Active power control device and control method for distributed photovoltaic power station

The invention provides an active power control device and control method for a distributed photovoltaic power station. The control device comprises a communication management module, a command processing module, an AGC module, a data management module and an information displaying module. The data management module is in charge of storing all data information related to an active power control system and in charge of history base and real-time base management. The information displaying module is in charge of displaying the operation information of the active power control system. The AGC module carries out active power distribution on all inverters through the equal-margin distribution strategy according to the latest real-time information received at present, so that the active power of the current power station meets the requirement of power grid dispatching.