Fuzzy Logic Control for Energy Management in Distributed Generation Paradigm

To alleviate the losses caused owing to the sporadic nature of renewable power sources to the distributed generation system and to make use of these resources in a more efficient way, a fuzzy logic control based pursuit for Energy Management System (EMS) has been presented. The strategy has been planned by analyzing the difference between the output power from the renewable energy and the demand load power, considering the state of charge of the battery as well. The modes of operation have been dictated by connotations of the fuzzy rules. Here, photo voltaic (PV) batteries and wind power have been used as the renewable power sources. The rational control of resources at hand and systematic operation with six different modes is demonstrated using simulation. These modes are hence used to generate different control signals for various operations. The other major component of the system is the bidirectional DC/AC converter, which along with suitable switches for grid and load connection, routes the direction of power flow to best utilize the available power resources. Simulation results concur with the fuzzy rule matrix proposed.