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Numerical Analysis on Iron Loss and PM Loss of Permanent Magnet Synchronous Motor Considering the Carrier Harmonics

  • Lee, Dongsu (School of Electronic and Electrical Engineering, Sungkyunkwan University) ;
  • Kim, Yong-Jae (Department of Electrical Engineering, Chosun University) ;
  • Jung, Sang-Yong (School of Electronic and Electrical Engineering, Sungkyunkwan University)
  • Received : 2012.06.05
  • Accepted : 2012.12.30
  • Published : 2013.06.30

Abstract

In this paper, the influence of inverter switching harmonics on iron loss and PM loss of Permanent Magnet Synchronous Motor (PMSM) is numerically investigated by Finite Element Method (FEM). In particular, nonlinear FEM is applied for a multi-layered PM Synchronous Motors (PMSMs), Interior buried PMSM (IPMSM) and PM assisted Synchronous Reluctance Motor (PMa-SynRM), which are adoptively designed and compared for Electric Vehicle (EV) propulsion. In particular, iron loss and PM eddy-current loss under the real current waveform including the carrier harmonics from inverter switching are numerically analyzed with nonlinear FEM by considering the skewed stator structure employed for minimizing spatial harmonics.

Keywords

IPMSM;PMa-SynRM;carrier harmonics;iron loss;PM loss;FEM

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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