Fault Modeling and Characteristic Analysis of Offshore Wind Turbines with Doubly Fed Induction Generator

In this paper, the power systems computer aided design (PSCAD) model of offshore wind turbines with doubly fed induction generator (DFIG) is completed, and the fault ride-through characteristics of DFIG for wind turbine during grid fault are analyzed. A method of changing the reactive current compensation of the grid-side converter control strategy is proposed. The detailed DFIG for wind turbine and its fault ride-through model were built in the PSCAD/EMTDC, an electromagnetic transient simulation software. The simulation results prove the correctness of the model and the effectiveness of the proposed reactive current compensation method.