A Proposed Energy Management System Architecture for Islanded Microgrids

This paper proposes a new centralized energy management system (EMS) architecture for islanded microgrids (MG). The proposed EMS is composed of five main units: the master, the data handling, the optimization, the time handling, and the system state units. The master unit is employed as the EMS operator that is responsible for managing the operation of all other units in the EMS system. Data handling unit performs the data exchange, preprocessing and storage. The optimization unit develops the optimal decisions required for successful operation of the MG. The time handling unit forecasts the future demand and generation in addition to managing the time intervals of decisions. The system state unit detects the system topology and estimates the system state. The proposed EMS optimizes the operation of the system and minimizes the overall cost of power generation while providing the consumers with secure, reliable and clean electricity.