1. A
Power Point Presentation
On
Speed Control Of D.C Motor Based On Fuzzy Logic
Presented By :-
Amit Ranjan
Ravi Shankar

2. The purpose of this paper is to control the speed of DC
motor by using FLC with MATLAB applications.This
paper is a humble effort to implement an FLC using
for motor control. There are three parts to fuzzy
controller, the fuzzification of the inputs, the
defuzzification of the outputs, and the rule base. This
paper is about to introduce the new ability of
estimating speed and control the DC motor. By using
the controller, the speed can be tuned until it get
similar to the desired output that user need.

3. content :-
 What Is Fuzzy Logic ?
 Why Use Fuzzy Logic ?
When Not to Use Fuzzy Logic ?
What Can the Fuzzy Logic Toolbox Do ?
Dc Motor
Principle
Construction
Type Of dc motor

4. What is fuzzy logic ?
 Fuzzy logic is all about the relative importance of
precision.
 Fuzzy logic is a convenient way to map an input space
to an output space.

5. Mapping :-

6. Why use fuzzy logic ?
General observations about fuzzy logic:-
 Fuzzy logic is conceptually easy to understand.
 Fuzzy logic is flexible.
 Fuzzy logic is tolerant of imprecise data.
 Fuzzy logic can model nonlinear functions of
arbitrary complexity.
 Fuzzy logic can be built on top of the experience of
experts.
 Fuzzy logic is based on natural language.

7. When not to use fuzzy logic.
 Fuzzy logic is not a cure-all. When should you not
use fuzzy logic ? The safest statement is the first
one made in this introduction: fuzzy logic is a
convenient way to map an input space to an
output space. If you find it’s not convenient, try
something else.

8. What can the fuzzy logic toolbox
do ?
 The Fuzzy Logic Toolbox allows you to do several
things, but the most important thing it lets you do is
create and edit fuzzy inference systems. You can create
these systems using graphical tools or command-line
functions, or you can generate them automatically
using either clustering or adaptive neuro-fuzzy
techniques.

9. Methodology
Fuzzy logic controller
 Structure of fuzzy logic
 Preprocessing
 Fuzzification
 Rule base
 Defuzzification
 Postprocessing

11. Fuzzy logic toolbox
 FIS Editor
 Membership Function
 Rule Editor
 Rule viewer

12. Fuzzy logic toolbox:-

13.  Fuzzy logic controller are customizable.
 Low Cost.
 It Is Design Without Knowing The Exact
mathematical Model Of The Process.

14. It requires a lot of data.
 The estimators must be familiar with the historically
developed programs.
It is not use full for programs much larger or smaller
than the historical data.

15.  Principle & working of DC motor
Construction of DC motor
Types of DC motor

16. Principle & working of DC motor
 A D.C motor is an electric motor that runs on direct
current electricity.
 The electric motor uses an electrical energy to produce
a mechanical energy.

17. Construction of DC
motor

18. Types of DC motor
There are
two types of
DC motor :-
Brushless Brushed
DC motor DC motor

19. Brushed DC motor

21. CONCLUSION
Thus the fuzzy logic controller is sensitive to
variation of the reference speed attention.
It is also over come the disadvantage of the use
conventional control sensitiveness to inertia
variation and sensitiveness to variation of the speed
with drive system of dc motor.