International Journal of Precision Engineering and Manufacturing

  • 제4권3호
  • /
  • Pages.5-11
  • /
  • 2003
  • /
  • 2234-7593(pISSN)
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  • 2005-4602(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

A Model of Magnetic Bearings Considering Eddy Currents and Hysteresis

  • Myounggyu Noh (Department of mechatronics Engineering, Chungnam National University)
  • 발행 : 2003.05.01
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초록

A simulation model for radial magnetic bearings is presented. The model incorporates hysteresis, saturation and eddy current effects. A simple magnetization model that describes hysteresis and saturation is proposed. Eddy currents are taken into consideration by assuming that they are generated by single-turn fictitious coils wrapped around each magnetic flux path. The dynamic equations describing the simulation model can easily incorporate the operation of switching power amplifier. A simulation of a typical 8-pole radial magnetic bearing produces switching waveforms very similar to the experimental observation.

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참고문헌

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