Predictive Pid Control

Model predictive control has proved its effectiveness in many industrial applications. Predictive algorithms are available in various commercial control packages but their implementation costs could be considerable. Control of industrial processes is often realized using small industrial controllers that offer only simple control structures, like PID control loop. The aim of the paper is to derive the conditions for the equivalence of the generalized predictive control (GPC) and the PID control implemented on simple programmable logical controller. The performances of the GPC and PID control schemes are shown to be identical by simulation and an application of the predictive PID to a laboratory plant is presented.