PID Controller

  • January 20, 2016
  • cyrus@timberbrookfamily.com

Using Average Absolute Error to Uncover Tuning Issues

Average Absolute Error (AAE) Provides an Intuitive Alternative to Variance and Simplifies the Assessment of Changes in PID Controller Performance.

Quite simply, things at a manufacturing facility can change

  • December 1, 2015
  • cyrus@timberbrookfamily.com

Using Mode Changes to Uncover Tuning Issues

Poor Controller Tuning. Operator interventions and Mode Changes are often viewed negatively. When a PID loop is switched out of automatic there can be a sense that the controller wasn’t allowed

  • November 23, 2015
  • cyrus@timberbrookfamily.com

Using the Oscillation Metric to Uncover Tuning Issues

There’s a wealth of information available in most every data historian. The data can be used to evaluate the performance of a plant’s regulatory control systems in general and to

  • October 30, 2015
  • cyrus@timberbrookfamily.com

Common Industrial Applications of PID Control with Filter

Other Questions. Sometimes controller design feels like a choice between the lesser of not two but three evils. P-Only Control is simple and provides a fast response, but the resulting Offset

  • October 14, 2015
  • cyrus@timberbrookfamily.com

Common Industrial Applications of PI Control

Studies show that when individuals are given a set of three options they are instinctively biased to prefer the middle one. When this finding is applied to purchasing behavior a

  • October 8, 2015
  • cyrus@timberbrookfamily.com

Common Industrial Applications of P-Only Control

Effective Disturbance Rejection “When your only tool is a hammer, every problem looks like a nail” – a concept attributed to Abraham Maslow. Such can be the situation with process control

  • September 29, 2015
  • cyrus@timberbrookfamily.com

What Is a Set Point Filter?

Names – like looks – can be deceiving. While jumbo shrimp are big relative to other shrimp there’s very little about them that could be considered gargantuan. So there should