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Hysteresis model for finite-element analysis of permanent-magnet demagnetization in a large synchronous motor under a fault condition

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3 Author(s)
Rosu, M. ; Ansoft Corp., Pittsburgh, PA, USA ; Saitz, J. ; Arkkio, A.

This paper describes a rare-earth-transition metal alloy permanent-magnet (Nd2Fe14B) hysteretic behavior model within finite-element analysis. The present work analyzes the demagnetization states of permanent magnets during fault conditions in a permanent-magnet synchronous motor and characterizes the ability of the motor to sustain the designed rated outputs after the fault conditions occur.

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Magnetics, IEEE Transactions on  (Volume:41 ,  Issue: 6 )