JPS6412124A - Control device for magnetic bearing - Google Patents
Control device for magnetic bearingInfo
- 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
Links
- 238000013016 damping Methods 0.000 abstract 4
- 230000001360 synchronised effect Effects 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 abstract 1
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.
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)
| 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 |
-
1987
- 1987-07-02 JP JP16400387A patent/JPS6412124A/en active Pending
Cited By (3)
| 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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