Hybrid Energy Storage System Micro gridsIntegration for Power Quality Improvement UsingFour-Leg Three-Level NPC Inverter and Second-Order Sliding Mode Control. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 5, n. 4, p. 985–988, 2018. Disponível em: https://www.ijaerd.org/index.php/IJAERD/article/view/5590. Acesso em: 9 sep. 2025.