2014A IN2014KN01023A IN 2014KN01023 A IN2014KN01023 A IN 2014KN01023A IN 1023KON2014 A IN1023KON2014 A IN 1023KON2014A IN 2014KN01023 A IN2014KN01023 A IN 2014KN01023A
Authority
IN
India
Prior art keywords
sensor
stator
rotor
flux angle
rotor flux
Prior art date
Application number
IN1023/KOLNP/2014A
Inventor
Richard Burke
Original Assignee
Protean Electric Ltd
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 Protean Electric Ltd filed Critical Protean Electric Ltd
Publication of IN2014KN01023A publication Critical patent/IN2014KN01023A/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
    • B60L15/025—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit using field orientation; Vector control; Direct Torque Control [DTC]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
    • B60L15/20—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
    • B60L15/2045—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed for optimising the use of energy
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
    • G01D5/142—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices
    • G01D5/145—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage using Hall-effect devices influenced by the relative movement between the Hall device and magnetic fields
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H02K11/33—Drive circuits, e.g. power electronics
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K29/00—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08—Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • 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
    • H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
    • H02P21/06—Rotor flux based control involving the use of rotor position or rotor speed sensors
    • 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
    • H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14—Electronic commutators
    • H02P6/16—Circuit arrangements for detecting position
    • 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
    • H02P9/009—Circuit arrangements for detecting rotor position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/10—Electrical machine types
    • B60L2220/14—Synchronous machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2220/00—Electrical machine types; Structures or applications thereof
    • B60L2220/40—Electrical machine applications
    • B60L2220/44—Wheel Hub motors, i.e. integrated in the wheel hub
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2240/00—Control parameters of input or output; Target parameters
    • B60L2240/40—Drive Train control parameters
    • B60L2240/42—Drive Train control parameters related to electric machines
    • B60L2240/421—Speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/142—Emission reduction of noise acoustic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2270/00—Problem solutions or means not otherwise provided for
    • B60L2270/10—Emission reduction
    • B60L2270/14—Emission reduction of noise
    • B60L2270/145—Structure borne vibrations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/12—Machines characterised by the modularity of some components
    • 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
    • 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
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/64—Electric machine technologies in electromobility
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Brushless Motors (AREA)

Abstract

An electric motor or generator system comprising a rotor having a first set of magnet poles; a stator having a first sensor mounted on the stator and a second sensor mounted in substantially a diametrically opposite position on the stator relative to the first sensor wherein the first sensor is arranged to output a first signal indicative of a first rotor flux angle associated with the first set of magnet poles as the rotor rotates relative to the stator and the second sensor is arranged to output a second signal indicative of a second rotor flux angle associated with the first set of magnet poles as the rotor rotates relative to the stator; and means arranged to determine a corrected rotor flux angle by averaging the first rotor flux angle indicated by the first sensor and the second rotor flux angle indicated by the second sensor.
IN1023/KOLNP/2014A 2011-10-19 2014-05-13 An electric motor or generator IN2014KN01023A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1118059.3A GB2483177B (en) 2011-10-19 2011-10-19 An electric motor or generator
PCT/IB2012/055309 WO2013057614A2 (en) 2011-10-19 2012-10-03 An electric motor or generator

Publications (1)

Publication Number Publication Date
IN2014KN01023A true IN2014KN01023A (en) 2015-10-09

Family

ID=45219953

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1023/KOLNP/2014A IN2014KN01023A (en) 2011-10-19 2014-05-13 An electric motor or generator

Country Status (8)

