Title:
【発明の名称】磁気軸受けの制御方法及び装置
Document Type and Number:
Japanese Patent JP3090977
Kind Code:
B2
Abstract:
A control method and apparatus for suppressing the vibration components of a magnetic bearing. According to this invention, a vibration wave is sampled at pulses synchronized with the rotation of a rotor, the vibration waveform sampled values at each revolution are averaged, and only the frequency components synchronized with the rotation frequency of the rotor are extracted from the vibration waveform. In addition, the extracted components are subjected to Fourier transform, processed in a frequency region and subjected to Fourier reverse transform. The sequence of these signal processes produces a signal, and the vibration components are suppressed by this signal.
Inventors:
Mitsuho Yoneyama
Osamu Matsushita
Naohiko Takahashi
Yasuo Fukushima
Osamu Matsushita
Naohiko Takahashi
Yasuo Fukushima
Application Number:
JP15791491A
Publication Date:
September 25, 2000
Filing Date:
May 31, 1991
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
F16C32/04; F16C39/06; F16F15/18; G05B5/01; G05B21/02; (IPC1-7): F16C32/04
Domestic Patent References:
| JP63254219A |
Attorney, Agent or Firm:
Yoshihiro Takasaki