Photosynthetic silicon energy sine wave inverter

This paper presents design and testing of a highly efficient single phase sine wave inverter, tailored for photovoltaic (PV) applications, to yield a 50 Hz pure sine wave output signal of.

Much work has been done in the field of pure sine wave inverter but for a waveform with low number of harmonics along with high efficiency is still an open challenge. There are techniques available to do this, but the need to adapt to a solution that is easy to implement as well as specifically for low energy applications.

The paper concentrates on the use of renewable solar energy by incorporating a multi-vibrator IC (NE-555), in this case operating in a stable mode, the PWM generating technique used to drive a pure sine wave inverter. It appears that the design is easy to implement and proves to be cost-effective for low power applications . II.

Available sine wave inverters are expensive and their output is not so good. For getting pure sine wave we have to apply sinusoidal pulse width modulation (SPWM) technique. The pulse width modulation inverter has been the main choice in power electronics because of its simplicity.

Thus it can be concluded that the proposed sine wave inverter is ideal for the photovoltaic power system in residential applications. To demonstrate the inverter a resistive load such as light bulb is connected to it and tested it by giving the supply.

Simulation and experimental results of the proposed inverter show that power from PV array can be converted to pure sine wave output voltage of 220V (rms) with a THD below 0.6%, while the FFT analyses confirm that the fundamental harmonic component lies at 50 Hz and higher harmonic components are completely eliminated.