Performance Evaluation of Fault Ride-Through Strategies for Wind Power Plant Type 4

The wind turbine generator (WTG) type 4 is a promising prototype for the renewable energy industry. How-ever, its implementation is challenging due to the numerous standards, especially those for fault ride-through (FRT) capa-bilities. This paper evaluates the performance of two different FRT strategies for WTG type 4 under grid conditions, taking into account varying values of short circuit ratio (SCR) and X/R ratio. The aim is not only to gain a comprehensive understanding of these FRT strategies' characteristics but also to assess the response of WTG type 4 in grid fault. Two primary scenarios are conducted: grid voltage oscillation over a certain period and transmission line short-circuit faults. The study was validated using electromagnetic transient simulations.