Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)

The Korean Society of Mechanical Engineers (대한기계학회)
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A nonlinear PID control of winding tension using contact roll

접압롤을 이용한 권취장력의 비선형 PID 제어

  • Shin, K.H (Dept.of Mechanical Design and Production Engineering, Kunkuk University) ;
  • Kim, K.T (Dept.of Mechanical Design and Production Engineering, Graduate School of Kunkuk University) ;
  • Cheon, S.M (Dept.of Mechanical Design and Production Engineering, Graduate School of Kunkuk University)
  • 신기현 (건국대학교 기계설계학과) ;
  • 김규태 (건국대학교 대학원 기계설계학과) ;
  • 천성민 (건국대학교 대학원 기계설계학과)
  • Published : 1997.12.01
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Abstract

In a web winding process, the contact roll plays many important roles including air-entrainment control and WIT(Wound In Tension) regulation. The behavior of contact roll significantly affects the winding tension characteristics specifically at the time of contact when the speeds of contact roll and the winding roll are not synchronized. A mathematical model for the web, the winding roll, and the contact roll is derived. By using the model derived, a nonlinear PID(NPID) controller is designed to control the winding tension at the time of contact and separation between the contact roll and the winding roll. Computer simulation study showed that the performance of the winding system with the NPID controller significantly improved compared with that of a system with PID controller.

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