Ongrid Power Plant

The grid-connected PV system consists of PV modules, grid-connected inverter, metering devices, cabling, wiring, power evacuation units, accessories and etc. The PV modules convert solar energy into DC electrical power which is then fed into a grid-connected inverter. The solar PV inverter's output is true and pure sine wave power. The inverter will feed this power into the grid via boosting equipments and thus system during day time reduce the total power demand from primary and auxiliary source of power, i.e., EB and DG power. The grid-inverter monitors the alternating current in the utility grid supply and generates electricity in synchronization with the grid.

The system which has a separate computer monitoring system will sense the current AC grid waveform and output a voltage to correspond with the grid. As the generated electricity is phase-matched. Grid-tie inverters are also designed to quickly disconnect from the grid if the utility grid goes down. This is to ensure that in the event of a blackout, the grid-tie inverter will shut down to prevent the energy it produces from harming any line workers who are sent to fix the power grid. The inverters have the features of sleep mode, invoke mode and export mode so that any disturbances on the grid such as overload, short circuit, over-voltage, etc shall disable the inverter and cause it to withdraw from the grid.