Investigation of Direct & Quadrature Current Effects on Demagnetization of Flux Switching Permanent Magnet Motors

In recent years flux-switching permanent magnet machines have become popular for industrial applications and research, due to advantages such as robustness, high torque, and power density. However, as permanent magnet motors, their performance is affected by demagnetization. It is known, for example...

Full description

Saved in:
Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2018-11, Vol.433 (1), p.12092
Main Authors: Mahmouditabar, F, Vahedi, A, Bafghi, M.H
Format: Article
Language:English
Subjects:
Demagnetization
Finite element method
Flux density
Industrial applications
Magnetism
Motors
Permanent magnets
Quadratures
Switching
Time stepping finite elements
Torque
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In recent years flux-switching permanent magnet machines have become popular for industrial applications and research, due to advantages such as robustness, high torque, and power density. However, as permanent magnet motors, their performance is affected by demagnetization. It is known, for example, that armature reactions and temperature increases cause permanent magnet demagnetization that leads to power and torque density reduction in motors. In this paper, partially irreversible demagnetization in an flux-switching permanent magnet motor will be investigated using the time stepping finite element method. In addition, the effects of the d and q - axis currents on this type of demagnetization are evaluated by considering several points on the magnets and comparing the flux density of these points with the flux density of the knee point. It is shown that an increase of the q-axis current component increases the machine's demagnetization tolerance.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/433/1/012092