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Published byDarion Billey Modified over 3 years ago

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Fuzzy Controller where i and j = 0~6, Ai and Bj are fuzzy number, and cj,i is real number. The graph of fuzzification and fuzzy rule table is shown in Fig. 4. (d) Construct the fuzzy system uf (s,ds) by using the singleton fuzzifier, product-inference rule, and central average defuzzifier method. Although there are total 49 fuzzy rules in Fig. 4 will be inferred, actually only 4 fuzzy rules can be effectively excited to generate a non-zero output. Therefore, the (16) can be replaced by the following expression:

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Fuzzy Controller Fig.2 The symmetrical triangular membership function of e and de, fuzzy rule table, fuzzy inference and fuzzification

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Fuzzy Controller PL PMPSZEPL PMPSZENSPM PL PMPSZENSNMPS PLPMPSZENSNMNLZE PMPSZENSNMNL NS PSZENSNMNL NM ZENSNMNL PLPMPSZENSNMNL e de uf Fuzzy rule table PL (positive large) ， PM (positive middle) ， PS (positive small) ， ZE (zero error) ， NS (negative small) ， NM (negative middle) ， NL (negative large) 。

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Fuzzy Controller 250 150500150 250 150500-50100 250 150500-50-15050 250150500-50-150-2500 150500-50-150-250 -50 500-50-150-250 -100 0-50-150-250 -150 3002001000-100-200-300 e de uf Rule table before adjusted

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II. Simulation FC in Matlab

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