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 ...

To properly design a complex motion controller, you need to know what PID is all about. Proportional-integral-derivative, or PID, control is the most common type of controller used in industry.

The process controller’s job is to maintain the process variable at setpoint, regardless of whether the setpoint is constant or has just been changed. The controller contains the “control algorithm,” ...