Ly. Xu et al., A NEW DESIGN CONCEPT OF PERMANENT-MAGNET MACHINE FOR FLUX WEAKENING OPERATION, IEEE transactions on industry applications, 31(2), 1995, pp. 373-378
In this paper, a new design concept of a PM machine for flux weakening
operation is proposed, The feasibility of strong Bus weakening capabi
lity without permanently demagnetizing the permanent magnet is investi
gated, Results from the finite element analysis on the proposed PM mac
hine structure are presented to verify the new design concept.