Full numerical control three-phrase solar photovoltaic grid-connected inverter

The utility model discloses a full numerical control three-phase solar photovoltaic grid-connected inverter, comprising a three-phrase bridge type inverting unit, a control unit, a drive unit and a signal acquisition unit, wherein the three-phrase bridge type inverting unit forms a closed-loop control system together with the control unit and the drive unit through the signal acquisition unit; the input end of the three-phrase bridge type inverting unit is connected with the output end of a solar photovoltaic array; and the output end of the three-phrase bridge type inverting unit is connected with a three-phrase power grid through a three-phrase power-frequency transformer and an alternating-current connector. The full numerical control three-phrase solar photovoltaic grid-connected inverter has high efficiency and reliability, and low harmonic content of grid-connected current, and is particularly applicable to photovoltaic grid-connected power generation in areas with poorer quality of electric energy.