Robust H/sub /spl infin// control of web winding system with periodic tension disturbance

This paper presents the design of a mixed-sensitivity H/sub /spl infin// controller, the aim is to obtain good reference tracking properties as well as to properly reject sinusoidal disturbance for suppressing vibrations. The proposed approach is based on the frequency weighting functions which give an extended model to design a stabilizing H/sub /spl infin// controller. The method is applied to a 3-motor web winding system to compensate the web tension disturbance caused by the sinusoidal vibration on winder.