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Realization of PID controls by fuzzy control methods |
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| Authors: | M Mizumoto |
| Institution: | Division of Information and Computer Sciences, Osaka Electro-Communication University, Neyagawa, Osaka 572, Japan |
| Abstract: | This paper shows that PID controllers can be realized by fuzzy control methods of “product-sum-gravity method” and “simplified fuzzy reasoning method”. PID controllers, however, cannot be constructed by min-max-gravity method known as Mamdani's fuzzy reasoning method. Furthermore, extrapolative reasoning can be executed by the product-sum-gravity method and simplified fuzzy reasoning method by extending membership functions of antecedent parts of fuzzy rules. |
| Keywords: | Product-sum-gravity method Simplified fuzzy reasoning method Min-max-gravity method PID control Extrapolative reasoning |
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