266 0

Local demagnetisation analysis of a permanent magnet motor

Title
Local demagnetisation analysis of a permanent magnet motor
Author
이주
Keywords
permanent magnet motors; synchronous motors; demagnetisation; machine theory; finite element analysis; magnetic fields; machine windings; power factor; torque; local demagnetisation analysis; permanent magnet motor; permanent magnet irreversible demagnetisation; field distributions because; stator currents; local irreversible demagnetisation; V-shaped magnet; concentrated winding; parameter analysis; magnetic field; magnet position; finite element method; maximum load test; thermal saturation test; motor torque; motor efficiency; power factor; induced voltage; synchronous motor
Issue Date
2015-03
Publisher
INST ENGINEERING TECHNOLOGY-IET
Citation
IET ELECTRIC POWER APPLICATIONS, v. 9, NO 3, Page. 280-286
Abstract
Irreversible demagnetisation of a permanent magnet (PM) at high temperature can be caused by the field distributions because of the stator currents. It can be prevented if the magnet thickness is sufficient. However local irreversible demagnetisation can occur even if the magnet thickness is sufficient. The local irreversible demagnetisation is varied according to the magnetic path. To analyse the cause of local irreversible demagnetisation, the authors introduced an interior PMSM (IPMSM), consisting of a V-shaped magnet and concentrated winding, and performed a parameter analysis of the magnetic field based on the barrier width and magnet position considerably related to the magnetic path using the finite-element method. On the basis of the results, the authors developed a model avoiding local irreversible demagnetisation. A maximum load test was performed after a thermal saturation test to confirm whether irreversible demagnetisation of the manufactured models occurred. Finally, to verify the validity of the finite-element analysis (FEA) results, the torque, efficiency, power factor and induced voltage of the manufactured model, which were obtained by FEA, were compared with the test results.
URI
http://ieeexplore.ieee.org/document/7055386/?arnumber=7055386http://hdl.handle.net/20.500.11754/22965
ISSN
1751-8660; 1751-8679
DOI
10.1049/iet-epa.2014.0244
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRICAL AND BIOMEDICAL ENGINEERING(전기·생체공학부) > Articles
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE