Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Variation of electromagnetic noise of 3 phase induction motor between un-loaded and loaded running

3상 유도전동기의 무부하 및 부하 운전시 전자기 소음의 변화

  • 권병훈 (울산대학교 전기전자 시스템 공학부) ;
  • 안정렬 (울산대학교 전기전자 시스템 공학부) ;
  • 전태원 (울산대학교 전기전자 시스템 공학부)
  • Published : 2008.10.23
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Abstract

When a squirrel cage induction motor is loaded, the electromagnetic noise can increase depending on the load current. It is due to the air gap harmonic fluxes from the rotor current induced during loading. This unfavorable noise can be anticipated by calculating the radial force waves in the air gap, vibration mode shapes of them, and stator core natural frequencies of each mode. With the experimental tests with the different rotor slot numbers, the variation of electromagnetic noise is studied between on-loaded and loaded running.

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