Studdy for Force Ripple Suppression of the Iron Core Linear Motors

철심형 리니어모터의 추력 리플 억제에 관한 연구

  • 송창규 (한국기계연구원 지능형정밀기계연구부) ;
  • 김정식 (충남대 대학원 기계공학부) ;
  • 김경호 (한국과학기술원 기계공학과) ;
  • 박천홍 (한국기계연구원 지능형정밀기계연구부)
  • Published : 2004.10.01

Abstract

Higher productivity requires high-speed motion of machine tool axes. The iron core linear DC motor (LDM) is widely accepted as a viable candidate for high-speed machine tool feed unit. LDM, however, has two inherent disturbance force components, namely cogging and thrust force ripple. These disturbance forces directly affect the tracking accuracy of the feeding system and must be eliminated or reduced. In order to reduce motor ripple, this research adapted the feedforward compensation method and neural network control. Experiments carried out with the linear motor test setup show that these control methods are effective in reducing motor ripple.

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