Self-tuning temperature control of a polymerizing reactor

PID control schemes have been widely applied to real control systems, and much research has been carried out on the tuning of PID parameters. Several self-tuning and auto-tuning techniques have been reported for PID control systems with unknown parameters. In this paper, a self-tuning PID control scheme is proposed based on the relationship between the PID control law and the generalized minimum variance control law. Furthermore, it is applied to the temperature control of a polymerizing reactor, and the results are discussed.