Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Modified Microstep Drive of PM Step Motor

PM 스텝 모터의 개선된 마이크로 스텝 구동

  • Lee, Tae-Gyoo (Control System Lab. Dept. of Electrical Engineering, INHA Univ.) ;
  • Shin, Ki-Sang (Control System Lab. Dept. of Electrical Engineering, INHA Univ.) ;
  • Huh, Uk-Youl (Control System Lab. Dept. of Electrical Engineering, INHA Univ.)
  • 이태규 (인하대학교 전기공학과 제어 시스템 연구실) ;
  • 신기상 (인하대학교 전기공학과 제어 시스템 연구실) ;
  • 허욱열 (인하대학교 전기공학과 제어 시스템 연구실)
  • Published : 1996.07.22
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Abstract

In this paper, a modified microstep drive of PM step motor is presented. The open-loop drive of a step motor is attractive and widely accepted in applications of speed and position controls. However, the performance of the step motor is limited under the open-loop drive. The closed-loop control is advantages over the open-loop control not only in that step failure never occurs but that the motion is much quicker and smoother. However, a high resolution sensor is needed for detecting position and speed. The modified microstep drive is constructed as a microstep drive with speed feedback. The advantages of the proposed method is that the controller can be designed by a low resolution sensor and is simpler than other closed-loop controller. A concept of vector control is used for verifying the proposed scheme. Simulations show the performance of the proposed method and a comparison with a classic drive method.

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