A better understanding of closed-loop control, and how to tune it, can be found by looking at the individual parts of the PID equation and the effect of each on the controlled output By Bill Dehner ...

PID loops are a central component of modulating boiler control systems with applications ranging from basic steam header pressure control to cascading 3-element drum level control. A modern ...

The above discussion suggests the benefits of adding feed-forward terms to the control algorithm, but a second derivative term (D2) can also be added to the PID which results in a PID + D2 + feed ...

New ISA technical report distills thousands of pages of PID references for improving process performance. Even though controllers using the proportionalintegral-derivative (PID) algorithm have been ...

Embedded Newsletter for 07-30-2012 » Click here to view online I » Forward to a friend I » Sign up for an EE Times Newsletter Share this Newsletter: July 30, 2012 Tech Focus: Re-evaluating PID ...

Feedback control that adheres to this internal model principle has led to the development of harmonic cancellation algorithms and even more complex repetitive controllers. How are they useful?