Title :
Finite element analysis of brushless DC motors for flux weakening operation
Author :
Ionel, Dan M. ; Balchin, Martin J. ; Eastham, John F. ; Demeter, Elek
Author_Institution :
Res. Inst. for Electr. Machines, Bucharest, Romania
fDate :
9/1/1996 12:00:00 AM
Abstract :
Finite element analysis is used to obtain the non-linear variation of axis and cross-axis flux-linkages for a dq model of an interior magnet, brushless DC motor (BLDC). The model is used to compare competing designs of the conventional form of BLDC with designs of a novel type that has q-axis flux barriers. It is shown that the flux-barrier motor will give (i) equal rated performance, and (ii) better over-rating performance
Keywords :
brushless DC motors; finite element analysis; machine theory; magnetic flux; permanent magnet motors; brushless DC motor; design; dq model; finite element analysis; flux weakening; interior magnet; nonlinear flux linkage; q-axis flux barrier; Brushless DC motors; Couplings; DC motors; Finite element methods; Magnetic analysis; Magnetic flux; Magnetostatics; Saturation magnetization; Torque; Traction motors;
Journal_Title :
Magnetics, IEEE Transactions on
