The invention discloses a wind power system real-time dispatching-containing robust two-layer optimization model and a conversion equivalent method, belongs to the field of real-time dispatching of power systems, and particularly aims to minimize a difference between an allowable fluctuation amount of wind power and a random fluctuation amount under a condition of ensuring that the operation cost of a power grid is within an expected range to meet a load and wind power uncertainty as much as possible. The robust two-layer optimization model comprises an upper-layer problem and a lower-layer problem, wherein upper-layer problem pays attention to the operation safety of a power grid after wind power is accessed, so as to minimize a difference between the allowable fluctuation amount of the wind power and an expected fluctuation amount; the lower-layer problem forms a decision problem aiming at minimizing the operation cost of the power grid. The upper-layer and lower-layer problems in the model have an obvious hierarchical relation and have a close relation; operation constraints of all types of power grids can be met; the robustness of a decision result can be guaranteed.