Design of a new PID controller using predictive functional control optimization for chamber pressure in a coke furnace

• Published in: ISA transactions Vol. 67; pp. 208 - 214
• Main Author: Zhang, Jianming
• Format: Journal Article
• Language: English
• Published: United States Elsevier Ltd 01.03.2017
• Subjects: ensemble performance; PID control; Predictive functional control; time delay processes; ensemble performance; time delay processes; Predictive functional control; PID control
• ISSN: 0019-0578; 1879-2022
• DOI: 10.1016/j.isatra.2016.11.006

An improved proportional-integral-derivative (PID) controller based on predictive functional control (PFC) is proposed and tested on the chamber pressure in an industrial coke furnace. The proposed design is motivated by the fact that PID controllers for industrial processes with time delay may not achieve the desired control performance because of the unavoidable model/plant mismatches, while model predictive control (MPC) is suitable for such situations. In this paper, PID control and PFC algorithm are combined to form a new PID controller that has the basic characteristic of PFC algorithm and at the same time, the simple structure of traditional PID controller. The proposed controller was tested in terms of set-point tracking and disturbance rejection, where the obtained results showed that the proposed controller had the better ensemble performance compared with traditional PID controllers. •A novel PID controller optimized by predictive functional control (PFC) is proposed.•The design is tested on chamber pressure in the industrial coke furnace.•Improved closed-loop control performance is achieved for set-point tracking and disturbance rejection.