Single-loop control (i.e., a control loop with one input and one output) as implemented in various versions of the proportional, integral, derivative control algorithm in modern distributed control ...

APC paradigm now more affordable, agile, scalable, and reliable. By Allan Kern, PE. In this article, as in industry, advanced process control (APC) refers primarily to multi-variable ...

There are various types of electrohydraulic valves which can be applied in many different ways. Common variations include proportional and on/off versions and in closed-loop or open-loop control ...

It is estimated that 40% to 60% of the ac motor applications would benefit from some form of closed-loop, smart speed control. Closed-loop control allows single-phase ac motors to close the gap in ...

Indeed, for a second order system with single-loop control, phase margin is directly related to transient response and a phase margin of 52° results in closed loop-peaking factor Q o of unity ...