Title :
A consequent pole, dual rotor, axial flux vernier permanent magnet machine
Author :
Tianjie Zou ; Ronghai Qu ; Jian Li ; Dawei Li ; Leilei Wu
Author_Institution :
State Key Lab. of Adv. Electromagn. Eng. & Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
March 31 2015-April 2 2015
Abstract :
A consequent pole, dual rotor, axial flux vernier permanent magnet (VPM) machine is developed to reduce magnet usage and increase torque density. Its end winding length is much shorter than that of regular VPM machines due to its toroidal winding configuration. The configurations and features of the proposed machine are discussed. Benefited from its vernier and consequent pole structure, this new machine exhibits much higher back-EMF and torque density than that of a regular dual rotor axial flux machine, while the magnet usage is halved. The influence of main design parameters, such as slot opening, ratio of inner to outer stator diameter, magnet thickness etc., on torque performance is analyzed based on the quasi-3-dimensional (quasi-3D) finite element analysis (FEA). The analyzing results are validated by real 3D FEA.
Keywords :
finite element analysis; permanent magnet machines; stators; torque; VPM machine; axial flux vernier permanent magnet machine; back-EMF; consequent pole vernier permanent magnet machine; dual rotor vernier permanent magnet machine; end winding length; inner-outer stator diameter ratio; magnet thickness; magnet usage reduction; quasi-3-dimensional finite element analysis; quasi-3D FEA; slot opening; toroidal winding configuration; torque density; torque performance; Reliability engineering; Stator cores; Stator windings; Windings; Consequent pole; axial flux; dual rotor; quasi-3D FEA; vernier permanent magnet machine;
Conference_Titel :
Ecological Vehicles and Renewable Energies (EVER), 2015 Tenth International Conference on
Conference_Location :
Monte Carlo
Print_ISBN :
978-1-4673-6784-4
DOI :
10.1109/EVER.2015.7112967
