Control of processes with an integrator and long dead-time: The smith predictor vs. virtual sensor

In this paper, a Smith predictor control scheme is compared with a solution on the basis of a simple PI controller with a virtual sensor. Virtual sensor eliminates the technology-related dead-time and makes the control of dead-time processes possible without high development costs. The effectiveness of the proposed scheme will be demonstrated by simulations of real process with an integrator and long dead-time.