JPS57173614A - Controller for magnetic bearing - Google Patents

Controller for magnetic bearing

Info

Publication number
JPS57173614A
JPS57173614A JP5940281A JP5940281A JPS57173614A JP S57173614 A JPS57173614 A JP S57173614A JP 5940281 A JP5940281 A JP 5940281A JP 5940281 A JP5940281 A JP 5940281A JP S57173614 A JPS57173614 A JP S57173614A
Authority
JP
Japan
Prior art keywords
radial
thrust bearing
damping force
motion
controller
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
JP5940281A
Other languages
Japanese (ja)
Other versions
JPS6237246B2 (en
Inventor
Shiro Hagiwara
Kazuo Tsuchiya
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP5940281A priority Critical patent/JPS57173614A/en
Publication of JPS57173614A publication Critical patent/JPS57173614A/en
Publication of JPS6237246B2 publication Critical patent/JPS6237246B2/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
    • 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
    • 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
    • F16C32/0474—Active magnetic bearings for rotary movement
    • F16C32/0476—Active magnetic bearings for rotary movement with active support of one degree of freedom, e.g. axial magnetic bearings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

PURPOSE:To apply damping force in the radial direction of a magnetic thrust bearing as well as in the axial direction, by also feeding a signal proportional to the radial speed, back to a controller for the magnetic thrust bearing. CONSTITUTION:The radial motion of a rotor 1 and its axial motion are dynamically combined with each other by placing the center of gravity of the rotor off its geometrical center. After phase compensation is effected on the outputs of radial position sensors 7b, 7c, 8b by a phase compensation circuit 10b, the outputs are fed back to an axial control loop 13 through an operational amlifier 9b to cause magnetic damping force by a magnetic thrust bearing. The damping force is combined with the radial motion to damp it to attenuate radial vibration well.
JP5940281A 1981-04-20 1981-04-20 Controller for magnetic bearing Granted JPS57173614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5940281A JPS57173614A (en) 1981-04-20 1981-04-20 Controller for magnetic bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5940281A JPS57173614A (en) 1981-04-20 1981-04-20 Controller for magnetic bearing

Publications (2)

Publication Number Publication Date
JPS57173614A true JPS57173614A (en) 1982-10-26
JPS6237246B2 JPS6237246B2 (en) 1987-08-11

Family

ID=13112242

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5940281A Granted JPS57173614A (en) 1981-04-20 1981-04-20 Controller for magnetic bearing

Country Status (1)

Country Link
JP (1) JPS57173614A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942321A (en) * 1987-10-07 1990-07-17 Yoichi Kanemitsu Radial magnetic bearing system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4942321A (en) * 1987-10-07 1990-07-17 Yoichi Kanemitsu Radial magnetic bearing system

Also Published As

Publication number Publication date
JPS6237246B2 (en) 1987-08-11

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