A method for closed loop automatic tunin
β
Tor Steinar Schei
π
Article
π
1992
π
Elsevier Science
π
English
β 345 KB
A simple method for the automatic tuning of PID controllers in closed loop is proposed. A limit cycle is generated through a nonlinear feedback path from the process output to the controller reference signal. The frequency of this oscillation is above the crossover frequency and below the critical f