Design and Study of a Multi-phase Axial-flux machine

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Locment, Fabrice | Semail, Eric | Piriou, Francis

Edité par HAL CCSD ; Institute of Electrical and Electronics Engineers

Adresse URL de l'éditeur http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=1608484&isnumber=33780 Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.. International audience. In this paper, a 7-phase Axial-flux Double-rotor Permanent Magnet Synchronous Machine is studied using analytical and Finite Element methods. This type of machine shows a higher sensitivity to the inductance harmonics and electromotive force (emf) compared with the 3-phase machines. So, the conventional analytical modeling method, in which only the first harmonic is taken into account, leads to significant errors in the determination of the control parameters, e.g. the frequency of Pulse Width Modulation Voltage Source Inverter. A multi-machine model explains the reasons for this sensitivity and a more sophisticated analytical method is used. Results are compared with those obtained by the 3-D FEM.

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