Title :
Computing the field in permanent-magnet axial-field motors
Author_Institution :
Imaging Res. & Adv. Dev. Labs., Eastman Kodak Co., Rochester, NY, USA
fDate :
9/1/1994 12:00:00 AM
Abstract :
A closed-form expression is presented for computing the axial field in the coil region of permanent-magnet axial-field motors. This expression, which is based on a two-dimensional approximation of the motor geometry, takes into account the finite slope of the demagnetization curve of the permanent-magnet. It can be used to perform parametric studies of field strength and to test new numerical methods. It is tested using finite element analysis (FEA)
Keywords :
demagnetisation; finite element analysis; machine theory; magnetic fields; permanent magnet motors; FEA; FEM; axial field computation; axial-field motors; coil region; demagnetization curve; field strength; finite element analysis; motor geometry; numerical method testing; permanent-magnet motors; two-dimensional approximation; Brushless DC motors; Coils; DC motors; Equations; Geometry; Magnetic analysis; Magnetic flux; Magnetostatics; Permanent magnet motors; Testing;
Journal_Title :
Magnetics, IEEE Transactions on
