Experimental Verification on Gain Scheduled H Robust Control of a Magnetic Bearing

Toru Namerikawa, Masayuki Fujita, Fumio Matsumura

Research output: Contribution to journalArticlepeer-review


This paper deals with the problem of gyroscopic effect and unbalance vibration of the Magnetic Bearing system. Using a gain scheduled H control with a free parameter Φ, we design a control system which attenuates the unbalance vibration, and guarantees the stability against the gyroscopic effect in specified rotational speed. Further we implement the controller and evaluate the effectiveness of the proposed approach by experiments. First, our experimental setup is explained, a mathematical model of the magnetic bearing is derived. Then, we introduce the gain scheduled H control with free parameters to a magnetic bearing control, in order to reject the disturbances caused by unbalance of the rotor, and guarantee the stability against gyroscopic effect, even if rotational speed of the rotor changes. At last, several experimental results show the effectiveness of this proposed method.

Original languageEnglish
Pages (from-to)561-569
Number of pages9
JournalJSME International Journal, Series C: Mechanical Systems, Machine Elements and Manufacturing
Issue number4
Publication statusPublished - 1997 Dec
Externally publishedYes


  • Digital Control
  • H Control
  • Magnetic Bearing
  • Robust Control
  • Vibration of Rotating Body

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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