Predicting Dynamic Stability of Power Grids using Graph Neural Networks

• URL: http://arxiv.org/abs/2108.08230v1
• Date: Wed, 18 Aug 2021 16:43:06 GMT
• Title: Predicting Dynamic Stability of Power Grids using Graph Neural Networks
• Authors: Christian Nauck, Michael Lindner, Konstantin Sch\"urholt, Haoming Zhang, Paul Schultz, J\"urgen Kurths, Ingrid Isenhardt and Frank Hellmann
• Abstract summary: We investigate the feasibility of applying graph neural networks (GNN) to predict dynamic stability of synchronisation in complex power grids. We generate two synthetic datasets for grids with 20 and 100 nodes respectively and estimate single-node basin stability (SNBS) using Monte-Carlo sampling. We show that SNBS can be predicted in general and the performance significantly changes using different GNN-models.
• Score: 0.1539132101969243
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The prediction of dynamical stability of power grids becomes more important and challenging with increasing shares of renewable energy sources due to their decentralized structure, reduced inertia and volatility. We investigate the feasibility of applying graph neural networks (GNN) to predict dynamic stability of synchronisation in complex power grids using the single-node basin stability (SNBS) as a measure. To do so, we generate two synthetic datasets for grids with 20 and 100 nodes respectively and estimate SNBS using Monte-Carlo sampling. Those datasets are used to train and evaluate the performance of eight different GNN-models. All models use the full graph without simplifications as input and predict SNBS in a nodal-regression-setup. We show that SNBS can be predicted in general and the performance significantly changes using different GNN-models. Furthermore, we observe interesting transfer capabilities of our approach: GNN-models trained on smaller grids can directly be applied on larger grids without the need of retraining.

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