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Contribution to the Modeling of the Magnetic Field in Vacuum of Ironless Motors : Applications to the Dimensioning of Axial Flux Ironless Motors for UAVs

par Laurence Laffont - publié le , mis à jour le

Maxime BONNET’s thesis defense intitled "Contribution à la modélisation du champ magnétique à vide de moteurs sans fer : applications aux dimensionnements de moteurs à flux axial sans fer pour drones" (Contribution to the modeling of the magnetic field in vacuum of ironless motors : applications to the dimensioning of axial flux ironless motors for UAVs) will take place on Monday, November 22nd 2021 at 10.00 am room C002 on site NSEEIHT, and by visioconference as well.

Link :

Reunion ID : 919 5537 5828
Password : 149755

Work has been supervized by Yvan LEFÈVRE, François DEFAY and Jean-François LLIBRE.

Abstract :

This thesis presents the design of an ironless axial flux motor, directly connected to the propeller of an UAV. This design is based on the development of an open circuit magnetic field model based on integral field formulations. Using the finite element formalism and taking into account the symmetries and geometries of the motor, the calculation of the open circuit field has been greatly accelerated for optimisation. A direct sizing model is implemented from this open circuit field model to calculate the performance of this type of motor.
The speed and accuracy of the proposed model is validated by finite element software and experimental measurements on prototypes. The latter use 3D printing for rapid prototyping. The developed model is used in a parametric optimisation process. This enables the prototypes to be improved and a motor to be sized to meet the specifications for a drone application.