Although some control problems can potentially be resolved through controller tuning, poor control loop performance can have several other causes requiring different solutions.

Closed-loop control troubleshooting By Jacques Smuts, PhD, PE Automation Basics Summary By Jacques Smuts, PhD, PE Every plant in the process industry most likely has several control loops that do not ...

Only through proper troubleshooting and then solving the underlying problems can control loop performance be improved. Process design certainly plays a role in control loop performance, but ...

The Control Loop Don Morgan Tuning a PID controller is pretty straightforward, once you know how to start and what steps to follow. In this series on motion control, we have already discussed ...

By Jim Ford, PhD Just over a decade ago, an article titled, "Advanced Control Strategies Move into the Field" (Control, October 2008), highlighted three evolving trends in the process control world ...

A common example of a self-regulating loop is a flow control which varies flow through a pipe via variable speed control on a pump or a position-controlled valve. In this example, the flow can be ...

The non-invasive stability assessment is a method that uses an output impedance measurement to accurately determine stability without access to the control loop. The non-invasive stability assessment, ...

Closing the current loop Closing the current loop of a totem-pole bridgeless PFC is not as straightforward as in a traditional PFC; it may also vary from controller to controller. This power tip can ...