Adaptive Rejection of Eccentricity Tension Disturbances in Web Transport Systems

This paper presents adaptive algorithms to compensate roll eccentricity perturbations in web transport systems. Roll eccentricity creates tension disturbances whose frequencies may be slowly varying due to the change of radius of the roll. The magnitude and phase of these perturbations are estimated through an adaptive algorithm that cancels the effect of these perturbations. The ability of the algorithm to reject eccentricity perturbations with slowly varying frequencies is shown through simulations on the physical model, as well as experimental results.