Micro grid energy management system and energy management method

A micro grid energy management system is disclosed. The micro grid energy management system comprises a prediction sub system and an economic dispatching sub system, wherein the economic dispatching sub system calls the prediction sub system and sends down a corresponding economic dispatching instruction through artificial intelligence algorithm optimization based on a prediction value from the prediction sub system; the prediction sub system comprises a data module, a formation module, a prediction module and a communication module, wherein the data module is used for storing and/or acquiring historical data and current data; the formation module is connected with the data module and used for generating a prediction model according to the historical data from the data module; the prediction module is connected with the data module and the formation module, and used for generating the corresponding prediction value according to the current data from the data module based on the prediction model from the formation module; and the communication module is used for receiving a call instruction from the economic dispatching sub system, and/or sending the predication value to the economic dispatching sub system. The invention also relates to a corresponding micro grid energy management method.