An attack-resilient fault-location algorithm for transmission grids based on LAV estimation

We priorly review the existing methodology for transmission-grid fault location utilizing synchronized measurements that are retrieved from optimally placed sensors. Then, we develop an enhanced protection strategy for guarding against cyberattacks, thus achieving a robust fault location in transmission systems. As such, autocorrection of corrupted sensor measurements using the equality-constrained least-absolute-value (LAV) state estimator will secure the transmission grid against vulnerabilities caused by cyberattacks on synchronized measurements. The proposed algorithm is tested using a particular fault scenario on the IEEE 57-bus transmission grid.