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

The Korean Institute of Electrical Engineers (대한전기학회)
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Minimization of Cogging Torque in Permanent Magnet Motors by Stator Pole Shoe Pairing and Magnet Arc Design using Genetic Algorithm

유전자 알고리즘을 이용한 영구자석 모터의 고정자 잇날 페어링 및 자석 극호각 설계에 의한 코깅 토오크의 저감 설계

  • 엄재부 ((주)LG전자 DAC 연구소) ;
  • 황건용 (부산대 공대 기계설계공학부) ;
  • 황상문 (부산대 공대 기계공학부)
  • Published : 2002.01.01
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Abstract

Cogging torque is often a principal source of vibration and acoustic noise in high precision spindle motor applications. In this paper, cogging torque is analytically calculated using energy method to show that Fourier spectra of airgap permeance function and airgap MMF function are the most important design parameters to control cogging torque. To control these functions, stator pole shoe pairing and magnet arc design are proposed to minimize cogging torque. As for optimization technique, genetic algorithm is applied to handle trade-off effects of design parameters. Results show that the proposed method can reduce the cogging torque effectively.

Keywords

References

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