Defuzzification with Constraints
We look at the problem of defuzzification in situations where in addition to the usual fuzzy output of the controller there exists some ancillary restriction on the allowable defuzzified values. We provide two basic approaches to address this problem. In the first approach we enforce the restriction by selecting the defuzzified value through a random experiment in which the only values which have nonzero probabilities are in the allowable region, this method makes use of a nonmonotonic conjunction operator. In the second approach we convert the problem to one of constraint optimization.
KeywordsMembership Function Fuzzy Logic Controller Fuzzy Subset Nonlinear Programming Problem Output Space
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