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

The Korean Institute of Electrical Engineers (대한전기학회)
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Analysis of the Magnetic Noise for Large Power Induction Motors at Loading Operation

대용량 유도전동기의 부하 운전 시 자기 소음 특성 해석

  • 권병훈 (현대중공업 전기전자시스템사업부) ;
  • 전태원 (울산대 전기전자정보시스템공학부) ;
  • 이홍희 (울산대 전기전자정보시스템공학부) ;
  • 김흥근 (경북대 전자전기공학부)
  • Published : 2009.03.01
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Abstract

When a squirrel cage induction motor is loaded, the magnetic noise can increase depending on the load current. It is due to the variation of air gap harmonic fluxes from the rotor current induced by loading. This unfavorable noise can be anticipated by analysing the radial force waves in the air gap, the mode shapes of them, and stator core natural frequencies at each mode. With the experimental tests with the different rotor slot numbers, the variation of magnetic noise depending on the load current is studied and the method to reduce the magnetic noise is suggested with the newly developed magnetic noise analysis program.

Keywords

References

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