The American energy storage converter is the converter of green energy such as solar/wind energy stored in the battery system, if necessary, through the energy storage converter inverter sent to the three-phase AC boost transformer. It can effectively solve the instability and periodicity of wind power/photovoltaic energy. The machine is composed of an energy storage converter (PCS), a bus bridge, a low-voltage chamber (communication + power distribution), an oil-immersed transformer (oil-immersed load switch + fuse), a high-voltage cable room and a shell of the machine.