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 ...

Servo controllers commonly use traditional cascaded configurations in which a velocity loop is nested within a position loop. This configuration originated when current and velocity controllers were ...

Plant engineers and technicians are frequently asked to tune the controller when a control loop’s process value has prolonged or significant excursions from the set point. But in many instances, no ...

The following paper was presented at this years Electric Power Industry Conference, Oct.15-16, hosted by University of Pittsburgh Swanson School of Engineering, the Energy GRID Institute and the ...

As government regulators demand ever-lower emissions from trucks and mobile equipment, and users demand better mileage, engineers continue to explore the nuances of diesel-engine combustion. One area ...