Power System Economic Dispatch Considering Steady-State Secure Region for Wind Power

In this paper, an economic dispatch model considering a flexible generation redispatch is proposed for managing the wind power variability in electric power systems. The model considers the base-case operation cost as well as the steady-state secure region for the variable wind energy. The generation schedule in the secure region provides grid operators with the boundary for absorbing wind power. The proposed model is formulated as a generalized semi-infinite programming problem and the corresponding solution is presented. The impact of flexible thermal resources and transmission capacity on the calculation of the wind power secure region is also discussed. The proposed solution method is analyzed using the modified IEEE-RTS 1979.