Adaptive Network Response to Line Failures in Power Systems

Transmission line failures in power systems propagate and cascade nonlocally. In this work, we propose an adaptive control strategy that offers strong guarantees both the mitigation localization of failures. Specifically, leverage properties network bridge-block decomposition a frequency regulation method called xmlns:xlink="http://www.w3.org/1999/xlink">unified control . If balancing areas over which unified operates coincide with bridge-blocks network, proposed drives postcontingency system to steady state where impact initial outages is localized within they occurred whenever possible, stopping cascading process. When cannot be localized, provides configurable design progressively involves coordinates more areas. We compare classical automatic generation (AGC) on IEEE 118-bus 2736-bus test networks. Simulation results show our greatly improves overall reliability terms $N-k$ security standard, localizes majority simulated contingencies. Moreover, framework incurs significantly less load loss, if any, compared AGC, all case studies.