DESIGN A SPEED CONTROL OF DC MOTOR USING FUZZY LOGIC AND IMPLEMENT USING ATMEL IDS 6.

[seminar class]

PRESENTED BY:
N.Naveen kumar
R.Venkata krishna
V.D.Ragadeepthi
P.S.Ranjit kumar

---

[attachment=11723]
OBJECTIVE
 To implement speed control of a separately excited dc motor using fuzzy logic controller based on MATLAB and compare the response with P, PI and PID Controller.
Types of controllers used
 Proportional Controller
 Proportional and integral Controller
 Proportional Integral and Derivative Controller
 Fuzzy Logic Controller
Controller Specifications
Proportional Gain Kp = 5
Integral gain ki = 0.5
Derivative Gain Kd= 0.8
Advantages of FLC
 Quicker response
 Reliable
 More accurate than P. PI, PID Controllers
 Designed through knowledge of experience
 Able to simplify complex systems
FLC DESCRIPTION AND DESIGN
 The goal of FLC design is to minimize speed error.
 FLC design in MATLAB is based on mamdani fuzzy type.
FLC Design
The details of the designed controller are,
 Two Inputs: Error and Change of Error
 One Output: Change of Alfa (Duty cycle)
 And Method: minimum
 Or Method: maximum
 Implication Method: minimum
 Aggregation Method: maximum
 Defuzzification Method: Center of Gravity
 The triangular and trapezoidal membership functions are used to subdivide the input and output universes and to define the degree of membership.
 The speed control of DC motor through P, PI, PID controllers was studied and rule base for fuzzy controller is formed.