Feedforward Control with Dynamic Compensation
As we have discussed, feedforward control is a way to improve the stability of a feedback control system in the
Control Systems
We have the largest collection of Industrial Control Systems articles like industrial automation, Distributed Control Systems (DCS).
Proportioning Feedforward action
Feedforward control works by directly modulating the manipulated variable in a control system according to changes sensed in the load(s).
Feedforward Control Principle
Let us consider a liquid level control system on an open tank, where three different fluid ingredients (shown in the
What is Feedforward Control ?
“Feedforward” is a rather under-used control strategy capable of managing a great many types of process problems. It is based
Relation Control System
A control strategy similar to ratio control is relation control. This is similar to ratio control in that a “wild”
What is Ratio Control ?
Most people reading this article have likely had the experience of adjusting water temperature using two hand valves as they
Ratio Controller Example
An example of ratio control at work is in a process whereby hydrocarbon gases (usually methane) are converted into hydrogen
Cascade Control
A simple control system drawn in block diagram form looks like this: Information from the measuring device (e.g. transmitter) goes
Supervisory Control
In a manually-controlled process, a human operator directly actuates some form of final control element (usually a valve) to influence
Tuning a Temperature Process Control Loop
Tuning a Temperature Process Control Loop Ziegler-Nichols open-loop tuning procedure This next simulated process is a temperature control process. Performing