A battery management scheme for versatile power transfer in smart microgrids

A hybrid energy system consisting of wind turbines, photovoltaic (PV) arrays and battery storage interconnected via a common DC bus, is one of the key building block of smart microgrids. Such hybrid systems have a wide variety of applications ranging from homes and buildings to factories thanks to its capability of reducing the electricity cost. In this paper, we present a battery management scheme for hybrid energy systems that allow versatile power transfer as well as improved power quality management in connecting various distributed generators. We first develop a scheme for flexible battery management and then apply a modified hysteresis-based control strategy to our battery management scheme. To demonstrate the effectiveness of our scheme, we implement a MATLAB/Simulink framework to model and simulate our scheme under a 100-kW hybrid system scenario.