Energy Management System for Hybrid PV-Wind-Battery Based Fuzzy Logic Controller System

Abstract

This research proposes an Energy Management System (EMS) for a small-scale Hybrid PV-Wind-Battery based standalone system.PV energy and wind energy are used as primary energy sources, with the battery serving as a backup supply.The Solar Energy Conversion System (SECS) and the Wind Energy Conversion System (WECS) are modeled and simulated with the help of different boost and buck converters.This work also discusses the design, simulation, and implementation of a multi-source renewable energy system MPPT control technique based on a Fuzzy Logic Controller (FLC).Renewable sources are varied according to the solar irradiance and wind speeds while loads are kept constant.The DC load is connected directly to the DC bus, while AC load is connected via inverter.After the addition of the both system, if the power cannot sustain the load due no wind and foggy atmosphere, the battery system is incorporated to support the system.It incorporates the EMS using fuzzy logic for the power balance of the system.For the better performance optimization, operational efficiency and the reliability of the system, hybrid PV-WT-Battery system in modeled and simulated in MATLAB/Simulink.This system is for standalone mode, it provides the foundation for further study with interface to the grid and many other problems.