The advantages of Chinaoff-grid solar inverters are high efficiency, high reliability,and a wide range of DC input voltage. In medium andlarge-capacity photovoltaic power generation systems, the outputof the solar energy inverter power supply is a sine wave withless distortion.

Considering the energyconsumption of the transformer in the inverter circuit using thetransformer, the topology of the off-grid solar inverter adoptsthe inverter circuit without a transformer. Filtered andconverted into alternating current that can be directly used bythe load.