Abstract
In this study we adopt three-stage dispatch method to solve the electrical power systems Economic Dispatch (ED) problem. Due to the new uncertainties in large-scale wind power integration, Conditional Value-at- Rist (CVaR) was introduced to described the safe and stable operation of the power system. Minimizing both the fuel cost and emission of atmospheric pollutants of thermal generators and load shedding cost were considered as objective functions, construct a considering risk constraints three-stage dispatch model of power systems. When computing, we incorporated the risk constraints into the objective function by penalty to get the optimization model in this study and the smoothing function method is used to make the optimization model have a continuous features, last the sample average method is used to calculate. Showing the advantage of this method in this study by calculating and analysis a 30 node illustrative system, besides, the last conclude demonstrates that the model proposed is feasibility.
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