Xie T, Zhang H, Ni C. Fault detection method for DFIG based on particle swarm optimized sliding mode observer . Bull. Pol. Acad. Sci. Tech. Sci. [Internet]. 2026 Jan. 2 [cited 2026 Aug. 16];74(1):e156765. Available from: https://wydawnictwo.pan.pl/index.php/bpasts/article/view/1221