The permanent-magnet in-wheel motors are very promising candidates for the propulsion of electric vehicles. In particular, the vernier hybrid motor configuration is convenient from the assembling viewpoint, since both windings and permanent magnets are on the stator. A procedure for the preliminary design is developed, combining a magnetic network approach with a linear finite-element (FE) analysis to evaluate the parameters of the network itself. The influence of some geometrical parameters on torque performance is investigated with limited calculation times due to the adoption of a simplified magnetic model. The results are compared with those obtained from a 2D FE code, by which the effects of saturation are also evaluated.
Performance analysis of an in-wheel vernier hybrid motor for electric propulsion
ANDRIOLLO, MAURO;MARTINELLI, GIOVANNI ATTILIO;MORINI, AUGUSTO;TORTELLA, ANDREA
2006
Abstract
The permanent-magnet in-wheel motors are very promising candidates for the propulsion of electric vehicles. In particular, the vernier hybrid motor configuration is convenient from the assembling viewpoint, since both windings and permanent magnets are on the stator. A procedure for the preliminary design is developed, combining a magnetic network approach with a linear finite-element (FE) analysis to evaluate the parameters of the network itself. The influence of some geometrical parameters on torque performance is investigated with limited calculation times due to the adoption of a simplified magnetic model. The results are compared with those obtained from a 2D FE code, by which the effects of saturation are also evaluated.
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