Rare-Earth Free Unity Power Factor Bi-Axial Excitation Synchronous Machine for Traction Applications

• Published in: IEEE transactions on industry applications Vol. 60; no. 4; pp. 5966 - 5978
• Main Authors: Chattopadhyay, Ritvik, Jung, Junyeong, Islam, Md. Sariful, Boldea, Ion, Husain, Iqbal
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.07.2024; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Air gaps; Coils (windings); Demagnetization; Electric vehicles; Excitation; ferrite magnets; Finite element method; Magnets; Power factor; Prototypes; Rare earth elements; rare-earth free; Reactive power; Rotors; Stator windings; Supply chains; Synchronous machines; Topology; Torque; Traction; traction motor; Two dimensional analysis; Unity; unity power factor; Windings; wound field synchronous machine

Rare-earth-based traction machines are subject to supply chain, geo-political, and price fluctuation issues, which makes rare-earth-free motor topologies attractive for electric vehicle (EV) traction applications. In this research, a 24-slot/4-pole, unity power factor, air-cooled, rare-earth-free bi...