FUZZY CONTROLLER, PLANT SYSTEM, AND FUZZY CONTROL METHOD

摘要

PPROBLEM TO BE SOLVED: To enhance control accuracy, and to shorten the adjustment period of a control rule in a plant system which performs fuzzy control on the basis of the control rule. PSOLUTION: A fuzzy controller 13 includes: an aggravation control rule space determination mechanism 7 for determining an aggravation control rule space in which there is possibility that control is aggravated from a control rule space; a control rule extraction mechanism 8 for creating one gene indicating a control rule to all the plants from the aggravation control rule space; an evaluation mechanism 4 for evaluating control results obtained by controlling each plant on the basis of the control rule narrowed down by the control rule extraction mechanism 8 by a predetermined evaluation function; and a genetic operation mechanism 10 for optimizing the gene created by the control rule extraction mechanism 8 by a genetic algorithm during control of each plant on the basis of the evaluation results of the evaluation mechanism 4. PCOPYRIGHT: (C)2009,JPO&INPIT