This white paper offers a critique of the state of Advanced Process Control (APC)
using Model Predictive Control (MPC) technology, reviewing the developments over
last 25 years since the debut of Dynamic Matrix Control in early 1980 and also the
state of technology, old and new available now. This review includes what is described
herein as “fault lines” in APC that affect quality of control performance and limit
the potential for improvements. For each of the fault lines, better designed solutions
are proposed that are not tradeoffs involving a gain with a loss.