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Fuzzy control and defuzzification

✍ Scribed by A. Hussu

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
542 KB
Volume
5
Category
Article
ISSN
0957-4158

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✦ Synopsis

For two example systems, controlled by either a linear controller or one of five fuzzy controllers (with different defuzzification procedures), responses to step functions are presented in time and in frequency space to qualitatively judge and select the most appropriate defuzzification procedure. It can be concluded from the given responses that of the five defuzzification procedures considered interpolation gives the best results, when smoothness of the time responses and their frequency spectra is taken as a criterion. Interpolation also improves the robustness of the controller.

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