Abstract
Due to rapid penetration of renewable energy sources (RES), it becomes more important to assess the feasibility of power system operation under limited controllable resources. This paper proposes a new method, “Robust Power System Security,” to evaluate the existence of the feasible region under uncertainties. Predicted RES and demands with their confidence intervals are specified to formulate a problem for the evaluation of the size of the worst-case feasible region. The method computes the degree of system security for the worst case. We demonstrate a linear constrained dynamic economic dispatch to verify the effectiveness of the proposed method.
