Fig. 33
From: Fault ride-through capability improvement in a DFIG-based wind turbine using modified ADRC
Rotor current of the DFIG during asymmetrical voltage sag for different values of Rcrowbar. (a) Rcrowbar = 0.01 ohm, (b) Rcrowbar = 0.2 ohm, (c) Rcrowbar = 0.4 ohm, and (d) Rcrowbar = 0.6 ohm