Journal of KSNVE (소음진동)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
권호 표지

Displacement Sensorless Active Magnetic Bearing Control by Current Measurement

전류신호를 이용한 능동 자기 베어링계의 제어

  • 권계시 (한국과학기술원, 기계공학과) ;
  • 정호섭 (한국과학기술원, 기계공학과) ;
  • 이종원 (한국과학기술원, 기계공학과)
  • Published : 1995.03.01
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Abstract

An electronic circuit device is developed such that the displacement between an electromagnet and a moving target can be estimated from the coil current measurement, and then applied to an active magnetic bearing system. In order to levitate the shaft without using displacement sensor the stable control gains are obtained from the linearized model which includes the gap estimation circuit. Experimental results show that the shaft, by the estimated gap feedback, can be levitated within $\pm$6 ${\mu}m$ positioning error.

Keywords

References

  1. Proc. of the 2nd Int'l Symp. on Magnetic Bearings A New Approach to Sensorless and Voltage Controlled AMB's based on Network Theory Concept D.Visher;H.bleuler
  2. 3rd Int'l Symp. on Magnetic Bearings Towards Practical Application of Self-Sensing Magnetic Bearing T.Mizuno;H.Bleuler;C.Gahler;D.Visher
  3. 3rd Int'l Symp. on Magnetic Bearings Sensorless Magnetic Levitation Control by Measuring the PWM Carrier Frequency Compontent Y.Okada;K.Mastuda;B.Nagagi
  4. 한국과학기술원 석사학위 논문 전류신호를 이용한 전자기 베어링계의 제어 권계시
  5. 소음 진동 공학회 춘계 학술 대회 능동 자기 베어링 시스템의 설계 김철순;하영호;이종원
  6. 소음 진동 공학회 추계 학술 대회 능동 자기 베어링 지지고속 정밀 회전축계 해석 김승종;김철순;이종원