Energy management system for hybrid renewable energy system

Abstract

Conventional power system is mainly based on fossil fuel power plant. The latter is huge source of pollution while its primary energy, fossil fuel, is being rapidly depleted. However, some remote loads and villages cannot benefit from this electric energy for the raison that there is no network. Renewable off-grid electricity supply is one alternative that has gained attention especially for those types of load or villages. The aim of this project is to present an optimal hybrid energy system to meet the electrical demand in a reliable and sustainable manner for an off-grid remote village.The proposed system is composed of Photovoltaic source, diesel generator and battery storage. In fact, solar energy source alone cannot meet the requirement of micro-grids or remote loads in terms energy. Therefore, diesel and a battery are associated to store and supply power when there is excess and lack of power respectively.Anenergy management system to control the hybrid system is proposed. It is built based on three goals which are: (i) energy demand satisfaction; (ii) system cost reduction; and (iii) reduction of gas emission.Obtained results have showed that the proposed energy management system accurately uses solar energy source to minimize operation of Diesel and battery.