Generalizable Graph Neural Networks for Robust Power Grid Topology Control

• URL: http://arxiv.org/abs/2501.07186v2
• Date: Tue, 18 Feb 2025 18:20:08 GMT
• Title: Generalizable Graph Neural Networks for Robust Power Grid Topology Control
• Authors: Matthijs de Jong, Jan Viebahn, Yuliya Shapovalova,
• Abstract summary: Graph neural networks (GNNs) are a class of ML models that reflect graph structure in their computation. We propose the first GNN model for grid topology control that uses only GNN layers. We train both homogeneous and heterogeneous GNNs and fully connected neural networks (FCNN) baselines on an imitation learning task.
• Score: 0.24578723416255752
• License:
• Abstract: The energy transition necessitates new congestion management methods. One such method is controlling the grid topology with machine learning (ML). This approach has gained popularity following the Learning to Run a Power Network (L2RPN) competitions. Graph neural networks (GNNs) are a class of ML models that reflect graph structure in their computation, which makes them suitable for power grid modeling. Various GNN approaches for topology control have thus been proposed. We propose the first GNN model for grid topology control that uses only GNN layers. Additionally, we identify the busbar information asymmetry problem that the popular homogeneous graph representation suffers from, and propose a heterogeneous graph representation to resolve it. We train both homogeneous and heterogeneous GNNs and fully connected neural networks (FCNN) baselines on an imitation learning task. We evaluate the models according to their classification accuracy and grid operation ability. We find that the heterogeneous GNNs perform best on in-distribution networks, followed by the FCNNs, and lastly, the homogeneous GNNs. We also find that both GNN types generalize better to out-of-distribution networks than FCNNs.

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