Title :
Hysteresis model for finite-element analysis of permanent-magnet demagnetization in a large synchronous motor under a fault condition
Author :
Rosu, Marius ; Saitz, Július ; Arkkio, Antero
Author_Institution :
Ansoft Corp., Pittsburgh, PA, USA
fDate :
6/1/2005 12:00:00 AM
Abstract :
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.
Keywords :
boron alloys; demagnetisation; finite element analysis; iron alloys; machine theory; magnetic hysteresis; neodymium alloys; permanent magnet motors; permanent magnets; synchronous motors; Nd2Fe14B; Preisach model; demagnetization states; fault condition; finite-element analysis; hysteresis model; large synchronous motor; magnetic field modeling; permanent-magnet demagnetization; permanent-magnet hysteretic behavior model; permanent-magnet synchronous motor; rare-earth-transition metal alloy; Demagnetization; Finite element methods; Magnetic anisotropy; Magnetic fields; Magnetic hysteresis; Magnetic materials; Permanent magnet motors; Permanent magnets; Perpendicular magnetic anisotropy; Synchronous motors; Finite-element methods; Preisach model; magnetic field modeling; permanent magnets; permanent-magnet synchronous motor;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.848319
