Comparative Study of Switched Reluctance Motors Performances for Two Current Distributions and Excitation Modes

Guangjin Li (1) , Javier Ojeda (1) , S Hlioui (2, 1) , Emmanuel Hoang (1) , Mohamed Gabsi (1) , Cederic Balpe (3)

1 SATIE SETE - Systèmes d'Energie pour les Transports et l'Environnement
2 SATIE - Systèmes et Applications des Technologies de l'Information et de l'Energie
3 SAFRAN POWER

This paper presents a 3-phase, 6-slot, and 4-pole Mutually Coupled Switched Reluctance Motor (MCSRM 6/4) with new current distribution. This kind of SRMs has both the merits of conventional SRMs and Fully Pitched SRMs, i.e. shorter end-windings and higher torque density. A comparison based on Finite Element Method (FEM) between conventional and mutually coupled SRMs, in terms of self flux-linkage and inductance per phase, mutual flux-linkage and inductance be-tween phases, and output torque is realized. The conventional SRM is excited in unipolar mode, while the MCSRM is excited in bipolar overlapping mode. With a high coupling between phases for MCSRM, mutual inductances are employed to produce torque. Furthermore, the flux pathways are separated and distributed between phases, this leads to a less sensitivity to magnetic saturation. At high current density and high con-duction angle, the MCSRM has a higher output torque and a lower torque ripple. Thus, comparing to conventional SRMs, the MCSRM is more outstanding for starter-generator applications (hybrid vehicles, aerospace) which needs high output torque.

Mots clés: reluctance motor drive; Finite Element Method (FEM); mutually coupled switching reluctance machines

Domaines: Electromagnétisme; Energie électrique

Guangjin Li, Javier Ojeda, S Hlioui, Emmanuel Hoang, Mohamed Gabsi, et al.. Comparative Study of Switched Reluctance Motors Performances for Two Current Distributions and Excitation Modes. IECON 2009 - 35th Annual Conference on IEEE Industrial Electronics Society, Nov 2009, Porto, Portugal. pp.4047 - 4052, ⟨10.1109/IECON.2009.5415318⟩. ⟨hal-00628819⟩