Photovoltaic power generation power prediction and forecast system and method

The invention discloses a photovoltaic power generation power prediction and forecast system and method, and the system comprises a region division module which builds a coordinate system according to the geographic information of a power station, and divides the coordinate system into a plurality of same region blocks; the weather acquisition module is used for acquiring local weather information in real time; the meteorological simulation module correspondingly substitutes the meteorological information into the coordinate system and simulates the advancing condition of the cloud after preset time; the data analysis module is used for analyzing the area of an area block occupied by the cloud according to a meteorological simulation result, calculating a predicted value of irradiance suffered by the power station in combination with the light intensity data, and calculating a power predicted value of the power station according to the predicted value of irradiance; the real-time adjusting module is used for