Cascading Failure Mitigation Via Transmission Switching

After decades of research, cascading blackouts remain one the unresolved challenges in bulk power system operations. A new perspective for measuring susceptibility to failures is clearly needed. The newly developed concept stress metrics may be able provide insights into this problem. method measures as by analyzing network structure and electrical properties. This paper investigates effectiveness transmission switching reducing risk failures, measured metrics. Based on line-outage distribution factors, an algorithm identify test candidates quickly. case study different IEEE 118-bus presented. results show that identified our proposed could used preventive well corrective mechanisms reduce system's failures. Contrary conventional operation wisdom lines out service jeopardizes reliability, suggest opposite; operators can often use switching, when under stress, a tool