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WO2008146453A1 - Motor-integrated magnetic bearing - Google Patents

Motor-integrated magnetic bearing Download PDF

Info

Publication number
WO2008146453A1
WO2008146453A1 PCT/JP2008/001191 JP2008001191W WO2008146453A1 WO 2008146453 A1 WO2008146453 A1 WO 2008146453A1 JP 2008001191 W JP2008001191 W JP 2008001191W WO 2008146453 A1 WO2008146453 A1 WO 2008146453A1
Authority
WO
WIPO (PCT)
Prior art keywords
motor
phase
voltage
coils
magnetic bearing
Prior art date
Application number
PCT/JP2008/001191
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroyuki Yamada
Original Assignee
Ntn Corporation
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 Ntn Corporation filed Critical Ntn Corporation
Publication of WO2008146453A1 publication Critical patent/WO2008146453A1/en

Links

Classifications

    • 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
    • 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
    • H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
    • H02P23/20—Controlling the acceleration or deceleration

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Control Of Ac Motors In General (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

A motor-integrated magnetic bearing includes a three-phase rectifier-less motor (28) having phase detectors (40A to 40C) for detecting the phase of a motor rotor (28a). The motor has: a calculation unit (38) for generating a coil current application timing signal for applying current to respective phase coils (28ba) of a motor stator (28b) according to outputs of the phase detectors (40A to 40C); and a power circuit (39) which applies current to the respective phase coils (28ba) of the motor stator (28b) according to the coil current application timing signal outputted from the calculation unit (38). The power circuit (39) has: a voltage variable unit (41) which controls a DC bus voltage as an inter-line voltage of the motor coils (28ba); and a power output unit (39B) which controls the motor coil inter-line voltage as an equivalent voltage based on a pulse width by the pulse modulation; so as to use both of the voltage variable control and the pulse width modulation.
PCT/JP2008/001191 2007-05-18 2008-05-13 Motor-integrated magnetic bearing WO2008146453A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007132363A JP2008289291A (en) 2007-05-18 2007-05-18 Motor-integrated magnetic bearing device
JP2007-132363 2007-05-18

Publications (1)

Publication Number Publication Date
WO2008146453A1 true WO2008146453A1 (en) 2008-12-04

Family

ID=40074731

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/001191 WO2008146453A1 (en) 2007-05-18 2008-05-13 Motor-integrated magnetic bearing

Country Status (2)

Country Link
JP (1) JP2008289291A (en)
WO (1) WO2008146453A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105638646A (en) * 2016-01-08 2016-06-08 何晴雪 Root wetting method using middle-concentration NAA (Naphthalene Acetic Acid) and glycerin gel
CN112468028A (en) * 2020-11-17 2021-03-09 生物岛实验室 Low-speed detection method and device of brushless motor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5941611B2 (en) * 2010-03-30 2016-06-29 立川ブラインド工業株式会社 Control device for electric horizontal blind and control method for electric horizontal blind
JP6067088B2 (en) * 2015-12-01 2017-01-25 立川ブラインド工業株式会社 Control device for electric horizontal blind and control method for electric horizontal blind
CN109217774B (en) * 2018-11-09 2020-06-30 珠海格力电器股份有限公司 Power-on control method and device for magnetic suspension centrifugal unit, storage medium and motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02109014U (en) * 1989-02-17 1990-08-30
JPH0645115U (en) * 1992-09-16 1994-06-14 株式会社安川電機 Thrust magnetic bearing for turbo machinery
JPH06261590A (en) * 1993-03-04 1994-09-16 Matsushita Electric Ind Co Ltd Driving device of sensorless brushless motor
JP2623202B2 (en) * 1993-01-08 1997-06-25 鹿島建設株式会社 Pneumatic refrigeration cycle device
JP2001251879A (en) * 2000-03-02 2001-09-14 Yaskawa Electric Corp Motor control device and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02109014U (en) * 1989-02-17 1990-08-30
JPH0645115U (en) * 1992-09-16 1994-06-14 株式会社安川電機 Thrust magnetic bearing for turbo machinery
JP2623202B2 (en) * 1993-01-08 1997-06-25 鹿島建設株式会社 Pneumatic refrigeration cycle device
JPH06261590A (en) * 1993-03-04 1994-09-16 Matsushita Electric Ind Co Ltd Driving device of sensorless brushless motor
JP2001251879A (en) * 2000-03-02 2001-09-14 Yaskawa Electric Corp Motor control device and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105638646A (en) * 2016-01-08 2016-06-08 何晴雪 Root wetting method using middle-concentration NAA (Naphthalene Acetic Acid) and glycerin gel
CN112468028A (en) * 2020-11-17 2021-03-09 生物岛实验室 Low-speed detection method and device of brushless motor

Also Published As

Publication number Publication date
JP2008289291A (en) 2008-11-27

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