Download Fuzzy Control and Modeling: Analytical Foundations and by Hao Ying PDF

By Hao Ying

The rising, strong fuzzy keep an eye on paradigm has ended in the global good fortune of numerous advertisement items and real-world functions. Fuzzy regulate is phenomenally useful and reasonable because of its specific skill to complete projects with out realizing the mathematical version of the process, whether it truly is nonlinear, time various and complicated. however, in comparison with the normal keep an eye on know-how, such a lot fuzzy regulate functions are built in an advert hoc demeanour with little analytical knowing and with no rigorous method research and design.Fuzzy keep an eye on and Modeling is the one booklet that establishes the analytical foundations for fuzzy keep watch over and modeling in terms of the traditional linear and nonlinear theories of keep watch over and platforms. The insurance is up to date, entire, in-depth and rigorous. Numeric examples and purposes illustrate the application of the theoretical development.Important issues mentioned comprise: buildings of fuzzy controllers/models with admire to traditional fuzzy controllers/models research of fuzzy keep watch over and modeling on the subject of their classical counterpartsStability research of fuzzy structures and layout of fuzzy keep watch over systemsSufficient and invaluable stipulations on fuzzy platforms as common approximatorsReal-time fuzzy regulate structures for therapy of life-critical difficulties in biomedicineFuzzy regulate and Modeling is a self-contained, precious source for pros and scholars in assorted technical fields who aspire to analytically learn fuzzy keep an eye on and modeling.

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Extra info for Fuzzy Control and Modeling: Analytical Foundations and Applications (IEEE Press Series on Biomedical Engineering)

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CONVENTIONAL MODELING System modeling and system control are two closely related areas. In order to design a conventional controller for controlling a physical system, the mathematical model of the system is needed. A common form of the system model is differential equation for continuous-time systems or difference equation for discrete-time systems. Strictly speaking, all physical systems in existence are nonlinear. Unless physical insight and the laws ofphysics can be applied, establishing an accurate nonlinear model using measurement data and system identification methods is difficult in practice.

4. 10 An example showing how fuzzification works. 4. FUZZY RULES A fuzzy controller or model uses fuzzy rules, which are linguistic if-then statements involving fuzzy sets, fuzzy logic, and fuzzy inference. Fuzzy rules playa key role in representing expert control/modeling knowledge and experience and in linking the input variables of fuzzy controllers/models to output variable (or variables). Two major types of fuzzy rules exist, namely, Mamdani fuzzy rules and Takagi-Sugeno (TS, for short) fuzzy rules [202].

The corresponding fuzzy logic operators exist in fuzzy set theory. Fuzzy logic AND and OR operations are used in fuzzy controllers and models. Unlike the binary AND and OR operators whose operations are uniquely defined, their fuzzy counterparts are nonunique. Numerous fuzzy logic AND operators and OR operators have been proposed, some of them purely from the mathematics point of view. 3. L(x) 0 .. l(x) ~(x) o .. x -"------~--- o (c) .. 9 Examples of four commonly used input fuzzy sets in fuzzy control and modeling: (a) trapezoidal, (b) triangular, (c) Gaussian, and (d) bell-shaped.

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