F. Barrero and M. J. Duran, Recent advances in the design, modeling and control of multiphase machines-part 1, IEEE Trans. Ind. Electron, vol.63, issue.3, pp.449-458, 2016.

K. Wang, Z. Q. Zhu, and G. Ombach, Torque improvement of five-phase surface-mounted permanent magnet machine using third-order harmonic, IEEE Trans. Energy Convers, vol.29, issue.3, pp.735-747, 2014.

A. Abdelkhalik, M. Masoud, and W. Barry, Eleven-phase induction machine: steady-state analysis and performance evaluation with harmonic injection, IET Electr. Power Appl, vol.4, issue.8, pp.670-685, 2010.

R. Zhang, J. Li, R. Qu, and D. Li, Analysis and design of triple-rotor axialflux spoke-array vernier permanent magnet machines, IEEE Trans. Ind. Appl, vol.54, issue.1, pp.244-253, 2017.

W. Geng and Z. Zhang, Analysis and implementation of new ironless stator axial-flux permanent magnet machine with concentrated nonoverlapping windings, IEEE Trans. Energy Convers, vol.33, issue.3, pp.1274-1284, 2018.

A. Mahmoudi, N. A. Rahim, and W. P. Hew, Axial-flux permanent-magnet machine modeling, design, simulation and analysis, Scientific Research and Essays, vol.6, issue.12, pp.2525-2549, 2011.

F. Locment, E. Semail, and F. Piriou, Design and study of a multiphase axial-flux machine, IEEE Trans. Magn, vol.42, issue.4, 2006.
URL : https://hal.archives-ouvertes.fr/hal-00876147

F. Locment, E. Semail, and X. Kestelyn, Vectorial approach-based control of a seven-phase axial flux machine designed for fault operation, IEEE Trans. Indus. Electr, vol.55, issue.10, pp.3682-3691, 2008.
URL : https://hal.archives-ouvertes.fr/hal-00817669

D. T. Vu, N. K. Nguyen, E. Semail, and T. J. Moraes, Torque optimization of seven-phase BLDC machines in normal and degraded modes with constraints on current and voltage, The 9th International Conference on Power Electronics, Machines and Drives, 2018.
URL : https://hal.archives-ouvertes.fr/hal-01882858