Adjustment method null of the consequent section fuzzy variable in the fuzzy control

摘要

PURPOSE:To obtain an optimum adjusted result by selecting a consequent part variable among M kinds of fuzzy variables when the consequent part variable constituting a control rule consequent part proposition consisting of an antecedent part proposition and a consequent part proposition adopts one of M kinds of fuzzy variables. CONSTITUTION:When it is supposed that the operation value of an expert when a group of measurement values are provided as A1 to An is U0, M kinds of DELTAL values are obtained from an equation DELTALi=omega(U0-Upj)2 (provided that j = 1 to M). Hereinafter, the M kinds of DELTAL values for the final measurement values (A1 to An)N are found out and the sum of N corresponding values for each DELTAL in the M kinds is defined as L. The M kinds of obtained L values are mutually compared to select the minimum value and a fuzzy variable corresponding to the minimum value is selected from respective fuzzy variables as the consequent part fuzzy variable for the control rule. Thus, the consequent part fuzzy variable for the control rule can be objectively adjusted by using the operation value of the expert operator.