Fuzzy frequency response: Definition and analysis 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), Monte Castelo, Brazil

fYear

2010

fDate

18-23 July 2010

Firstpage

1

Lastpage

8

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 set theory; large-scale systems; transfer functions; Takagi-Sugeno fuzzy structure; complex dynamic systems; fuzzy dynamic model; fuzzy frequency response; phase Bode plots; transfer function; Analytical models; Boundary conditions; Dynamic scheduling; Frequency response; Nonlinear dynamical systems; Pragmatics; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems (FUZZ), 2010 IEEE International Conference on

Conference_Location

Barcelona

ISSN

1098-7584

Print_ISBN

978-1-4244-6919-2

Type

conf

DOI

10.1109/FUZZY.2010.5584631

Filename

5584631