Abstract: With wind energy and other volatile new energy generation having gradually become the main power source, it is difficult to ensure the flexible and secure operation of power systems by relying completely on the conventional power supply to balance the uncertainty and volatility of wind power. In this paper, a robust optimal model and method for wind farm synergetic participation in generation-reserve are proposed to realize the flexible operation of the system with a high share of new energy. Firstly, considering the wake effect of wind farms, the variable uncertainty set of wind power output with the change of wind turbines grid connected state is established; Based on the operation characteristics of wind turbines and wind farms, a wind power reserve model is proposed, which combines the de-loading operation of wind turbines and the wind turbine fast grid-connection. Furthermore, a two-stage robust optimization model considering network constraints for the synergetic operation of wind farms and the system is established. Then, the column constraint generation (C & CG) algorithm is used to solve the proposed model, and the generation-reserve decisions of wind farms and conventional units satisfying the system operation constraints under the forecasting and uncertain scenarios are given. Case analysis on the modified IEEE RTS-24 system and northwest power grid in China prove the economic viability of providing reserve via wind power, demonstrating the effectiveness of the proposed model.