A Wireless Speed Control of Three Phase Induction Motor

Induction motors are the widely used motors in largely power-driven home appliances, agricultural and industrial applications. Induction motors are largely used because of its advantages such as Simple and rugged design, low cost, low maintenance and direct connection to an AC power source. Many applications need variable speed operation and one of them is a simple fan load. The main aim of the this paper is to design an real time electronic control system that can be used to control the speed of motors kept at remote locations using an embedded technology. This paper describes about speed monitoring and controlling of induction motor with the help of wireless technology. In the proposed system speed of three phase induction motor can be controlled i.e., speed can be increased or decreased by either increasing or decreasing the pulse width with the help of microcontroller. In addition to this measured speed can be send wirelessly at a distant location for the display.