JPH0256914U - - Google Patents
Info
- Publication number
- JPH0256914U JPH0256914U JP13601588U JP13601588U JPH0256914U JP H0256914 U JPH0256914 U JP H0256914U JP 13601588 U JP13601588 U JP 13601588U JP 13601588 U JP13601588 U JP 13601588U JP H0256914 U JPH0256914 U JP H0256914U
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- motor
- control means
- caused
- magnetic bearing
- 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
- 238000001514 detection method Methods 0.000 claims description 2
- 230000005284 excitation Effects 0.000 claims 2
- 238000005339 levitation Methods 0.000 claims 2
- 230000004907 flux Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Description
第１図は本考案装置の概略構成を示すブロツク
図および第２図は波形図である。
１…ロータ、２ａ，２ｂ…電磁石、３…回転セ
ンサ、４ａ，４ｂ…位置センサ、１０…位置検出
回路、１１…補償回路、１２，１３…第１、第２
トラツキングフイルタ回路、１４…電磁石駆動回
路、１５…回転周波数発生回路、１６…ゲイン調
整回路、２０…ハイパスフイルタ、２１…ローパ
スフイルタ、２２…逆数回路、ａ…磁気軸受本体
、ｂ…制御手段。
FIG. 1 is a block diagram showing a schematic configuration of the device of the present invention, and FIG. 2 is a waveform diagram. DESCRIPTION OF SYMBOLS 1... Rotor, 2a, 2b... Electromagnet, 3... Rotation sensor, 4a, 4b... Position sensor, 10... Position detection circuit, 11... Compensation circuit, 12, 13... First, second
Tracking filter circuit, 14... Electromagnet drive circuit, 15... Rotational frequency generation circuit, 16... Gain adjustment circuit, 20... High pass filter, 21... Low pass filter, 22... Reciprocal circuit, a... Magnetic bearing body, b... Control means.
Claims (1)
子ポンプのロータ等を電磁石により浮上保持して
軸支するとともに、上記ロータをモータにより回
転駆動させる磁気軸受本体と、前記ロータの浮上
位置を検出する位置センサと、該位置センサの検
出信号を入力するとともに、前記電磁石へ励磁電
流を出力する制御手段とからなり、該制御手段に
より励磁電流を調整してロータを所定の目標位置
に浮上保持させるようにした磁気軸受の制御装置
において、 前記制御手段には前記モータの回転に起因する
外乱を除去するトラツキングフイルタ回路と、前
記ロータが偏心して回転することによる磁束密度
の変化に伴う浮上保持力のアンバランスを補正す
るゲイン調整回路とが設けられていることを特徴
とする磁気軸受の制御装置。[Claims for Utility Model Registration] A magnetic bearing body that levitates and supports a spindle rotor of a machine tool or a rotor of a turbo molecular pump using an electromagnet, and rotates the rotor with a motor, and a floating position of the rotor. The control means inputs the detection signal of the position sensor and outputs an excitation current to the electromagnet, and the control means adjusts the excitation current to levitate the rotor to a predetermined target position. In the magnetic bearing control device, the control means includes a tracking filter circuit that removes disturbances caused by the rotation of the motor, and a levitation circuit that removes disturbances caused by the rotation of the motor, and levitation caused by changes in magnetic flux density caused by eccentric rotation of the rotor. A control device for a magnetic bearing, characterized in that it is provided with a gain adjustment circuit that corrects an imbalance in holding force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13601588U JPH0256914U (en) | 1988-10-18 | 1988-10-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13601588U JPH0256914U (en) | 1988-10-18 | 1988-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0256914U true JPH0256914U (en) | 1990-04-24 |
Family
ID=31396135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13601588U Pending JPH0256914U (en) | 1988-10-18 | 1988-10-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0256914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010164185A (en) * | 2009-01-19 | 2010-07-29 | Ihi Corp | Magnetic bearing control device and method |
-
1988
- 1988-10-18 JP JP13601588U patent/JPH0256914U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010164185A (en) * | 2009-01-19 | 2010-07-29 | Ihi Corp | Magnetic bearing control device and method |
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