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arXiv · 2605.07010

Inductive Power Grid Cascading Failure Analysis with GRU-Gated Graph Attention

Tianxin Zhou·Xiang Li·Haibing Lu
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Abstract

Identifying vulnerable transmission lines in power grids before a cascading failure occurs is challenging: existing methods can learn inter-line failure correlations from cascade data, but they are trained and evaluated on a single grid, and transferring the learned knowledge to an unseen grid remains an open problem. We address this by training a single Gated Recurrent Unit (GRU)-gated Graph Attention Network on combined cascading failure data from limited training grids and applying it directly to any unseen grid without retraining. A GRU gate controls what information each node retains or discards at each cascade iteration. Empirical evaluation shows that the model transfers zero-shot to multiple new grids spanning inter-time and inter-domain settings. Using information extracted from the trained model, we consistently identify more vulnerable lines than established structural and electrical baselines.

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Tianxin Zhou, Xiang Li, Haibing Lu. 2026-05-07. Inductive Power Grid Cascading Failure Analysis with GRU-Gated Graph Attention. https://arxiv.org/abs/2605.07010

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