Optimal Operational Planning of Networked Microgrids using Distributed Energy Management System

This paper proposes a flexible distributed energy management system for the coordinated operation of networked microgirds (MGs). Each MGs are considered as distinct entities with local objectives to optimize their own operation costs and power exchanges. The networked MGs are connected by a common bus, which can exchange electrical powers in this way. A two-level algorithm is used to coordinate the operational planning of these MGs. The first level is for the economic operation of each microgrids and the second level is to optimize the power exchanges. The planning of the MGs is simulated by taking into account the power flow equations and voltage constraints in a multi-MG system in a 24-hour period. A penalty price is also defined to control the power exchanges among MGs. The results of simulation indicate that using the proposed energy management system increases the performance and improves the reliability in each of the MGs.