Transient tripping control of large-scale wind power integration system

Massive increase in the proportion of large-scale wind power integration influences the transient security and stability of power system in a way that wind power tripping is needed under some severe fault circumstances. In this article, we analyzed the doubly-fed induction generator (DFIG) operational characteristics. Furthermore, the differences between thermal power and wind power tripping effects are examined from the perspective of transient energy. The results show that the combination of the wind power and thermal power tripping should be considered in the emergency control of the grid-connected wind farms system. Therefore, we proposed the optimal tripping decision-making considering wind turbine. The results of transient tripping example of a certain regional system show that selecting a reasonable tripping ratio of thermal power to wind power can improve recovery characteristics of post-fault system and improve the system´s security and stability.