Photovoltaic power station integrated automatic system and method of adjusting active power output

The present invention relates to a photovoltaic power station integrated automatic system. The photovoltaic power station integrated automatic system comprises, from bottom to top, a subarray layer, a subarray looped network layer, a spacing layer, a network layer and a station control layer. Each photovoltaic subarray in the subarray layer is equipped with a photovoltaic subarray integrated device, and in the subarray looped network layer, the power generation partitions are divided according to the actual engineerings, and the integrated devices in the power generation partitions form the subarray looped networks which are isolated with each other; in the spacing layer, the partition monitoring is carried out by taking the power generation partitions as the units, in the network layer, a plurality of data networks are divided according to different applications, and the data networks are isolated with each other, and in the station control layer, the equipment of the station control layer interact data with the equipment of the spacing layer via the network layer. According to the present invention, the partition monitoring is adopted, the monitoring content is clear, and the operation and maintenance personnel are convenient to check. An AGC/AVC substation is adopted and is in distributed adjustment, thereby improving the adjustment speed. The data networks are isolated with each other, thereby reducing the network fault risks, and facilitating checking the faults rapidly; the whole system is clear in network structure, the later extension is facilitated, and the access difficulty is reduced.