Graph Neural Networks for Learning Real-Time Prices in Electricity Market

Shaohui Liu, Hao Zhu, Chengyang Wu

Publication date: 19 June 2021

Abstract: Solving the optimal power flow (OPF) problem in real-time electricity market improves the efficiency and reliability in the integration of low-carbon energy resources into the power grids. To address the scalability and adaptivity issues of existing end-to-end OPF learning solutions, we propose a new graph neural network (GNN) framework for predicting the electricity market prices from solving OPFs. The proposed GNN-for-OPF framework innovatively exploits the locality property of prices and introduces physics-aware regularization, while attaining reduced model complexity and fast adaptivity to varying grid topology. Numerical tests have validated the learning efficiency and adaptivity improvements of our proposed method over existing approaches.

Has companion code repository: https://github.com/ShaohuiLiu/GNN_OPF_electricity_market

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