Wireless Control of Speed and Direction of Induction Motor Using V/F Method

Abstract

Induction motors have already become an important drive configuration for many applications across a wide range of powers, speeds and Wide spread (90% of motors in industrial application) and excellent performance of the induction motors will ensure that the number of applications using them will continue increase for the foreseeable future. The aim of developing this project is to achieve full control of induction motor (its speed and direction of rotation). An electronic technique called pulse width modulation (PWM) is used to achieve the speed control; this technique generates high and low pulses; these pulses vary the speed in the motor. For the generation of these pulses a microcontroller (arduino) used. The PWM signal sent to motor driver to out specific values of voltage and frequency supplied to motor to maintain specific speed. In this project we use wireless Bluetooth signal which can be sent from mobile phone from a distance of 15 meters. That it can also control the rotation direction of motor and the system can actually adapt to the requirements of modern technology. This project is practical and highly feasible in economic point of view, and has an advantage of running motors of higher ratings. This project gives a reliable, durable, accurate and efficient way of speed control of induction motor