Estimador baseado no Critério de Máxima Correntropia para Microrredes Ilhadas

Pedro Fernandes Nogueira; Wesley Peres; Lane Maria Rabelo; Raphael Paulo Braga Poubel

doi:10.20906/SBAI-SBSE-2023/4087

Pedro Fernandes Nogueira Programa de Pós-Graduação em Engenharia Elétrica (PPGEL), Universidade Federal de São João del-Rei, MG
Wesley Peres Programa de Pós-Graduação em Engenharia Elétrica (PPGEL), Universidade Federal de São João del-Rei, MG
Lane Maria Rabelo Programa de Pós-Graduação em Engenharia Elétrica (PPGEL), Universidade Federal de São João del-Rei, MG
Raphael Paulo Braga Poubel Departamento de Engenharia Elétrica, Centro Federal de Educação Tecnológica, MG

DOI: https://doi.org/10.20906/SBAI-SBSE-2023/4087

Keywords: State Estimation, Islanded Microgrids, Maximum Correntropy Criterion, Bad Data Rejection, Phasor Measurements

Abstract

This study presents a methodology for state estimation in isolated microgrids, considering the steady-state frequency as a state variable. The estimator is framed as an optimization problem grounded on the maximum correntropy criterion, considering power injections as inequality constraints to ensure observability. The measurement plan incorporates synchronized phasor readings. The simulation results, even in the presence of simple gross errors, are compared with those provided by the estimator based on the weighted least squares method, demonstrating its error rejection capability.