A Cardinality Minimization Approach to Security-Constrained Economic Dispatch

We present a threshold-based cardinality inimization formulation for the security-constrained economic dispatch problem. The model aims to minimize operating cost of system while simultaneously reducing number lines in emergency zones during contingency events. allows operator monitor duration which operate and ensure that they are within acceptable reliability standards determined by operators. develop continuous difference-of-convex approximation minimization problem solution method solve also mixed-integer programming reformulation Our numerical experiments demonstrate approach reduces overall as well avoids prolonged periods high electricity prices