Performance Investigation of a Hybrid Energy System with Battery Support under Grid Connected Operation

Abstract

This paper presents an advanced energy management strategy for an AC-DC micro grid powered by a hybrid configuration of renewable energy sources, specifically wind and solar photovoltaic (PV) systems, integrated with battery energy storage systems (BESS). With the increasing penetration of renewable energy into the grid, significant challenges arise in maintaining system stability due to their intermittent and stochastic nature. To address these challenges, a Model Predictive Control (MPC) framework is proposed to coordinate the active power flow and enhance the dynamic performance of the micro grid. The proposed strategy ensures seamless interaction between generation units and storage devices, maintaining power balance under varying load and generation conditions. Simulation results validate the effectiveness of the proposed method in achieving reliable, flexible, and secure operation of the micro grid. The approach demonstrates improved transient response, reduced power fluctuations, and enhanced grid stability, thereby supporting the integration of high levels of renewable energy into the power system.