Mitigation of Saturated Cut-Sets During Multiple Outages to Enhance Power System Security

Ensuring reliable operation of large power systems subjected to multiple outages is a challenging task because the combinatorial nature problem. Traditional approaches for security assessment are often limited by their scope and/or speed, resulting in missing critical contingencies that could lead cascading failures. This paper proposes two-component methodology enhance system security. The first component combines an efficient algorithm detect cut-set saturation (called feasibility test (FT) algorithm) with real-time contingency analysis (RTCA) create integrated corrective action (iCA), whose goal secure against as well branch overloads. second only employs results FT relaxed (rCA) post-contingency saturation. more comprehensive, but latter computationally efficient. effectiveness two components evaluated based upon number cascade triggering alleviated, and computation time. obtained analyzing different case-studies on IEEE 118-bus 2000-bus synthetic Texas indicate proposed successfully enhances speed during outages.