Journal of Electrical Engineering and Technology

The Korean Institute of Electrical Engineers (대한전기학회)
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Suppression of Shaft Voltage by Rotor and Magnet Shape Design of IPM-Type High Voltage Motor

  • Kim, Kyung-Tae (Dept. of Electrical Engineering, Ulsan University) ;
  • Cha, Sang-Hoon (Korea Marine Equipment Research Institute) ;
  • Hur, Jin (Dept. of Electrical Engineering, Ulsan University) ;
  • Shim, Jae-Sun (Dept. of Electrical Engineering, Kangwon National University) ;
  • Kim, Byeong-Woo (Dept. of Electrical Engineering, Ulsan University)
  • Received : 2013.05.27
  • Accepted : 2013.06.07
  • Published : 2013.07.01
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Abstract

In this paper, we propose a method for suppressing shaft voltage by modifying the shape of the rotor and the permanent magnets in interior permanent magnet-type-high-voltage motors. Shaft voltage, which is induced by parasitic components and the leakage flux in motor-driven systems, adversely affects their bearings. In order to minimize shaft voltage, we designed a magnet rearrangement and rotor re-structuring of the motor. The shaft voltage suppression effect of the designed model was confirmed experimentally and by comparative finite element analysis.

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References

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