Energy Management System in Residential Microgrid Using MPC with Considering Uncertainties

Abstract

Demand response is one of the short-term responses to the increasing demand for electrical energy in the residential sector of the energy market. Due to the amount of electricity tariff in different hours, moving the load from peak hours to other will increase customer profits. In this article, an energy management system is proposed with considering renewable power generation uncertainty. The proposed residential micro grid consists of a wind turbine, an energy storage system (ESS), and residential load in off-grid and on-grid conditions. The uncertainty in wind power generation is considered, and based on uncertainty, the limitation of SOC is changed. In this regard, the battery can supply-demand at critical hours. The MPC controller successfully performed the energy management with/without demand response while satisfying the constraints and objectives of the residential micro grid in all four scenarios. The demand response program improved the overall cost of the microgrid. The off-grid residential micro grid with a demand response program provided the highest economic benefits.