Title :
Automatic tuning of commercial PID controllers for single-loop and multiloop applications
Author :
Gawthrop, Peter J. ; Nomikos, Panos E.
Author_Institution :
Dept. of Mech. Eng., Glasgow Univ., UK
Abstract :
Certain continuous-time self-tuning algorithms are shown to be capable of generating tuning parameters for commercial proportional-integral-derivative (PID) controllers. They are also shown to be capable of generating a feedforward signal that decouples the disturbance from the interaction from adjacent loops in a multivariable situation. The approach is verified using a standard Atari personal computer supervising Eurotherm 820 PID controllers. Two systems are used to test the method: a laboratory water tank system under level control and an industrial multizone plastics extruder under temperature control.<>
Keywords :
controllers; level control; self-adjusting systems; temperature control; three-term control; Eurotherm 820; PID controllers; feedforward signal; level control; multiloop control; self-tuning; single loop control; temperature control; Automatic control; Automatic generation control; Laboratories; Microcomputers; Pi control; Proportional control; Signal generators; System testing; Three-term control; Tuning;
Journal_Title :
Control Systems Magazine, IEEE
