Rare-Earth Free Unity Power Factor Bi-Axial Excitation Synchronous Machine for Traction Applications
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 60(4), 5966–5978.
author keywords: Rotors; Torque; Magnets; Stator windings; Reactive power; Air gaps; Windings; Demagnetization; ferrite magnets; rare-earth free; unity power factor; traction motor; wound field synchronous machine