Remote detecting low voltage ride through ability of DFIG

There are difficulties in detecting low voltage ride through (LVRT) ability of offshore doubly fed induction generator (DFIG) because of complexity of sea condition. In this paper, a new scheme is put forward to solve this problem. This new scheme takes into account the effect of submarine cables on transient process of circuit, and the influence on short-circuit capacity of remote point. It proposes a new method to configure parameters of testing device. And it is implemented at grid connection point (GCP) directly instead of installation site of wind generators. The simulation results in MATLAB/Simulink validate the effectiveness of the scheme.