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An augmented circuit model for magnetic bearings including eddy currents, fringing, and leakage | IEEE Journals & Magazine | IEEE Xplore

An augmented circuit model for magnetic bearings including eddy currents, fringing, and leakage


Abstract:

Magnetic bearings are often designed using magnetic circuit theory. When these bearings are built, however, effects not included in the usual circuit theory formulation h...Show More

Abstract:

Magnetic bearings are often designed using magnetic circuit theory. When these bearings are built, however, effects not included in the usual circuit theory formulation have a significant influence on bearing performance. Two significant sources of error in the circuit theory approach are the neglect of leakage and fringing effects and the neglect of eddy current effects. This work formulates an augmented circuit model in which eddy current and flux leakage and fringing effects are included. Electrical impedance predictions from the model are found to be in good agreement with experimental data from a typical magnetic bearing.
Published in: IEEE Transactions on Magnetics ( Volume: 32, Issue: 4, July 1996)
Page(s): 3219 - 3227
Date of Publication: 06 August 2002

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