An Experimental and Comparative Study of Fuzzy PID
Controller Structures
Advances in Soft Computing - Engineering Design and
Manufacturing, (21-30 June 1998)Abstract
Structures and design issues of fuzzy PID
(proportional-integral-derivative) controllers
(FLC-PIDs) are presented and evaluated in this paper.
Configuration and basic characteristic of several
structures of FLC-PID based on models proposed in the
literature (PD + I), (PI + D conventional), incremental
(PD + I), (PD + PI) are here reviewed and implemented.
FLC-PIDs are assessed on a horizontal balance process,
consisting of two propellers driven by two DC motors.
Such process offers control complexities and can become
unstable by using classical controllers. Experimental
results, robustness and performance of FLC-PIDs are
illustrated and discussed.