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Chapter 10 FUZZY CONTROL Chi-Yuan Yeh.

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Presentation on theme: "Chapter 10 FUZZY CONTROL Chi-Yuan Yeh."— Presentation transcript:

1 Chapter 10 FUZZY CONTROL Chi-Yuan Yeh

2 Fuzzy Logic Controller

3 Inference

4 Inference

5 Inference

6 Inference

7 Defuzzification Mean of Maximum Method (MOM)

8 Defuzzification Center of Area Method (COA)

9 Defuzzification Bisector of Area (BOA)

10 Lookup Table The lookup table can be constructed after making the FLC and identifying the relationships between the input and output variables.

11 Discretization of universe of discourse

12 Normalization of universe of discourse

13 Fuzzy partition of input and output spaces

14

15 A fuzzy partition in 2-dimension input space

16 A fuzzy partition having three rules

17 Design Procedure of Fuzzy Logic Controller
Determination of state variables and control variables Determination of inference method Determination of fuzzification method Discretization and normalization of state variable space Partition of variable space Determination of the shapes of fuzzy sets Construction of fuzzy rule base Determination of defuzzification strategy Test and tuning Construction of lookup table

18 Application Example of FLC Design
Determination of state variables and control variables Determination of inference method

19 Application Example of FLC Design
Determination of fuzzification method Discretization and normalization of state variable space

20 Application Example of FLC Design

21 Application Example of FLC Design
Partition of variable space Determination of the shapes of fuzzy sets

22 Application Example of FLC Design

23 Application Example of FLC Design

24 Application Example of FLC Design
Construction of fuzzy rule base

25 Application Example of FLC Design

26 Application Example of FLC Design
Determination of defuzzification strategy Test and tuning

27 Application Example of FLC Design
Construction of lookup table

28 Thanks for your attention!


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