WIRELESS SPEED CONTROL OF DC MOTOR THROUGH RF REMOTE

WIRELESS SPEED CONTROL OF DC MOTOR THROUGH RF REMOTE

1. “DESIGN OF A HYBRID PID PLUS FUZZY CONTROLLER FOR SPEED CONTROL OF INDUCTION MOTORS” Under the guidance of P.PRANAY KUMAR M.E. Assistant Professor By K.BHAVANI (13UE1A0209) K.AKHILA (13UE1A0204) S.HEMALATHA (13UE1AO215) A.MOUNIKA (13UE1A0223)

2. ABSRACT In this project we are controlling the speed of induction motor by using PID +FUZZY controller. The FLC is connected to the PID controller for enhancing performance of induction motor. The FLC is developed based on the output of the PID controller, and the output of the FLC is the torque command of the induction motor.

3. INDUCTION MOTOR AND PRINCIPLE An induction motor (IM) is a type of asynchronous AC motor Induction motor general principle Types of rotors in induction motor

4. SPEED CONTROL MEHODS OF INDUCTION MOTOR FROM STATOR SIDE: Frequency control method Changing the number of stator poles Voltage control method FROM ROTOR SIDE: By injecting the EMF in rotor circuit Cascade control method

5. Zieglers-Nechols Method The most well known tuning methods are those developed by Ziegler and Nichols. They have had a major influence on the practice of PID control for more than half a century. The methods are based on characterization of process dynamics by a few parameters and simple equations for the controller parameters.

6. SIMULATION DIAGRAM

7. Main block diagram

8. PID CONTROLLER “PID” is an acronym for “proportional, integral, and derivative.” A PID controller is a controller that includes elements with those three functions.

9. THE PROPOSED HYBRID PID PLUS FUZZY CONTROL: First, we use a fixed step input and a linear proportional speed controller. The proportional gain of the speed controller is increased until the DFOIM reaches its stability limit.

10. FUZZY CONTROLLER A fuzzy control system based on fuzzy logic-A mathematical system that analyzes analog input values in terms of logical variables that takes on continuous values between 0 to 1. Membership function is a curve that defines how each point in the input space is mapped to a membership values between 0 to 1.

11. FUZZY RULES

12. WAVE FORMS &TABULAR FORM OF FUZZY CONTROLLER

13. MATLAB SIMULATION OF PI

14. SIMULATION OF FUZZY

15. SIMULATION RESULTS OF PID + FUZZY

16. ADVANTAGES and DISADVANTAGES ADVANTAGES: It gives accurate values. Better control action. It gives hundred percent output result due no errors. DISADVANTAGES: It is not applicable for high speed motors.

17. CONCLUSION In this project a hybrid modified Z-N PID+FLC based speed control of a induction motor has been presented PID and FUZZY can improve the stability, transient response and load disturbance rejection of speed control of a induction motor