Magnetic Field Solution in Doubly-Slotted Airgap of Conventional and Alternate Field-Excited Switched-Flux Topologies

Benjamin Gaussens (1) , Emmanuel Hoang (1) , Olivier de La Barrière (2) , J. Saint Michel (3) , Michel Lécrivain (4) , Mohamed Gabsi (1)

1 SATIE - Systèmes et Applications des Technologies de l'Information et de l'Energie
2 SATIE-MME - Matériaux Magnétiques pour l'Energie
3 Leroy Somer - Leroy Somer
4 LESIR - Laboratoire d'Electricité des Signaux et de Robotique

A general solution of the magnetic field in the airgap of Conventional and Alternate Field-Excited Switched-Flux (FE-SF) machines is proposed in this paper. The analytical model is based on subdomain method. It involves solution of governing field equations in a doubly-slotted airgap using the variable separation method. The complete model is derived and described in a general manner so that it can be easily extended to unconventional FE-SF topologies. By means of example, analytical predictions of airgap field are extensively compared and validated using 2D FE results. FE simulations were performed on a 24-10 classical FE-SF structure and also, on a novel 18-11 FE-SF machine with additional spacer teeth.

Domaines: Electromagnétisme

Benjamin Gaussens, Emmanuel Hoang, Olivier de La Barrière, J. Saint Michel, Michel Lécrivain, et al.. Magnetic Field Solution in Doubly-Slotted Airgap of Conventional and Alternate Field-Excited Switched-Flux Topologies. IEEE Transactions on Magnetics, 2013, pp.X. ⟨hal-00880939⟩