Controle de frequência em redes de baixa inércia por meio de cortes de carga, geração e uso de baterias

Raquel Guerra; Raphael Poubel; Úrsula Resende; Wesley Peres

doi:10.20906/SBAI-SBSE-2023/4058

Raquel Guerra Programa de Pós-Graduação em Engenharia Elétrica (PPGEL), Centro Federal de Educação Tecnológica, MG
Raphael Poubel Programa de Pós-Graduação em Engenharia Elétrica (PPGEL), Centro Federal de Educação Tecnológica, MG
Úrsula Resende Programa de Pós-Graduação em Engenharia Elétrica (PPGEL), Centro Federal de Educação Tecnológica, MG
Wesley Peres Departamento de Engenharia Elétrica, Universidade Federal de São João del-Rei, MG

DOI: https://doi.org/10.20906/SBAI-SBSE-2023/4058

Keywords: Variable renewable energy sources, frequency stability, droop control, load shedding; batteries

Abstract

This work proposes a formulation for the minimum load and generation sheddings, as well as the use of an energy storage system in electrical energy networks, to allow the maintenance of frequency within safe limits. To this end, an optimization problem was formulated that considers the particularities of wind generators as well as the droop characteristics of dispatchable generators. In addition, the charging/discharging of a battery was modeled considering its state of charge. The approach is applied to an isolated microgrid considering a planning horizon of 24 hours and residential load profile. For the optimal identification of the shedding, it was decided to use the meta-heuristic algorithm Particle Swarm.