The distribution of transient energy over network of power system integrated with large scale wind turbines utilizing doubly fed induction generators (DFIG) is analyzed. And the network transient energy function of the system with wind farms is derived. Using the network transient energy function determine the control strategy of Thyristor Controlled Series Compensation in transient stability process, which is only based on the branch dynamic variables. The simulation results demonstrate that the method can improve the power system transient stability and the voltage recovery of generators.