Photovoltaic

Photovoltaic inverters are divided into household inverters, industrial and commercial inverters, and ground power station inverters according to application scenarios. As the core device of photovoltaic inverter, power semiconductor devices perform the function of electric energy conversion. The bus voltage of household inverter is generally less than 500V, discrete solution is primarily used; The bus voltage of the series inverter is 1100V, and the three-level PIM module solution is dominant. The bus voltage of the inverter of the ground power station is 1500V, which is dominated by the high-current module of the half-bridge, and the three half-bridge modules are combined as a bridge arm of the three-level INPC.