Abstract
In this paper, a three-phase inverter with renewable source input is integrated into a grid in synchronization for power sharing by load. In previous topologies, the DC source connected inverter is not synchronized to the grid which causes harmonics and voltage distortions damaging the load and the source. In order to ensure power sharing by the load from the inverter and the grid, the inverter needs to be operated in synchronization to the grid with the same voltage mag-nitude, frequency and phase as that of the grid voltage. In this paper, the com-plete power from the load is shared by the three-phase grid and the three-phase inverter module reducing the consumption from the conventional grid. This is achieved using the PLL for the reference angular frequency generation with feedback from grid voltage and is connected to the sinusoidal PWM generator. The PLL is used to generate unit vector template reference signals for the signal generator operating the six-switch inverter. The inverter and grid are inter-connected through LC filter for the reduction of harmonics. The power sharing, voltage, and current graphs with THD analysis are analyzed with the help of the MATLAB software.
Highlights
In recent years, there is huge development of renewable energy power generation to reduce global warming due to generations of environmentally hazardous gases from the conventional way of generation
A three-phase inverter with renewable source input is integrated into a grid in synchronization for power sharing by load
The DC source connected inverter is not synchronized to the grid which causes harmonics and voltage distortions damaging the load and the source
Summary
There is huge development of renewable energy power generation to reduce global warming due to generations of environmentally hazardous gases from the conventional way of generation. Asumadu rating power is by thermal power plants (which include coal plants, nuclear power plants etc.), or utilizing diesel generators which cause smoke and fumes resulting in increasing the earth’s temperature This continuation of generating power using these resources may lead to further destruction of the environment and make it uninhabitable for humans. Other sources like wind farms, tidal power plants, and biogas plants generate power directly as AC which can be connected directly to load without any conversion. Operating these sources in a standalone condition [5] [6] [7] is much easier compared to interconnection with the grid for a parallel power sharing condition [4].
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