One-parameter tuning PID control of chemical processes

This paper presents a useful technology for the advanced stability control for the total plant. In particular, the unification of ´Control performance assessment´ and ´Con-troller design´ is discussed. The proposed scheme has a unique feature which allows PID parameters to be tuned by just one user-specified parameter. This methodology is based on a universal evaluation function, and the easy tuning system can be developed in which an entire plant can be highly stabilized, ultimately obtaining good control performance for a distillation process and a styrene furnace unit.