Journal of Magnetics

The Korean Magnetics Society (한국자기학회)
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Comparative Analysis of Flux-Reversal Motors with Six-Switch and Four-Switch Converters

  • Kang, Hyun-Soo (ADT Co. Ltd.) ;
  • Lee, Byoung-Kuk (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Kim, Tae Heoung (Department of Electrical Engineering, Engineering Research Institute, Gyeongsang National University)
  • Received : 2012.12.10
  • Accepted : 2013.02.13
  • Published : 2013.03.31
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Abstract

In this paper, the 6-switch inverter for the Flux-Reversal Motor (FRM) has been presented and compared to the 4-switch inverter for the FRM, which is more popular in cost effective applications. To analyze the FRM, we adopted the two-dimensional time-stepped voltage source finite element method (FEM) that uses the actual pulse width modulation (PWM) voltage waveforms as the input data. As the FRM characteristic analysis of actual pwm voltage input, the torque ripples and iron losses (eddy current and hysteresis loss) of the FRM can be precisely calculated. With the simulated and experimental results, the performance and limitations of the 4-switch FRM which is the cost effective drive compared to the 6-switch FRM drive are provided in more detail.

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