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

fYear

2015

fDate

March 31 2015-April 2 2015

Firstpage

1

Lastpage

9

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Ecological Vehicles and Renewable Energies (EVER), 2015 Tenth International Conference on

Conference_Location

Monte Carlo

Print_ISBN

978-1-4673-6784-4

Type

conf

DOI

10.1109/EVER.2015.7112967

Filename

7112967