Analyzing low voltage ride through capability of doubly fed induction generator based wind turbine

Abstract

Doubly-fed induction generators (DFIGs)-based wind turbine (WT) are the major sources of renewable energy generation around the world. The low voltage ride-through (LVRT) capability of such sources must be improved to keep them connected with the grid during faults. Due to its sensitivity to the grid disturbances, sober arrangements should be made to keep DFIG connect to the grid. Therefore, this paper implements the crowbar resistance protection scheme on the practical 153MW ADAMA-II wind farm, situated in Ethiopia, for enhancing the LVRT of WT. The dynamic performance of the DFIG-based WT incorporated with the crowbar resistance is analyzed and compared under steady-state and symmetrical grid disturbances. To show the effectiveness of the proposed scheme, the dynamic performance is analyzed and compared with the existing capacitor bank system by observing various parameters. For modeling and simulation purposes, MATLAB/Simulink software is utilized in this research study. The results verify the superiority of the proposed LVRT capability in practice.