Fuzzy Tuning PID Control of Strip Rolling Mill Hydraulic APC System
نویسندگان
چکیده
Hydraulic Automatic Position Control (APC) is a very important part of rolling mill for magnesium plate rolling. The control effect of automatic position control system influences the quality of the rolled product directly. APC system is an essentially nonlinear, time delay, time-varying, large inertia, multivariable and coupling complex system, which increase the designing difficulty of control system. Based on the mathematical model of the automatic position control system, a simulation platform of rolling mill is set up, and a fuzzy tuning PID controller is designed to realize position control for the hydraulic system. The control effect of the proposed fuzzy tuning PID controller is compared with that of a general PID controller whose parameters was adjusted by Ziegler-Nichols method. Simulation results show that the fuzzy tuning PID controller can give satisfactory control effect.
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