대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 1996년도 하계학술대회 논문집 A
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- Pages.470-472
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- 1996
최소차원 부하토크 관측기를 이용한 유도전동기의 강인한 속도제어
Robust Speed Drive of Induction Motors using Least Order Load Torque Observer
- Seo, Young-Soo (Myong-Ji Univ.) ;
- Lim, Young-Bae (Chung- Nam Junior College.) ;
- Sung, Dae-Yong (Myong-Ji Univ.) ;
- Song, Ho-Bin (Myong-Ji Univ.) ;
- Kim, Jung-Gyun (Myong-Ji Univ.)
- 발행 : 1996.07.22
초록
In this paper, we proposed a new speed control algorithm based on the least-order observer theory. The proposed system using the new algorithm can estimate the instantaneous speed accurately even at low speed by using a load torgue observer estimating the torgue component of indirect-vector controlled induction motor. Thus the stable characteristics of speed control are possible at low speed even in the case of using low-resolution rotary encoder. Also, the system becomes robust against disturbance by feedforward control the load torque estimated automatically at the speed observer.
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