Energy Management of a Fuzzy Control System in a Microgrid

Abstract

Micro-grids can be considered as the ideal way to integrate renewable energy sources into electricity generation and to give consumers the opportunity to participate in the electricity market as consumers and producers. Our study aims to implement a micro-grid with solar and wind power generation and storage systems. However, the integration of a battery storage system into a micro-grid requires a thorough control of charge and discharge techniques due to the different load conditions. In this study, the proposed system can transfer electricity to and from the main grid. Although, the objective of the simulation is to control at the same time the energy input and output of the principal grid in order to maximize the profit and minimize the cost. To cope with the uncertainties of the system, a fuzzy logic controller for charge-discharge as well as a scheduling of battery energy storage systems is simulated on Matlab, in order to ensure the energy availability on demand and to take a proper decision whether to store or sell energy.