Title: The Construction and Control Design Application of a Novel Fuzzy Logic System without Any Rule
Abstract:Fuzzy logic system is a system with input and output functions.The knowledge base of the fuzzy logic system constructed in this paper does not store fuzzy rules in the form ofIf-then,but store fuzzy l...Fuzzy logic system is a system with input and output functions.The knowledge base of the fuzzy logic system constructed in this paper does not store fuzzy rules in the form ofIf-then,but store fuzzy language values about input and output variables.The language values are integrated by the partition of unity which is subordinate to the universe of language values,and then some fuzzy implication relations about input and output variables are synthesized.Firstly,they are fuzzified by point fuzzification when a set of data enter into the input terminal of the fuzzy logic system,which activates the fuzzy implication relations.Secondly,the fuzzy outputs are obtained through fuzzy reasoning machine and the suitable fuzzy operator.Finally,the final output values are obtained from defuzzification.Compared with the usual fuzzy logic system,the main advantage of the fuzzy logic system in this paper is that the output not only is presented as a linear combination of the basis functions,but also of which the number of combination coefficients is the same as the number of input variables.Thus the fuzzy logic system contributes to solve the dimension disasterproblem in fuzzy control theory.In the end,for a class of nonlinear uncertain systems,this new fuzzy logic system is adopted to design adaptive tracking controller,and the simulation shows the validity of the method in this paper.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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