Optimization control for the looper’s height on continuous pickling titanium plates and strips by microwave heating

Abstract

Optimal control for design of fuzzy logic controller for by tuning traditional PID parameters-based control strategy was proposed to control the looper s height on continuous pickling titanium plates and strips with an instability and random noise process. The parameters relations between fuzzy controller and PID controller are deeply analyzed. Then the whole output of the fuzzy controller which consists of two sub-controllers, the PI controller and the PD controller is designed using parameters of PID controller tuned by Ziegler-Nichols method. The fuzzy controller is compared with traditional PID by simulation and real engineering application. The results indicate that the dynamic control performances of the looper s height are much better by using fuzzy control strategy. The fuzzy controller is not only the designed simplify, but also the strong effectiveness and feasibility.