DC Motor Speed Control using Microcontroller PIC-16F877A - Free Final Year Project's

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Mar 15, 2015

DC Motor Speed Control using Microcontroller PIC-16F877A

Micro-controller is a very widely used electronic component and today we are showing your another example of it. Today's' project topic is "DC motor speed control using Microcontroller PIC16F877A" and we are sharing full project report of it. This is a very good project work for final year Electronics and Electrical students. This project is mainly focus on DC motor speed control system by using microcontroller PIC 16F877A. It is a closed-loop real time control system, where optical encoder (built during this project) is coupled to the motor shaft to produce the feedback speed signal to controller. Pulse Width Modulation (PWM) technique is employed where its signal is generated in microcontroller. Micro-controller acts as proportional (P) controller with Kp =1 in this study. You can also Subscribe to FINAL YEAR PROJECT'S by Email for more such projects and seminar.

Basic block diagram for DC Motor speed control using Microcontroller PIC-16F877A

The PWM signal are going to be send to motor driver to vary the voltage provide to motor to take care of at constant speed. A program in Visual Basic 6 is developed to produce a graphic computer program (GUI) for the user to enter desired speed at laptop. Besides, it additionally shows a graph of motor speed versus time to let the user monitor the performance of the system simply. supported the result, the reading of optical encoder engineered is sort of reliable. Through the project, it may be ended that microcontroller PIC 16F877A will management motor speed at desired speed though there's a variation of load.

Circuit of PIC16F877A

The goal of this project is to design a DC motor speed control system by using microcontroller PIC16F877A. It is a closed-loop real time control system. The controller will maintain the speed at desired speed when there is a variation of load. By varying the PWM signal from microcontroller (P controller) to the motor driver, motor speed can be controlled back to desired value easily.

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For this project, by applying Kp =1 to P controller in microcontroller, the speed response become under-damped response. If Kp less than 1, the speed response is not satisfied. At some greater gain, the speed response of the control loop becomes a steady-state oscillation. If the gain is increased past the point where steady oscillation is observed, the control loop will become unstable and the oscillations will increase in amplitude. The motor will suddenly speed up and it will damage the motor.

This project report is complete in every aspect and contains, block diagram, flow charts, full explanation of the project and components, microcontroller programming, advantages and disadvantages of various types of DC motor, speed measurement of DC Motor etc., so use this report for your reference and study work.

Project Author:- Abhijit Maity, Krishna Narayan Chowdhury, Nilesh Kumar Mal, Pinaki Dutta, Shyamal Kumar Bera, Sohini Chowdhury, Soumik Chakraborty, Subhadip Karmahapatra, Suhel Mohammed



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