A new method for PID controller tuning based on process models for integrating and
unstable processes with time delay is proposed in this paper. The proposed method is an …

The IMC− PID tuning rules demonstrate good set-point tracking but sluggish disturbance
rejection, which becomes severe when a process has a small time-delay/time-constant ratio …

Relay feedback has attracted considerable research attention for more than a century but
there has been no recent summary of the many newly-developed tools and results now …

This work focused on a new developed and experimentally tested non-linear control
approach to control a double tube heat exchanger's output cold water temperature. The …

A systematic PI and PID tuning method is developed for integrating and unstable processes.
The method, based on a maximum peak-resonance specification, leads to simple tuning …

Since batch reactors are generally applied to produce a wide variety of specialty products,
there is a great deal of interest to enhance batch operation to achieve high quality and purity …

For open-loop stable processes, the IMC approach provides a very simple yet powerful
parametrization of all stabilizing controllers. The IMC factorization procedure gives valuable …

Batch reactors are widely used in the production of fine chemicals, polymers,
pharmaceuticals and other specialty products. For certain exothermic reactions, the transient …

A calculation method of PID controller tuning for the first-and the second-order open-loop
unstable process models with time delay is presented in this study. Optimum PID controller …

Fed-batch fermentation processes are commonly used in bioprocessing industry. A fed-
batch fermentation process often exhibits integrating/unstable type of dynamics with multiple …