Modeling and Parameter Estimation of Linear Motor Positioning for Precision Positioning Control

정밀위치 제어를 위한 리니어모터 위치결정기구의 모형화 및 매개변수 추정

  • Jung, I.K. (School of Electrical and Electronics Engineering, Ajou Univ.) ;
  • Yang, S.S. (School of Electrical and Electronics Engineering, Ajou Univ.)
  • 정일균 (아주대학교 전기전자공학부) ;
  • 양상식 (아주대학교 전기전자공학부)
  • Published : 1997.07.21

Abstract

In linear motor positioning systems, nonlinearitys such as friction and cogging exist. These inner system with compliance may cause the steady state error and oscillation. So it is necessary to consider these elements for precision positioning control. In this paper, a nonlinear model of a linear motor positioning system including the friction, cogging and compliance is proposed. The parameters of the proposed model are identified by recursive least-squares method. The validity of the proposed model is confirmed by computer simulation.

Keywords