Re-winder tension control based on fuzzy adaptive PID algorithm

With the characteristics of non-linearity, large time delay, and strong disturbance, the web tension control is the main difficulty of the re-winder electrical control system. The conventional PID algorithm can not achieve good performance index when the re-winder is working under acceleration or deceleration. The new algorithm based on fuzzy control adaptive PID algorithm could solve this problem, this algorithm can be easily realized by programmable logic controller (PLC) as well. In this way, the PID parameters can be adjusted online by using fuzzy logic speculation. The result shows that the new method brings better dynamic performance to the system as well as higher stability and stronger robustness.