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A Model of Magnetic Bearings Considering Eddy Currents and Hysteresis  

Myounggyu Noh (Department of mechatronics Engineering, Chungnam National University)
Publication Information
International Journal of Precision Engineering and Manufacturing / v.4, no.3, 2003 , pp. 5-11 More about this Journal
Abstract
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.
Keywords
Magnetic bearing; magnetic circuit model; Hysteresis; Eddy currents;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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