Paper Title
Implementation of Rule-based Energy Management System for Grid Connected PV-Wind-Battery Hybrid Power Supply

Abstract
This paper presents the implementation of a Rule-based energy management system (EMS) for a grid-connected hybrid power supply composed of photovoltaic (PV), wind turbine, and battery storage systems. The system aims to ensure continuous, reliable and cost-effective energy delivery by coordinating renewable sources and energy storage with the utility grid. HOMER Pro software is utilized for optimal sizing of the system components to achieve the most suitable configuration under given load and resource conditions, while MATLAB/Simulink is used for system design, modeling and simulation. The proposed Rule-based EMS effectively balances power flow between generation units, storage and the grid under different operating conditions. Simulation results demonstrate improved system reliability, enhanced renewable energy utilization and reduced dependency on the utility grid. Keywords – Rule-Based Energy Management System, Hybrid Renewable Energy System, Optimal Sizing, HOMER Pro, MATLAB/Simulink, Power Flow Control