A new flux-barrier design of torque ripple reduction in saliency-based sensorless drive IPM motors for general industrial applications

  • Kano Y
  • Terahai T
  • Kosaka T
 et al. 
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This paper proposes a new flux-barrier design to reduce the torque ripple of the concentrated-winding interior permanent magnet (IPM) motor under saliency-based sensorless drive. It is based on the combinations of the V-shape-magnet and the circular flux-barrier at the rotor-yoke in the center of the N-pole and S-pole. It is applied to 45 Nm-5.5 kW industrial drive IPM motor to fulfill the torque ripple requirement with a large operating region under the sensorless drive. The design result is validated by FEA, confirming the expected performance.

Author-supplied keywords

  • General industrial applications
  • Interior permanent magnet motor
  • Saliency-based sensorless drive
  • Torque ripple reduction

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  • Yoshiaki Kano

  • Takafumi Terahai

  • Takashi Kosaka

  • Nobuyuki Matsui

  • Toshihito Nakanishi

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