Modelling and H∞ low order control of web handling systems with a pendulum dancer

Abstract The plant considered in this paper is an unwinding - winding system with pendulum dancer mechanism for elastic webs. First, a non linear mathematical model of the web process line is presented. A state space model is deduced which helps in the synthesis of the H ∞ controllers around the set points given by the reference signals. Industrials systems typically use decentralized PI controllers. In this paper, performances of low order H ∞ controllers for such systems are analyzed.

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