Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Motion Synchronization Algorithm using Sinusoidal Characteristics for a Dual-cylinder Mold Oscillator

몰드 오실레이터 이중구조 실린더의 정현파 진동 특성을 이용한 위치동기화 알고리즘 개발

  • Kim, Seung Hun (Department of Electrical Engineering, POSTECH) ;
  • Choi, Doo Chul (Department of Electrical Engineering, POSTECH) ;
  • Kong, NamWoong (Technical Research Laboratories, POSCO) ;
  • Kim, Sang Woo (Department of Electrical Engineering and the Department of Creative IT Engineering, POSTECH)
  • 김승훈 (POSTECH 전자전기공학과) ;
  • 최두철 (POSTECH 전자전기공학과) ;
  • 공남웅 (POSCO 기술연구원) ;
  • 김상우 (POSTECH 전자전기공학과, 창의IT융합공학과)
  • Received : 2015.05.20
  • Accepted : 2015.06.23
  • Published : 2015.08.01
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Abstract

Improvement in the control strategy for continuous casting is a crucial requirement to enhance the slab's quality and to increase productivity. The mold oscillator adopts the dual cylinders due to its heavy weight, so the synchronized motion of two cylinders is an important aspect when precise control is needed. The conventional method uses the master-slave control applied to the valve input reference, but the synchronization performance should still be improved. This paper proposes a novel synchronization algorithm for dual cylinders used in a mold oscillator. The master-slave concept is applied to the target reference position, that is, the slave target reference position is controlled to match the slave cylinder's position with the master cylinder's position. In the simulation based on a Simulink model, the proposed algorithm shows a better synchronization performance in aspect of the mean of the absolute error and the peak synchronization error.

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References

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