Using Solar Photovoltaic Systems, Battery Energy Storage Systems, and Underfrequency Load-Shedding to Improve the Frequency Stability of Power Systems. Al-Rafidain Engineering Journal (AREJ), [S. l.], v. 28, n. 1, p. 165–172, 2023. DOI: 10.33899/rengj.2022.136061.1201. Disponível em: https://rengj.uomosul.edu.iq/index.php/rengj/article/view/30844. Acesso em: 26 jun. 2026.