An interesting case of over-tuning is when the process variable “porpoises” (Note 1 ) on its way to setpoint following…
In contrast to the first tuning technique presented by Ziegler and Nichols in their landmark 1942 paper where the process…
Closed-loop refers to the operation of a control system with the controlling device in “automatic” mode, where the flow of…
Heuristic PID Tuning Method In contrast to quantitative tuning procedures where definite numerical values for P, I, and D controller…
A quantitative PID tuning procedure is a step-by-step approach leading directly to a set of numerical values to be used…
We know the benefits of robust PID control Tuning. Increased productivity, decreased equipment strain, and increased process safety are some…
When we speak of a controller’s gain, we refer to the aggressiveness of its proportional control action: the ratio of…
A classic “textbook” example of a runaway process is an inverted pendulum: a vertical stick balanced on its end by…
A good example of an integrating process is liquid level control, where either the flow rate of liquid into or…
If a liquid flow-control valve is opened in a step-change fashion, flow through the pipe tends to self-stabilize at a…
