The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
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An Analysis of Noise Characteristics According to the Excitation Method of SRM

SRM의 여자방식에 따른 소음특성 해석

  • 문재원 (진주산업대 산업자동화공학과) ;
  • 오석규 (진주산업대 산업자동화공학과) ;
  • 안진우 (경성대 전기전자컴퓨터공학부)
  • Published : 2000.09.01
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Abstract

SRM has been applied to many commercial applications that require economical advantages and high performance abilities. But it has some drawbacks such as acoustic noise due to the abrupt change of mmf level when commutation. The abrupt change of a phase excitation produces mechanical stresses and it results in torque ripple and noise. This paper deals with an analysis of vibration and noise in SRM drive. Several types of excitation method are taken into account. The 1-phase and 2-phase excitation technique of short-pitch winding 2-phase excitation technique of full-pitch winding are tested. The acoustic noise is reduced remarkably through the sequential phase excitation in the 2-phase excitation. It is because that the scheme reduces abrupt change of excitation level by distributed balanced excitation with free-wheeling during commutation.

Keywords

References

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