JPS6412124A - Control device for magnetic bearing - Google Patents

Control device for magnetic bearing

Info

Publication number
JPS6412124A
JPS6412124A JP16400387A JP16400387A JPS6412124A JP S6412124 A JPS6412124 A JP S6412124A JP 16400387 A JP16400387 A JP 16400387A JP 16400387 A JP16400387 A JP 16400387A JP S6412124 A JPS6412124 A JP S6412124A
Authority
JP
Japan
Prior art keywords
deviation
force
lag
coordinate
damping
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.)
Pending
Application number
JP16400387A
Other languages
Japanese (ja)
Inventor
Kiyoshi Ishida
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.)
Yaskawa Electric Corp
Original Assignee
Yaskawa Electric Manufacturing Co 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 Yaskawa Electric Manufacturing Co Ltd filed Critical Yaskawa Electric Manufacturing Co Ltd
Priority to JP16400387A priority Critical patent/JPS6412124A/en
Publication of JPS6412124A publication Critical patent/JPS6412124A/en
Pending 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
    • F16C32/0451—Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control
    • F16C32/0453—Details of controllers, i.e. the units determining the power to be supplied, e.g. comparing elements, feedback arrangements with P.I.D. control for controlling two axes, i.e. combined control of x-axis and y-axis

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

PURPOSE:To effectively work a generating force as a damping force for deviation by converting a deviation control command signal in a rotary coordinate system to a fixed coordinate system by a lag coordinate conversion corresponding to a lag in a force generating portion to shift a rotational position. CONSTITUTION:A magnetic bearing is adapted to generate magnetic attraction force in actuator coils 111-114 through phase compensators 31, 32, magnetic attraction force linear compensators 91, 92 and power amplifiers 101-104 according to signals x, y, for detecting orthogonal displacement of a rotary shaft. According to the output of a synchronous two-phase oscillators 12, 13 adapted to receive a rotational reference position pulse signal f, the deviation in a fixed coordinate is converted to deviation X, Y in a rotary coordinate by a coordinate converter 4 and converted through a low-pass filter 5 to a fixed coordinate system by a coordinate converter 6 by a phase lagpsi and an inverse number g of damping amount from a function generator 14, with the rotational position shifter in such a manner that the generating force after the lag time is effective for net-damping deviation to compensate a lag. Thus, synchronous damping force can be generated while lag of amplifiers and electromagnets are compensated to reduce deviation.
JP16400387A 1987-07-02 1987-07-02 Control device for magnetic bearing Pending JPS6412124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16400387A JPS6412124A (en) 1987-07-02 1987-07-02 Control device for magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16400387A JPS6412124A (en) 1987-07-02 1987-07-02 Control device for magnetic bearing

Publications (1)

Publication Number Publication Date
JPS6412124A true JPS6412124A (en) 1989-01-17

Family

ID=15784911

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16400387A Pending JPS6412124A (en) 1987-07-02 1987-07-02 Control device for magnetic bearing

Country Status (1)

Country Link
JP (1) JPS6412124A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03139141A (en) * 1989-10-21 1991-06-13 Seiko Seiki Co Ltd Method and apparatus for controlling magnetic bearing
EP0920109A3 (en) * 1997-11-26 2000-12-13 Ebara Corporation Bearingless rotary machine
JP2006258266A (en) * 2005-03-18 2006-09-28 Mitsubishi Electric Corp Magnetic bearing control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03139141A (en) * 1989-10-21 1991-06-13 Seiko Seiki Co Ltd Method and apparatus for controlling magnetic bearing
EP0920109A3 (en) * 1997-11-26 2000-12-13 Ebara Corporation Bearingless rotary machine
JP2006258266A (en) * 2005-03-18 2006-09-28 Mitsubishi Electric Corp Magnetic bearing control device

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