The wind-thermal bundling mode solves the problems of insufficient local wind power consumption capacity and poor single transmission economy

but at the same time

the incorporation of wind power also brings adverse effects on the transient stability of the system. Firstly

based on the external characteristics of DFIG

the single ended power transmission equation of wind fire baling system is established

and the change of power angle characteristics caused by wind power integration is analyzed in detail

which leads to the decrease of system transient stability. Then

the fault current limiter is proposed to improve the power transmission limit during the fault period

and the equivalent circuit of the wind fire baling system with fault current limiter is established. The mechanism of using fault current limiter to improve the transient stability of the system is analyzed. Finally

the simulation results show that the series fault current limiter can significantly improve the transient stability of wind fire baling system.