Assessment of influence of grid disturbances on wind turbine DFIG converters

The aim of this paper is to study the behaviour of wind turbine generator during an external grid disturbance. The wind power generation system stability depends on many parameters such as fault occurrence, network configuration and protection system design. In the event of a short-circuit, all equipments in the nearby of fault occurrence must be disconnected and isolated from the system, in order to avoid severe damage or destruction. In this situation, protection systems must react rapidly, selective and efficiently. Simulations of wind turbine generator behaviour are obtained in Matlab Simulink environment.