Repository logo

Infoscience

  • English
  • French
Log In
Logo EPFL, École polytechnique fédérale de Lausanne

Infoscience

  • English
  • French
Log In
  1. Home
  2. Academic and Research Output
  3. Conferences, Workshops, Symposiums, and Seminars
  4. A Practical Solution to Mitigate Vibrations in Industrial PM Motors Having Concentric Windings
 
conference paper

A Practical Solution to Mitigate Vibrations in Industrial PM Motors Having Concentric Windings

Cassat, Alain  
•
Espanet, Christophe
•
Coleman, Ralph
Show more
2012
Ieee Transactions On Industry Applications
IEEE Energy Conversion Congress and Exposition (ECCE)

Industry applications involving torque brushless dc motors require high efficiency over a large speed range. In order to achieve such specifications, flux weakening is necessary, which could lead to relative high electromagnetically induced vibrations and consequently to audible noises. Furthermore, in order to decrease cogging torque and to satisfy motor manufacturing constraints, concentric windings are usually considered. Such motor configurations lead to harmonics of the electromagnetic forces being the sources of mechanical vibrations. This paper focuses on the electromagnetic forces created in surface-mounted permanent magnet and internal permanent magnet motors for two concentric windings: one and two coil sides per slot. These forces are determined using both lumped magnetic scheme and two-dimensional finite-element (FE) simulations. Then, three-dimensional FE simulations enable to predict the mechanical modes and the acoustic radiated power. Finally, the authors propose a simple method to mitigate the magnetic forces and their variations. This method deals with skewing the stator. The skewing angle is optimized differently as in the usual case of decreasing the cogging torque. This method is really interesting for industry applications, because does not require any important change in the motor construction. The acoustic measurements confirm the analysis and the proposed improvement technique (stator skewing).

  • Details
  • Metrics
Type
conference paper
DOI
10.1109/Tia.2012.2210172
Web of Science ID

WOS:000309053800010

Author(s)
Cassat, Alain  
Espanet, Christophe
Coleman, Ralph
Burdet, Luc
Leleu, Emmanuel
Torregrossa, Dimitri
M'Boua, Jeremie
Miraoui, Abdellatif
Date Issued

2012

Publisher

Ieee-Inst Electrical Electronics Engineers Inc

Publisher place

Piscataway

Published in
Ieee Transactions On Industry Applications
Total of pages

13

Volume

48

Issue

5

Start page

1526

End page

1538

Subjects

Brushless dc (BLDC) motors

•

concentric windings

•

forces

•

internal permanent magnet (IPM)

•

surface-mounted permanent magnet (SMPM)

•

vibrations

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LAI  
Event name
IEEE Energy Conversion Congress and Exposition (ECCE)
Available on Infoscience
February 27, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/89543
Logo EPFL, École polytechnique fédérale de Lausanne
  • Contact
  • infoscience@epfl.ch

  • Follow us on Facebook
  • Follow us on Instagram
  • Follow us on LinkedIn
  • Follow us on X
  • Follow us on Youtube
AccessibilityLegal noticePrivacy policyCookie settingsEnd User AgreementGet helpFeedback

Infoscience is a service managed and provided by the Library and IT Services of EPFL. © EPFL, tous droits réservés