Control Engineering
Articles
Control Engineering April 2021 issue
Read the April 2021 digital edition to learn about IIoT for automation, smart manufacturing and smart factory acceleration, PID tuning and more.
Effects of COVID-19 on automation, controls, instrumentation
In video comments, Control Engineering content manager Mark T. Hoske briefly touches on short- and longer-term effects of COVID-19 on automation, controls, and instrumentation markets.
The basics of model-following control
Two proportional-integral-derivative (PID) controllers can be better than one. Model-following control may be the best choice if it's important to get the process variable to the setpoint without hunting or overshoot.
Understanding feedforward control
Feedforward controls applied to a process, with limited, measurable disturbances, can keep the process variable close to the setpoint.
Fixing PID, Part 3
PID: Proportional-integral-derivative controllers may be ubiquitous, but they’re not perfect. Consider how deadtime affects integral action.
Fixing PID, Part 2
Proportional-integral-derivative controllers may be ubiquitous, but they’re not perfect.
Fixing PID, Part 1
Proportional-integral-derivative controllers may be ubiquitous, but they’re not perfect.