Fuzzy-PI control system for speeding of paper cutting machine Based on PLC

It is very difficult to accurately control the speed of paper roller and sword roller of the paper cutting machine, and the proportions of two paces control have greater randomness. Alterable fuzzy-PI control arithmetic is put forward based on PLC. The alterable fuzzy controller and the PI adjustor are realized by PLC. This system has solved the problem that grain flow equilibrium, not stably does not kind. The practical results show that this system can restrain the effect of time relaying effectively and good stability and strong robustness.