Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1996.07a
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- Pages.15-17
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- 1996
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.)
- Published : 1996.07.22
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.
Keywords