Product

DC input and filtering: Receive the DC power output from a single string of photovoltaic modules, stabilize the voltage through a filtering circuit, and reduce current fluctuations.

DC-AC inverter conversion: By using internal power switching devices (such as IGBT), direct current is converted into alternating current, initially high-frequency alternating current.

Grid adaptation and protection: Adjust the inverted AC power to the same frequency (50Hz in China) and voltage (220V) as the grid, and also have protection functions against islanding, overcurrent, overvoltage, etc., to ensure safe grid connection.

The maximum photovoltaic DC power that the inverter can stably receive needs to be matched with the total power of the photovoltaic modules (usually the module power is slightly higher than the inverter, with a reserved 10% -20%).

The minimum DC voltage at which the inverter starts working, as well as the effective voltage range of maximum power point tracking (MPPT), need to cover the operating voltage range of the photovoltaic module in order to generate electricity efficiently.