Jim Ford

Advanced regulatory versus model-predictive control

Some currently practicing control engineers may be regarding the features and capabilities of advanced regulatory control (ARC) as inferior to model-predictive control (MPC)—but are they really?

Model-based control, dead times, lag times

Distillation columns and precise composition control: Composition control is critical for economical operation of distillation columns. Model-based control techniques prevent purity problems associated with dead and lag times.

Distillation columns: Product composition control – process identification models

This technique can help reconnect information and actions that are separated by time.

Tricks of the Trade: Level Control

Sometimes the most important control objective of a level controller is not to control the level.