Tension Control Using On-Line Compensation of Friction Loss for Continuous Strip Processing Line

연속 공정 라인의 실시간 마찰손 보상을 통한 장력 제어 특성 개선

This paper proposes a tension control to compensate friction loss using on-line friction torque observer for a continuous strip processing line. Friction loss of roller results in significant deviation of strip tension. accordingly it has an influence on the operation of other adjacent rolls. To avoid tension variation of the strip, a friction torque observer is designed in adjacent roll, which operates in speed control mode. The experimental results show improvement of tension control performance by the proposed friction compensation method.