A: The anti-reverse current of the DC terminal is mainly realized by anti-reverse diode;
The anti-reverse on the AC side is mainly realized by the current detection device (two-way smart meter and CT) at the grid connection point. An inverter is equipped with a two-way smart meter and a current transformer. The inverter and the meter communicate through the 485 interface. The two-way meter is installed at the grid connection point. When the inverter detects that the meter has current flowing to the grid, it immediately changes its working mode. , From the MPPT maximum power tracking mode to the control output power mode, the output power of the inverter is almost equal to the load power.