Centralized inversion voltage transformation type photovoltaic power generation complete device

The utility model discloses a centralized inversion voltage transformation type photovoltaic power generation complete device. The device comprises photovoltaic power generation DC units, DC power distribution cabinets, photovoltaic grid-connected inverters, a transformer with split windings, and a device measurement and control instrument; the photovoltaic power generation DC units are electrically connected with the DC power distribution cabinets; the DC power distribution cabinets are connected with the transformer with split windings via the photovoltaic grid-connected inverters; the device measurement and control instrument is connected with the DC power distribution cabinets, the photovoltaic grid-connected inverters and the transformer with split windings via communication lines; each photovoltaic power generation DC unit comprises photovoltaic assembly support devices, photovoltaic assembly strings and a DC combiner box; the photovoltaic assembly support devices are used for fixing the photovoltaic assemblies; and the photovoltaic assembly strings are parallelly accessed to the corresponding DC combiner box and then connected to the corresponding photovoltaic grid-connected inverter. Power generation, monitoring and communication of the centralized inversion voltage transformation type photovoltaic power generation device are achieved, and complete design, installation, application, and automatic and efficient operation of the photovoltaic power generation DC units, the DC power distribution cabinets, the photovoltaic grid-connected inverters and the transformer with split windings are achieved.