Solis three-phase S6- GC3P (15-20) K03- LV - ND connects the DC power output from the solar panel, stabilizes the current through the input circuit, and filters out clutter. Next, the IGBT power devices in the inverter circuit, under precise control of the control chip, use PWM technology to invert DC power into AC power. The inductors and capacitors in the output circuit form a filtering network to purify the current and remove harmonics. At the same time, the control circuit monitors the status of the power grid and equipment in real time, adjusts output parameters, ensures compatibility with the power grid, achieves efficient and stable grid connection, and smoothly converts solar energy into usable electrical energy.