Distributed Generation, Using Battery Pack and Fuzzy Controller for Charge/Discharge Control

In this paper a strategy is introduced for distributed generation (DG) structure by using battery package and SPWM method for bi-directional AC/DC convertor. In proposed structure, a battery pack is connected to the power network via an AC/DC converter and a filter block. Active power direction has been controlled by a fuzzy controller for battery charge/discharge, considering battery state of charge (SoC). Also, a method has been introduced for islanding detection and isolated operation of DG system. Finally, simulation results, shows the effectiveness of proposed method.