Implementation of PID cascade control in fiber drying

Convenitional drying method is time consumable and less in precision.In order to enhance the stoving efficiency and reduce the system' s nonlinear hysteresis interference factors,a stoving method based on cascade control system according to the textile fiber drying process characteristics is put forward.Comparisons between the conventional PID and cascade control PID by Simulink are made.The experiment results show that cascade control has a large increase in response time,less overshoot,and other factors compared with single loop PID.Optimization control and improve ment of the testing efficiency and accuracy are realized.