Machado SM, Silva ND. Control techniques and synchronization methods for grid-connected renewable energy systems - A survey. Semin., Exact Tech. Scienc. [Internet]. 2017 Oct. 4 [cited 2024 Jun. 29];38(1):63-76. Available from: https://ojs.uel.br/revistas/uel/index.php/semexatas/article/view/24012