Abstract: For single machine fault and network communication fault of wind turbines,this paper proposes to replace centralized control with distributed control and designs the leader-follower distributed control strategy under two kinds of fault conditions,so as to reduce the adverse effect of fault on the system.First of all,based on Hamilton energy theory,the single-machine system model is expanded into the wind turbine cluster system model.Then,the design method of the leader-follower distributed control strategy is put forward to deal with the fault of the unit,so that the wind turbine cluster can maintain the stability under the single-machine fault of the leader unit or follower unit.Thirdly,considering the communication failure,the leader-follower control strategy in the weakly connected topology is designed to make the system stable and the active power output stable.Finally,by the simulation reult verification,it is indicated that the leader-follower control strategy system can enhanc the stability and reliability of the system under the unit shutdown fault and network communication fault.