Tuning of Setpoint Weighted PI Controller for the Concentration Control in CSTR with Non-Ideal Mixing

Abstract

PID controllers are still the industry standard in control literature, despite considerable advancements in sophisticated process control systems like sliding mode control, internal model control, and model predictive control (MPC).The following are the main advantages of PID controllers over sophisticated control techniques. This means that it: (i) best-in-class and reliable performance for a range of processes; (ii) allows online/offline tweaking and retuning depending on the process under control's performance requirements. Real-time chemical process loops, such as those in continuous stirred tank reactors (CSTR), biochemical reactors, spherical tank systems, and conical tank systems, are typically nonlinear in nature.