JPS5765416A - Control circuit system for magnetic bearing - Google Patents

Control circuit system for magnetic bearing

Info

Publication number
JPS5765416A
JPS5765416A JP14127380A JP14127380A JPS5765416A JP S5765416 A JPS5765416 A JP S5765416A JP 14127380 A JP14127380 A JP 14127380A JP 14127380 A JP14127380 A JP 14127380A JP S5765416 A JPS5765416 A JP S5765416A
Authority
JP
Japan
Prior art keywords
circuit
control
coil
coils
rotating body
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
JP14127380A
Other languages
Japanese (ja)
Other versions
JPS6411845B2 (en
Inventor
Hirotsugu Tanaka
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14127380A priority Critical patent/JPS5765416A/en
Publication of JPS5765416A publication Critical patent/JPS5765416A/en
Publication of JPS6411845B2 publication Critical patent/JPS6411845B2/ja
Granted legal-status Critical Current

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
    • F16C32/0444—Details of devices to control the actuation of the electromagnets

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Position Or Direction (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

PURPOSE: To simplify the constitution of circuits for a bearing device which supports a rotating body with two magnetic bearings provided with control coils, by converting two current components flowing through the control coils, into a signal through a differential amplification circuit and feeding back the signal.
CONSTITUTION: To support a rotating body with two magnetic bearings comprising permanent magnets and control coils 34, 37, the position of the rotating body is detected by a displacement sensor 30 and its output is handled through a displacement signal processing circuit 31 and a phase compensation circuit 32 to perform phase compensation. The output of the circuit 32 is applied to a power amplification circuit 33 to supply control power to the coil 34 and is also processed through a phase inversion circuit 35 and another power amplification circuit 36 to supply the coil 37 with a control current for generating magnetic field opposite to that by the coil 37. The control currents of the coils 34, 37 are detected by DC detection circuits 38, 39, whose detection signals are processed by a differential amplification circuit 40. The output of the circuit 40 is integrated at 41. The integrated signal is fed back to the displacement signal processing circuit 31.
COPYRIGHT: (C)1982,JPO&Japio
JP14127380A 1980-10-09 1980-10-09 Control circuit system for magnetic bearing Granted JPS5765416A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14127380A JPS5765416A (en) 1980-10-09 1980-10-09 Control circuit system for magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14127380A JPS5765416A (en) 1980-10-09 1980-10-09 Control circuit system for magnetic bearing

Publications (2)

Publication Number Publication Date
JPS5765416A true JPS5765416A (en) 1982-04-21
JPS6411845B2 JPS6411845B2 (en) 1989-02-27

Family

ID=15288049

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14127380A Granted JPS5765416A (en) 1980-10-09 1980-10-09 Control circuit system for magnetic bearing

Country Status (1)

Country Link
JP (1) JPS5765416A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983829A (en) * 1982-11-02 1984-05-15 Seiko Instr & Electronics Ltd Low-power consumption radial electromagnet for magnetic bearing
US4841184A (en) * 1987-06-23 1989-06-20 Mechanical Technology Incorporated Velocity and imbalance observer control circuit for active magnetic bearing or damper
US4976177A (en) * 1986-11-13 1990-12-11 S.A.: Societe Europeenne De Propulsion Workpiece-carrier spindle assembly having magnetic bearings, and a device implementing such an assembly for a very high precision machine tool
US5013987A (en) * 1989-07-18 1991-05-07 Seiko Instruments Inc. Control system for magnetic bearing
US5066879A (en) * 1989-04-28 1991-11-19 Nippon Ferrofluidics Corporation Single power source magnetic bearing device
US5312226A (en) * 1991-10-14 1994-05-17 Hitachi, Ltd. Turbo compressor and method of controlling the same
JP2008256084A (en) * 2007-04-04 2008-10-23 Jtekt Corp Magnetic bearing device and magnetic bearing spindle device
CN106907393A (en) * 2017-03-02 2017-06-30 常州市翰琪电机有限公司 The control method and its device of a kind of intelligent motorized spindle supported with AMB

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105573349A (en) * 2015-12-15 2016-05-11 华北电力科学研究院有限责任公司 Limiting sensor and limiting device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983829A (en) * 1982-11-02 1984-05-15 Seiko Instr & Electronics Ltd Low-power consumption radial electromagnet for magnetic bearing
JPH0314084B2 (en) * 1982-11-02 1991-02-26 Seiko Instr & Electronics
US4976177A (en) * 1986-11-13 1990-12-11 S.A.: Societe Europeenne De Propulsion Workpiece-carrier spindle assembly having magnetic bearings, and a device implementing such an assembly for a very high precision machine tool
US4841184A (en) * 1987-06-23 1989-06-20 Mechanical Technology Incorporated Velocity and imbalance observer control circuit for active magnetic bearing or damper
US5066879A (en) * 1989-04-28 1991-11-19 Nippon Ferrofluidics Corporation Single power source magnetic bearing device
US5013987A (en) * 1989-07-18 1991-05-07 Seiko Instruments Inc. Control system for magnetic bearing
US5312226A (en) * 1991-10-14 1994-05-17 Hitachi, Ltd. Turbo compressor and method of controlling the same
JP2008256084A (en) * 2007-04-04 2008-10-23 Jtekt Corp Magnetic bearing device and magnetic bearing spindle device
CN106907393A (en) * 2017-03-02 2017-06-30 常州市翰琪电机有限公司 The control method and its device of a kind of intelligent motorized spindle supported with AMB

Also Published As

Publication number Publication date
JPS6411845B2 (en) 1989-02-27

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