Abstract :
As the prices of the power electronic devices are getting cheaper, inverters are widely used in various applications like induction motor controllers, in relay testing equipments, uninterrupted power supplies (UPS) etc. especially in applications like in induction motor controllers and in relay testing equipments not only the frequency, but the magnitude of the voltage need to be varied. For these kinds of applications pulse width modulated (PWM) inverters are more suitable. In PWM inverters to change the magnitude of the voltage only the value of the duty factor of the switching signals need to be varied. Popularity of these PWM inverters has been supported by the availability of few types of them namely as sinusoidal, harmonic elimination, square wave, regular sampled, distortion minimization etc. The aim of this project is to build a sinusoidal inverter in which sin PWM generated by programming in micro controller. It will reduce the hardware requirements considerably. It is expected to implement this inverter to supply variable voltages and frequencies
Keywords :
PWM invertors; photovoltaic power systems; power engineering computing; power system control; PWM inverter; charge controller; induction motor controllers; micro controller programming; photo voltaic system; power electronic device; pulse width modulation; relay testing equipments; sinusoidal inverter; uninterrupted power supplies; Control systems; Electronic equipment testing; Frequency; Induction motors; Power electronics; Power supplies; Power system relaying; Pulse width modulation inverters; Uninterruptible power systems; Voltage control;
