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

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Thickness Control of Tandem Cold Mills Using Preview and $H_{\infty}$ Control Techniques

예견 및 $H_{\infty}$ 제어기법에 의한 연속 냉간 압연시스템의 두께 제어

  • Kim, Sung-Su (Dept.of Mechatronics Engineering, Changwon National University) ;
  • Kim, Jong-Shik (Mechanical Technology Research Center, Dept.of Mechanical Engineering, Busan National University)
  • 김승수 (창원대학교 메카트로닉스 공학부) ;
  • 김종식 (부산대학교 기계공학부, 기계기술연구소)
  • Published : 2000.07.01
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Abstract

A robust controller to attenuate the various disturbances of tandem cold mills (TCM) is synthesized by measurement-feedback $H_{\infty}$ control techniques which can reflect the input direction of disturbances and the knowledge of entry thickness variation (disturbance) is synthesized by discrete-time measurement-feedback $H_{\infty}$ control theory. It is demonstrated that the $H_{\infty}$ preview control gain can be easily obtained by the seperation principle of the control and estimation problems in $H_{\infty}$ control. Finally the effectiveness of the proposed control method for TCM is evaluated by the computer simulation and compared to the other control methods which have been previously studied.

Keywords

References

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