A PH complex control system built-in correction factor

Besides the pH deployment process´s non-linear, large hysteretic nature, the system´s requirement of real-time and accuracy, the traditional control methods can not get to the high quality control results. The fuzzy control does not rely on a mathematical model of the object. It is very difficult to eliminate the steady-state deviation from the root. Because PI control has a very good scavenging effect of the steady-state, therefore the system uses a built-correction factor of the Fuzzy-PI composite control strategy.