A design of the wind power dispatch automation system in Jilin power grid is proposed. According to this design， the active power plans of the wind farms are required first， the normal generator sets are then arranged by the dispatching center based on these plans and other security constraints. Then the active power plans of the wind farms and the local control strategy for the reactive power in the wind farms are calculated. In order to maximize the wind power and stabilize the voltage of the system， the reactive power of the wind turbines and the reactive compensation devices of the substation in the wind farms are controlled by the automatic voltage control（AVC） system. Thus， the wind power acceptability can be made full use of while the workload of the dispatching center is greatly relieved.