Fig. 18From: Fault ride-through capability improvement in a DFIG-based wind turbine using modified ADRCThe d and q components of the stator flux during symmetrical voltage sag for Rcrowbar = 0.8 Ω: (a) PI controller [89, 90], (b) Conventional ADRC with default-fal [45, 79], (c) FFOADRC with default-fal, (d) FFOADRC with fal-arcsinh, (e) FFOADRC with fal-arctan, and (f) FFOADRC with fal-tanhBack to article page