Particleboard hotpress position servo-control using fuzzy self-tuning method

According to some phenomena such as non-linear characteristic, the special process requirements of steady control without overshoot, and base on fuzzy control, self-tuning control and PID control theory, we adopt the fuzz self-tuning PID strategy to control the slab thickness. The method on the PID parameters by fuzzy optimization implement online self-tuning, which can consummate the performances of PID controller and improve control precision and stabilization of the electro-hydraulic position servo system. It achieves the control characteristics of hotpress technological requirements. Furthermore, the simulation results also verify that the fuzzy self-tuning control all can get the non-overshoot, fast and stable response in the two different sets of PID initial parameters circumstances. The accuracy and stability of hotpress position servo control were raised obviously. So, the method is feasible and effective. It has an important significance of the basic theory for the further realization of flatpressing multi-cylinder interacting control.