The effect of wind-based generation inclusion on economic load dispatch problem

This paper investigates the effect of significant wind-based capacity inclusion on economic load dispatch problem, while the source wind is susceptible to short duration variations (SDV) of wind speed. SDV is referred to wind speed uncertainty around a short-duration- stable mean value. Analytical formulation of the economic load dispatch (ELD) problem including of wind power generation is presented separately for cases with and without representation of transmission losses. In each formulation, the effect of SDV of wind speed is included as a total amount of power, thereby avoiding the complexity of stochastic models. A 3-unit case study is resolved using GAMS to illustrate the variation in the optimal cost, losses, and system-λ in these two test system with respect to (1) variation of wind generation level and (2) variation of short-duration-stable mean wind speed.