Parallel off grid photovoltaic power generation systems are widely used in
places with frequent power outages, spontaneous self use of photovoltaic power
that cannot be used for grid connection, self use electricity prices that are
much higher than grid electricity prices, and peak electricity prices that are
much higher than valley electricity prices.
The system is composed of photovoltaic modules, solar photovoltaic and off
grid integrated machines, batteries, loads, etc. The photovoltaic array converts
solar energy into electrical energy under illumination, and uses solar energy to
control the inverter integrated machine to supply power to the load while
charging the battery; When there is no light, the battery supplies power to the
solar controlled inverter integrated machine, and then supplies power to the AC
load.
Compared to grid connected power generation systems, this system has added
a charging and discharging controller and a battery. In the event of a power
outage in the grid, the photovoltaic system can continue to operate, and the
inverter can switch to off grid operation mode to supply power to the load.
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