Adaptive photovoltaic inverter

The invention discloses an adaptive photovoltaic inverter, which comprises an inversion module, an input end connection terminal and an output end connection terminal, wherein an automatic identification circuit which is used for identifying the polarity of an input end and is capable of automatically switching the polarity into the plurality consistent with the polarity requirements of the inversion module is arranged between the input end connection terminal and the inversion module of an inverter. According to the adaptive photovoltaic inverter, automatic identification and control on the input voltage grade and polarity can be achieved; the use difficulty of inverter equipment is greatly lowered; and the damage probability due to a misoperation is lowered.