Optimal energy management for grid connected microgrid by using dynamic programming method

This paper presents a method to build the optimal energy management for grid connected microgrid which comprises the PV system and battery energy storage system (BESS). The objective is to minimize the cash flow of the system as well as to the maximum of net power import from the main grid. The constraints are given by the power balance between the production and consumption, and the capacity of each DER. The decision variables are the scheduling of DER power, the cash flow and the maximum of the net power import. Simulations are carried out in order to evaluate the efficiency of the proposed method.