This paper presents the modelling and design optimization of an axial-flux brushless permanent-magnet motor with one rotor-two stators configuration. This particular axialflux machine is suitable to traction applications. The reason is that, firstly, fixing of the stators may be arranged reasonably easily; secondly, the topology with two stators is able to operate even if one of its stators is electrically disconnected; thirdly, the axial loading of bearings is small due to the symmetry of the motor structure. A prototype machine was designed and manufactured for verifying the design optimization results.
A.Egea, G.Almandoz1, J.Poza and A.Gonzalez, “Analytic Model of Axial Flux Permanent Magnet Machines Considering Spatial Harmonics”, International Symposium on Power Electronics, Electrical Drives, Automation and Motion – SPEEDAM 2010.
Parviainen, A., Niemelä, M., Pyrhönen, J., 2003a. “Analytical, 2D FEM and 3D FEM modeling of PM axial-flux machines ”, Proceedings of 10th European Conference on Power Electronics and Applications – EPE 2003, CD-ROM.
J. F. Gieras, R. Wang, and M. J. Kamper, “Axial Flux Permanent Magnet Brushless Machines”, 2004 Kluwer.
N. Chaker, I. B. Salah, S. Tounsi and R. Neji, “Design of Axial-Flux Motor for Traction Application” Journal of Electromagnetic Analysis and Applications, 2009, 2, pp. 73-83.
Seyyed Mehdi Mirimani, Abolfazl Vahedi, “Developing a 3DFEM Model for Electromagnetic Analysis of an Axial Flux Permanent Magnet Machine” Journal of Electromagnetic Analysis and Applications, 2010, 2, pp.258-263.
S. Tounsi, F. Gillon, S. Brisset, P. Brochet, R. Neji, “Design of an axial flux brushless DC motor for electric vehicle”, Proceedings of International Conference on Electrical Machines – ICEM 2002, CD-ROM.
Z. Zhang, F. Profumo, A. Tenconi, "Design of an axial flux interior PM synchronous motor with a wide speed range", Proceedings of International Conference on Electrical Machines – ICEM 1996, Vol. III, pp. 273-278.
Brushless Permanent Magnet Motor Tutorial, Flux 2D version 7.5, Cedrat, March 2001.
A. Parviainen, “Design of Axial-flux Permanent Magnet Lowspeed Machines and Performance Comparison between Radial-flux and Axial-flux Machines”, Ph.D. Thesis, Lappeenranta University of Technology, Finland, 2005.
C.H. Lim, G. Airoldi, J.R. Bumby, R.G. Dominy, G.I. Ingram, K. Mahkamov, N.L. Brown, a Mebarki, and M. Shanel, “Experimental and CFD investigation of a lumped parameter thermal model of a singlesided, slotted axial flux generator,” International Journal of Thermal Sciences, vol. 49, Sep. 2010, pp. 1732-1741.
Z.Q. Zhu, D. Howe, E. Bolte and B. Ackermann, "Instantaneous Magnetic Fiel Distribution in Brushless Permanent Magnet DC Motors I: Open-circuit Field", IEEE Transactions on Magnetics, vol. 29, no. 1, pp. 124-135, 1993.
S. Tounsi, “Modélisation et optimisation de la motorisation et de l’autonomie d’un véhicule électrique,” Thèse de doctorat, Ecole Nationale d’Ingénieurs de Sfax, Tunisia, 2006.