The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Mitigation Method of Shaft Voltage Based on the Variation of Parasitic Capacitance

기생 커패시턴스 변화 기반의 축 전압 저감 방법

  • Im, Jun-Hyuk (Dept. of Electrical Engineering, Incheon National University) ;
  • Park, Jun-Kyu (Dept. of Electrical Engineering, Incheon National University) ;
  • Lee, Seung-Tae (Dept. of Electrical Engineering, Incheon National University) ;
  • Jeong, Chae-Lim (Dept. of Electrical Engineering, Incheon National University) ;
  • Hur, Jin (Dept. of Electrical Engineering, Incheon National University)
  • Received : 2017.11.09
  • Accepted : 2018.03.26
  • Published : 2018.04.01
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Abstract

This study proposes the mitigation method of shaft voltage by varying the parasitic capacitance. First, the shaft voltage explained. Second, the parasitic capacitances causing shaft voltage are analyzed respect to geometry of motor and windings. Then, the equivalent circuit is established to obtain the shaft voltage and output torque characteristic and develope appropriate motor structure. Finally, simulation and experiment are conducted to verify that modified motor suppress the shaft voltage. This novel model does not require additional hardware.

Keywords

References

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