2021/04/27 by Reetam Sen Biswas, Biswas, Reetam Sen, Anamitra Pal +5 · 1 citation
Engineering · #FOS: Electrical engineering #Infrastructure Resilience and Vulnerability Analysis #Optimal Power Flow Distribution #Power System Optimization and Stability #Power System Reliability and Maintenance #Systems and Control (eess.SY) #electronic engineering #information engineering
paper · pdf · doi:10.48550/arxiv.2104.13445
openalex publication_date 2021/04/27 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
Ensuring reliable operation of large power systems subjected to multiple\noutages is a challenging task because of the combinatorial nature of the\nproblem. Traditional approaches for security assessment are often limited by\ntheir scope and/or speed, resulting in missing of critical contingencies that\ncould lead to cascading failures. This paper proposes a two-component\nmethodology to enhance power system security. The first component combines an\nefficient algorithm to detect cut-set saturation (called the feasibility test\n(FT) algorithm) with real-time contingency analysis (RTCA) to create an\nintegrated corrective action (iCA), whose goal is to secure the system against\ncut-set saturation as well as critical branch overloads. The second component\nonly employs the results of the FT to create a relaxed corrective action (rCA)\nto secure the system against post-contingency cut-set saturation. The first\ncomponent is more comprehensive, but the latter is computationally more\nefficient. The effectiveness of the two components is evaluated based upon the\nnumber of cascade triggering contingencies alleviated, and the computation\ntime. The results obtained by analyzing different case-studies on the IEEE\n118-bus and 2000-bus synthetic Texas systems indicate that the proposed\ntwo-component methodology successfully enhances the scope and speed of power\nsystem security assessment during multiple outages.\n