Small signal stability analysis of a four-machine system with placement of multi-terminal high voltage direct current link. Journal of Energy in Southern Africa, [S. l.], v. 31, n. 1, p. 73–87, 2020. DOI: 10.17159/2413-3051/2020/v31i1a7430. Disponível em: https://energyjournal.africa/article/view/7430. Acesso em: 23 nov. 2024.