The distributed PV power generation system mainly includes solar photovoltaic cell components, grid-connected inverters, energy storage batteries, bidirectional inverters for battery charging and discharging, and electric energy meters. PV power generation systems have many advantages, such as easy installation, less maintenance, and no pollutants emitted during the power generation process. The schematic diagram of a typical distributed PV power generation system is as follows:

Generally, the distributed PV power generation system mainly adopts the mode of "self-generation and self-use, and surplus power tranported to be on the grid". The electricity generated by the solar panel is given priority to power the local load. When the local load is not used up, the excess electricity is sent to the grid; when the PV system is used for the local load and power is not enough, the grid and PV system can supply power to the load at the same time. The PV grid-connected system consists of solar modules, grid-connected inverters, meters, loads, two-way meters, grid-connected cabinets, and grid interface.