Dynamics and Stability of Magnetic Suspension Systems Using Tuned LC Circuit

概要

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To date, practical dynamic model of magnetic suspension systems using tuned LC circuits has not been established. This paper develops a transfer function model for such systems by linearizing system equations near the equilibrium state. This model not only nicely explains the inherent dynamic instability, but also provides a theoretical basis for analyzing and synthesizing system dynamic behaviors. A new dynamic stabilization method is also proposed. This method applies damping to the movable "stator" rather than to the suspended object directly, and consequently stable suspension without any mechanical contact is achieved. Experimental results are shown to confirm the theoretical analysis.
一般社団法人日本機械学会の論文
1994-09-15