Title :
Fuzzy Frequency Response for Complex Dynamic Systems
Author :
Ferreira, Carlos Cesar Teixeira ; De Oliveira Serra, Ginalber Luiz
Author_Institution :
Dept. of Electroelectronic, Fed. Inst. of Educ., Sci. & Technol. (IFMA), São Luís, Brazil
Abstract :
Fuzzy Frequency Response: Definition and Analysis for Complex Dynamic Systems is proposed in this paper. In terms of transfer function, the complex dynamic system is partitioned into several linear sub-models and it is organized into Takagi-Sugeno (TS) fuzzy structure. The main contribution of this approach is demonstrated, from the proposal of a Theorem, that fuzzy frequency response is a boundary in the magnitude and phase Bode plots. Low and high frequency analysis of fuzzy dynamic model is obtained by varying the frequency ω from zero to infinity.
Keywords :
frequency response; fuzzy control; fuzzy set theory; large-scale systems; transfer functions; TS fuzzy structure; Takagi-Sugeno fuzzy structure; complex dynamic systems; fuzzy dynamic model; fuzzy frequency response; high frequency analysis; linear submodels; low frequency analysis; phase Bode plots; transfer function; Analytical models; Control systems; Frequency response; Nonlinear dynamical systems; Pragmatics; Steady-state; Transfer functions;
Conference_Titel :
Intelligent Control (ISIC), 2010 IEEE International Symposium on
Conference_Location :
Yokohama
Print_ISBN :
978-1-4244-5360-3
Electronic_ISBN :
2158-9860
DOI :
10.1109/ISIC.2010.5612922
