In the photovoltaic power generation system, it is located between the photovoltaic array and the grid, and can convert the direct current generated by the photovoltaic panel into alternating current, and achieve voltage boost, so that the electric energy is smoothly incorporated into the grid. For wind power generation, the box-type substation is installed near the wind generator set to collect the electrical energy generated by the wind generator, perform transformer and control, and ensure the stable output of wind power. In the energy storage power station, the box-type substation also plays a key role in voltage conversion and power distribution for the charging and discharging of the energy storage battery, effectively managing the power exchange between the energy storage system and the external grid, and helping the efficient use of new energy.