Country Link
US (1) US9431939B2 (en)
EP (1) EP2771204B1 (en)
JP (1) JP6030142B2 (en)
KR (1) KR101673900B1 (en)
CN (1) CN103066756B (en)
GB (1) GB2483177B (en)
IN (1) IN2014KN01023A (en)
WO (1) WO2013057614A2 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2679345T3 (en) * 2013-07-22 2018-08-24 Iveco France S.A.S. Passenger transport vehicle comprising at least one axle that has outer wheels that includes an energy recovery apparatus
FR3017961B1 (en) 2014-02-24 2017-11-03 Lohr Electromecanique METHOD FOR MEASURING THE VIBRATION OF PERMANENT MAGNETS OF A SYNCHRONOUS MACHINE EQUIPPED WITH AN ANGULAR POSITION SENSOR
FR3017959B1 (en) 2014-02-24 2017-08-25 Lohr Electromecanique METHOD FOR DETECTING A SHORT CIRCUIT IN A SYNCHRONOUS MACHINE EQUIPPED WITH AN ANGULAR POSITION SENSOR
FR3018014B1 (en) 2014-02-24 2016-03-25 Lohr Electromecanique SYNCHRONOUS MACHINE EQUIPPED WITH ANGULAR POSITION SENSOR
US9613539B1 (en) * 2014-08-19 2017-04-04 Amazon Technologies, Inc. Damage avoidance system for unmanned aerial vehicle
DE102015108617A1 (en) * 2015-06-01 2016-12-01 Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Würzburg Brushless DC motor
US9705436B2 (en) * 2015-12-04 2017-07-11 Texas Instruments Incorporated Linear hall device based field oriented control motor drive system
GB2552385B (en) * 2016-07-22 2021-09-15 Cmr Surgical Ltd Calibrating position sensor readings
GB2553112B (en) * 2016-08-23 2018-10-03 Protean Electric Ltd A rotor for an electric motor or generator
KR102497841B1 (en) 2016-09-13 2023-02-08 인디고 테크놀로지스, 인크. Multi-bar linkage electric drive system
CH712932A2 (en) 2016-09-16 2018-03-29 NM Numerical Modelling GmbH Method for determining the position of a position sensor of a position measuring system.
US10277084B1 (en) 2016-10-19 2019-04-30 Waymo Llc Planar rotary transformer
IT201600112719A1 (en) * 2016-11-09 2018-05-09 Metalrota S R L A magnetic sensor for rotating electrical machines.
TWI638512B (en) * 2017-09-22 2018-10-11 陳富民 Two-vector-based modeless predictive current control method for interior permanent magnet synchronous motor drive systems using prediction error correction technique
JP6967040B2 (en) * 2019-07-25 2021-11-17 株式会社ソニー・インタラクティブエンタテインメント Electric angle calculation device, electric angle calculation method and program
DE112021006313A5 (en) * 2020-12-04 2023-10-05 Schaeffler Technologies AG & Co. KG Method for determining a rotational position, method for determining an electrical angular position and method for controlling an electric motor
US11654780B2 (en) 2020-12-17 2023-05-23 Consolidated Metco, Inc. Vehicle electronic control unit and method
WO2024025848A1 (en) * 2022-07-24 2024-02-01 Navia Energy Inc. Controlled energy system
FR3148977A1 (en) * 2023-05-22 2024-11-29 Robert Bosch Automotive Steering Vendôme ELECTROMECHANICAL ACTUATOR FOR CONTROLLING A RETRACTABLE STEERING COLUMN ARM WITH INCREASED RELIABILITY

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3240580A1 (en) * 1982-11-03 1984-05-03 Ebm Elektrobau Mulfingen Gmbh & Co, 7119 Mulfingen DC external-rotor motor having no commutator
JPS6218956A (en) * 1985-02-07 1987-01-27 Sanyo Electric Co Ltd Detector for rotational angle for motor
FR2670286B1 (en) * 1990-12-05 1993-03-26 Moving Magnet Tech MAGNETIC POSITION AND SPEED SENSOR WITH HALL PROBE.
US5148070A (en) * 1991-08-30 1992-09-15 Platt Saco Lowell Corporation Apparatus for commutation of an electric motor
US5202610A (en) * 1991-08-30 1993-04-13 Platt Saco Lowell Method and apparatus for yarn end-down detection in a textile yarn winding machine
US5161361A (en) * 1991-08-30 1992-11-10 Platt Saco Lowell Corporation Motor-driven spindle assembly for ring spinning
JPH05276783A (en) * 1992-03-23 1993-10-22 Matsushita Electric Ind Co Ltd Motor speed signal detector
JP3568075B2 (en) * 1996-07-31 2004-09-22 日本ビクター株式会社 Drive control circuit for brushless motor
JP2004023800A (en) * 2002-06-12 2004-01-22 Mitsuba Corp Brushless motor
DE10301271B3 (en) * 2003-01-15 2004-05-13 Siemens Ag Electric submarine drive motor with detection of pole wheel angle and/or revs via spaced signal sources coupled to drive motor regulation device
GB2413905B (en) * 2004-05-05 2006-05-03 Imra Europ S A S Uk Res Ct Permanent magnet synchronous motor and controller therefor
FR2872644B1 (en) * 2004-06-30 2006-10-06 Valeo Equip Electr Moteur DEVICE FOR CONTROLLING A ROTATING ELECTRIC MACHINE
JP4725109B2 (en) * 2005-01-12 2011-07-13 パナソニック株式会社 Brushless motor
TWI342664B (en) * 2007-04-17 2011-05-21 Delta Electronics Inc Motor and control circiut thereof
TWI361555B (en) * 2008-01-31 2012-04-01 Princeton Technology Corp Control devices and methods
WO2009125527A1 (en) * 2008-04-07 2009-10-15 三菱電機株式会社 Brushless motor position detection device
GB2472297B (en) 2010-07-19 2014-04-23 Protean Electric Ltd Electric motor

Also Published As

Publication number Publication date
US20140265970A1 (en) 2014-09-18
KR101673900B1 (en) 2016-11-08
JP6030142B2 (en) 2016-11-24
EP2771204A2 (en) 2014-09-03
WO2013057614A2 (en) 2013-04-25
KR20140079833A (en) 2014-06-27
GB2483177B (en) 2013-10-02
CN103066756B (en) 2016-03-02
JP2015507910A (en) 2015-03-12
WO2013057614A3 (en) 2015-01-08
EP2771204B1 (en) 2024-11-27
GB201118059D0 (en) 2011-11-30
US9431939B2 (en) 2016-08-30
GB2483177A (en) 2012-02-29
CN103066756A (en) 2013-04-24

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