Residential Microgrid Load Management and Optimal Control in grid Connected and Islanded Mode

Abstract

The recommended solution for smart energy management in a residential micro-grid requires the development of advanced computational tools to put in place effective management strategies and maintain the balance between supply and demand. A residential micro-grid makes it possible to exploit renewable energy sources locally, while optimizing production, consumption and storage in order to participate in the balance of the distribution network. In this paper, an optimal design approach integrating the planning of energy flows and sizing of the elements of a residential micro-grid with storage is developed in order to define the optimum number of PV panels and battery banks capacity. The approach consists in designing architectures and conversion chains adapted to both the integration of decentralized generation, with energy storage, connected or not to a distribution network, while ensuring the intelligent management of energy in this residential city. Then, an adjustment of consumption is obtained by adjusting the daily consumption curve in order to adapt it to production and to maintain the balance between supply and demand. The principle is based on the modulation of the load curve by distributing the consumption during the day in order to avoid consumption peaks during peak periods and the mismatch between consumption and energy availability locally.